OMB APPROVAL OMB Number: 3235-0570 Expires: January 31, 2017 Estimated average burden hours per response.....20.6 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES 		Investment Company Act file number 811-21781 Pioneer Series Trust IV (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cullen, Pioneer Investment Management, Inc., 60 State Street, Boston, MA 02109 (Name and address of agent for service) Registrant's telephone number, including area code: (617) 742-7825 Date of fiscal year end: July 31 Date of reporting period: August 1, 2014 through July 31, 2015 Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO STOCKHOLDERS. Pioneer Classic Balanced Fund -------------------------------------------------------------------------------- Annual Report | July 31, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A AOBLX Class C PCBCX Class R CBPRX Class Y AYBLX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents <Table> President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 12 Prices and Distributions 13 Performance Update 14 Comparing Ongoing Fund Expenses 18 Schedule of Investments 20 Financial Statements 47 Notes to Financial Statements 55 Report of Independent Registered Public Accounting Firm 66 Trustees, Officers and Service Providers 68 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 1 President's Letter Dear Shareowner, In the second half of 2015, two main issues have been dominating the attention of global investors and policymakers alike, and shaping the current investment environment: The Federal Reserve System's (the Fed's) deliberations over when to begin normalizing interest rates in the U.S., and the increasing divergence in economic activity around the globe. As 2015 began, market expectations were that the Fed would likely begin raising interest rates by the middle of the year, but a sluggish gross domestic product report in the first calendar quarter as well as relatively benign inflation and wage growth contributed to the Fed's taking a more cautionary approach and delaying the start of its rate-hike cycle. At the same time, however, the U.S. labor market has continued its robust improvement, moving the Fed closer to declaring victory on one of its main monetary policy objectives -- full employment. Meanwhile, global economic activity has continued to diverge, with developed economies experiencing above-trend growth and most emerging markets economies lagging the rest of the world. The slower pace of economic activity in the emerging markets has been most evident in China, as the country's economy continues to undergo a long, potentially painful adjustment from investment-led growth to consumption-oriented growth. This divergence in global economic cycles is likely to continue for some time, and we would expect an increased level of volatility as global capital markets and policymakers adjust. Pioneer Investments believes that investors in today's environment can potentially benefit from the consistent and disciplined investment approach we have used since our founding in 1928. We focus on identifying value across global markets using proprietary research, careful risk management, and a long-term perspective. Our ongoing goal is to produce compelling returns consistent with the stated objectives of our investment products, and with our 2 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 shareowners' expectations. We believe our shareowners can benefit from the experience and tenure of our investment teams as well as the insights generated from our extensive research process. As always, and particularly during times of market uncertainty, we encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short-and long-term goals, and to implement such a plan in a disciplined manner. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 3 Portfolio Management Discussion | 7/31/15 Stocks in the United States delivered positive returns during the 12-month period ended July 31, 2015. In the fixed-income markets, longer-maturity, higher-quality securities -- led by U.S. Treasuries -- tended to outperform more credit-sensitive debt. In the following interview, Richard Schlanger and Walter Hunnewell, Jr., discuss the market environment and the developments that affected the performance of Pioneer Classic Balanced Fund during the 12-month period. Mr. Schlanger, a vice president and a portfolio manager at Pioneer, and Mr. Hunnewell, a vice president and a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the 12-month period ended July 31, 2015? A Pioneer Classic Balanced Fund's Class A shares returned 6.82% at net asset value during the 12-month period ended July 31, 2015, while the Fund's benchmarks, the Standard & Poor's 500 Index (the S&P 500) and the Barclays Government/Credit Bond Index (the Barclays Index), returned 11.19% and 2.54%, respectively. During the same period, the average return of the 571 mutual funds in Lipper's Mixed-Asset Target Allocation Moderate Funds category was 2.88%, and the average return of the 920 mutual funds in Morningstar's Moderate Allocation Funds category was 4.25%. Q How would you describe the environment for investing in the domestic equity and fixed-income markets over the 12-month period ended July 31, 2015? A Both the stock market and the bond market generated positive returns over the 12 months. Volatility was prevalent throughout much of the period, however, with investor sentiment's becoming influenced by a number of factors, including: the perception that the U.S. economy was gaining strength, as monthly job gains averaged more than 200,000; the accompanying belief that the U.S. Federal Reserve System (the Fed) was preparing to tighten monetary policy by raising short-term interest rates; volatility in energy markets as oil prices declined early in the period, rose somewhat, and then dropped again towards the end of the 12 months; concerns over the effects of an economic slowdown in China; the start of a quantitative easing (QE) policy by the European Central Bank (ECB); and certain global political and economic developments, including the threat that Greece would default on its debt obligations. 4 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 The domestic stock market, as measured by the S&P 500, the Fund's equity benchmark, produced double-digit returns for the full period, despite a sharp dip in October 2014 that coincided with dramatic underperformance from the energy sector as oil prices plummeted. The declines in the prices of oil and other commodities raised concerns about weakening global economic growth trends, including in Europe, and the risk of deflation. Oil prices appeared to bottom in January 2015, however, and the decision by the ECB to initiate a QE program improved the outlook for Europe and increased investors' confidence that the global economy was not heading into a tailspin. After the rough month of October 2014, the stock market regained its positive momentum, although the rest of the 12-month period did not always feature smooth sailing for equities. Within the domestic equity market (as represented by the S&P 500), defensive sectors that were most directly linked to the health of the domestic economy - such as health care, consumer discretionary and consumer staples - led the market advance. Underperforming sectors in the S&P 500 included energy, materials and telecommunication services. With regard to fixed income, the market backdrop changed and became somewhat more volatile after the midpoint of the 12-month period, with longer-maturity government securities, notably U.S. Treasuries, giving up some of their gains from earlier in the period. Overall, the yield curve -- which reflects the difference between yields of longer-maturity and shorter-maturity securities -- flattened over the 12 months, with longer- maturity government securities outperforming shorter-maturity ones. After declining for a time, the yields of 10-Year Treasuries bottomed at 1.64% in mid-January 2015, and then began moving higher. Q How were the Fund's assets allocated between stocks and bonds during the 12-month period ended July 31, 2015, and how did the allocations affect the Fund's performance? A Throughout the 12 months, we kept the allocation to stocks in the Fund's total investment portfolio at above 60%, which is close to our allowable limit of 65% for equities. The higher allocation to equities had a positive effect on the Fund's results, as stocks outperformed fixed-income investments during the period. We maintained the heavier exposure to equities over fixed-income in the portfolio because we continued to believe that, in an improving economy with low interest rates, stocks offered the better relative investment value. As of July 31, 2015, stocks accounted for 59% of the Fund's total investment portfolio, while fixed-income securities represented just over 41%. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 5 Q What investment strategies or individual holdings most affected the benchmark-relative performance of the Fund's equity portfolio during the 12-month period ended July 31, 2015? A The performance of the Fund's equity portfolio kept pace with that of the benchmark S&P 500 Index over the 12-month period, as good stock selection results offset some of the negative effects of our sector allocation decisions. The Fund's positioning in health care, where the portfolio was heavily overweight, provided the greatest support to benchmark-relative returns during the period, while good stock selection results in the industrials sector also helped relative performance. The Fund's underweight to the underperforming telecommunication services sector made a slight positive contribution to benchmark-relative results. Meanwhile, the Fund's underweight to the outperforming consumer staples sector detracted from relative returns, but good stock selection within consumer staples offset the negative effects of the underweight. We had underweighted the portfolio to consumer staples because we were concerned with the high valuations in the sector. In energy, a sector which underperformed the overall market during the period, the portfolio's overweight position was neutral for benchmark-relative performance, as good stock selection results within the sector aided relative results. The largest detractor from the Fund's benchmark-relative performance during the period came from our stock picks in the financials sector, where results were particularly weak among the portfolio's holdings in banks, capital markets and insurance. In terms of stock selection, the greatest boost to the Fund's benchmark-relative performance came from our decision not to own any shares of oil giants ExxonMobil and Chevron in the portfolio. In addition, the Fund's large, overweight position in CVS Health, the pharmacy retail chain and prescription benefits manager, gave a significant boost to relative results, which were also helped by an investment in pharmaceutical company Actavis (now named Allergan following its acquisition of Allergan). Shares of Ross Stores, a discount retailer, also added to the Fund's benchmark-relative performance. Notable detractors from the Fund's relative results during the period were positions in ConocoPhillips, one of the larger oil exploration-and- production companies, and in Targa Resources, a provider of mid-stream 6 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 natural gas infrastructure services, which holds valuable assets along the Gulf of Mexico coast. Also detracting from relative performance was the Fund's investment in chemical firm LyondellBasell, which underperformed due to investor worries about the company's end-product pricing power. Finally, not owning any shares of Amazon, the giant online retailer, hurt relative returns as the company outperformed over the 12-month period. Q Could you discuss the changes you made to the Fund's equity portfolio during the 12-month period ended July 31, 2015, and the Fund's current positioning in equities? A As of July 31, 2015, the largest equity allocations in the Fund were to stocks that were most sensitive to the effects of an improving domestic economy and a brightening employment picture. The portfolio's largest equity overweights were in health care and in the financials sector, while the most significant underweights were in consumer staples and utilities. Among new holdings (added to the Fund's portfolio over the last six months of the period) are shares of banking firms JPMorgan Chase and Wells Fargo. We also initiated positions in pharmacy benefits manager Express Scripts, health insurer Humana, and retailers Foot Locker and Dollar General. With regard to sales, we liquidated the Fund's position in Bank of America during the period, and also sold shares of tobacco company Lorillard after it was acquired by Reynolds America. Finally, we sold positions in energy companies Marathon Petroleum and ConocoPhillips. Q Which of your investment strategies had the largest effects on the benchmark-relative performance of the Fund's fixed-income portfolio during the 12-month period ended July 31, 2015? A The Fund's fixed-income portfolio outperformed its Barclays Index benchmark during the 12-month period. Notable contributors to the Fund's relative results were the portfolio's out-of-benchmark exposures to commercial mortgage-backed securities, floating-rate bank loans, and event-linked bonds issued by property-and-casualty insurers. In addition, an out-of-benchmark allocation to government-agency mortgages, a position we increased during the period, supported relative performance. Holding back relative returns during the period was the portfolio's positioning along the yield curve -- specifically, a shorter-than- benchmark average duration and underweighted exposure to 30-year securities, which outperformed as market interest rates decreased over Pioneer Classic Balanced Fund | Annual Report | 7/31/15 7 the full 12-month period. (Duration is a measure of the sensitivity of the price - the value of principal - of a fixed-income investment to a change in interest rates, expressed as a number of years.) During the period's final six months, we did lengthen the portfolio's duration, but it remained substantially shorter than that of the Barclays Index. In addition, the Fund's significantly underweight position in U.S. Treasuries, which are highly sensitive to changes in interest rates, did not help relative performance. While Treasuries account for more than 50% of the Barclays Index, we kept the Fund's allocation to roughly 4.5% of the total fixed-income portfolio. As of July 31, 2015, the largest allocation in the Fund's fixed-income portfolio was to U.S. investment-grade corporate bonds, followed by government-agency mortgages. The Fund also had allocations to other asset classes such as international investment-grade debt, event-linked bonds, asset-backed securities, and commercial mortgage-backed securities. U.S. Treasuries accounted for a small portion (between 4% and 5%) of the Fund's fixed-income investment portfolio as of period end. Q Did the Fund have any investments in derivative securities during the 12-month period ended July 31, 2015? If so, did the holdings affect benchmark-relative performance? A We did hold some Treasury futures contracts in the portfolio as part of our short-duration strategy. The futures had a negligible effect on the Fund's performance. Meanwhile, the Fund had no exposure to derivatives in the equity portion of the portfolio. Q What factors affected the Fund's yield, or dividend distributions to shareholders during the 12-month period ended July 31, 2015? A The Fund's yield, or dividend*, remained relatively stable over the 12 months. With the Fund's equity investments, we strive to obtain current income through dividends, at a rate superior to that of the S&P 500. During the period, that goal was achieved, as the Fund's gross dividend yield from equities (before fees and expenses) was approximately 2.3%. On the other hand, the level of current income generated from the Fund's fixed-income portfolio was affected by the extraordinarily low rates available in the market over the full 12-month period. Market rates did, however, begin to move higher during the final six months of the period. Therefore, we think if the Fed, as expected, does increase short-term rates in the near future, and market rates continue to * Dividends are not guaranteed. 8 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 climb as they did over the final six months of the period, those circumstances would increase the possibility that the level of income generated by the Fund's fixed-income investments could start to rise. Q What is your investment outlook and how have you positioned the portfolio heading into the final months of 2015? A We believe prospects for the U.S. economy look good, although uncertainties continue to unsettle investor sentiment. In the United States, the economy -- as measured by recently revised gross domestic product (GDP) figures -- grew at an annual rate of nearly 4% during the second quarter of 2015, a noticeable improvement over the slight GDP increase of 0.6% in the first quarter. The job market continues to improve and the housing market appears to be healing, with household formation moving higher. All of those factors point to the Fed's starting to raise short-term interest rates very gradually before the end of the calendar year. Nevertheless, the market remains volatile. Slowing growth trends in China, combined with the devaluation of the Chinese currency and volatility in the Chinese equity markets, have caused much consternation among market participants. The debt situation in Greece remains a factor to be monitored. In light of mounting evidence that the domestic economy is strengthening, we believe that the Fed probably will begin tightening monetary policy late in 2015. We also anticipate that market rates for longer-maturity securities will climb further, especially if we see additional evidence of a pick-up in the domestic economy as well as the development of a market consensus that oil prices have finally bottomed out. We believe rates on longer-maturity securities are likely to remain volatile. In the Fund's fixed-income portfolio, we have maintained a shorter-than-benchmark duration stance as we enter the new fiscal year, even though we did increase duration, somewhat, over the final six months of the period as market rates increased. We also are maintaining the fixed-income portfolio's underweights to long-maturity securities as well as to debt instruments with maturities in the two-to-five-year range. Meanwhile, we continue to overweight the Fund to securities with maturities in the 10-year range. We have become more cautious about credit-sensitive securities such as corporate bonds, as we have witnessed Pioneer Classic Balanced Fund | Annual Report | 7/31/15 9 many companies beginning to increase the amount of leverage on their balance sheets. Therefore, we anticipate moving up in the capital structure with the Fund's credit-sensitive investments. In the Fund's equity portfolio, in light of our belief that the U.S. economy will continue in its slow recovery phase, we currently favor owning shares of companies that we believe can benefit from the improving labor and housing markets in the United States -- and expand their profits. As noted earlier, we continue to overweight the Fund's equity portfolio to companies in the health care sector, in particular, even in the wake of the sector's strong performance over the past 12 months. The Fund is also overweight to financial companies that we feel have attractive valuations and the potential to improve profit margins from cost-cutting and rising interest rates. Conversely, we have maintained the equity portfolio's underweights in the consumer staples and utilities sectors. 10 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Please refer to the Schedule of Investments on pages 20-46 for a full listing of Fund Securities. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The securities issued by U.S. Government-sponsored entities (e.g., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. Government. The Fund may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. Investments in high-yield or lower rated securities are subject to greater-than- average price volatility, illiquidity and possibility of default. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund invests in REIT securities, the value of which can fall for a variety of reasons, such as declines in rental income, fluctuating interest rates, poor property management, environmental liabilities, uninsured damage, increased competition, or changes in real estate tax laws. At times, the Fund's investments may represent industries or sectors that are interrelated or have common risks, making them more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 11 Portfolio Summary | 7/31/15 Portfolio Diversification* -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Common Stocks 54.7% International Corporate Bonds 12.3% U.S. Corporate Bonds 10.7% U.S. Government Securities 10.4% International Common Stocks 3.4% Collateralized Mortgage Obligations 3.3% Asset Backed Securities 1.5% Municipal Bonds 1.3% Senior Secured Loans 0.9% Foreign Government Bonds 0.6% Depositary Receipts for International Stocks 0.5% U.S. Preferred Stocks 0.2% Convertible Preferred Stocks 0.2% * Includes investments in insurance linked securities totaling 1.6% of total investment portfolio. Sector Distribution -------------------------------------------------------------------------------- (As a percentage of total long-term holdings) Financials 38.8% Health Care 14.5% Information Technology 12.7% Consumer Discretionary 9.2% Industrials 7.0% Energy 6.4% Consumer Staples 3.7% Materials 2.6% Utilities 2.0% Government 1.6% Telecommunication Services 1.5% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)** 1. Microsoft Corp. 2.63% -------------------------------------------------------------------------------- 2. Apple, Inc. 2.12 -------------------------------------------------------------------------------- 3. AbbVie, Inc. 2.05 -------------------------------------------------------------------------------- 4. Gilead Sciences, Inc. 1.89 -------------------------------------------------------------------------------- 5. CVS Health Corp. 1.82 -------------------------------------------------------------------------------- 6. Pfizer, Inc. 1.60 -------------------------------------------------------------------------------- 7. Merck & Co., Inc. 1.48 -------------------------------------------------------------------------------- 8. Celgene Corp. 1.38 -------------------------------------------------------------------------------- 9. JPMorgan Chase & Co. 1.36 -------------------------------------------------------------------------------- 10. Lowe's Companies, Inc. 1.33 -------------------------------------------------------------------------------- ** This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 12 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Prices and Distributions | 7/31/15 Net Asset Value per Share -------------------------------------------------------------------------------- Class 7/31/15 7/31/14 -------------------------------------------------------------------------------- A $9.36 $9.76 -------------------------------------------------------------------------------- C $9.30 $9.70 -------------------------------------------------------------------------------- Y $9.41 $9.79 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 7/31/15 7/1/15* -------------------------------------------------------------------------------- R $9.36 $9.27 -------------------------------------------------------------------------------- Distributions per Share: 8/1/14-7/31/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.1838 $0.0578 $0.7997 -------------------------------------------------------------------------------- C $0.1191 $0.0578 $0.7997 -------------------------------------------------------------------------------- R $ -- $ -- $ -- -------------------------------------------------------------------------------- Y $0.1981 $0.0578 $0.7997 -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Standard & Poor's 500 Index is an unmanaged, commonly used measure of the broad U.S. stock market. The Barclays Government/Credit Bond Index is unmanaged, and measures the performance of debt obligations of the U.S. government agencies and investment-grade domestic corporate debt. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The indices defined here pertain to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts on pages 14-17. * Class R shares commenced operations on July 1, 2015. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 13 Performance Update | 7/31/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Classic Balanced Fund at public offering price during the periods shown, compared to that of the Standard & Poor's 500 Index and Barclays Government/Credit Bond Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays Govern- Net Public ment/ Standard Asset Offering Credit & Poor's Value Price Bond 500 Period (NAV) (POP) Index Index -------------------------------------------------------------------------------- 10 Years 6.76% 6.27% 4.58% 7.72% 5 Years 10.85 9.83 3.43 16.23 1 Year 6.82 2.02 2.54 11.19 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated July 1, 2015) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.25% 1.16% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Classic Barclays Government/ Standard & Poor's Balanced Fund Credit Bond Index 500 Index 7/31/2005 $ 9,550 $10,000 $10,000 7/31/2006 $10,272 $10,090 $10,538 7/31/2007 $11,343 $10,664 $12,237 7/31/2008 $10,490 $11,323 $10,880 7/31/2009 $ 9,970 $12,131 $ 8,709 7/31/2010 $10,975 $13,216 $ 9,915 7/31/2011 $12,628 $13,814 $11,863 7/31/2012 $13,134 $14,981 $12,943 7/31/2013 $15,132 $14,682 $16,177 7/31/2014 $17,195 $15,258 $18,914 7/31/2015 $18,368 $15,647 $21,031 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. POP returns reflect deduction of the maximum 4.50% sales charge. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through December 1, 2016, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Classic Balanced Fund acquired the assets and liabilities of AmSouth Balanced Fund on September 23, 2005. The performance shown for Class A shares of the Fund for periods prior to September 23, 2005, is based on the performance of AmSouth Balanced Fund's Class A shares prior to the reorganization, which has been restated to reflect differences in any applicable sales charges (but not differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class A shares of the Fund would be lower. 14 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Performance Update | 7/31/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Classic Balanced Fund during the periods shown, compared to that of the Standard & Poor's 500 Index and Barclays Government/Credit Bond Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays Govern- ment/ Standard Credit & Poor's If If Re- Bond 500 Period Held deemed Index Index -------------------------------------------------------------------------------- 10 Years 5.92% 5.92% 4.58% 7.72% 5 Years 9.94 9.94 3.43 16.23 1 Year 6.14 6.14 2.54 11.19 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated July 1, 2015) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.95% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Classic Barclays Government/ Standard & Poor's Balanced Fund Credit Bond Index 500 Index 7/31/2005 $10,000 $10,000 $10,000 7/31/2006 $10,714 $10,090 $10,538 7/31/2007 $11,736 $10,664 $12,237 7/31/2008 $10,750 $11,323 $10,880 7/31/2009 $10,127 $12,131 $ 8,709 7/31/2010 $11,062 $13,216 $ 9,915 7/31/2011 $12,609 $13,814 $11,863 7/31/2012 $13,002 $14,981 $12,943 7/31/2013 $14,868 $14,682 $16,177 7/31/2014 $16,742 $15,258 $18,914 7/31/2015 $17,770 $15,647 $21,031 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Classic Balanced Fund acquired the assets and liabilities of AmSouth Balanced Fund on September 23, 2005. The performance shown for Class C shares for periods prior to September 23, 2005, is based upon the performance of AmSouth Balanced Fund's Class B shares as adjusted to reflect sales charges applicable to Class C shares (but not other differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class C shares of the Fund would be lower. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 15 Performance Update | 7/31/15 Class R Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class R shares of Pioneer Classic Balanced Fund during the periods shown, compared to that of the Standard & Poor's 500 Index and Barclays Government/Credit Bond Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays Govern- Net ment/ Standard Asset Credit & Poor's Value Bond 500 Period (NAV) Index Index -------------------------------------------------------------------------------- 10 Years 6.76% 4.58% 7.72% 5 Years 10.85 3.43 16.23 1 Year 6.82 2.54 11.19 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated July 1, 2015) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.53% 1.30% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Classic Barclays Government/ Standard & Poor's Balanced Fund Credit Bond Index 500 Index 7/31/2005 $10,000 $10,000 $10,000 7/31/2006 $10,752 $10,090 $10,538 7/31/2007 $11,873 $10,664 $12,237 7/31/2008 $10,980 $11,323 $10,880 7/31/2009 $10,436 $12,131 $ 8,709 7/31/2010 $11,488 $13,216 $ 9,915 7/31/2011 $13,218 $13,814 $11,863 7/31/2012 $13,748 $14,981 $12,943 7/31/2013 $15,840 $14,682 $16,177 7/31/2014 $17,998 $15,258 $18,914 7/31/2015 $19,227 $15,647 $21,031 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. The performance shown for Class R shares for the period prior to the commencement of operations of Class R shares on July 1, 2015, is the net asset value performance of the Fund's Class A shares, which has not been restated to reflect any differences in expenses, including Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares generally are higher than those of Class R shares, the performance of Class R shares prior to their inception would have been higher than the performance shown. For the period beginning July 1, 2015, the actual performance of Class R shares is reflected. Class R shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. The net expense ratio reflects the contractual expense limitation currently in effect through December 1, 2016, for Class R shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers, Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 16 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Performance Update | 7/31/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Classic Balanced Fund during the periods shown, compared to that of the Standard & Poor's 500 Index and Barclays Government/Credit Bond Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays Govern- Net ment/ Standard Asset Credit & Poor's Value Bond 500 Period (NAV) Index Index -------------------------------------------------------------------------------- 10 Years 7.10% 4.58% 7.72% 5 Years 11.17 3.43 16.23 1 Year 7.17 2.54 11.19 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated July 1, 2015) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.95% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Classic Barclays Government/ Standard & Poor's Balanced Fund Credit Bond Index 500 Index 7/31/2005 $5,000,000 $5,000,000 $ 5,000,000 7/31/2006 $5,394,371 $5,045,106 $ 5,268,811 7/31/2007 $5,977,899 $5,331,906 $ 6,118,402 7/31/2008 $5,544,683 $5,661,393 $ 5,439,820 7/31/2009 $5,288,345 $6,065,534 $ 4,354,619 7/31/2010 $5,847,875 $6,608,020 $ 4,957,442 7/31/2011 $6,742,325 $6,906,996 $ 5,931,480 7/31/2012 $7,039,168 $7,490,281 $ 6,471,581 7/31/2013 $8,145,261 $7,340,828 $ 8,088,333 7/31/2014 $9,267,036 $7,629,124 $ 9,457,008 7/31/2015 $9,931,844 $7,823,256 $10,515,715 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Pioneer Classic Balanced Fund acquired the assets and liabilities of AmSouth Balanced Fund on September 23, 2005. The performance shown for Class Y shares of the Fund for periods prior to September 23, 2005, is based on the performance of AmSouth Balanced Fund's Class I shares prior to the reorganization, which has been restated to reflect differences in any applicable sales charges (but not differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class Y shares of the Fund would be lower. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 17 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Classic Balanced Fund Based on actual returns from February 1, 2015 through July 31, 2015. ------------------------------------------------------------------------------------------------------ Share Class A C R Y ------------------------------------------------------------------------------------------------------ Beginning Account Value $1,000.00 $1,000.00 $1,000.00 $1,000.00 on 2/1/15* ------------------------------------------------------------------------------------------------------ Ending Account $1,037.39 $1,033.19 $1,009.70 $1,038.27 Value (after expenses) on 7/31/15 ------------------------------------------------------------------------------------------------------ Expenses Paid $ 6.31 $ 10.18 $ 1.19 $ 5.21 During Period** ------------------------------------------------------------------------------------------------------ * Period begins July 1, 2015 (commencement of operations) for Class R shares. ** Expenses are equal to the Fund's annualized net expense ratio, plus ratio of the underlying funds. These combined totals were 1.25%, 2.02%, 1.39% and 1.03% for Class A, Class C, Class R and Class Y shares, respectively. These combined totals were multiplied by the average account value over the period, then multiplied by 181/365 (31/365 for Class R shares)(to reflect the one half-year period). 18 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Classic Balanced Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from February 1, 2015 through July 31, 2015. ------------------------------------------------------------------------------------------------------ Share Class A C R Y ------------------------------------------------------------------------------------------------------ Beginning Account Value $1,000.00 $1,000.00 $1,000.00 $1,000.00 on 2/1/15* ------------------------------------------------------------------------------------------------------ Ending Account $1,018.60 $1,014.78 $1,003.07 $1,019.69 Value (after expenses) on 7/31/15 ------------------------------------------------------------------------------------------------------ Expenses Paid $ 6.26 $ 10.09 $ 1.18 $ 5.16 During Period** ------------------------------------------------------------------------------------------------------ * Period begins July 1, 2015 (commencement of operations) for Class R shares. ** Expenses are equal to the Fund's annualized net expense ratio, plus ratio of the underlying funds. These combined totals were 1.25%, 2.02%, 1.39% and 1.03% for Class A, Class C, Class R and Class Y shares, respectively. These combined totals were multiplied by the average account value over the period, then multiplied by 181/365 (31/365 for Class R shares)(to reflect the one half-year period). Pioneer Classic Balanced Fund | Annual Report | 7/31/15 19 Schedule of Investments | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ PREFERRED STOCKS -- 0.2% BANKS -- 0.0%+ Diversified Banks -- 0.0%+ 1,789 7.88 Citigroup Capital XIII, Floating Rate Note, 10/30/40 $ 45,566 2,137 6.00 US Bancorp, Floating Rate Note (Perpetual) 57,485 --------------- $ 103,051 --------------- Total Banks $ 103,051 ------------------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 0.0%+ Asset Management & Custody Banks -- 0.0%+ 1,400 5.90 State Street Corp., Floating Rate Note, 12/31/73 $ 36,358 --------------- Total Diversified Financials $ 36,358 ------------------------------------------------------------------------------------------------------------ INSURANCE -- 0.2% Property & Casualty Insurance -- 0.2% 20,649 5.10 The Allstate Corp., Floating Rate Note, 1/15/53 $ 536,874 --------------- Total Insurance $ 536,874 ------------------------------------------------------------------------------------------------------------ TOTAL PREFERRED STOCKS (Cost $653,519) $ 676,283 ------------------------------------------------------------------------------------------------------------ CONVERTIBLE PREFERRED STOCK -- 0.3% BANKS -- 0.3% Diversified Banks -- 0.3% 700 Wells Fargo & Co., 7.5% (Perpetual) $ 834,477 ------------------------------------------------------------------------------------------------------------ TOTAL CONVERTIBLE PREFERRED STOCK (Cost $730,069) $ 834,477 ------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------ Shares ------------------------------------------------------------------------------------------------------------ COMMON STOCKS -- 62.5% ENERGY -- 4.2% Oil & Gas Refining & Marketing -- 0.9% 15,701 Phillips 66 $ 1,248,230 19,994 Valero Energy Corp. 1,311,606 --------------- $ 2,559,836 ------------------------------------------------------------------------------------------------------------ Oil & Gas Storage & Transportation -- 3.3% 98,108 Kinder Morgan, Inc. $ 3,398,461 47,111 Spectra Energy Corp. 1,425,579 14,544 Targa Resources Corp. 1,286,417 67,977 The Williams Companies, Inc. 3,567,433 --------------- $ 9,677,890 --------------- Total Energy $ 12,237,726 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 20 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Shares Value ------------------------------------------------------------------------------------------------------------ MATERIALS -- 1.6% Commodity Chemicals -- 1.1% 34,887 LyondellBasell Industries NV $ 3,273,447 ------------------------------------------------------------------------------------------------------------ Fertilizers & Agricultural Chemicals -- 0.5% 14,974 Monsanto Co. $ 1,525,701 --------------- Total Materials $ 4,799,148 ------------------------------------------------------------------------------------------------------------ CAPITAL GOODS -- 3.6% Aerospace & Defense -- 1.1% 30,162 Honeywell International, Inc. $ 3,168,518 ------------------------------------------------------------------------------------------------------------ Electrical Components & Equipment -- 0.6% 15,599 Rockwell Automation, Inc. $ 1,821,651 ------------------------------------------------------------------------------------------------------------ Construction & Farm Machinery & Heavy Trucks -- 0.6% 12,339 Cummins, Inc. $ 1,598,271 ------------------------------------------------------------------------------------------------------------ Industrial Machinery -- 1.3% 26,648 Ingersoll-Rand Plc $ 1,636,187 13,618 Snap-on, Inc. 2,244,246 --------------- $ 3,880,433 --------------- Total Capital Goods $ 10,468,873 ------------------------------------------------------------------------------------------------------------ COMMERCIAL SERVICES & SUPPLIES -- 1.5% Diversified Support Services -- 1.1% 34,145 G&K Services, Inc. $ 2,238,546 27,405 KAR Auction Services, Inc. 1,066,877 --------------- $ 3,305,423 ------------------------------------------------------------------------------------------------------------ Research & Consulting Services -- 0.4% 24,328 Nielsen NV* $ 1,178,935 --------------- Total Commercial Services & Supplies $ 4,484,358 ------------------------------------------------------------------------------------------------------------ TRANSPORTATION -- 0.9% Airlines -- 0.9% 64,310 American Airlines Group, Inc. $ 2,578,831 --------------- Total Transportation $ 2,578,831 ------------------------------------------------------------------------------------------------------------ AUTOMOBILES & COMPONENTS -- 0.6% Automobile Manufacturers -- 0.6% 109,518 Ford Motor Co. $ 1,624,152 --------------- Total Automobiles & Components $ 1,624,152 ------------------------------------------------------------------------------------------------------------ CONSUMER SERVICES -- 0.6% Restaurants -- 0.6% 19,085 McDonald's Corp. $ 1,905,828 --------------- Total Consumer Services $ 1,905,828 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 21 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Shares Value ------------------------------------------------------------------------------------------------------------ MEDIA -- 2.7% Broadcasting -- 0.9% 19,776 CBS Corp. (Class B) $ 1,057,423 21,937 Gannett Co., Inc. 277,503 43,874 TEGNA, Inc. 1,278,050 --------------- $ 2,612,976 ------------------------------------------------------------------------------------------------------------ Movies & Entertainment -- 1.5% 58,905 Regal Entertainment Group $ 1,213,443 25,111 The Walt Disney Co. 3,013,320 --------------- $ 4,226,763 ------------------------------------------------------------------------------------------------------------ Publishing -- 0.3% 40,399 Time, Inc. $ 901,706 --------------- Total Media $ 7,741,445 ------------------------------------------------------------------------------------------------------------ RETAILING -- 3.7% General Merchandise Stores -- 0.7% 23,500 Target Corp. $ 1,923,475 ------------------------------------------------------------------------------------------------------------ Apparel Retail -- 1.7% 31,412 Foot Locker, Inc. $ 2,216,117 51,450 Ross Stores, Inc. 2,735,082 --------------- $ 4,951,199 ------------------------------------------------------------------------------------------------------------ Home Improvement Retail -- 1.3% 54,380 Lowe's Companies, Inc. $ 3,771,797 --------------- Total Retailing $ 10,646,471 ------------------------------------------------------------------------------------------------------------ FOOD & STAPLES RETAILING -- 1.8% Drug Retail -- 1.8% 46,162 CVS Health Corp. $ 5,191,840 --------------- Total Food & Staples Retailing $ 5,191,840 ------------------------------------------------------------------------------------------------------------ FOOD, BEVERAGE & TOBACCO -- 1.6% Brewers -- 0.3% 12,410 Molson Coors Brewing Co. (Class B) $ 882,847 ------------------------------------------------------------------------------------------------------------ Soft Drinks -- 0.6% 38,149 The Coca-Cola Co. $ 1,567,161 ------------------------------------------------------------------------------------------------------------ Tobacco -- 0.7% 38,704 Altria Group, Inc. $ 2,104,724 --------------- Total Food, Beverage & Tobacco $ 4,554,732 ------------------------------------------------------------------------------------------------------------ HEALTH CARE EQUIPMENT & SERVICES -- 4.4% Health Care Equipment -- 0.9% 34,094 Medtronic Plc $ 2,672,629 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 22 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Shares Value ------------------------------------------------------------------------------------------------------------ Health Care Distributors -- 1.9% 21,134 Cardinal Health, Inc. $ 1,795,967 16,777 McKesson Corp. 3,700,503 --------------- $ 5,496,470 ------------------------------------------------------------------------------------------------------------ Health Care Services -- 0.9% 27,361 Express Scripts Holding Co.* $ 2,464,405 ------------------------------------------------------------------------------------------------------------ Managed Health Care -- 0.7% 11,613 Humana, Inc. $ 2,114,611 --------------- Total Health Care Equipment & Services $ 12,748,115 ------------------------------------------------------------------------------------------------------------ PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 10.6% Biotechnology -- 3.2% 29,808 Celgene Corp.* $ 3,912,300 45,706 Gilead Sciences, Inc.* 5,386,909 --------------- $ 9,299,209 ------------------------------------------------------------------------------------------------------------ Pharmaceuticals -- 7.4% 83,213 AbbVie, Inc. $ 5,825,742 10,994 Allergan Plc 3,640,663 45,902 AstraZeneca Plc (A.D.R.) 1,551,029 12,334 Mallinckrodt Plc* 1,528,923 71,337 Merck & Co., Inc. 4,206,030 126,340 Pfizer, Inc. 4,555,820 --------------- $ 21,308,207 Total Pharmaceuticals, Biotechnology & --------------- Life Sciences $ 30,607,416 ------------------------------------------------------------------------------------------------------------ BANKS -- 5.9% Diversified Banks -- 2.2% 56,539 JPMorgan Chase & Co. $ 3,874,618 44,636 Wells Fargo & Co. 2,583,085 --------------- $ 6,457,703 ------------------------------------------------------------------------------------------------------------ Regional Banks -- 3.3% 60,896 Citizens Financial Group, Inc. $ 1,587,559 87,304 Huntington Bancshares, Inc. 1,018,838 89,645 KeyCorp 1,330,332 59,245 People's United Financial, Inc. 963,916 31,299 SunTrust Banks, Inc. 1,387,798 31,589 The PNC Financial Services Group, Inc. 3,101,408 --------------- $ 9,389,851 ------------------------------------------------------------------------------------------------------------ Thrifts & Mortgage Finance -- 0.4% 61,875 New York Community Bancorp, Inc. $ 1,177,481 --------------- Total Banks $ 17,025,035 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 23 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Shares Value ------------------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 3.0% Specialized Finance -- 0.9% 27,592 CME Group, Inc./IL $ 2,649,936 ------------------------------------------------------------------------------------------------------------ Consumer Finance -- 0.4% 20,251 Discover Financial Services, Inc. $ 1,130,208 ------------------------------------------------------------------------------------------------------------ Asset Management & Custody Banks -- 1.0% 101,721 Ares Capital Corp. $ 1,636,691 74,957 TCP Capital Corp. 1,140,096 --------------- $ 2,776,787 ------------------------------------------------------------------------------------------------------------ Investment Banking & Brokerage -- 0.7% 37,986 Lazard, Ltd. $ 2,104,804 --------------- Total Diversified Financials $ 8,661,735 ------------------------------------------------------------------------------------------------------------ REAL ESTATE -- 2.4% Hotel & Resort REIT -- 1.2% 106,753 Chesapeake Lodging Trust $ 3,423,569 ------------------------------------------------------------------------------------------------------------ Specialized REIT -- 1.2% 59,617 Iron Mountain, Inc. $ 1,791,491 15,719 Lamar Advertising Co. 943,926 33,707 Outfront Media, Inc. 847,057 --------------- $ 3,582,474 --------------- Total Real Estate $ 7,006,043 ------------------------------------------------------------------------------------------------------------ SOFTWARE & SERVICES -- 7.3% Internet Software & Services -- 3.7% 52,352 eBay, Inc.* $ 1,472,138 31,437 Facebook, Inc.* 2,955,392 5,709 Google, Inc. (Class A)* 3,753,668 4,016 Google, Inc. (Class C) 2,512,450 --------------- $ 10,693,648 ------------------------------------------------------------------------------------------------------------ Data Processing & Outsourced Services -- 0.7% 52,352 PayPal Holdings, Inc. $ 2,026,022 ------------------------------------------------------------------------------------------------------------ Systems Software -- 2.9% 10,848 Check Point Software Technologies, Ltd.* $ 876,193 159,919 Microsoft Corp. 7,468,217 --------------- $ 8,344,410 --------------- Total Software & Services $ 21,064,080 ------------------------------------------------------------------------------------------------------------ TECHNOLOGY HARDWARE & EQUIPMENT -- 3.5% Communications Equipment -- 0.9% 19,292 F5 Networks, Inc.* $ 2,587,829 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 24 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Shares Value ------------------------------------------------------------------------------------------------------------ Computer Storage & Peripherals -- 2.6% 49,718 Apple, Inc. $ 6,030,793 54,692 EMC Corp. 1,470,668 --------------- $ 7,501,461 --------------- Total Technology Hardware & Equipment $ 10,089,290 ------------------------------------------------------------------------------------------------------------ SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 1.9% Semiconductors -- 1.9% 21,499 Analog Devices, Inc. $ 1,254,037 25,142 Broadcom Corp. 1,272,437 48,766 Intel Corp. 1,411,776 38,136 Microchip Technology, Inc. 1,633,746 --------------- $ 5,571,996 --------------- Total Semiconductors & Semiconductor Equipment $ 5,571,996 ------------------------------------------------------------------------------------------------------------ TELECOMMUNICATION SERVICES -- 0.7% Integrated Telecommunication Services -- 0.7% 40,804 Verizon Communications, Inc. $ 1,909,219 --------------- Total Telecommunication Services $ 1,909,219 ------------------------------------------------------------------------------------------------------------ TOTAL COMMON STOCKS (Cost $145,838,197) $ 180,916,333 ------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) ------------------------------------------------------------------------------------------------------------ ASSET BACKED SECURITIES -- 1.6% CONSUMER SERVICES -- 0.2% Hotels, Resorts & Cruise Lines -- 0.2% 414,765 Westgate Resorts 2014-1 LLC, 3.25%, 12/20/26 (144A) $ 412,650 140,230 Westgate Resorts LLC, 9.5%, 2/20/25 (144A) 140,115 --------------- $ 552,765 --------------- Total Consumer Services $ 552,765 ------------------------------------------------------------------------------------------------------------ BANKS -- 1.1% Thrifts & Mortgage Finance -- 1.1% 250,000 Ascentium Equipment Receivables 2015-1 LLC, 3.24%, 1/10/22 (144A) $ 251,111 117,075 0.69 Bayview Financial Mortgage Pass-Through Trust 2005-C, Floating Rate Note, 6/28/44 116,173 150,000 California Republic Auto Receivables Trust 2014-3, 3.61%, 6/15/21 151,106 187,138 Consumer Credit Origination Loan Trust 2015-1, 2.82%, 3/15/21 (144A) 187,691 97,652 Credit-Based Asset Servicing and Securitization LLC, 5.33%, 7/25/35 (Step) 98,384 The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 25 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Thrifts & Mortgage Finance -- (continued) 54,258 Lehman ABS Manufactured Housing Contract Trust 2001-B, 5.873%, 4/15/40 $ 57,213 189,803 Nations Equipment Finance Funding II LLC, 3.276%, 1/22/19 (144A) 191,319 350,000 Navitas Equipment Receivables LLC 2015-1, 4.5%, 6/17/19 (144A) 350,662 265,000 1.77 NovaStar Mortgage Funding Trust Series 2004-3, Floating Rate Note, 12/25/34 252,458 335,000 0.79 PFS Financing Corp., Floating Rate Note, 2/15/19 (144A) 334,375 397,667 STORE Master Funding LLC, 4.21%, 4/20/44 (144A) 405,382 152,409 STORE Master Funding LLC, 5.77%, 8/20/42 (144A) 163,991 60,937 0.32 Structured Asset Securities Corp., Mortgage Loan Trust 2007-BC2, Floating Rate Note, 3/25/37 60,666 514,926 SVO 2012-A VOI Mortgage LLC, 2.0%, 9/20/29 (144A) 509,193 127,520 VOLT XIX LLC, 3.875%, 4/26/55 (Step) 127,806 --------------- $ 3,257,530 --------------- Total Banks $ 3,257,530 ------------------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 0.2% Other Diversified Financial Services -- 0.0%+ 99,989 AXIS Equipment Finance Receivables II LLC, 3.81%, 4/20/18 $ 101,491 ------------------------------------------------------------------------------------------------------------ Specialized Finance -- 0.1% 305,000 0.63 GE Dealer Floorplan Master Note Trust, Floating Rate Note, 10/20/17 $ 304,970 ------------------------------------------------------------------------------------------------------------ Consumer Finance -- 0.1% 250,000 AmeriCredit Automobile Receivables Trust 2012-4, 3.82%, 2/10/20 (144A) $ 255,960 38,007 California Republic Auto Receivables Trust 2012-1, 1.18%, 8/15/17 (144A) 38,045 --------------- $ 294,005 --------------- Total Diversified Financials $ 700,466 ------------------------------------------------------------------------------------------------------------ GOVERNMENT -- 0.1% 171,389 2.19 Fannie Mae Connecticut Avenue Securities, Floating Rate Note, 10/25/23 $ 173,390 --------------- Total Government $ 173,390 ------------------------------------------------------------------------------------------------------------ TOTAL ASSET BACKED SECURITIES (Cost $4,685,619) $ 4,684,151 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 26 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ COLLATERALIZED MORTGAGE OBLIGATIONS -- 3.6% MATERIALS -- 0.1% Forest Products -- 0.1% 350,000 TimberStar Trust I, 7.5296%, 10/15/36 (144A) $ 358,344 --------------- Total Materials $ 358,344 ------------------------------------------------------------------------------------------------------------ BANKS -- 3.1% Thrifts & Mortgage Finance -- 3.1% 234,510 0.49 ASG Resecuritization Trust 2010-3, Floating Rate Note, 12/29/45 (144A) $ 225,784 330,000 2.39 BAMLL Commercial Mortgage Securities Trust 2014-FL1, Floating Rate Note, 12/17/31 (144A) 330,674 200,000 2.14 BAMLL Commercial Mortgage Securities Trust 2014-INLD, Floating Rate Note, 12/17/29 199,875 134,670 Banc of America Alternative Loan Trust 2003-2, 5.75%, 4/25/33 139,503 37,025 Banc of America Mortgage Trust 2004-11, 5.75%, 1/25/35 37,851 400,000 4.99 Bear Stearns Commercial Mortgage Securities Trust 2005-PWR9, Floating Rate Note, 9/11/42 400,237 290,000 2.04 Carefree Portfolio Trust 2014-CARE, Floating Rate Note, 11/15/19 (144A) 291,306 100,000 4.65 City Center Trust 2011-CCHP, Floating Rate Note, 7/17/28 (144A) 101,074 168,000 COMM 2012-CCRE4 Mortgage Trust, 2.436%, 10/17/45 168,984 18,852 4.89 Commercial Mortgage Trust 2005-GG3, Floating Rate Note, 8/10/42 18,857 138,801 Credit Suisse First Boston Mortgage Securities Corp., 4.877%, 4/15/37 138,909 333,000 1.49 Del Coronado Trust 2013-DEL, Floating Rate Note, 3/16/26 (144A) 332,728 781,515 Federal Home Loan Mortgage Corp., REMICS, 3.5%, 11/15/25 824,131 63,479 Federal Home Loan Mortgage Corp., 3.0%, 10/15/38 65,736 130,483 0.59 Federal National Mortgage Association, Floating Rate Note, 2/25/41 131,068 420,000 3.49 GAHR Commercial Mortgage Trust 2015-NRF, Floating Rate Note, 12/15/19 (144A) 418,656 77,585 Global Mortgage Securitization, Ltd., 5.25%, 4/25/32 74,965 209,559 0.81 Impac CMB Trust Series 2004-4, Floating Rate Note, 9/25/34 200,146 250,000 JP Morgan Chase Commercial Mortgage Securities Trust 2010-C2, 3.6159%, 11/15/43 (144A) 259,962 1,051,265 3.00 JP Morgan Mortgage Trust 2014-2, Floating Rate Note, 6/25/29 (144A) 1,069,867 The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 27 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Thrifts & Mortgage Finance -- (continued) 80,930 0.44 Lehman Brothers Small Balance Commercial, Floating Rate Note, 2/25/30 (144A) $ 76,546 144,520 MASTR Alternative Loan Trust 2004-6, 6.0%, 7/25/34 147,038 33,458 0.97 Merrill Lynch Mortgage Investors Trust Series MLCC 2004-D REMICS, Floating Rate Note, 9/25/29 28,971 267,711 5.47 ML-CFC Commercial Mortgage Trust 2006-1, Floating Rate Note, 2/12/39 270,502 637,626 3.25 NRP Mortgage Trust 2013-1, Floating Rate Note, 7/25/43 (144A) 640,395 36,286 ORES NPL 2013-LV2 LLC, 3.081%, 9/25/25 (144A) 36,286 756,290 RALI Series 2003-QR24 Trust REMICS, 4.0%, 7/25/33 758,963 65,248 RALI Series 2004-QS3 Trust, 5.0%, 3/25/19 66,675 41,501 0.79 RALI Series 2004-QS5 Trust, Floating Rate Note, 4/25/34 41,043 71,240 Residential Asset Securitization Trust 2004-A8, 5.25%, 11/25/34 72,090 250,000 2.34 Resource Capital Corp., CRE Notes 2013, Ltd., Floating Rate Note, 12/15/28 (144A) 250,130 82,375 2.25 Sequoia Mortgage Trust 2013-8, Floating Rate Note, 6/25/43 79,650 136,717 3.00 Sequoia Mortgage Trust 2013-8, Floating Rate Note, 6/25/43 133,203 98,816 2.86 Structured Adjustable Rate Mortgage Loan Trust Class 1A1, Floating Rate Note, 3/25/34 98,359 99,970 2.40 Structured Adjustable Rate Mortgage Loan Trust, Floating Rate Note, 1/25/35 99,154 105,816 2.63 Structured Adjustable Rate Mortgage Loan Trust, Floating Rate Note, 9/25/34 105,483 505,152 2.62 Velocity Commercial Capital Loan Trust 2015-1, Floating Rate Note, 6/25/45 (144A) 505,152 --------------- $ 8,839,953 --------------- Total Banks $ 8,839,953 ------------------------------------------------------------------------------------------------------------ Government -- 0.4% 88,141 0.84 Federal Home Loan Mortgage Corp., REMICS, Floating Rate Note, 2/15/24 $ 90,987 97,316 0.59 Federal Home Loan Mortgage Corp., REMICS, Floating Rate Note, 5/15/41 97,947 70,581 0.51 Federal National Mortgage Association REMICS, Floating Rate Note, 11/25/36 70,934 114,637 3.26 Federal National Mortgage Association REMICS, Floating Rate Note, 3/25/39 112,821 106,396 0.49 Federal National Mortgage Association REMICS, Floating Rate Note, 4/25/36 106,604 The accompanying notes are an integral part of these financial statements. 28 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Government -- (continued) 289,637 0.64 Federal National Mortgage Association REMICS, Floating Rate Note, 7/25/41 $ 292,217 46,188 0.74 Federal National Mortgage Association REMICS, Floating Rate Note, 9/25/37 46,741 71,589 1.54 Freddie Mac Structured Agency Credit Risk Debt Notes, Floating Rate Note, 8/25/24 71,572 109,000 3.95 FREMF Mortgage Trust Class B, Floating Rate Note, 6/25/47 (144A) 113,225 48,842 0.69 Government National Mortgage Association, Floating Rate Note, 11/20/30 49,196 --------------- $ 1,052,244 --------------- Total Government $ 1,052,244 ------------------------------------------------------------------------------------------------------------ TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $10,248,905) $ 10,250,541 ------------------------------------------------------------------------------------------------------------ CORPORATE BONDS -- 16.6% ENERGY -- 2.6% Oil & Gas Drilling -- 0.2% 250,000 Ensco Plc, 4.5%, 10/1/24 $ 229,091 225,000 Pride International, Inc., 6.875%, 8/15/20 252,099 100,000 Rowan Companies, Inc., 4.75%, 1/15/24 93,997 --------------- $ 575,187 ------------------------------------------------------------------------------------------------------------ Oil & Gas Equipment & Services -- 0.2% 250,000 Helmerich & Payne International Drilling Co., 4.65%, 3/15/25 (144A) $ 257,547 250,000 Weatherford International, Ltd., Bermuda, 5.95%, 4/15/42 199,453 205,000 Weatherford International, Ltd., Bermuda, 9.625%, 3/1/19 234,006 --------------- $ 691,006 ------------------------------------------------------------------------------------------------------------ Integrated Oil & Gas -- 0.3% 250,000 ConocoPhillips Co., 2.875%, 11/15/21 $ 250,528 175,000 Ecopetrol SA, 4.25%, 9/18/18 182,000 175,000 Exxon Mobil Corp., 2.397%, 3/6/22 172,192 250,000 Statoil ASA, 2.9%, 11/8/20 257,672 --------------- $ 862,392 ------------------------------------------------------------------------------------------------------------ Oil & Gas Exploration & Production -- 0.2% 200,000 Dolphin Energy, Ltd., 5.5%, 12/15/21 (144A) $ 227,600 400,000 Novatek OAO via Novatek Finance, Ltd., 4.422%, 12/13/22 (144A) 346,660 --------------- $ 574,260 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 29 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Oil & Gas Refining & Marketing -- 0.4% 300,000 GS Caltex Corp., 3.25%, 10/1/18 (144A) $ 306,262 360,000 Motiva Enterprises LLC, 5.75%, 1/15/20 (144A) 398,262 370,000 Valero Energy Corp., 9.375%, 3/15/19 455,312 --------------- $ 1,159,836 ------------------------------------------------------------------------------------------------------------ Oil & Gas Storage & Transportation -- 1.1% 250,000 Boardwalk Pipelines LP, 4.95%, 12/15/24 $ 242,635 125,000 Buckeye Partners LP, 6.05%, 1/15/18 135,521 200,000 DCP Midstream LLC, 9.75%, 3/15/19 (144A) 226,058 250,000 5.85 DCP Midstream LLC, Floating Rate Note, 5/21/43 (144A) 188,750 250,000 Energy Transfer Partners LP, 2.5%, 6/15/18 250,367 250,000 Enterprise Products Operating LLC, 2.55%, 10/15/19 250,658 200,000 Kinder Morgan, Inc., Delaware, 3.05%, 12/1/19 198,341 250,000 Plains All American Pipeline LP, 4.9%, 2/15/45 237,188 425,000 Questar Pipeline Co., 5.83%, 2/1/18 465,335 200,000 Spectra Energy Capital LLC, 6.75%, 7/15/18 223,217 200,000 The Williams Companies, Inc., 5.75%, 6/24/44 175,167 242,000 The Williams Companies, Inc., 7.75%, 6/15/31 265,316 100,000 TransCanada PipeLines, Ltd., 1.875%, 1/12/18 100,506 200,000 6.35 TransCanada PipeLines, Ltd., Floating Rate Note, 5/15/67 185,750 --------------- $ 3,144,809 ------------------------------------------------------------------------------------------------------------ Coal & Consumable Fuels -- 0.1% 250,000 Corp Nacional del Cobre de Chile, 5.625%, 10/18/43 (144A) $ 264,888 ------------------------------------------------------------------------------------------------------------ Other Diversified Financial Services -- 0.1% 250,000 Sinopec Group Overseas Development 2014, Ltd., 4.375%, 4/10/24 (144A) $ 261,978 --------------- Total Energy $ 7,534,356 ------------------------------------------------------------------------------------------------------------ MATERIALS -- 1.0% Fertilizers & Agricultural Chemicals -- 0.2% 250,000 Agrium, Inc., 4.125%, 3/15/35 $ 228,704 250,000 FMC Corp., 4.1%, 2/1/24 256,101 200,000 Monsanto Co., 1.15%, 6/30/17 198,729 --------------- $ 683,534 ------------------------------------------------------------------------------------------------------------ Industrial Gases -- 0.1% 250,000 Praxair Inc., 2.65%, 2/5/25 $ 239,739 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 30 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Specialty Chemicals -- 0.1% 200,000 Cytec Industries, Inc., 3.5%, 4/1/23 $ 200,750 100,000 The Valspar Corp., 3.3%, 2/1/25 97,188 --------------- $ 297,938 ------------------------------------------------------------------------------------------------------------ Construction Materials -- 0.1% 125,000 Holcim US Finance Sarl & Cie SCS, 6.0%, 12/30/19 (144A) $ 141,661 ------------------------------------------------------------------------------------------------------------ Diversified Metals & Mining -- 0.1% 350,000 Gold Fields Orogen Holdings BVI, Ltd., 4.875%, 10/7/20 (144A) $ 301,875 ------------------------------------------------------------------------------------------------------------ Steel -- 0.2% 200,000 Glencore Funding LLC, 4.125%, 5/30/23 (144A) $ 189,172 250,000 Reliance Steel & Aluminum Co., 4.5%, 4/15/23 248,967 150,000 Worthington Industries, Inc., 4.55%, 4/15/26 153,783 --------------- $ 591,922 ------------------------------------------------------------------------------------------------------------ Paper Products -- 0.2% 250,000 International Paper Co., 3.8%, 1/15/26 $ 243,855 250,000 International Paper Co., 6.0%, 11/15/41 271,910 --------------- $ 515,765 --------------- Total Materials $ 2,772,434 ------------------------------------------------------------------------------------------------------------ CAPITAL GOODS -- 0.7% Aerospace & Defense -- 0.2% 200,000 Rockwell Collins, Inc., 3.7%, 12/15/23 $ 208,735 250,000 United Technologies Corp., 1.778%, 5/4/18 (Step) 250,240 --------------- $ 458,975 ------------------------------------------------------------------------------------------------------------ Building Products -- 0.1% 250,000 Masco Corp., 4.45%, 4/1/25 $ 250,625 175,000 5.75 Stanley Black & Decker, Inc., Floating Rate Note, 12/15/53 187,469 --------------- $ 438,094 ------------------------------------------------------------------------------------------------------------ Industrial Conglomerates -- 0.1% 200,000 3M Co., 1.625%, 6/15/19 $ 200,507 ------------------------------------------------------------------------------------------------------------ Construction & Farm Machinery & Heavy Trucks -- 0.2% 250,000 Cummins, Inc., 5.65%, 3/1/98 $ 271,450 130,000 Cummins, Inc., 6.75%, 2/15/27 161,349 250,000 Wabtec Corp., Delaware, 4.375%, 8/15/23 261,954 --------------- $ 694,753 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 31 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Industrial Machinery -- 0.1% 200,000 CNH Industrial Capital LLC, 3.375%, 7/15/19 $ 196,750 51,000 Valmont Industries, Inc., 6.625%, 4/20/20 58,511 --------------- $ 255,261 --------------- Total Capital Goods $ 2,047,590 ------------------------------------------------------------------------------------------------------------ COMMERCIAL SERVICES & SUPPLIES -- 0.1% Environmental & Facilities Services -- 0.0%+ 200,000 Waste Management, Inc., 3.125%, 3/1/25 $ 193,755 ------------------------------------------------------------------------------------------------------------ Research & Consulting Services -- 0.1% 225,000 Verisk Analytics, Inc., 5.5%, 6/15/45 $ 224,866 --------------- Total Commercial Services & Supplies $ 418,621 ------------------------------------------------------------------------------------------------------------ TRANSPORTATION -- 0.3% Airlines -- 0.1% 139,269 Air Canada 2013-1 Class A Pass Through Trust, 4.125%, 5/15/25 (144A) $ 140,661 250,000 Air Canada 2015-1 Class A Pass Through Trust, 3.6%, 3/15/27 (144A) 242,550 1,996 Continental Airlines 1998-1 Class A Pass Through Trust, 6.648%, 9/15/17 2,080 63,064 Delta Air Lines 2010-2 Class A Pass Through Trust, 4.95%, 5/23/19 66,924 --------------- $ 452,215 ------------------------------------------------------------------------------------------------------------ Railroads -- 0.1% 150,000 Burlington Northern Santa Fe LLC, 5.15%, 9/1/43 $ 164,058 ------------------------------------------------------------------------------------------------------------ Highways & Railtracks -- 0.1% 300,000 ERAC USA Finance LLC, 4.5%, 2/15/45 (144A) $ 275,599 --------------- Total Transportation $ 891,872 ------------------------------------------------------------------------------------------------------------ AUTOMOBILES & COMPONENTS -- 0.2% Auto Parts & Equipment -- 0.1% 145,000 Delphi Corp., 4.15%, 3/15/24 $ 149,937 250,000 Johnson Controls, Inc., 1.4%, 11/2/17 248,678 --------------- $ 398,615 ------------------------------------------------------------------------------------------------------------ Automobile Manufacturers -- 0.1% 250,000 Ford Motor Credit Co., LLC, 2.875%, 10/1/18 $ 253,662 --------------- Total Automobiles & Components $ 652,277 ------------------------------------------------------------------------------------------------------------ CONSUMER DURABLES & APPAREL -- 0.1% Homebuilding -- 0.1% 200,000 DR Horton, Inc., 4.0%, 2/15/20 $ 204,000 --------------- Total Consumer Durables & Apparel $ 204,000 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 32 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ CONSUMER SERVICES -- 0.3% Hotels, Resorts & Cruise Lines -- 0.1% 250,000 Marriott International, Inc., 3.125%, 10/15/21 $ 252,546 120,000 Marriott International, Inc., 3.375%, 10/15/20 123,799 --------------- $ 376,345 ------------------------------------------------------------------------------------------------------------ Restaurants -- 0.1% 140,000 Starbucks Corp., 0.875%, 12/5/16 $ 140,046 ------------------------------------------------------------------------------------------------------------ Education Services -- 0.1% 250,000 Colby College, 4.25%, 7/1/55 $ 228,863 --------------- Total Consumer Services $ 745,254 ------------------------------------------------------------------------------------------------------------ MEDIA -- 0.6% Broadcasting -- 0.3% 512,000 21st Century Fox America, Inc., 7.3%, 4/30/28 $ 640,247 200,000 CBS Corp., 4.3%, 2/15/21 210,577 --------------- $ 850,824 ------------------------------------------------------------------------------------------------------------ Cable & Satellite -- 0.1% 250,000 CCO Safari II LLC, 6.384%, 10/23/35 (144A) $ 255,570 125,000 Sky Plc, 6.1%, 2/15/18 (144A) 137,131 --------------- $ 392,701 ------------------------------------------------------------------------------------------------------------ Movies & Entertainment -- 0.1% 250,000 The Met, 3.4%, 7/1/45 $ 225,590 ------------------------------------------------------------------------------------------------------------ Publishing -- 0.1% 95,000 Thomson Reuters Corp., 0.875%, 5/23/16 $ 94,873 250,000 Thomson Reuters Corp., 1.3%, 2/23/17 249,684 --------------- $ 344,557 --------------- Total Media $ 1,813,672 ------------------------------------------------------------------------------------------------------------ RETAILING -- 0.3% Catalog Retail -- 0.1% 225,000 QVC, Inc., 4.45%, 2/15/25 $ 217,556 ------------------------------------------------------------------------------------------------------------ Apparel Retail -- 0.1% 250,000 The TJX Companies, Inc., 2.75%, 6/15/21 $ 253,471 ------------------------------------------------------------------------------------------------------------ Home Improvement Retail -- 0.1% 250,000 The Home Depot, Inc., 2.625%, 6/1/22 $ 247,240 --------------- Total Retailing $ 718,267 ------------------------------------------------------------------------------------------------------------ FOOD & STAPLES RETAILING -- 0.2% Drug Retail -- 0.2% 250,000 CVS Health Corp., 3.5%, 7/20/22 $ 255,344 161,181 CVS Pass-Through Trust, 5.298%, 1/11/27 (144A) 174,752 The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 33 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Drug Retail -- (continued) 110,499 CVS Pass-Through Trust, 5.773%, 1/10/33 (144A) $ 125,167 --------------- $ 555,263 --------------- Total Food & Staples Retailing $ 555,263 ------------------------------------------------------------------------------------------------------------ FOOD, BEVERAGE & TOBACCO -- 0.3% Brewers -- 0.0%+ 55,000 Anheuser-Busch InBev Worldwide, Inc., 7.75%, 1/15/19 $ 65,057 ------------------------------------------------------------------------------------------------------------ Agricultural Products -- 0.2% 410,000 Viterra, Inc., 5.95%, 8/1/20 (144A) $ 445,119 ------------------------------------------------------------------------------------------------------------ Packaged Foods & Meats -- 0.1% 250,000 Kraft Foods Group, Inc., 3.5%, 6/6/22 $ 253,504 ------------------------------------------------------------------------------------------------------------ Tobacco -- 0.0%+ 50,000 Philip Morris International, Inc., 3.25%, 11/10/24 $ 49,675 --------------- Total Food, Beverage & Tobacco $ 813,355 ------------------------------------------------------------------------------------------------------------ HOUSEHOLD & PERSONAL PRODUCTS -- 0.1% Household Products -- 0.1% 200,000 Kimberly-Clark de Mexico SAB de CV, 3.8%, 4/8/24 (144A) $ 202,894 200,000 Reckitt Benckiser Treasury Services Plc, 2.125%, 9/21/18 (144A) 200,296 --------------- $ 403,190 --------------- Total Household & Personal Products $ 403,190 ------------------------------------------------------------------------------------------------------------ HEALTH CARE EQUIPMENT & SERVICES -- 0.3% Health Care Equipment -- 0.2% 250,000 Becton Dickinson and Co., 1.8%, 12/15/17 $ 249,024 150,000 Boston Scientific Corp., 2.65%, 10/1/18 152,157 --------------- $ 401,181 ------------------------------------------------------------------------------------------------------------ Managed Health Care -- 0.1% 100,000 Anthem, Inc., 3.3%, 1/15/23 $ 96,762 250,000 UnitedHealth Group, Inc., 3.35%, 7/15/22 255,096 --------------- $ 351,858 --------------- Total Health Care Equipment & Services $ 753,039 ------------------------------------------------------------------------------------------------------------ BANKS -- 1.4% Diversified Banks -- 1.0% 300,000 Bank of America Corp., 4.1%, 7/24/23 $ 310,079 250,000 Citigroup, Inc., 2.55%, 4/8/19 252,187 200,000 Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Netherlands, 3.875%, 2/8/22 209,272 300,000 Export-Import Bank of Korea, 2.875%, 9/17/18 308,562 The accompanying notes are an integral part of these financial statements. 34 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Diversified Banks -- (continued) 250,000 First Tennessee Bank NA, 2.95%, 12/1/19 $ 250,820 200,000 HSBC Holdings Plc, 4.875%, 1/14/22 222,138 250,000 Intesa Sanpaolo S.p.A., 3.125%, 1/15/16 251,938 200,000 Intesa Sanpaolo S.p.A., 6.5%, 2/24/21 (144A) 230,745 250,000 Macquarie Bank, Ltd., 6.625%, 4/7/21 (144A) 284,372 250,000 Nordea Bank AB, 4.25%, 9/21/22 (144A) 257,538 150,000 Royal Bank of Canada, 1.45%, 9/9/16 151,080 200,000 Wells Fargo & Co., 4.125%, 8/15/23 206,847 --------------- $ 2,935,578 ------------------------------------------------------------------------------------------------------------ Regional Banks -- 0.4% 138,000 BB&T Corp., 1.6%, 8/15/17 $ 138,507 250,000 HSBC Bank USA NA New York NY, 6.0%, 8/9/17 271,146 300,000 KeyBank NA Cleveland Ohio, 2.25%, 3/16/20 297,867 300,000 SunTrust Bank, 1.35%, 2/15/17 299,921 210,000 6.75 The PNC Financial Services Group, Inc., Floating Rate Note (Perpetual) 233,100 --------------- $ 1,240,541 --------------- Total Banks $ 4,176,119 ------------------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 2.1% Other Diversified Financial Services -- 0.8% 290,000 Alterra Finance LLC, 6.25%, 9/30/20 $ 332,185 400,000 Carlyle Holdings II Finance LLC, 5.625%, 3/30/43 (144A) 426,601 250,000 General Electric Capital Corp., 5.625%, 9/15/17 272,260 420,000 General Electric Capital Corp., 6.75%, 3/15/32 557,317 650,000 6.75 JPMorgan Chase & Co., Floating Rate Note, 1/29/49 688,594 --------------- $ 2,276,957 ------------------------------------------------------------------------------------------------------------ Specialized Finance -- 0.3% 175,000 Aviation Capital Group Corp., 6.75%, 4/6/21 (144A) $ 199,104 200,000 BM&FBovespa SA -- Bolsa de Valores Mercadorias e Futuros, 5.5%, 7/16/20 (144A) 211,500 250,000 Private Export Funding Corp., 2.3%, 9/15/20 252,390 250,000 USAA Capital Corp., 2.45%, 8/1/20 (144A) 251,539 --------------- $ 914,533 ------------------------------------------------------------------------------------------------------------ Consumer Finance -- 0.5% 250,000 Ally Financial, Inc., 3.6%, 5/21/18 $ 251,838 250,000 American Express Co., 1.55%, 5/22/18 248,558 360,000 Capital One Bank USA NA, 8.8%, 7/15/19 435,522 300,000 Capital One Financial Corp., 3.75%, 4/24/24 296,656 The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 35 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Consumer Finance -- (continued) 250,000 Capital One NA, 1.65%, 2/5/18 $ 248,052 150,000 Toyota Motor Credit Corp., 0.75%, 3/3/17 (Step) 149,800 --------------- $ 1,630,426 ------------------------------------------------------------------------------------------------------------ Asset Management & Custody Banks -- 0.3% 300,000 KKR Group Finance Co., II LLC, 5.5%, 2/1/43 (144A) $ 308,126 250,000 Neuberger Berman Group LLC, 4.875%, 4/15/45 (144A) 228,955 250,000 4.50 The Bank of New York Mellon Corp., Floating Rate Note (Perpetual) 231,250 --------------- $ 768,331 ------------------------------------------------------------------------------------------------------------ Investment Banking & Brokerage -- 0.2% 75,000 KKR Group Finance Co., III LLC, 5.125%, 6/1/44 (144A) $ 73,721 250,000 Morgan Stanley, 2.65%, 1/27/20 250,921 250,000 Morgan Stanley, 4.1%, 5/22/23 253,808 --------------- $ 578,450 --------------- Total Diversified Financials $ 6,168,697 ------------------------------------------------------------------------------------------------------------ INSURANCE -- 2.5% Life & Health Insurance -- 0.3% 220,000 Principal Financial Group, Inc., 3.3%, 9/15/22 $ 219,949 335,000 Protective Life Corp., 7.375%, 10/15/19 396,904 200,000 5.62 Prudential Financial, Inc., Floating Rate Note, 6/15/43 207,710 150,000 5.88 Prudential Financial, Inc., Floating Rate Note, 9/15/42 158,625 --------------- $ 983,188 ------------------------------------------------------------------------------------------------------------ Multi-line Insurance -- 0.3% 200,000 AIG, 3.875%, 1/15/35 $ 181,684 250,000 AXA SA, 8.6%, 12/15/30 335,625 200,000 New York Life Global Funding, 1.125%, 3/1/17 (144A) 200,271 200,000 New York Life Global Funding, 1.45%, 12/15/17 (144A) 200,185 --------------- $ 917,765 ------------------------------------------------------------------------------------------------------------ Property & Casualty Insurance -- 0.2% 200,000 OneBeacon US Holdings, Inc., 4.6%, 11/9/22 $ 206,235 250,000 The Hanover Insurance Group, Inc., 6.375%, 6/15/21 287,248 --------------- $ 493,483 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 36 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Reinsurance -- 1.7% 250,000 0.00 Acorn Re, Ltd., Floating Rate Note, 7/17/18 (Cat Bond) (144A) $ 250,550 250,000 5.91 Alamo Re, Ltd., Floating Rate Note, 6/7/18 (Cat Bond) (144A) 249,475 200,000 6.38 Aquarius + Investments Plc for Swiss Reinsurance Co., Ltd., Floating Rate Note, 9/1/24 208,579 250,000 5.26 Caelus Re, Ltd., Floating Rate Note, 3/7/16 (Cat Bond) (144A) 245,725 250,000 0.00 Compass Re II, Ltd., Floating Rate Note, 12/8/15 (Cat Bond) 239,450 250,000 3.76 East Lane Re VI, Ltd., Floating Rate Note, 3/13/20 (Cat Bond) (144A) 247,575 274,050 Exeter Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/7/16 (d) 278,736 250,000 3.76 Kilimanjaro Re, Ltd., Floating Rate Note, 11/25/19 (Cat Bond) (144A) 246,000 250,000 4.77 Kilimanjaro Re, Ltd., Floating Rate Note, 4/30/18 (Cat Bond) (144A) 244,200 250,000 Kingsbarns 2015 Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 12/18/15 (d) 235,082 250,000 3.97 Longpoint Re, Ltd. III, Floating Rate Note, 5/18/16 (Cat Bond) (144A) 250,375 100,000 Lorenzo Re, Ltd., Variable Rate Notes, 3/31/18 (d) 103,190 222,333 Muirfield Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/12/16 (d) 227,425 250,000 5.75 Queen Street X Re, Ltd., Floating Rate Note, 6/8/18 (Cat Bond) (144A) 245,075 250,000 5.30 Residential Reinsurance 2013, Ltd., Floating Rate Note, 12/6/17 (Cat Bond) (144A) 243,025 250,000 3.02 Sanders Re, Ltd., Floating Rate Note, 5/25/18 (Cat Bond) (144A) 242,500 250,000 4.02 Sanders Re, Ltd., Floating Rate Note, 5/5/17 (Cat Bond) (144A) 245,925 250,000 3.91 Sanders Re, Ltd., Floating Rate Note, 6/7/17 (Cat Bond) (144A) 247,125 250,000 Sector Re V, Ltd., Variable Rate Notes, 3/1/20 (144A) (d) 252,275 229,417 Troon Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/12/16 (d) 233,202 --------------- $ 4,735,489 --------------- Total Insurance $ 7,129,925 ------------------------------------------------------------------------------------------------------------ REAL ESTATE -- 0.4% Diversified REIT -- 0.3% 200,000 DCT Industrial Operating Partnership LP, 4.5%, 10/15/23 $ 204,920 300,000 Duke Realty LP, 3.75%, 12/1/24 294,580 250,000 Essex Portfolio LP, 3.5%, 4/1/25 241,808 --------------- $ 741,308 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 37 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Office REIT -- 0.1% 110,000 Alexandria Real Estate Equities, Inc., 4.6%, 4/1/22 $ 116,631 250,000 Highwoods Realty LP, 3.625%, 1/15/23 248,732 --------------- $ 365,363 ------------------------------------------------------------------------------------------------------------ Specialized REIT -- 0.0%+ 50,000 CubeSmart LP, 4.8%, 7/15/22 $ 54,074 --------------- Total Real Estate $ 1,160,745 ------------------------------------------------------------------------------------------------------------ SOFTWARE & SERVICES -- 0.1% Data Processing & Outsourced Services -- 0.0%+ 44,000 First Data Corp., 8.25%, 1/15/21 (144A) $ 46,585 ------------------------------------------------------------------------------------------------------------ Systems Software -- 0.1% 250,000 Oracle Corp., 2.5%, 5/15/22 $ 242,947 --------------- Total Software & Services $ 289,532 ------------------------------------------------------------------------------------------------------------ TECHNOLOGY HARDWARE & EQUIPMENT -- 0.3% Communications Equipment -- 0.1% 150,000 Cisco Systems, Inc., 2.9%, 3/4/21 $ 153,483 250,000 Cisco Systems, Inc., 3.5%, 6/15/25 253,982 --------------- $ 407,465 ------------------------------------------------------------------------------------------------------------ Computer Hardware Storage & Peripherals -- 0.1% 250,000 Seagate HDD Cayman, 4.875%, 6/1/27 (144A) $ 240,491 ------------------------------------------------------------------------------------------------------------ Electronic Manufacturing Services -- 0.1% 250,000 Flextronics International, Ltd., 4.75%, 6/15/25 (144A) $ 244,062 --------------- Total Technology Hardware & Equipment $ 892,018 ------------------------------------------------------------------------------------------------------------ SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.4% Semiconductors -- 0.4% 250,000 Altera Corp., 2.5%, 11/15/18 $ 254,291 250,000 Intel Corp., 4.9%, 7/29/45 256,775 175,000 Micron Semiconductor Asia Pte, Ltd., 1.258%, 1/15/19 174,596 200,000 Texas Instruments, Inc., 0.875%, 3/12/17 200,278 150,000 Xilinx, Inc., 3.0%, 3/15/21 152,561 --------------- $ 1,038,501 --------------- Total Semiconductors & Semiconductor Equipment $ 1,038,501 ------------------------------------------------------------------------------------------------------------ TELECOMMUNICATION SERVICES -- 0.8% Integrated Telecommunication Services -- 0.5% 250,000 AT&T, Inc., 4.75%, 5/15/46 $ 230,581 350,000 Telefonica Emisiones SAU, 5.462%, 2/16/21 390,208 300,000 Telefonica Emisiones SAU, 6.221%, 7/3/17 324,659 195,000 Verizon Communications, Inc., 5.012%, 8/21/54 180,251 The accompanying notes are an integral part of these financial statements. 38 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Integrated Telecommunication Services -- (continued) 196,000 Verizon Communications, Inc., 6.55%, 9/15/43 $ 231,560 --------------- $ 1,357,259 ------------------------------------------------------------------------------------------------------------ Wireless Telecommunication Services -- 0.3% 250,000 Crown Castle Towers LLC, 3.222%, 5/15/22 (144A) $ 247,500 240,000 Crown Castle Towers LLC, 4.883%, 8/15/20 (144A) 257,836 250,000 Crown Castle Towers LLC, 5.495%, 1/15/17 (144A) 257,322 140,000 Crown Castle Towers LLC, 6.113%, 1/15/20 (144A) 156,064 100,000 WCP Issuer LLC, 6.657%, 8/15/20 (144A) 104,975 --------------- $ 1,023,697 --------------- Total Telecommunication Services $ 2,380,956 ------------------------------------------------------------------------------------------------------------ UTILITIES -- 1.5% Electric Utilities -- 1.2% 225,000 Commonwealth Edison Co., 6.15%, 9/15/17 $ 247,057 100,000 Electricite de France SA, 6.0%, 1/22/14 (144A) 111,853 250,000 5.25 Electricite de France SA, Floating Rate Note (Perpetual) (144A) 256,250 270,000 Enel Finance International NV, 5.125%, 10/7/19 (144A) 297,804 200,000 8.13 Enel S.p.A., Floating Rate Note, 9/24/73 (144A) 234,450 250,000 Exelon Corp., 2.85%, 6/15/20 251,146 76,781 FPL Energy American Wind LLC, 6.639%, 6/20/23 (144A) 78,824 13,318 FPL Energy Wind Funding LLC, 6.876%, 6/27/17 (144A) 13,052 560,000 Iberdrola International BV, 6.75%, 7/15/36 697,590 200,000 Israel Electric Corp., Ltd., 6.7%, 2/10/17 (144A) 213,100 200,000 Israel Electric Corp., Ltd., 7.25%, 1/15/19 (144A) 227,400 125,000 Nevada Power Co., 6.5%, 8/1/18 142,156 64,343 Orcal Geothermal, Inc., 6.21%, 12/30/20 (144A) 66,756 275,000 Public Service Co. of New Mexico, 7.95%, 5/15/18 319,092 250,000 Southwestern Electric Power Co., 3.9%, 4/1/45 222,864 --------------- $ 3,379,394 ------------------------------------------------------------------------------------------------------------ Gas Utilities -- 0.1% 150,000 DCP Midstream Operating LP, 3.25%, 10/1/15 $ 149,625 250,000 Southern California Gas Co., 5.125%, 11/15/40 288,790 --------------- $ 438,415 ------------------------------------------------------------------------------------------------------------ Multi-Utilities -- 0.2% 415,000 New York State Electric & Gas Corp., 6.15%, 12/15/17 (144A) $ 456,350 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 39 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Independent Power Producers & Energy Traders -- 0.0%+ 78,188 Alta Wind Holdings LLC, 7.0%, 6/30/35 (144A) $ 91,674 --------------- Total Utilities $ 4,365,833 ------------------------------------------------------------------------------------------------------------ TOTAL CORPORATE BONDS (Cost $46,502,336) $ 47,925,516 ------------------------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 11.1% 1,717,400 Fannie Mae, 3.5%, 7/1/43 $ 1,785,119 4,191,002 Fannie Mae, 4.0%, 9/1/40-7/1/44 4,474,128 2,136,737 Fannie Mae, 4.5%, 11/1/20-12/1/43 2,321,740 100,328 Fannie Mae, 5.0%, 12/1/17-6/1/37 108,908 692,306 Fannie Mae, 5.5%, 9/1/17-5/1/38 774,560 121,968 Fannie Mae, 6.0%, 1/1/29-12/1/37 138,900 114,521 Fannie Mae, 6.5%, 4/1/29-10/1/32 132,973 20,101 Fannie Mae, 7.0%, 1/1/36 23,481 9,349 Fannie Mae, 8.0%, 2/1/29-5/1/31 11,025 6,449,231 Federal Home Loan Mortgage Corp., 3.5%, 11/1/28-6/1/45 6,702,354 6,947,896 Federal Home Loan Mortgage Corp., 4.0%, 2/1/40-12/1/44 7,386,727 1,034,232 Federal Home Loan Mortgage Corp., 4.5%, 8/1/34-5/1/41 1,127,586 152,103 Federal Home Loan Mortgage Corp., 5.0%, 11/1/34-8/1/37 167,984 42,753 Federal Home Loan Mortgage Corp., 5.5%, 10/1/16-11/1/34 47,368 119,988 Federal Home Loan Mortgage Corp., 6.0%, 4/1/33-10/1/38 135,493 13,368 Federal Home Loan Mortgage Corp., 6.5%, 10/1/33 15,804 75,042 Federal Home Loan Mortgage Corp., 7.0%, 10/1/46 85,321 109,734 2.02 Federal Home Loan Mortgage Corp., Floating Rate Note, 11/1/35 113,044 1,034,369 Government National Mortgage Association I, 4.0%, 9/15/41 1,101,702 92,040 Government National Mortgage Association I, 5.0%, 2/15/18 95,630 49,112 Government National Mortgage Association I, 5.5%, 8/15/33-9/15/33 56,112 202,624 Government National Mortgage Association I, 6.0%, 10/15/33-9/15/38 232,203 180,238 Government National Mortgage Association I, 6.5%, 10/15/28-5/15/33 208,183 3,132 Government National Mortgage Association I, 7.0%, 4/15/28-8/15/28 3,564 The accompanying notes are an integral part of these financial statements. 40 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 3,337 Government National Mortgage Association I, 8.0%, 2/15/30 $ 3,383 115,215 Government National Mortgage Association II, 5.5%, 2/20/34-4/20/35 129,135 78,820 Government National Mortgage Association II, 6.5%, 11/20/28 92,913 3,094 Government National Mortgage Association II, 7.5%, 9/20/29 3,626 750,000 U.S. Treasury Bonds, 3.125%, 2/15/43 777,539 370,000 U.S. Treasury Bonds, 5.25%, 11/15/28 491,377 675,000 U.S. Treasury Bonds, 5.375%, 2/15/31 927,967 1,130,000 0.12 U.S. Treasury Notes, Floating Rate Note, 7/31/16 1,130,228 250,000 U.S. Treasury Notes, 2.25%, 11/15/24 251,230 750,000 U.S. Treasury Notes, 2.625%, 11/15/20 786,328 165,000 U.S. Treasury Notes, 3.125%, 5/15/19 176,318 115,000 U.S. Treasury Notes, 3.375%, 11/15/19 124,407 --------------- $ 32,144,360 ------------------------------------------------------------------------------------------------------------ TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $31,585,758) $ 32,144,360 ------------------------------------------------------------------------------------------------------------ FOREIGN GOVERNMENT BONDS -- 0.1% 200,000 Commonwealth of the Bahamas, 5.75%, 1/16/24 (144A) $ 216,500 EURO 75,000 Italy Buoni Poliennali Del Tesoro, 4.75%, 8/1/23 (144A) 102,037 --------------- $ 318,537 ------------------------------------------------------------------------------------------------------------ TOTAL FOREIGN GOVERNMENT BONDS (Cost $297,577) $ 318,537 ------------------------------------------------------------------------------------------------------------ MUNICIPAL BONDS -- 1.4% Municipal Airport -- 0.2% 250,000 Indianapolis Airport Authority, 5.1%, 1/15/17 $ 264,855 400,000 Massachusetts Port Authority, 5.0%, 7/1/16 416,064 --------------- $ 680,919 ------------------------------------------------------------------------------------------------------------ Municipal Education -- 0.0%+ 100,000 Massachusetts Development Finance Agency, 4.844%, 9/1/43 $ 109,195 ------------------------------------------------------------------------------------------------------------ Municipal General -- 0.2% 100,000 Central Texas Regional Mobility Authority, 1/1/25 (c) $ 67,673 200,000 City of Raleigh North Carolina, 4.0%, 10/1/32 210,180 200,000 JobsOhio Beverage System, 3.985%, 1/1/29 208,624 --------------- $ 486,477 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 41 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ Higher Municipal Education -- 0.6% 100,000 Massachusetts Development Finance Agency, Northeastern University-Series A, 5.0%, 3/1/39 $ 111,271 150,000 Massachusetts Development Finance Agency, Williams College-Series P, 5.0%, 7/1/43 168,747 250,000 Massachusetts Institute of Technology, 5.6%, 7/1/11 313,866 300,000 The Board of Trustees of The Leland Stanford Junior University, 4.75%, 5/1/19 334,214 250,000 The George Washington University, 1.827%, 9/15/17 253,224 137,000 The George Washington University, 3.485%, 9/15/22 140,310 200,000 University of California, 4.062%, 5/15/33 206,116 100,000 Virginia College Building Authority, 4.0%, 9/1/26 109,024 --------------- $ 1,636,772 ------------------------------------------------------------------------------------------------------------ Municipal Medical -- 0.1% 100,000 Health & Educational Facilities Authority of the State of Missouri, 3.685%, 2/15/47 $ 98,416 150,000 Massachusetts Development Finance Agency, 5.0%, 7/1/39 164,784 --------------- $ 263,200 ------------------------------------------------------------------------------------------------------------ Municipal Power -- 0.1% 250,000 Energy Northwest, 5.0%, 7/1/35 $ 280,352 ------------------------------------------------------------------------------------------------------------ Municipal Transportation -- 0.1% 180,000 Maine Turnpike Authority, 5.0%, 7/1/42 $ 200,898 ------------------------------------------------------------------------------------------------------------ Municipal Water -- 0.0%+ 150,000 County of King Washington Sewer Revenue, 4.25%, 1/1/36 $ 160,629 ------------------------------------------------------------------------------------------------------------ Municipal Obligation -- 0.1% 250,000 City of Irving Texas, 4.0%, 9/15/27 $ 271,230 ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (Cost $3,897,010) $ 4,089,672 ------------------------------------------------------------------------------------------------------------ SENIOR FLOATING RATE LOAN INTERESTS -- 1.0%** CAPITAL GOODS -- 0.2% Aerospace & Defense -- 0.1% 93,818 4.00 B/E Aerospace, Inc., Term Loan, 11/19/21 $ 94,786 271,750 3.25 Wesco Aircraft Hardare Corp., Tranche B Term Loan (First Lien), 2/24/21 271,240 --------------- $ 366,026 ------------------------------------------------------------------------------------------------------------ Industrial Machinery -- 0.1% 248,750 4.00 Mueller Water Products, Inc., Initial Loan, 11/25/21 $ 250,272 --------------- Total Capital Goods $ 616,298 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 42 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ AUTOMOBILES & COMPONENTS -- 0.2% Automobile Manufacturers -- 0.2% 480,000 3.50 Chrysler Group LLC, Term Loan B, 5/24/17 $ 480,480 --------------- Total Automobiles & Components $ 480,480 ------------------------------------------------------------------------------------------------------------ CONSUMER DURABLES & APPAREL -- 0.0%+ Apparel, Accessories & Luxury Goods -- 0.0%+ 63,744 3.25 PVH Corp., Tranche B Term Loan, 12/19/19 $ 64,113 --------------- Total Consumer Durables & Apparel $ 64,113 ------------------------------------------------------------------------------------------------------------ MEDIA -- 0.1% Broadcasting -- 0.0%+ 73,683 3.00 Sinclair Television Group, Inc., New Tranche B Term Loan, 4/19/20 $ 73,718 ------------------------------------------------------------------------------------------------------------ Movies & Entertainment -- 0.1% 131,526 3.25 Kasima LLC, Term Loan, 5/17/21 $ 131,471 --------------- Total Media $ 205,189 ------------------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 0.0%+ Other Diversified Financial Services -- 0.0%+ 150,000 3.50 Delos Finance SARL, Tranche B Term Loan, 2/27/21 $ 150,415 --------------- Total Diversified Financials $ 150,415 ------------------------------------------------------------------------------------------------------------ TECHNOLOGY HARDWARE & EQUIPMENT -- 0.1% Communications Equipment -- 0.1% 180,482 3.25 Commscope, Inc., Tranche 4 Term Loan, 1/14/18 $ 180,875 --------------- Total Technology Hardware & Equipment $ 180,875 ------------------------------------------------------------------------------------------------------------ SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.0%+ Semiconductors -- 0.0%+ 111,932 3.75 Avago Technologies Ltd., Tranche B Term Loan (First Lien), 4/16/21 $ 112,244 --------------- Total Semiconductors & Semiconductor Equipment $ 112,244 ------------------------------------------------------------------------------------------------------------ TELECOMMUNICATION SERVICES -- 0.2% Integrated Telecommunication Services -- 0.1% 149,625 4.00 GCI Holdings, Inc., 1st Lien Term Loan, 2/2/22 $ 150,311 ------------------------------------------------------------------------------------------------------------ Wireless Telecommunication Services -- 0.1% 149,625 4.75 GCI Holdings, Inc., Tranche B Term Loan (First Lien), 12/22/21 $ 150,560 --------------- Total Telecommunication Services $ 300,871 ------------------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 43 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------------ UTILITIES -- 0.2% Electric Utilities -- 0.2% 329,741 4.75 Atlantic Power LP, Term Loan, 2/20/21 $ 331,183 221,618 3.25 Calpine Construction Finance Co. LP, Term B-2 Loan, 1/3/22 219,956 --------------- $ 551,139 --------------- Total Utilities $ 551,139 ------------------------------------------------------------------------------------------------------------ TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $2,795,857) $ 2,661,624 ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENT IN SECURITIES -- 98.4% (Cost $247,234,847) (a) $ 284,501,494 ------------------------------------------------------------------------------------------------------------ OTHER ASSETS & LIABILITIES -- 1.6% $ 4,813,825 ------------------------------------------------------------------------------------------------------------ TOTAL NET ASSETS -- 100.0% $ 289,315,319 ============================================================================================================ * Non-income producing security. + Amount rounds to less than 0.1%. (A.D.R.) American Depositary Receipts. (Perpetual) Security with no stated maturity date. (Step) Bond issued with an initial coupon rate which converts to a higher rate at a later date. REIT Real Estate Investment Trust. REMICS Real Estate Mortgage Investment Conduits. (Cat Bond) Catastrophe or event linked bond. At July 31, 2015 the value of these securities amounted to $3,197,000 or 1.1% of total net assets. See Notes to Financial Statements -- 1H. ** Senior floating rate loan interests in which the Fund invests generally pay interest at rates that are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the lending rate offered by one or more major European banks, such as LIBOR (London InterBank Offered Rate), (ii) the prime rate offered by one or more major U.S. banks, (iii) the certificate of deposit or (iv) other base lending rates used by commercial lenders. The rate shown is the coupon rate at period end. (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At July 31, 2015, the value of these securities amounted to $23,564,442 or 8.1% of total net assets. (a) At July 31, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $247,440,727 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $40,347,079 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (3,286,312) ----------- Net unrealized appreciation $37,060,767 =========== (b) Debt obligation with a variable interest rate. Rate shown is rate at period end. (c) Security issued with a zero coupon. Income is earned through accretion of discount. The accompanying notes are an integral part of these financial statements. 44 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 (d) Structured reinsurance investment. At July 31, 2015, the value of these securities amounted to $1,329,910 or 0.5% of total net assets. See Notes To Financial Statements -- Note 1H. Principal amounts are denominated in U.S. Dollars unless otherwise noted: EURO Euro Purchases and sales of securities (excluding temporary cash investments) for the year ended July 31, 2015 aggregated $200,165,779 and $113,473,209, respectively. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.). Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments). Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) are categorized as Level 3. The following is a summary of the inputs used as of July 31, 2015, in valuing the Fund's assets: ------------------------------------------------------------------------------------------------ Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------------------------ Preferred Stocks $ 676,283 $ -- $ -- $ 676,283 Convertible Preferred Stock 834,477 -- -- 834,477 Common Stocks 180,916,333 -- -- 180,916,333 Asset Backed Securities -- 4,684,151 -- 4,684,151 Collateralized Mortgage Obligations -- 10,250,541 -- 10,250,541 Corporate Bonds Insurance Reinsurance -- 3,405,579 1,329,910 4,735,489 All Other Corporate Bonds -- 43,190,027 -- 43,190,027 U.S. Government and Agency Obligations -- 32,144,360 -- 32,144,360 Foreign Government Bonds -- 318,537 -- 318,537 Municipal Bonds -- 4,089,672 -- 4,089,672 Senior Floating Rate Loan Interests -- 2,661,624 -- 2,661,624 ------------------------------------------------------------------------------------------------ Total $182,427,093 $100,744,491 $1,329,910 $284,501,494 ================================================================================================ Other Financial Instruments Net unrealized appreciation on futures contracts $ 3,344 $ -- $ -- $ 3,344 ------------------------------------------------------------------------------------------------ Total Other Financial Instruments $ 3,344 $ -- $ -- $ 3,344 ================================================================================================ During the year ended July 31, 2015, there were no transfers between Levels 1, 2 and 3. The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 45 Schedule of Investments | 7/31/15 (continued) The following is a summary of the fair valuation of certain Fund's assets and liabilities as of July 31, 2015. ---------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ---------------------------------------------------------------------------------------------- Assets: Futures collateral $ -- $16,100 $ -- $16,100 Variation margin for futures contracts 1,563 -- -- 1,563 ---------------------------------------------------------------------------------------------- Total: $1,563 $16,100 $ -- $17,663 ============================================================================================== ---------------------------------------------------------------------------------------------- Corporate Bonds ---------------------------------------------------------------------------------------------- Balance as of 7/31/14 $ -- Realized gain (loss)(1) -- Change in unrealized appreciation (depreciation)(2) 19,028 Purchases 1,310,882 Sales -- Transfers in to Level 3* -- Transfers out of Level 3* -- ---------------------------------------------------------------------------------------------- Balance as of 7/31/15 $1,329,910 ============================================================================================== 1 Realized gain (loss) on these securities is included in the net realized gain (loss) from investments in the Statement of Operations. 2 Unrealized appreciation (depreciation) on these securities is included in the change in unrealized appreciation (depreciation) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. During the year ended July 31, 2015, there were no transfers between Levels 1, 2 and 3. Net change in unrealized appreciation (depreciation) of investments still held as of 7/31/15 $19,028 ------- The accompanying notes are an integral part of these financial statements. 46 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Statement of Assets and Liabilities | 7/31/15 ASSETS: Investment in securities (cost $247,234,847) $ 284,501,494 Cash 2,454,286 Foreign currencies, at value (cost $1,736) 1,681 Futures collateral 16,100 Receivables -- Investment securities sold 1,446,782 Fund shares sold 1,332,618 Dividends 277,287 Interest 713,581 Variation margin for futures contracts 1,563 Net unrealized appreciation on futures contracts 3,344 Other assets 14,709 ------------------------------------------------------------------------------------------- Total assets $ 290,763,445 =========================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 843,269 Fund shares repurchased 446,315 Dividends 859 Trustee fees 617 Due to affiliates 69,431 Accrued expenses 87,635 ------------------------------------------------------------------------------------------- Total liabilities $ 1,448,126 =========================================================================================== NET ASSETS: Paid-in capital $ 247,678,236 Undistributed net investment income 19,725 Accumulated net realized gain on investments, futures contracts and foreign currency transactions 4,347,576 Net unrealized appreciation on investments 37,266,647 Net unrealized appreciation on futures contracts 3,344 Net unrealized depreciation on other assets and liabilities denominated in foreign currencies (209) ------------------------------------------------------------------------------------------- Total net assets $ 289,315,319 =========================================================================================== NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $179,691,499/19,192,525 shares) $ 9.36 Class C (based on $40,470,207/4,352,472 shares) $ 9.30 Class R (based on $139,175/14,871 shares) $ 9.36 Class Y (based on $69,014,438/7,334,533 shares) $ 9.41 MAXIMUM OFFERING PRICE: Class A ($9.36 / 95.5%) $ 9.80 =========================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 47 Statement of Operations For the Year Ended 7/31/15 INVESTMENT INCOME: Dividends $ 4,440,137 Interest 3,433,654 ------------------------------------------------------------------------------------------------------ Total investment income $ 7,873,791 ====================================================================================================== EXPENSES: Management fees $ 1,680,734 Transfer agent fees Class A 163,034 Class B* 4,928 Class C 19,127 Class Y 1,413 Distribution fees Class A 418,104 Class B* 7,653 Class C 323,000 Class R 11 Shareholder communications expense 234,561 Administrative reimbursements 88,545 Custodian fees 38,428 Registration fees 62,299 Professional fees 59,184 Printing expense 42,358 Fees and expenses of nonaffiliated trustees 7,767 Miscellaneous 86,314 ------------------------------------------------------------------------------------------------------ Total operating expenses $ 3,237,460 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (114,209) ------------------------------------------------------------------------------------------------------ Net operating expenses $ 3,123,251 ------------------------------------------------------------------------------------------------------ Net investment income $ 4,750,540 ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, CLASS ACTIONS, FUTURES CONTRACTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $ 9,331,495 Class actions 143,677 Futures contracts 27,124 Other assets and liabilities denominated in foreign currencies (221) $ 9,502,075 ------------------------------------------------------------------------------------------------------ Change in net unrealized appreciation (depreciation) on: Investments $ 1,942,502 Futures contracts 5,805 Other assets and liabilities denominated in foreign currencies (144) $ 1,948,163 ------------------------------------------------------------------------------------------------------ Net gain on investments, futures contracts and foreign currency transactions $11,450,238 ------------------------------------------------------------------------------------------------------ Net increase in net assets resulting from operations $16,200,778 ====================================================================================================== * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. 48 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Statements of Changes in Net Assets ------------------------------------------------------------------------------------------------ Year Ended Year Ended 7/31/15 7/31/14 ------------------------------------------------------------------------------------------------ FROM OPERATIONS: Net investment income $ 4,750,540 $ 4,438,427 Net realized gain on investments, futures contracts and foreign currency transactions 9,502,075 19,752,817 Change in net unrealized appreciation (depreciation) on investments, futures contracts and foreign currency transactions 1,948,163 1,957,242 ------------------------------------------------------------------------------------------------ Net increase in net assets resulting from operations $ 16,200,778 $ 26,148,486 ------------------------------------------------------------------------------------------------ DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.18 and $0.22 per share, respectively) $ (3,247,104) $ (3,241,238) Class B ($0.02 and $0.14 per share, respectively)* (5,579) (51,908) Class C ($0.12 and $0.15 per share, respectively) (410,104) (395,216) Class Y ($0.20 and $0.25 per share, respectively) (1,203,785) (873,038) Net realized gain: Class A ($0.86 and $1.92 per share, respectively) (13,760,167) (24,555,210) Class B ($0.00 and $1.92 per share, respectively)* -- (669,959) Class C ($0.86 and $1.92 per share, respectively) (2,411,099) (5,326,542) Class Y ($0.86 and $1.92 per share, respectively) (4,036,355) (5,681,789) ------------------------------------------------------------------------------------------------ Total distributions to shareowners $ (25,074,193) $ (40,794,900) ------------------------------------------------------------------------------------------------ FROM FUND SHARE TRANSACTIONS: Net proceeds from sale or exchange of shares $ 128,341,390 $ 61,086,610 Reinvestment of distributions 23,695,513 39,241,703 Cost of shares repurchased (67,572,957) (65,171,340) ------------------------------------------------------------------------------------------------ Net increase in net assets resulting from Fund share transactions $ 84,463,946 $ 35,156,973 ------------------------------------------------------------------------------------------------ Net increase in net assets $ 75,590,531 $ 20,510,559 NET ASSETS: Beginning of year $ 213,724,788 $ 193,214,229 ------------------------------------------------------------------------------------------------ End of year $ 289,315,319 $ 213,724,788 ================================================================================================ Undistributed net investment income $ 19,725 $ 68,022 ================================================================================================ * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 49 Statements of Changes in Net Assets (continued) ---------------------------------------------------------------------------------------------------- '15 Shares '15 Amount '14 Shares '14 Amount ---------------------------------------------------------------------------------------------------- Class A Shares sold 5,905,825 $ 56,175,868 2,714,573 $ 26,604,783 Reinvestment of distributions 1,763,705 16,400,748 2,886,844 26,731,682 Less shares repurchased (3,817,875) (36,346,941) (2,961,647) (28,898,918) ---------------------------------------------------------------------------------------------------- Net increase 3,851,655 $ 36,229,675 2,639,770 $ 24,437,547 ==================================================================================================== Class B* Shares exchanged 3,770 $ 36,469 14,897 $ 143,791 Reinvestment of distributions 525 5,167 73,831 675,584 Less shares repurchased (299,353) (2,964,042) (175,664) (1,701,571) ---------------------------------------------------------------------------------------------------- Net decrease (295,058) $ (2,922,406) (86,936) $ (882,196) ==================================================================================================== Class C Shares sold 2,415,816 $ 22,654,909 1,387,081 $ 13,886,541 Reinvestment of distributions 281,939 2,601,914 590,108 5,419,508 Less shares repurchased (787,067) (7,372,667) (2,183,631) (21,049,691) ---------------------------------------------------------------------------------------------------- Net increase (decrease) 1,910,688 $ 17,884,156 (206,442) $ (1,743,642) ==================================================================================================== Class R** Shares sold 14,871 $ 137,993 -- $ -- Reinvestment of distributions -- -- -- -- Less shares repurchased -- -- -- -- ---------------------------------------------------------------------------------------------------- Net increase 14,871 $ 137,993 -- $ -- ==================================================================================================== Class Y Shares sold 5,198,013 $ 49,336,151 2,073,197 $ 20,451,495 Reinvestment of distributions 501,481 4,687,684 689,325 6,414,929 Less shares repurchased (2,195,105) (20,889,307) (1,392,505) (13,521,160) ---------------------------------------------------------------------------------------------------- Net increase 3,504,389 $ 33,134,528 1,370,017 $ 13,345,264 ==================================================================================================== * Class B shares converted to Class A shares on November 10, 2014. ** Class R shares commenced operations on July 1, 2015. The accompanying notes are an integral part of these financial statements. 50 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Financial Highlights ----------------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 ------------------------------------------------------------------------------------------------------------------------------ Class A Net asset value, beginning of period $ 9.76 $ 10.62 $ 9.64 $ 9.54 $ 8.49 ------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.18 $ 0.22 $ 0.22 $ 0.25 $ 0.22 Net realized and unrealized gain (loss) on investments 0.46 1.06 1.21 0.12 1.05 ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.64 $ 1.28 $ 1.43 $ 0.37 $ 1.27 ------------------------------------------------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.18) $ (0.22) $ (0.24) $ (0.26) $ (0.22) Net realized gain (0.86) (1.92) (0.21) (0.01) -- ------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (1.04) $ (2.14) $ (0.45) $ (0.27) $ (0.22) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.40) $ (0.86) $ 0.98 $ 0.10 $ 1.05 ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.36 $ 9.76 $ 10.62 $ 9.64 $ 9.54 ============================================================================================================================== Total return* 6.82% 13.63% 15.21% 4.01% 15.07% Ratio of net expenses to average net assets 1.16% 1.16% 1.16% 1.16% 1.16% Ratio of net investment income (loss) to average net assets 1.89% 2.22% 2.20% 2.63% 2.34% Portfolio turnover rate 44% 49% 41% 29% 29% Net assets, end of period (in thousands) $179,691 $149,672 $134,933 $123,060 $125,455 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.23% 1.25% 1.28% 1.30% 1.24% Net investment income (loss) to average net assets 1.82% 2.13% 2.08% 2.49% 2.26% ============================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 51 Financial Highlights (continued) --------------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 --------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 9.70 $ 10.58 $ 9.61 $ 9.51 $ 8.47 --------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.11 $ 0.15 $ 0.13 $ 0.17 $ 0.14 Net realized and unrealized gain (loss) on investments 0.47 1.04 1.22 0.12 1.04 --------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.58 $ 1.19 $ 1.35 $ 0.29 $ 1.18 --------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.12) $ (0.15) $ (0.17) $ (0.18) $ (0.14) Net realized gain (0.86) (1.92) (0.21) (0.01) -- --------------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.98) $ (2.07) $ (0.38) $ (0.19) $ (0.14) --------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.40) $ (0.88) $ 0.97 $ 0.10 $ 1.04 --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 9.30 $ 9.70 $ 10.58 $ 9.61 $ 9.51 =========================================================================================================================== Total return* 6.14%(a) 12.60% 14.35% 3.12% 13.99% Ratio of net expenses to average net assets 1.93% 1.95% 2.01% 2.02% 1.98% Ratio of net investment income (loss) to average net assets 1.10% 1.48% 1.25% 1.76% 1.52% Portfolio turnover rate 44% 49% 41% 29% 29% Net assets, end of period (in thousands) $40,470 $23,695 $28,019 $13,106 $13,492 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.93% 1.95% 2.01% 2.02% 1.98% Net investment income (loss) to average net assets 1.10% 1.48% 1.25% 1.76% 1.52% =========================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. (a) If the Fund had not recognized gains in settlement of class action lawsuits during the year ended July 31, 2015, the total return would have been 6.03%. The accompanying notes are an integral part of these financial statements. 52 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ---------------------------------------------------------------------------------------------------------------------------- 7/1/15 to 7/31/15 ---------------------------------------------------------------------------------------------------------------------------- Class R Net asset value, beginning of period $9.27 ---------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $0.00(a) Net realized and unrealized gain (loss) on investments 0.09 ---------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $0.09 ---------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ -- Net realized gain -- ---------------------------------------------------------------------------------------------------------------------------- Total distributions $ -- ---------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $0.09 ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $9.36 ============================================================================================================================ Total return* 0.97%(b) Ratio of net expenses to average net assets 1.30%** Ratio of net investment income (loss) to average net assets 2.73%** Portfolio turnover rate 44% Net assets, end of period (in thousands) $ 139 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.67%** Net investment income (loss) to average net assets 2.36%** ============================================================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period. ** Annualized. (a) Amount rounds to less than $0.01 or $(0.01) per share. (b) Not Annualized. The accompanying notes are an integral part of these financial statements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 53 Financial Highlights (continued) ------------------------------------------------------------------------------------------------------------------------------ Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 ------------------------------------------------------------------------------------------------------------------------------ Class Y Net asset value, beginning of period $ 9.79 $ 10.66 $ 9.66 $ 9.54 $ 8.49 ------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.20 $ 0.24 $ 0.23 $ 0.28 $ 0.25 Net realized and unrealized gain (loss) on investments 0.48 1.06 1.24 0.12 1.04 ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.68 $ 1.30 $ 1.47 $ 0.40 $ 1.29 ------------------------------------------------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.20) $ (0.25) $ (0.26) $ (0.27) $ (0.24) Net realized gain (0.86) (1.92) (0.21) (0.01) -- ------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (1.06) $ (2.17) $ (0.47) $ (0.28) $ (0.24) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.38) $ (0.87) $ 1.00 $ 0.12 $ 1.05 ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.41 $ 9.79 $ 10.66 $ 9.66 $ 9.54 ============================================================================================================================== Total return* 7.17% 13.77% 15.71% 4.40% 15.30% Ratio of net expenses to average net assets 0.93% 0.95% 0.90% 0.88% 0.84% Ratio of net investment income (loss) to average net assets 2.10% 2.47% 2.56% 2.91% 2.67% Portfolio turnover rate 44% 49% 41% 29% 29% Net assets, end of period (in thousands) $69,014 $37,507 $26,234 $136,597 $139,451 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 0.93% 0.95% 0.90% 0.88% 0.84% Net investment income (loss) to average net assets 2.10% 2.47% 2.56% 2.91% 2.67% ============================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period. The accompanying notes are an integral part of these financial statements. 54 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Notes to Financial Statements | 7/31/15 1. Organization and Significant Accounting Policies Pioneer Classic Balanced Fund (the Fund) is one of three portfolios comprising Pioneer Series Trust IV, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's investment objective is to seek capital growth and current income through a diversified portfolio of equity securities and bonds. The Fund offers four classes of shares designated as Class A, Class C, Class R and Class Y shares. Class R shares commenced operations on July 1, 2015. Class B shares were converted to Class A shares as of the close of business on November 10, 2014. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board of Trustees the flexibility to specify either per share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gain and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements: Pioneer Classic Balanced Fund | Annual Report | 7/31/15 55 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Equity securities that have traded on an exchange are valued at the last sale price on the principal exchange where they are traded. Equity securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Senior floating rate loan interests (senior loans) are valued in accordance with guidelines established by the Board of Trustees at the mean between the last available bid and asked prices from one or more brokers or dealers as obtained from Loan Pricing Corporation, an independent pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Event-linked bonds are valued at the bid price obtained from an independent third party pricing service. Other insurance linked securities may be valued at the bid price obtained from an independent pricing service, or through a third party using a pricing matrix, insurance industry valuation models, or other fair value methods or techniques to provide an estimated value of the instrument. Shares of money market mutual funds are valued at such funds' asset value. Cash may include overnight time deposits at approved financial institutions. Trading in foreign securities is substantially completed each day at various times prior to the close of the NYSE. The values of such securities used in computing the net asset value of the Fund's shares are determined as of such times. Securities for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. 56 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At July 31, 2015, there were no securities that were valued using fair value methods (other than securities valued using prices supplied by independent pricing services, broker-dealers or a third party insurance industry pricing model). B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Interest income is recorded on the accrual basis, net of unrecoverable foreign taxes withheld at the applicable country rates. Dividend income is recorded on the ex-dividend date, except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income, including interest on income bearing cash accounts, is recorded on the accrual basis, net of unrecoverable foreign taxes withheld at the applicable country rates. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 57 Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the Statement of Operations from the effects of changes in the market price of those securities but are included with the net realized and unrealized gain or loss on investments. D. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 6). E. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of July 31, 2015, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. At July 31, 2015, the Fund reclassified $67,735 to increase undistributed net investment income and $67,735 to decrease accumulated net realized gain on investments, futures contracts and foreign currency transactions to reflect permanent book/tax differences. These adjustments have no impact on net assets or the results of operations. 58 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 The tax character of distributions paid during the years ended July 31, 2015 and July 31, 2014 were as follows: ------------------------------------------------------------------------------------------ 2015 2014 ------------------------------------------------------------------------------------------ Distributable paid from: Ordinary income $ 6,228,672 $ 5,765,911 Long-term capital gain 18,845,521 35,028,989 ------------------------------------------------------------------------------------------ Total $ 25,074,193 $ 40,794,900 ========================================================================================== The following shows the components of distributable earnings on a federal income tax basis at July 31, 2015: ------------------------------------------------------------------------------------------ 2015 ------------------------------------------------------------------------------------------ Distributable earnings: Undistributed ordinary income $ 14,569 Undistributed long-term gain 4,561,956 Unrealized appreciation 37,060,558 ----------------------------------------------------------------------------------------- Total $ 41,637,083 ========================================================================================= The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax deferral of losses on wash sales, adjustments relating to catastrophe bonds, the tax treatment of premium and amortization, the mark-to-market of futures contracts, tax basis adjustments on Real Estate Investment Trust (REIT) holdings, interest accruals on preferred stock, partnerships and other holdings. F. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $58,765 in underwriting commissions on the sale of Class A shares during the year ended July 31, 2015. G. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A, Class C and Class R shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Pioneer Classic Balanced Fund | Annual Report | 7/31/15 59 Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C, Class R and Class Y shares can reflect different transfer agent and distribution expense rates. H. Risks At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund may invest in REIT securities, the value of which can fall for a variety of reasons, such as declines in rental income, fluctuating interest rates, poor property management, environmental liabilities, uninsured damage, increased competition, or changes in real estate tax laws. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. The Fund invests in event-linked bonds. Event-linked bonds are floating rate debt obligations for which the return of principal and the payment of interest are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The trigger event's magnitude may be based on losses to a company or industry, industry indexes or readings of scientific instruments, or may be based on specified actual losses. If a trigger event, as defined within the terms of an event-linked bond occurs, the Fund may lose a portion or all of its accrued interest and/or principal invested in such event-linked bond. The Fund is entitled to receive principal and interest payments so long as no trigger event occurs of the description and magnitude specified by the instrument. In addition to the specified trigger events, event-linked bonds may expose the Fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences. In addition to event-linked bonds, the Fund also may invest in other insurance-linked securities ("ILS"). The Fund's investments in ILS may include special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Structured reinsurance investments also may include industry loss warranties ("ILWs"), are subject to the same risks as event-linked bonds. In addition, because quota share instruments represent an interest in a basket of underlying reinsurance contracts, the Fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk 60 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 assessment and sound underwriting practices of the issuer. Accordingly, it may be more difficult for PIM to fully evaluate the underlying risk profile of the Fund's investment in quota share instruments and therefore place the Fund's assets at greater risk of loss than if PIM had more complete information. These securities may be difficult to purchase, sell or unwind and may be difficult to value. I. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. PIM is responsible for determining that the value of the collateral remains at least equal to the repurchase price. At July 31, 2015, the Fund had no open repurchase agreements. J. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at July 31, 2015 was $16,100. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amounts recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. The average value of contracts open during the year ended July 31, 2015 was $396,550. At July 31, 2015, open futures contracts were as follows: --------------------------------------------------------------------------------------- Number of Contracts Settlement Unrealized Type Long/(Short) Month/Year Value Appreciation --------------------------------------------------------------------------------------- U.S. Long Bond (CBT) 2 9/15 $311,875 $3,344 --------------------------------------------------------------------------------------- $311,875 $3,344 ======================================================================================= Pioneer Classic Balanced Fund | Annual Report | 7/31/15 61 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate of 0.65% of the Fund's average daily net assets up to $1 billion; 0.60% of the next $4 billion and 0.55% of the excess over $5 billion. For the year ended July 31, 2015, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.65% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.16%, 2.06% and 1.30% of the average daily net assets attributable to Class A, Class C and Class R shares, respectively. These expense limitations are in effect through December 1, 2016 for Class A shares and Class R shares and December 1, 2015 for Class C shares. Fees waived and expenses reimbursed during the year ended July 31, 2015 are reflected on the Statement of Operations. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the dates referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $10,648 in management fees, administrative costs and certain other reimbursements payable to PIM at July 31, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the year ended July 31, 2015, such out-of-pocket expenses by class of shares were as follows: ---------------------------------------------------------------------------------- Shareholder Communications: ---------------------------------------------------------------------------------- Class A $132,153 Class B 2,255 Class C 23,141 Class Y 77,012 ---------------------------------------------------------------------------------- Total $234,561 ================================================================================== Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $54,105 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at July 31, 2015. 62 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 4. Distribution Plan The Fund has adopted a distribution plan (the Plan) pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A, Class C and Class R shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Pursuant to the plan, the Fund further pays PFD 0.50% of the average daily net assets attributable to Class R shares held by such plans. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $4,678 in distribution fees payable to PFD at July 31, 2015. The Fund also has adopted a separate service plan for Class R shares (Service Plan). The Service Plan authorizes the Fund to pay securities dealers, plan administrators or other service organizations that agree to provide certain services to retirement plans or plan participants holding shares of the Fund a service fee of up to 0.25% of the Fund's average daily net assets attributable to Class R shares held by such plans. In addition, redemptions of each class of shares (except Class R or Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00% based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class R or Class Y shares. Proceeds from the CDSCs are paid to PFD. For the year ended July 31, 2015, CDSCs in the amount of $5,623 were paid to PFD. 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the year ended July 31, 2015, the Fund's expenses were not reduced under such arrangements. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 63 6. Forward Foreign Currency Contracts At July 31, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. There were no outstanding forward foreign currency contracts open during July 31, 2015. 7. Line of Credit Facility The Fund, along with certain other funds in the Pioneer Family of Funds (the Funds), participates in a committed, unsecured revolving line of credit facility. Borrowings are used solely for temporary or emergency purposes. The Fund may borrow up to the lesser of the amount available under the facility or the limits set for borrowing by the Fund's prospectus and the 1940 Act. The credit facility in effect until June 9, 2015 was in the amount of $215 million. As of June 9, 2015, the facility is in the amount of $240 million. Under such facility, depending on the type of loan, interest on borrowings is payable at the London Interbank Offered Rate (LIBOR) plus 0.85% (0.90% as of February 12, 2014) on an annualized basis, or the alternate base rate, which is the greater of (a) the facility's administrative agent's daily announced prime rate on the borrowing date, (b) 2% plus the federal funds rate on the borrowing date and (c) 2% plus the overnight eurodollar rate on the borrowing date. The Funds pay an annual commitment fee to participate in the credit facility. The commitment fee is allocated among participating Funds based on an allocation schedule set forth in the credit agreement. For the year ended July 31, 2015, the Fund had no borrowings under the credit agreement. 8. Additional Disclosures about Derivative Instruments and Hedging Activities ---------------------------------------------------------------------------------------- Derivatives Not Asset Derivatives Liabilities Derivatives Accounted for as ------------------------------------------------------------ Hedging Instruments Statement of Statement of Under Accounting Assets and Assets and Standards Codification Liabilities Liabilities (ASC) 815 Location Value Location Value ---------------------------------------------------------------------------------------- Futures contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts $3,344 futures contracts $-- ---------------------------------------------------------------------------------------- Total $3,344 $-- ======================================================================================== 64 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 The effect of derivative instruments on the Statement of Operations for the year ended July 31, 2015 was as follows: ---------------------------------------------------------------------------------------- Change in Derivatives Not Realized Unrealized Accounted for as Gain or Appreciation Hedging Instruments (Loss) on or (Depreciation) Under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ---------------------------------------------------------------------------------------- Futures contracts Net realized gain (loss) on futures contracts $27,124 Futures contracts Change in net unrealized appreciation (depreciation) on futures contracts $5,805 9. Conversion of Class B shares As of the close of business on November 10, 2014 (the "Conversion Date"), all outstanding Class B shares of the Fund were converted to Class A shares. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 65 Report of Independent Registered Public Accounting Firm To the Board of Trustees of Pioneer Series Trust IV and the Shareowners of Pioneer Classic Balanced Fund: --------------------------------------------------------------------------- We have audited the accompanying statement of assets and liabilities of Pioneer Classic Balanced Fund (the "Fund"), one of the portfolios constituting Pioneer Series Trust IV (the "Trust"), including the schedule of investments, as of July 31, 2015, and the related statement of operations for the year then ended and the statements of changes in net assets and the financial highlights for each of the two years in the period then ended. These financial statements and the financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The financial highlights for the years ended July 31, 2013, 2012, and 2011 were audited by other auditors. Those auditors expressed an unqualified opinion on those financial statements and financial highlights in their report dated September 24, 2013. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Fund is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2015, by correspondence with the custodian, brokers and agent banks; where replies were not received from brokers and agent banks, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Pioneer Classic Balanced Fund as of July 31, 2015, the results of its operations for the year then ended, and the changes in its net assets and the financial highlights for each of the two years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. /s/ Deloitte & Touche LLP Boston, Massachusetts September 24, 2015 66 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 ADDITIONAL INFORMATION (unaudited) For the year ended July 31, 2015, certain dividends paid by the Fund may be subject to a maximum tax rate of 15%, as provided for by the Jobs and Growth Tax Relief Reconciliation Act (the Act) of 2003. The Fund intends to designate up to the maximum amount of such dividends allowable under the Act, as taxed at a maximum rate of 15%. Complete information will be computed and reported in conjunction with your 2015 form 1099-DIV. The qualifying percentage of the Fund's ordinary income dividends for the purpose of the corporate dividends received deduction was 41.74%. The percentage of the Fund's ordinary income distributions that are exempt from nonresident alien (NRA) tax withholding resulting from qualified interest income and qualified short term gains were 31.85% and 22.01%, respectively. PIM, the Fund's investment adviser, is currently an indirect, wholly-owned subsidiary of UniCredit. On April 23, 2015, UniCredit announced that it signed a preliminary and exclusive agreement with Banco Santander and affiliates of Warburg Pincus and General Atlantic (the "Private Equity Firms") with respect to Pioneer Investments ("Pioneer") and Santander Asset Management ("SAM") (the "Transaction"). The Transaction, as described in the UniCredit announcement, will entail the establishment of a holding company, with the name Pioneer Investments, to be owned by UniCredit (50%) and the Private Equity Firms (50% between them). The holding company will control Pioneer's U.S. operations, including the Adviser. The holding company also will own 66.7% of Pioneer's and SAM's combined operations outside the U.S., while Banco Santander will own directly the remaining 33.3% stake. The completion of the Transaction is subject to the signing of a definitive agreement, as well as certain regulatory and corporate approvals, and other conditions. Under the Investment Company Act of 1940, completion of the Transaction will cause the Fund's investment advisory agreement with the Adviser to terminate. In connection with the Transaction, the Fund's Board of Trustees will be asked to approve a new investment advisory agreement for the Fund. If approved by the Board, the Fund's new investment advisory agreement will be submitted to the shareholders of the Fund for their approval. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 67 Trustees, Officers and Service Providers Investment Adviser Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Independent Registered Public Accounting Firm Deloitte & Touche LLP Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. Trustees and Officers The Fund's Trustees and officers are listed below, together with their principal occupations during at least the past five years. Trustees who are interested persons of the Fund within the meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are not interested persons of the Fund are referred to as Independent Trustees. Each of the Trustees serves as a Trustee of each of the 51 U.S. registered investment portfolios for which Pioneer serves as investment adviser (the "Pioneer Funds"). The address for all Trustees and all officers of the Fund is 60 State Street, Boston, Massachusetts 02109. The Statement of Additional Information of the Fund includes additional information about the Trustees and is available, without charge, upon request, by calling 1-800-225-6292. 68 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Independent Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Thomas J. Perna (64) Trustee since Private investor (2004 - 2008 and 2013 - Director, Broadridge Financial Chairman of the Board and 2006. Serves until present); Chairman (2008 - 2013) and Chief Solutions, Inc. (investor Trustee a successor Executive Officer (2008 - 2012), Quadriserv, Inc. communications and securities trustee is elected (technology products for securities lending processing provider for or earlier industry); and Senior Executive Vice President, financial services industry) retirement or The Bank of New York (financial and securities (2009 - present); Director, removal. services) (1986 - 2004) Quadriserv, Inc. (2005 - 2013); and Commissioner, New Jersey State Civil Service Commission (2011 - present) ------------------------------------------------------------------------------------------------------------------------------------ David R. Bock (71) Trustee since Managing Partner, Federal City Capital Advisors Director of New York Mortgage Trustee 2005. Serves until (corporate advisory services company) (1997 - Trust(publicly-traded mortgage a successor 2004 and 2008 - present); Interim Chief Executive REIT) (2004 - 2009, 2012 - trustee is elected Officer, Oxford Analytica, Inc. (privately-held present); Director of The or earlier research and consulting company) (2010); Executive Swiss Helvetia Fund, Inc. retirement or Vice President and Chief Financial Officer, (closed-end fund) (2010 - removal. I-trax, Inc. (publicly traded health care present); Director of Oxford services company) (2004 - 2007); and Executive Analytica, Inc. (2008 - Vice President and Chief Financial Officer, present); and Director of Pedestal Inc. (internet-based mortgage trading Enterprise Community company) (2000 - 2002); Private consultant (1995 Investment, Inc. - 1997), Managing Director, (privately-held affordable Lehman Brothers (investment banking firm) (1992 - housing finance company) (1985 1995); and Executive, The World Bank (1979 - - 2010) 1992) ------------------------------------------------------------------------------------------------------------------------------------ Benjamin M. Friedman (70) Trustee since William Joseph Maier Professor of Political Trustee, Mellon Institutional Trustee 2008. Serves until Economy, Harvard University (1972 - present) Funds Investment Trust and a successor Mellon Institutional Funds trustee is elected Master Portfolio (oversaw 17 or earlier portfolios in fund complex) retirement or (1989-2008) removal. ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Classic Balanced Fund | Annual Report | 7/31/15 69 Independent Trustees (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Position Term of Office and Other Directorships Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Margaret B.W. Graham (68) Trustee since Founding Director, Vice President and Corporate None Trustee 2005. Serves until Secretary, The Winthrop Group, Inc. (consulting a successor firm) (1982 - present); Desautels Faculty of trustee is elected Management, McGill University (1999 - present); or earlier and Manager of Research Operations and retirement or Organizational Learning, Xerox PARC, Xerox's removal. advance research center (1990 - 1994) ------------------------------------------------------------------------------------------------------------------------------------ Marguerite A. Piret (67) Trustee since President and Chief Executive Officer, Newbury, Director of New America High Trustee 2005. Serves until Piret & Company, Inc. (investment banking firm) Income Fund, Inc. (closed-end a successor (1981 - present) investment company) (2004 - trustee is elected present); and Member, Board of or earlier Governors, Investment Company retirement or Institute (2000 - 2006) removal. ------------------------------------------------------------------------------------------------------------------------------------ Fred J. Ricciardi (68) Trustee since Consultant (investment company services) (2012 - None Trustee 2014. Serves until present); Executive Vice President, BNY Mellon a successor (financial and investment company services) (1969 trustee is elected - 2012); Director, BNY International Financing or earlier Corp. (financial services) (2002 - 2012); and retirement or Director, Mellon Overseas Investment Corp. removal. (financial services) (2009 - 2012) ------------------------------------------------------------------------------------------------------------------------------------ 70 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Interested Trustee ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Kenneth J. Taubes (57)* Trustee since 2014. Director and Executive Vice President (since 2008) and None Trustee Serves until a Chief Investment Officer, U.S. (since 2010) of PIM-USA; successor trustee is Executive Vice President of Pioneer (since 2008); elected or earlier Executive Vice President of Pioneer Institutional Asset retirement or Management, Inc. (since 2009); and Portfolio Manager of removal. Pioneer (since 1999) ------------------------------------------------------------------------------------------------------------------------------------ * Mr. Taubes is an Interested Trustee because he is an officer of the Fund's investment adviser and certain of its affiliates. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 71 Advisory Trustee ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Lorraine Monchak (59)** Advisory Trustee Chief Investment Officer, 1199 SEIU Funds (healthcare None Advisory Trustee since 2014. workers union pension funds) (2001 - present); Vice President - International Investments Group, American International Group, Inc. (insurance company) (1993 - 2001); Vice President Corporate Finance and Treasury Group, Citibank, N.A. (1980 - 1986 and 1990 - 1993); Vice President - Asset/Liability Management Group, Federal Farm Funding Corporation (government-sponsored issuer of debt securities) (1988 - 1990); Mortgage Strategies Group, Shearson Lehman Hutton, Inc. (investment bank) (1987 - 1988); and Mortgage Strategies Group, Drexel Burnham Lambert, Ltd. (investment bank) (1986 - 1987) ------------------------------------------------------------------------------------------------------------------------------------ ** Ms. Monchak is a non-voting advisory trustee. 72 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 Fund Officers ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Lisa M. Jones (53) Since 2014. Serves at Chair, Director, CEO and President of Pioneer None President and Chief the discretion of the Investment Management-USA (since September 2014); Executive Officer Board. Chair, Director, CEO and President of Pioneer Investment Management, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Funds Distributor, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Institutional Asset Management, Inc. (since September 2014); and Chair, Director, and CEO of Pioneer Investment Management Shareholder Services, Inc. (since September 2014); Managing Director, Morgan Stanley Investment Management (2010 - 2013); and Director of Institutional Business, CEO of International, Eaton Vance Management (2005 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Christopher J. Kelley (50) Since 2005. Serves at Vice President and Associate General Counsel of Pioneer None Secretary and Chief Legal the discretion of the since January 2008; Secretary and Chief Legal Officer of Officer Board. all of the Pioneer Funds since June 2010; Assistant Secretary of all of the Pioneer Funds from September 2003 to May 2010; and Vice President and Senior Counsel of Pioneer from July 2002 to December 2007 ------------------------------------------------------------------------------------------------------------------------------------ Carol B. Hannigan (54) Since 2010. Serves at Fund Governance Director of Pioneer since December 2006 None Assistant Secretary the discretion of the and Assistant Secretary of all the Pioneer Funds since Board. June 2010; Manager - Fund Governance of Pioneer from December 2003 to November 2006; and Senior Paralegal of Pioneer from January 2000 to November 2003 ------------------------------------------------------------------------------------------------------------------------------------ Thomas Reyes (52) Since 2010. Serves at Senior Counsel of Pioneer since May 2013 and Assistant None Assistant Secretary the discretion of the Secretary of all the Pioneer Funds since June 2010; and Board. Counsel of Pioneer from June 2007 to May 2013 ------------------------------------------------------------------------------------------------------------------------------------ 5Mark E. Bradley (55) Since 2008. Serves at Vice President - Fund Treasury of Pioneer; Treasurer of None Treasurer and Chief the discretion of the all of the Pioneer Funds since March 2008; Deputy Financial and Accounting Board. Treasurer of Pioneer from March 2004 to February 2008; Officer and Assistant Treasurer of all of the Pioneer Funds from March 2004 to February 2008 ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Classic Balanced Fund | Annual Report | 7/31/15 73 Fund Officers (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Luis I. Presutti (50) Since 2005. Serves at Director - Fund Treasury of Pioneer; and Assistant None Assistant Treasurer the discretion of the Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ Gary Sullivan (57) Since 2005. Serves at Fund Accounting Manager - Fund Treasury of Pioneer; and None Assistant Treasurer the discretion of the Assistant Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ David F. Johnson (35) Since 2009. Serves at Fund Administration Manager - Fund Treasury of Pioneer None Assistant Treasurer the discretion of the since November 2008; Assistant Treasurer of all of the Board. Pioneer Funds since January 2009; and Client Service Manager - Institutional Investor Services at State Street Bank from March 2003 to March 2007 ------------------------------------------------------------------------------------------------------------------------------------ Jean M. Bradley (62) Since 2010. Serves at Chief Compliance Officer of Pioneer and of all the None Chief Compliance Officer the discretion of the Pioneer Funds since March 2010; Chief Compliance Officer Board. of Pioneer Institutional Asset Management, Inc. since January 2012; Chief Compliance Officer of Vanderbilt Capital Advisors, LLC since July 2012: Director of Adviser and Portfolio Compliance at Pioneer since October 2005; and Senior Compliance Officer for Columbia Management Advisers, Inc. from October 2003 to October 2005 ------------------------------------------------------------------------------------------------------------------------------------ Kelly O'Donnell (44) Since 2006. Serves at Director - Transfer Agency Compliance of Pioneer and None Anti-Money Laundering the discretion of the Anti-Money Laundering Officer of all the Pioneer Funds Officer Board. since 2006 ------------------------------------------------------------------------------------------------------------------------------------ 74 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Classic Balanced Fund | Annual Report | 7/31/15 75 This page for your notes. 76 Pioneer Classic Balanced Fund | Annual Report | 7/31/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 19418-09-0915 Pioneer Government Income Fund -------------------------------------------------------------------------------- Annual Report | July 31, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A AMGEX Class C GOVCX Class Y ATGIX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 8 Prices and Distributions 9 Performance Update 10 Comparing Ongoing Fund Expenses 13 Schedule of Investments 15 Financial Statements 31 Notes to Financial Statements 38 Report of Independent Registered Public Accounting Firm 46 Trustees, Officers and Service Providers 48 Pioneer Government Income Fund | Annual Report | 7/31/15 1 President's Letter Dear Shareowner, In the second half of 2015, two main issues have been dominating the attention of global investors and policymakers alike, and shaping the current investment environment: The Federal Reserve System's (the Fed's) deliberations over when to begin normalizing interest rates in the U.S., and the increasing divergence in economic activity around the globe. As 2015 began, market expectations were that the Fed would likely begin raising interest rates by the middle of the year, but a sluggish gross domestic product report in the first calendar quarter as well as relatively benign inflation and wage growth contributed to the Fed's taking a more cautionary approach and delaying the start of its rate-hike cycle. At the same time, however, the U.S. labor market has continued its robust improvement, moving the Fed closer to declaring victory on one of its main monetary policy objectives -- full employment. Meanwhile, global economic activity has continued to diverge, with developed economies experiencing above-trend growth and most emerging markets economies lagging the rest of the world. The slower pace of economic activity in the emerging markets has been most evident in China, as the country's economy continues to undergo a long, potentially painful adjustment from investment-led growth to consumption-oriented growth. This divergence in global economic cycles is likely to continue for some time, and we would expect an increased level of volatility as global capital markets and policymakers adjust. Pioneer Investments believes that investors in today's environment can potentially benefit from the consistent and disciplined investment approach we have used since our founding in 1928. We focus on identifying value across global markets using proprietary research, careful risk management, and a long-term perspective. Our ongoing goal is to produce compelling returns consistent with the stated objectives of our investment products, and with our shareowners' expectations. We believe our shareowners can benefit from the experience and tenure of our investment teams as well as the insights generated from our extensive research process. 2 Pioneer Government Income Fund | Annual Report | 7/31/15 As always, and particularly during times of market uncertainty, we encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short-and long-term goals, and to implement such a plan in a disciplined manner. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Government Income Fund | Annual Report | 7/31/15 3 Portfolio Management Discussion | 7/31/15 Led by longer-maturity Treasuries, U.S. government securities produced positive performance over the 12-month period ended July 31, 2015, although interest rates began moving higher in the second half of the period, eroding some of the gains realized during the first six months. In the following interview, Richard Schlanger and Charles Melchreit discuss the investment environment and the factors that affected the performance of Pioneer Government Income Fund during the 12-month period. Mr. Schlanger, a vice president and a portfolio manager at Pioneer, and Mr. Melchreit, Director of Investment-Grade Management, a senior vice president and a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the 12-month period ended July 31, 2015? A Pioneer Government Income Fund's Class A shares returned 1.83% at net asset value during the 12-month period ended July 31, 2015, while the Fund's benchmarks, the Barclays Government Bond Index and the Barclays U.S. Mortgage-Backed Securities Index, returned 3.26% and 3.54%, respectively. During the same period, the average return of the 70 mutual funds in Lipper's Intermediate U.S. Government Funds category was 2.22%, and the average return of the 313 mutual funds in Morningstar's Intermediate-Government Bond Funds category was 2.42%. Q How would you describe the investment environment for government securities during the 12-month period ended July 31, 2015? A The investment backdrop changed and became somewhat more volatile after the midpoint of the 12-month period, with longer-maturity government securities, notably U.S. Treasuries, giving up some of their gains from earlier in the period. Overall, the yield curve - which reflects the difference between yields of longer-maturity and shorter-maturity securities - flattened over the 12 months, with longer-maturity government securities outperforming shorter-maturity ones. After declining for a time, the yields of 10-Year Treasuries bottomed at 1.64% in mid-January 2015, and then began moving higher. The markets also became more volatile as a host of factors influenced investor sentiment, including: the perception that the U.S. economy was gaining strength, as monthly job gains averaged more than 200,000; the accompanying belief that the U.S. Federal Reserve System (the Fed) was preparing to tighten monetary policy by raising short-term interest rates; volatility in energy markets as oil prices declined early in the period, rose somewhat, and then dropped again towards the end of the 12 months; 4 Pioneer Government Income Fund | Annual Report | 7/31/15 concerns over the effects of an economic slowdown in China; the start of a quantitative easing policy by the European Central Bank (ECB); and certain global political and economic developments, including the threat that Greece would default on its debt obligations. In the government bond market, longer-maturity Treasuries outperformed other types of securities, although the early performance advantage of Treasuries was partially offset as the yield curve widened and longer- maturity interest rates moved higher over the final six months of the period. Q What were the principal factors that influenced the Fund's performance during the 12-month period ended July 31, 2015? Specifically, why did the Fund underperform its benchmarks during the period? A The Fund's benchmark-relative performance was hurt the most by the portfolio's shorter-duration stance relative to the Barclays Government Bond Index during the 12-month period. (Duration is a measure of the sensitivity of the price - the value of principal - of a fixed-income investment to a change in interest rates, expressed as a number of years.) The Fund, on average, had a 1.5-year shorter-than-benchmark duration during the period. We maintained the shorter positioning because we believed that interest rates were likely to begin rising, as we felt that the lower yields we were observing were inconsistent with a strengthening economy. Nevertheless, market interest rates declined, especially during the first half of the 12-month period, and longer-duration portfolios outperformed. Yield-curve positioning also detracted from the Fund's benchmark-relative performance, as the portfolio's underweight exposures to 30-year and five-year securities did not help. Although we significantly underweighted the Fund in outperforming U.S. Treasuries throughout the 12 months, the yield advantages of the portfolio's holdings of government-agency mortgages and government-agency debentures helped to compensate for the lack of exposure to Treasuries. While Treasuries accounted for approximately 90% of the Barclays Government Bond Index, they represented, on average, just 20% of the Fund's total investment portfolio over the fiscal year ended July 31, 2015. Allocations that helped support the Fund's results over the 12-month period included the portfolio's out-of-benchmark position in government- guaranteed commercial mortgages, which were used primarily to finance multi-family apartment developments. The securities performed quite well over the 12 months. Exposure to government-agency mortgages as well as good security selection results in the Fund's mortgage portfolio also helped performance, as we favored owning securities with lower prepayment risks, including higher-coupon mortgages with good state and servicer diversification. Pioneer Government Income Fund | Annual Report | 7/31/15 5 Q Did the Fund have any investments in derivative securities during the 12-month period ended July 31, 2015? If so, did the holdings affect benchmark-relative performance? A Yes, we invested in some Treasury futures contracts as part of our policy to maintain the Fund's shorter-than-benchmark duration. Because the shorter-duration positioning detracted from the Fund's benchmark-relative performance during the 12-month period, the use of the futures contracts detracted from relative returns. Q What factors affected the Fund's dividend distributions to shareholders during the 12-month period ended July 31, 2015? A The Fund's yield was relatively stable during the 12-month period. Looking forward, if market interest rates continue to climb and it becomes more likely that the Fed will start raising short-term rates, we think those factors would increase the possibility that the Fund's distributions to shareholders could start to rise. Q What is your investment outlook and how have you positioned the portfolio heading into the final months of 2015? A We believe prospects for the U.S. economy look good, although uncertainties continue to unsettle investor sentiment. In the United States, the economy - as measured by recently revised gross domestic product (GDP) figures - grew at an annual rate of nearly 4% during the second quarter of 2015, a noticeable improvement over the slight GDP increase of 0.6% in the first quarter. The job market continues to improve and the housing market appears to be healing, with household formation moving higher. All of those factors point to the Fed's starting to raise short-term interest rates very gradually before the end of the calendar year. Nevertheless, the market remains volatile. Slowing growth trends in China, combined with the devaluation of the Chinese currency and volatility in the Chinese equity markets, have caused much consternation among market participants. The debt situation in Greece remains a factor to be monitored. We have maintained the portfolio's short-duration stance relative to the benchmark, as we think the chances are increasing that interest rates will rise across the yield curve. We also continue to overweight the Fund in government-agency mortgages, while de-emphasizing Treasuries, which are highly interest-rate sensitive. Overall, we believe the portfolio is well positioned for an environment of continued economic growth in the United States, accompanied by gradually rising interest rates. 6 Pioneer Government Income Fund | Annual Report | 7/31/15 Please refer to the Schedule of Investments on pages 15-30 for a full listing of Fund securities. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of the issuers of underlying securities and their inability to meet their debt obligations. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The securities issued by U.S. government-sponsored entities (i.e., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. government. The Fund may invest in mortgage-backed securities, which, during times of fluctuating interest rates, may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to prepayments. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political or regulatory developments or other risks affecting those industries and sectors. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Government Income Fund | Annual Report | 7/31/15 7 Portfolio Summary | 7/31/15 Portfolio Diversification -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Government Securities 75.0% Collateralized Mortgage Obligations 13.9% Foreign Government Bonds 5.8% Asset Backed Securities 4.2% Municipal Bonds 0.6% U.S. Corporate Bonds 0.5% Portfolio Maturity -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) 0-2 Years 5.8% 2-5 Years 38.0% 5-7 Years 38.5% 7-10 Years 10.3% 20+ Years 7.4% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. U.S. Treasury Notes, 1.875%, 8/31/17 5.10% -------------------------------------------------------------------------------- 2. Fannie Mae, 4.5%, 12/1/43 4.93 -------------------------------------------------------------------------------- 3. Private Export Funding Corp., 4.3%, 12/15/21 3.68 -------------------------------------------------------------------------------- 4. Israel Government AID Bond, 5.5%, 4/26/24 3.52 -------------------------------------------------------------------------------- 5. U.S. Treasury Notes, 2.625%, 11/15/20 3.52 -------------------------------------------------------------------------------- 6. Private Export Funding Corp., 4.375%, 3/15/19 3.17 -------------------------------------------------------------------------------- 7. U.S. Treasury Bonds, 4.25%, 5/15/39 2.98 -------------------------------------------------------------------------------- 8. Federal National Mortgage Association, 4.92%, 7/25/20 2.98 -------------------------------------------------------------------------------- 9. Fannie Mae, 4.0%, 4/1/39 2.89 -------------------------------------------------------------------------------- 10. U.S. Treasury Notes, 0.625%, 5/31/17 2.87 -------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 8 Pioneer Government Income Fund | Annual Report | 7/31/15 Prices and Distributions | 7/31/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 7/31/15 7/31/14 -------------------------------------------------------------------------------- A $9.39 $9.42 -------------------------------------------------------------------------------- C $9.39 $9.42 -------------------------------------------------------------------------------- Y $9.40 $9.43 -------------------------------------------------------------------------------- Distributions per Share: 8/1/14-7/31/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.2020 $-- $-- -------------------------------------------------------------------------------- C $0.1326 $-- $-- -------------------------------------------------------------------------------- Y $0.2330 $-- $-- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Barclays Government Bond Index is an unmanaged index that measures the performance of the U.S. government bond market. The Barclays U.S. Mortgage-Backed Securities Index is an unmanaged index including 15- and 30-year fixed-rate securities backed by mortgage pools of the Government National Mortgage Association (GNMA), Federal Home Loan Mortgage Corporation (FHLMC) and Federal National Mortgage Association (FNMA). Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The indices defined here pertain to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts on pages 10-12. Pioneer Government Income Fund | Annual Report | 7/31/15 9 Performance Update | 7/31/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Government Income Fund at public offering price during the periods shown, compared to that of the Barclays Government Bond Index and the Barclays U.S. Mortgage-Backed Securities Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays U.S. Net Public Barclays Mortgage- Asset Offering Government Backed Value Price Bond Securities Period (NAV) (POP) Index Index -------------------------------------------------------------------------------- 10 Years 3.69% 3.22% 4.20% 4.68% 5 Years 1.93 0.99 2.66 2.85 1 Year 1.83 -2.71 3.26 3.54 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.28% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Barclays U.S. Pioneer Government Barclays Government Mortgage-Backed Income Fund Bond Index Securities Index 7/31/2005 $ 9,550 $10,000 $10,000 7/31/2006 $ 9,627 $10,124 $10,235 7/31/2007 $10,054 $10,711 $10,808 7/31/2008 $10,706 $11,634 $11,560 7/31/2009 $11,624 $12,411 $12,766 7/31/2010 $12,482 $13,238 $13,725 7/31/2011 $12,851 $13,670 $14,253 7/31/2012 $13,625 $14,703 $14,943 7/31/2013 $13,211 $14,330 $14,647 7/31/2014 $13,484 $14,618 $15,254 7/31/2015 $13,732 $15,095 $15,793 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Pioneer Government Income Fund acquired the assets and liabilities of AmSouth Government Income Fund on September 23, 2005. The performance shown for Class A shares of the Fund for periods prior to September 23, 2005, is based on the performance of AmSouth Government Income Fund's Class A shares prior to the reorganization, which has been restated to reflect differences in any applicable sales charges (but not differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class A shares of the Fund would be lower than that shown. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 10 Pioneer Government Income Fund | Annual Report | 7/31/15 Performance Update | 7/31/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Government Income Fund during the periods shown, compared to that of the Barclays Government Bond Index and the Barclays U.S. Mortgage-Backed Securities Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays U.S. Barclays Mortgage- Government Backed If If Bond Securities Period Held Redeemed Index Index -------------------------------------------------------------------------------- 10 Years 2.93% 2.93% 4.20% 4.68% 5 Years 1.21 1.21 2.66 2.85 1 Year 1.09 1.09 3.26 3.54 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 2.02% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Barclays U.S. Pioneer Government Barclays Government Mortgage-Backed Income Fund Bond Index Securities Index 7/31/2005 $10,000 $10,000 $10,000 7/31/2006 $ 9,982 $10,124 $10,235 7/31/2007 $10,355 $10,711 $10,808 7/31/2008 $10,945 $11,634 $11,560 7/31/2009 $11,799 $12,411 $12,766 7/31/2010 $12,565 $13,238 $13,725 7/31/2011 $12,857 $13,670 $14,253 7/31/2012 $13,537 $14,703 $14,943 7/31/2013 $13,039 $14,330 $14,647 7/31/2014 $13,201 $14,618 $15,254 7/31/2015 $13,345 $15,095 $15,793 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Pioneer Government Income Fund acquired the assets and liabilities of AmSouth Government Income Fund on September 23, 2005. The performance shown for Class C shares of the Fund for periods prior to September 23, 2005, is based upon the performance of the predecessor Fund's Class B shares as adjusted to reflect sales charges applicable to Class C shares (but not other differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class C shares of the Fund would be lower than that shown. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all Funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Government Income Fund | Annual Report | 7/31/15 11 Performance Update | 7/31/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Government Income Fund during the periods shown, compared to that of the Barclays Government Bond Index and Barclays U.S. Mortgage-Backed Securities Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- Barclays U.S. Barclays Mortgage- Net Asset Government Backed Value Bond Securities Period (NAV) Index Index -------------------------------------------------------------------------------- 10 Years 4.12% 4.20% 4.68% 5 Years 2.33 2.66 2.85 1 Year 2.17 3.26 3.54 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.92% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Barclays U.S. Pioneer Government Barclays Government Mortgage-Backed Income Fund Bond Index Securities Index 7/31/2005 $5,000,000 $5,000,000 $5,000,000 7/31/2006 $5,054,027 $5,061,992 $5,117,317 7/31/2007 $5,301,322 $5,355,667 $5,403,957 7/31/2008 $5,671,289 $5,817,089 $5,779,866 7/31/2009 $6,192,340 $6,205,318 $6,382,901 7/31/2010 $6,672,230 $6,619,194 $6,862,699 7/31/2011 $6,893,775 $6,834,921 $7,126,654 7/31/2012 $7,345,963 $7,351,707 $7,471,733 7/31/2013 $7,151,504 $7,165,157 $7,323,706 7/31/2014 $7,328,811 $7,309,060 $7,626,872 7/31/2015 $7,487,675 $7,547,371 $7,896,508 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Pioneer Government Income Fund acquired the assets and liabilities of AmSouth Government Income Fund on September 23, 2005. The performance shown for Class Y shares of the Fund for periods prior to September 23, 2005, is based on the performance of AmSouth Government Income Fund's Class I shares prior to the reorganization, which has been restated to reflect differences in any applicable sales charges (but not differences in expenses). If the performance had been adjusted to reflect all differences in expenses, the performance of Class Y shares of the Fund would be lower than that shown. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Government Income Fund | Annual Report | 7/31/15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Government Income Fund Based on actual returns from February 1, 2015, through July 31, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 2/1/15 -------------------------------------------------------------------------------- Ending Account Value $ 993.95 $ 990.50 $ 996.68 (after expenses) on 7/31/15 -------------------------------------------------------------------------------- Expenses Paid . $ 6.58 $ 9.97 $ 4.75 During Period* -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio of 1.33%, 2.02%, and 0.96% for Class A, C, and Y respectively, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). Pioneer Government Income Fund | Annual Report | 7/31/15 13 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Government Income Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from February 1, 2015, through July 31, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 2/1/15 Ending Account Value $1,018.20 $1,014.78 $1,020.03 (after expenses) on 7/31/15 Expenses Paid $ 6.66 $ 10.09 $ 4.81 During Period* * Expenses are equal to the Fund's annualized expense ratio of 1.33%, 2.02%, and 0.96% for Class A, C, and Y respectively, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). 14 Pioneer Government Income Fund | Annual Report | 7/31/15 Schedule of Investments | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ ASSET BACKED SECURITIES -- 4.1% DIVERSIFIED FINANCIALS -- 4.1% Other Diversified Financial Services -- 4.1% 301,904 Small Business Administration Participation Certificates, 4.2%, 9/1/29 $ 322,022 538,769 Small Business Administration Participation Certificates, 4.625%, 2/1/25 572,541 554,158 Small Business Administration Participation Certificates, 4.84%, 5/1/25 591,991 636,493 Small Business Administration Participation Certificates, 5.37%, 4/1/28 709,783 438,261 Small Business Administration Participation Certificates, 5.63%, 10/1/28 488,504 129,690 Small Business Administration Participation Certificates, 5.72%, 1/1/29 146,618 794,685 Small Business Administration Participation Certificates, 6.02%, 8/1/28 901,921 148,985 Small Business Administration Participation Certificates, 6.14%, 1/1/22 162,708 398,011 Small Business Administration Participation Certificates, 6.22%, 12/1/28 452,768 ------------- $ 4,348,856 ------------- Total Diversified Financials $ 4,348,856 ------------------------------------------------------------------------------------------ TOTAL ASSET BACKED SECURITIES (Cost $4,035,535) $ 4,348,856 ------------------------------------------------------------------------------------------ COLLATERALIZED MORTGAGE OBLIGATIONS -- 13.7% BANKS -- 4.2% Thrifts & Mortgage Finance -- 4.2% 897,622 Government National Mortgage Association REMICS, 3.25%, 4/16/27 $ 936,673 1,242,383 3.17 La Hipotecaria Panamanian Mortgage Trust 2010-1, Floating Rate Note, 9/8/39 (144A) 1,283,537 280,109 3.26 La Hipotecaria Panamanian Mortgage Trust 2014-1, Floating Rate Note, 11/24/42 (144A) 286,936 574,337 Vendee Mortgage Trust 2008-1, 5.25%, 1/15/32 637,879 1,174,449 Vendee Mortgage Trust 2010-1, 4.25%, 2/15/35 1,262,603 ------------- $ 4,407,628 ------------- Total Banks $ 4,407,628 ------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 15 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 1.7% Other Diversified Financial Services -- 1.7% 1,687,946 Federal National Mortgage Association REMICS, 3.0%, 6/25/23 $ 1,760,724 ------------- Total Diversified Financials $ 1,760,724 ------------------------------------------------------------------------------------------ GOVERNMENT -- 7.8% Government -- 7.8% 131,094 0.59 Federal Home Loan Mortgage Corp. REMICS, Floating Rate Note, 12/15/20 $ 131,914 981,985 3.42 Federal National Mortgage Association 2004-T2, Floating Rate Note, 7/25/43 1,020,793 92,277 Federal National Mortgage Association REMICS, 4.5%, 6/25/29 99,149 2,925,541 Federal National Mortgage Association, 4.92%, 7/25/20 3,107,492 1,451,380 Government National Mortgage Association REMICS, 2.1%, 2/16/48 1,460,894 126,088 Government National Mortgage Association, 5.25%, 8/16/35 141,596 2,000,000 4.65 Government National Mortgage Association, Floating Rate Note, 1/16/50 2,181,112 162,951 0.63 Government National Mortgage Association, Floating Rate Note, 12/16/29 163,656 ------------- $ 8,306,606 ------------- Total Government $ 8,306,606 ------------------------------------------------------------------------------------------ TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $13,966,877) $ 14,474,958 ------------------------------------------------------------------------------------------ CORPORATE BONDS -- 0.5% DIVERSIFIED FINANCIALS -- 0.5% Other Diversified Financial Services -- 0.5% 501,785 Helios Leasing I LLC, 2.018%, 5/29/24 $ 500,487 ------------- Total Diversified Financials $ 500,487 ------------------------------------------------------------------------------------------ TOTAL CORPORATE BONDS (Cost $541,524) $ 500,487 ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 74.0% 356,380 Fannie Mae, 3.5%, 4/1/45 $ 370,185 1,297,573 Fannie Mae, 3.763%, 12/1/20 1,395,797 2,715,042 Fannie Mae, 4.0%, 10/1/41 2,901,082 552,685 Fannie Mae, 4.0%, 4/1/25 589,720 2,832,586 Fannie Mae, 4.0%, 4/1/39 3,014,282 1,800,827 Fannie Mae, 4.0%, 4/1/41 1,925,533 The accompanying notes are an integral part of these financial statements. 16 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 831,997 Fannie Mae, 4.0%, 7/1/44 $ 886,942 78,525 Fannie Mae, 4.0%, 9/1/20 82,368 23,027 Fannie Mae, 4.5%, 11/1/20 24,142 4,682,260 Fannie Mae, 4.5%, 12/1/43 5,146,968 109,452 Fannie Mae, 5.0%, 1/1/20 117,366 264,376 Fannie Mae, 5.0%, 10/1/34 287,846 1,348,575 Fannie Mae, 5.0%, 2/1/39 1,495,222 114,487 Fannie Mae, 5.0%, 3/1/23 123,723 271,846 Fannie Mae, 5.0%, 7/1/34 295,488 92,862 Fannie Mae, 5.0%, 8/1/18 97,211 63,616 Fannie Mae, 5.72%, 11/1/28 72,345 47,112 Fannie Mae, 5.72%, 6/1/29 53,622 62,884 Fannie Mae, 5.75%, 3/1/33 71,933 31,968 Fannie Mae, 5.9%, 11/1/27 36,409 17,509 Fannie Mae, 5.9%, 2/1/28 17,615 89,591 Fannie Mae, 5.9%, 4/1/28 102,008 325,022 Fannie Mae, 6.0%, 11/1/34 371,044 32,358 Fannie Mae, 6.0%, 11/1/34 36,700 50,317 Fannie Mae, 6.0%, 12/1/37 57,005 69,874 Fannie Mae, 6.5%, 11/1/47 78,064 128,295 Fannie Mae, 6.5%, 7/1/32 149,013 933,400 Federal Home Loan Mortgage Corp., 3.5%, 12/1/44 967,770 1,189,493 Federal Home Loan Mortgage Corp., 3.5%, 4/1/45 1,233,293 745,443 Federal Home Loan Mortgage Corp., 4.0%, 6/1/42 791,801 110,400 Federal Home Loan Mortgage Corp., 5.0%, 10/1/38 121,360 102,249 Federal Home Loan Mortgage Corp., 5.0%, 9/1/38 112,396 20,387 Federal Home Loan Mortgage Corp., 5.5%, 1/1/34 22,765 114,068 Federal Home Loan Mortgage Corp., 6.0%, 1/1/33 130,265 140,697 Federal Home Loan Mortgage Corp., 6.0%, 1/1/38 158,874 51,928 Federal Home Loan Mortgage Corp., 6.0%, 11/1/33 58,776 3,336 Federal Home Loan Mortgage Corp., 6.0%, 5/1/16 3,384 3,027 Federal Home Loan Mortgage Corp., 6.0%, 6/1/16 3,074 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 17 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 73,160 Federal Home Loan Mortgage Corp., 6.0%, 7/1/36 $ 82,818 20,834 Federal Home Loan Mortgage Corp., 6.0%, 7/1/36 23,744 138,495 Federal Home Loan Mortgage Corp., 6.0%, 7/1/38 156,370 14,417 Federal Home Loan Mortgage Corp., 6.0%, 8/1/18 16,276 10,767 Federal Home Loan Mortgage Corp., 6.5%, 5/1/31 12,303 75,429 Federal Home Loan Mortgage Corp., 7.0%, 10/1/46 85,760 4,226 Federal Home Loan Mortgage Corp., 7.0%, 6/1/31 4,240 923,178 Federal National Mortgage Association, 3.0%, 12/1/21 962,308 2,000,000 Financing Corp. Fico, 5/11/18 (c) 1,933,442 914,659 Government National Mortgage Association I, 3.5%, 1/15/44 960,396 688,668 Government National Mortgage Association I, 3.5%, 1/15/45 719,753 895,597 Government National Mortgage Association I, 3.5%, 7/15/42 939,625 600,558 Government National Mortgage Association I, 4.0%, 1/15/45 641,964 135,044 Government National Mortgage Association I, 4.0%, 3/15/44 143,835 261,701 Government National Mortgage Association I, 4.0%, 7/15/41 279,251 386,911 Government National Mortgage Association I, 4.0%, 8/15/40 413,157 133,351 Government National Mortgage Association I, 4.0%, 9/15/40 142,137 186,718 Government National Mortgage Association I, 4.0%, 9/15/44 198,873 27,943 Government National Mortgage Association I, 4.5%, 12/15/19 29,621 28,742 Government National Mortgage Association I, 4.5%, 4/15/18 30,097 74,896 Government National Mortgage Association I, 4.5%, 4/15/20 79,396 61,064 Government National Mortgage Association I, 4.5%, 6/15/19 64,907 263,510 Government National Mortgage Association I, 4.5%, 6/15/25 280,320 The accompanying notes are an integral part of these financial statements. 18 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 18,613 Government National Mortgage Association I, 4.5%, 8/15/19 $ 19,587 77,222 Government National Mortgage Association I, 5.0%, 2/15/19 82,336 322,242 Government National Mortgage Association I, 5.0%, 7/15/40 357,369 56,334 Government National Mortgage Association I, 5.5%, 1/15/29 63,317 70,238 Government National Mortgage Association I, 5.5%, 10/15/19 73,872 81,865 Government National Mortgage Association I, 5.5%, 10/15/33 94,017 57,471 Government National Mortgage Association I, 5.5%, 10/15/34 65,514 29,799 Government National Mortgage Association I, 5.5%, 4/15/19 31,061 39,934 Government National Mortgage Association I, 5.5%, 4/15/31 44,866 23,870 Government National Mortgage Association I, 5.5%, 6/15/18 24,744 169,936 Government National Mortgage Association I, 5.5%, 8/15/33 195,412 81,528 Government National Mortgage Association I, 5.5%, 9/15/33 92,712 21,166 Government National Mortgage Association I, 5.72%, 4/15/29 23,803 19,504 Government National Mortgage Association I, 6.0%, 1/15/24 22,254 41,535 Government National Mortgage Association I, 6.0%, 1/15/33 48,098 71,192 Government National Mortgage Association I, 6.0%, 1/15/33 82,877 8,060 Government National Mortgage Association I, 6.0%, 10/15/28 9,236 19,051 Government National Mortgage Association I, 6.0%, 10/15/32 21,525 75,403 Government National Mortgage Association I, 6.0%, 10/15/32 85,194 87,915 Government National Mortgage Association I, 6.0%, 10/15/34 101,980 67,679 Government National Mortgage Association I, 6.0%, 10/15/34 77,165 180,616 Government National Mortgage Association I, 6.0%, 10/15/34 210,104 8,474 Government National Mortgage Association I, 6.0%, 11/15/32 9,575 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 19 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 10,034 Government National Mortgage Association I, 6.0%, 11/15/32 $ 11,480 144,178 Government National Mortgage Association I, 6.0%, 11/15/33 164,868 59,260 Government National Mortgage Association I, 6.0%, 11/15/37 67,445 222,596 Government National Mortgage Association I, 6.0%, 12/15/23 251,499 157,281 Government National Mortgage Association I, 6.0%, 12/15/32 178,966 433,307 Government National Mortgage Association I, 6.0%, 12/15/32 501,600 119,327 Government National Mortgage Association I, 6.0%, 12/15/32 138,334 21,731 Government National Mortgage Association I, 6.0%, 12/15/32 25,297 93,595 Government National Mortgage Association I, 6.0%, 12/15/32 106,810 220,530 Government National Mortgage Association I, 6.0%, 12/15/32 251,413 23,021 Government National Mortgage Association I, 6.0%, 12/15/32 26,777 86,835 Government National Mortgage Association I, 6.0%, 2/15/29 101,012 123,105 Government National Mortgage Association I, 6.0%, 2/15/33 143,314 30,365 Government National Mortgage Association I, 6.0%, 2/15/33 34,308 172,863 Government National Mortgage Association I, 6.0%, 2/15/33 201,752 103,641 Government National Mortgage Association I, 6.0%, 2/15/33 118,698 54,184 Government National Mortgage Association I, 6.0%, 3/15/19 61,219 76,913 Government National Mortgage Association I, 6.0%, 3/15/33 86,899 57,820 Government National Mortgage Association I, 6.0%, 3/15/33 66,185 46,319 Government National Mortgage Association I, 6.0%, 3/15/33 53,849 220,536 Government National Mortgage Association I, 6.0%, 3/15/34 256,624 63,783 Government National Mortgage Association I, 6.0%, 4/15/28 74,266 24,527 Government National Mortgage Association I, 6.0%, 4/15/33 28,095 The accompanying notes are an integral part of these financial statements. 20 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 43,427 Government National Mortgage Association I, 6.0%, 5/15/33 $ 49,703 116,148 Government National Mortgage Association I, 6.0%, 6/15/31 132,446 82,182 Government National Mortgage Association I, 6.0%, 6/15/34 95,696 45,781 Government National Mortgage Association I, 6.0%, 8/15/34 52,037 211,125 Government National Mortgage Association I, 6.0%, 8/15/34 242,018 127,859 Government National Mortgage Association I, 6.0%, 8/15/38 145,739 309,476 Government National Mortgage Association I, 6.0%, 9/15/32 354,138 78,608 Government National Mortgage Association I, 6.0%, 9/15/32 89,852 19,619 Government National Mortgage Association I, 6.0%, 9/15/33 22,166 31,904 Government National Mortgage Association I, 6.0%, 9/15/34 36,608 178,617 Government National Mortgage Association I, 6.0%, 9/15/35 207,808 54,750 Government National Mortgage Association I, 6.5%, 1/15/32 62,476 35,231 Government National Mortgage Association I, 6.5%, 10/15/24 40,307 26,374 Government National Mortgage Association I, 6.5%, 10/15/28 30,337 6,716 Government National Mortgage Association I, 6.5%, 10/15/28 7,664 46,562 Government National Mortgage Association I, 6.5%, 11/15/31 53,133 15,160 Government National Mortgage Association I, 6.5%, 2/15/28 17,299 26,665 Government National Mortgage Association I, 6.5%, 2/15/29 31,052 31,007 Government National Mortgage Association I, 6.5%, 2/15/32 35,382 29,558 Government National Mortgage Association I, 6.5%, 2/15/32 35,415 22,246 Government National Mortgage Association I, 6.5%, 2/15/32 26,331 10,395 Government National Mortgage Association I, 6.5%, 2/15/32 11,862 19,353 Government National Mortgage Association I, 6.5%, 2/15/32 22,789 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 21 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 19,172 Government National Mortgage Association I, 6.5%, 3/15/29 $ 21,878 91,144 Government National Mortgage Association I, 6.5%, 3/15/29 104,006 105,632 Government National Mortgage Association I, 6.5%, 3/15/32 121,859 12,065 Government National Mortgage Association I, 6.5%, 4/15/17 12,178 14,525 Government National Mortgage Association I, 6.5%, 4/15/28 16,575 81,371 Government National Mortgage Association I, 6.5%, 4/15/28 92,854 96,179 Government National Mortgage Association I, 6.5%, 4/15/32 113,563 7,858 Government National Mortgage Association I, 6.5%, 4/15/32 8,967 17,496 Government National Mortgage Association I, 6.5%, 4/15/32 20,365 50,614 Government National Mortgage Association I, 6.5%, 4/15/33 57,762 6,709 Government National Mortgage Association I, 6.5%, 5/15/29 7,656 41,284 Government National Mortgage Association I, 6.5%, 5/15/31 47,110 19,209 Government National Mortgage Association I, 6.5%, 5/15/32 22,852 8,291 Government National Mortgage Association I, 6.5%, 5/15/32 9,606 45,143 Government National Mortgage Association I, 6.5%, 5/15/32 51,513 6,237 Government National Mortgage Association I, 6.5%, 5/15/32 7,118 10,244 Government National Mortgage Association I, 6.5%, 6/15/17 10,272 12,061 Government National Mortgage Association I, 6.5%, 6/15/28 14,084 27,876 Government National Mortgage Association I, 6.5%, 6/15/29 31,810 8,409 Government National Mortgage Association I, 6.5%, 6/15/31 9,596 22,187 Government National Mortgage Association I, 6.5%, 6/15/32 25,318 17,463 Government National Mortgage Association I, 6.5%, 6/15/32 20,053 38,989 Government National Mortgage Association I, 6.5%, 7/15/31 44,491 The accompanying notes are an integral part of these financial statements. 22 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 10,714 Government National Mortgage Association I, 6.5%, 7/15/32 $ 12,226 9,380 Government National Mortgage Association I, 6.5%, 7/15/32 10,704 10,004 Government National Mortgage Association I, 6.5%, 8/15/28 11,415 36,782 Government National Mortgage Association I, 6.5%, 8/15/32 41,973 51,935 Government National Mortgage Association I, 6.5%, 8/15/32 59,622 24,174 Government National Mortgage Association I, 6.5%, 9/15/31 27,585 24,992 Government National Mortgage Association I, 6.5%, 9/15/32 30,113 45,668 Government National Mortgage Association I, 6.5%, 9/15/32 52,201 47,041 Government National Mortgage Association I, 6.5%, 9/15/32 53,912 8,400 Government National Mortgage Association I, 6.75%, 4/15/26 9,585 19,437 Government National Mortgage Association I, 7.0%, 1/15/28 21,864 144,044 Government National Mortgage Association I, 7.0%, 1/15/31 155,097 3,438 Government National Mortgage Association I, 7.0%, 10/15/16 3,448 12,871 Government National Mortgage Association I, 7.0%, 11/15/26 14,884 69,390 Government National Mortgage Association I, 7.0%, 11/15/29 79,325 8,735 Government National Mortgage Association I, 7.0%, 11/15/31 9,075 33,309 Government National Mortgage Association I, 7.0%, 12/15/30 34,366 41,446 Government National Mortgage Association I, 7.0%, 12/15/30 42,522 47,893 Government National Mortgage Association I, 7.0%, 12/15/30 57,536 27,246 Government National Mortgage Association I, 7.0%, 2/15/28 30,465 27,154 Government National Mortgage Association I, 7.0%, 3/15/28 30,298 58,941 Government National Mortgage Association I, 7.0%, 3/15/32 66,704 33,575 Government National Mortgage Association I, 7.0%, 4/15/28 37,477 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 23 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 29,235 Government National Mortgage Association I, 7.0%, 4/15/29 $ 32,600 15,464 Government National Mortgage Association I, 7.0%, 4/15/31 16,623 48,422 Government National Mortgage Association I, 7.0%, 4/15/32 55,156 68,625 Government National Mortgage Association I, 7.0%, 5/15/29 76,744 8,705 Government National Mortgage Association I, 7.0%, 5/15/31 9,126 28,550 Government National Mortgage Association I, 7.0%, 6/15/27 33,623 5,202 Government National Mortgage Association I, 7.0%, 6/15/29 5,243 36,971 Government National Mortgage Association I, 7.0%, 7/15/25 42,469 6,575 Government National Mortgage Association I, 7.0%, 7/15/28 6,632 29,934 Government National Mortgage Association I, 7.0%, 7/15/28 33,955 16,247 Government National Mortgage Association I, 7.0%, 7/15/29 18,645 28,202 Government National Mortgage Association I, 7.0%, 8/15/23 31,083 83,283 Government National Mortgage Association I, 7.0%, 9/15/24 97,190 42,292 Government National Mortgage Association I, 7.0%, 9/15/31 47,797 44,604 Government National Mortgage Association I, 7.5%, 10/15/23 50,193 57,934 Government National Mortgage Association I, 7.5%, 10/15/27 67,250 13,906 Government National Mortgage Association I, 7.5%, 10/15/29 15,869 4,557 Government National Mortgage Association I, 7.5%, 12/15/25 4,750 24,471 Government National Mortgage Association I, 7.5%, 2/15/27 27,722 16,938 Government National Mortgage Association I, 7.5%, 2/15/31 17,699 10,370 Government National Mortgage Association I, 7.5%, 3/15/23 11,365 44,616 Government National Mortgage Association I, 7.5%, 3/15/27 54,218 7,955 Government National Mortgage Association I, 7.5%, 3/15/31 8,314 The accompanying notes are an integral part of these financial statements. 24 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 27,577 Government National Mortgage Association I, 7.5%, 4/15/23 $ 27,960 1,753 Government National Mortgage Association I, 7.5%, 6/15/24 1,825 17,697 Government National Mortgage Association I, 7.5%, 6/15/29 20,257 11,510 Government National Mortgage Association I, 7.5%, 8/15/25 11,858 1,142 Government National Mortgage Association I, 7.5%, 8/15/29 1,156 2,996 Government National Mortgage Association I, 7.5%, 8/15/29 3,081 6,952 Government National Mortgage Association I, 7.5%, 9/15/25 7,855 3,889 Government National Mortgage Association I, 7.5%, 9/15/25 3,903 66,938 Government National Mortgage Association I, 7.5%, 9/15/29 70,230 38,264 Government National Mortgage Association I, 8.25%, 5/15/20 41,897 2,126 Government National Mortgage Association I, 8.5%, 8/15/21 2,136 9,510 Government National Mortgage Association I, 9.0%, 1/15/20 9,715 1,289 Government National Mortgage Association I, 9.0%, 12/15/19 1,409 2,303 Government National Mortgage Association I, 9.0%, 6/15/22 2,416 292 Government National Mortgage Association I, 9.0%, 9/15/21 323 188,396 Government National Mortgage Association II, 4.0%, 10/20/44 200,172 36,906 Government National Mortgage Association II, 5.0%, 1/20/20 39,452 101,036 Government National Mortgage Association II, 5.0%, 12/20/18 107,172 69,135 Government National Mortgage Association II, 5.0%, 2/20/19 73,325 236,588 Government National Mortgage Association II, 5.5%, 10/20/37 265,556 68,482 Government National Mortgage Association II, 5.75%, 4/20/33 76,740 155,867 Government National Mortgage Association II, 5.75%, 6/20/33 174,652 29,210 Government National Mortgage Association II, 5.9%, 1/20/28 32,787 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 25 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 57,749 Government National Mortgage Association II, 5.9%, 11/20/27 $ 64,269 109,569 Government National Mortgage Association II, 5.9%, 7/20/28 120,922 119,846 Government National Mortgage Association II, 6.0%, 1/20/33 138,177 29,103 Government National Mortgage Association II, 6.0%, 10/20/31 33,218 138,645 Government National Mortgage Association II, 6.0%, 10/20/33 159,514 44,823 Government National Mortgage Association II, 6.0%, 12/20/18 46,616 79,999 Government National Mortgage Association II, 6.0%, 6/20/34 91,713 10,766 Government National Mortgage Association II, 6.0%, 7/20/17 11,070 25,495 Government National Mortgage Association II, 6.0%, 7/20/19 26,671 90,744 Government National Mortgage Association II, 6.45%, 1/20/33 103,538 49,179 Government National Mortgage Association II, 6.45%, 11/20/32 56,096 51,209 Government National Mortgage Association II, 6.45%, 7/20/32 58,414 33,173 Government National Mortgage Association II, 6.5%, 1/20/24 37,884 56,375 Government National Mortgage Association II, 6.5%, 10/20/32 67,889 70,519 Government National Mortgage Association II, 6.5%, 3/20/34 85,389 17,833 Government National Mortgage Association II, 6.5%, 4/20/31 21,240 12,979 Government National Mortgage Association II, 6.5%, 6/20/31 15,293 61,224 Government National Mortgage Association II, 6.5%, 8/20/28 71,987 14,519 Government National Mortgage Association II, 7.0%, 1/20/31 17,708 13,255 Government National Mortgage Association II, 7.0%, 11/20/31 15,974 9,634 Government National Mortgage Association II, 7.0%, 2/20/29 11,633 6,896 Government National Mortgage Association II, 7.0%, 3/20/31 8,430 13,190 Government National Mortgage Association II, 7.0%, 5/20/26 15,458 The accompanying notes are an integral part of these financial statements. 26 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 27,436 Government National Mortgage Association II, 7.0%, 6/20/28 $ 32,862 32,938 Government National Mortgage Association II, 7.0%, 7/20/31 40,304 26,138 Government National Mortgage Association II, 7.0%, 8/20/27 30,928 8,379 Government National Mortgage Association II, 7.5%, 12/20/30 10,414 13,766 Government National Mortgage Association II, 7.5%, 5/20/30 15,795 4,584 Government National Mortgage Association II, 7.5%, 6/20/30 5,694 14,171 Government National Mortgage Association II, 7.5%, 7/20/30 17,519 14,727 Government National Mortgage Association II, 7.5%, 8/20/30 18,310 11,819 Government National Mortgage Association II, 8.0%, 3/20/30 14,879 28,674 Government National Mortgage Association II, 8.0%, 4/20/30 36,132 56 Government National Mortgage Association II, 8.0%, 5/20/25 63 15,349 Government National Mortgage Association II, 8.0%, 5/20/30 19,306 18,023 Government National Mortgage Association II, 8.0%, 6/20/30 22,770 2,783 Government National Mortgage Association II, 9.0%, 11/20/24 2,796 2,879 Government National Mortgage Association II, 9.0%, 3/20/22 2,878 406 Government National Mortgage Association II, 9.0%, 4/20/22 406 1,610 Government National Mortgage Association II, 9.0%, 9/20/21 1,768 600,000 Private Export Funding Corp., 2.25%, 12/15/17 615,118 1,300,000 Private Export Funding Corp., 2.8%, 5/15/22 1,323,912 3,420,000 Private Export Funding Corp., 4.3%, 12/15/21 3,838,256 3,000,000 Private Export Funding Corp., 4.375%, 3/15/19 3,308,061 1,655,000 Private Export Funding Corp., 5.45%, 9/15/17 1,809,327 1,118,085 Tennessee Valley Authority, 4.929%, 1/15/21 1,234,247 800,000 Tennessee Valley Authority, 5.5%, 6/15/38 1,021,658 1,500,000 U.S. Treasury Bonds, 3.0%, 5/15/42 1,522,500 2,500,000 U.S. Treasury Bonds, 4.25%, 5/15/39 3,114,648 1,650,000 U.S. Treasury Bonds, 4.5%, 5/15/38 2,130,434 The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 27 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------ Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------ U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 2,503,775 U.S. Treasury Inflation Indexed Bonds, 0.125%, 7/15/24 $ 2,431,596 465,000 0.12 U.S. Treasury Note, Floating Rate Note, 7/31/16 465,094 3,000,000 U.S. Treasury Notes, 0.625%, 5/31/17 2,998,827 5,200,000 U.S. Treasury Notes, 1.875%, 8/31/17 5,324,706 3,500,000 U.S. Treasury Notes, 2.625%, 11/15/20 3,669,533 ------------------------------------------------------------------------------------------ TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $75,195,130) $ 78,257,440 ------------------------------------------------------------------------------------------ FOREIGN GOVERNMENT BONDS -- 5.8% 3,000,000 Israel Government AID Bond, 5.5%, 4/26/24 $ 3,676,848 2,000,000 Israel Government AID Bond, 5.5%, 9/18/23 2,436,186 ------------------------------------------------------------------------------------------ TOTAL FOREIGN GOVERNMENT BONDS (Cost $5,856,680) $ 6,113,034 ------------------------------------------------------------------------------------------ MUNICIPAL BONDS -- 0.6% (d) Municipal General -- 0.3% 125,000 Virginia Commonwealth Transportation Board, 4.0%, 5/15/31 $ 131,624 125,000 Virginia Commonwealth Transportation Board, 4.0%, 5/15/32 131,136 ------------- $ 262,760 ------------------------------------------------------------------------------------------ Higher Municipal Education -- 0.1% 100,000 New Jersey Educational Facilities Authority, 4.0%, 7/1/45 $ 104,242 ------------------------------------------------------------------------------------------ Municipal School District -- 0.1% 100,000 Frisco Independent School District, 4.0%, 8/15/40 (e) $ 101,988 50,000 Frisco Independent School District, 4.0%, 8/15/45 (e) 50,793 ------------- $ 257,023 ------------------------------------------------------------------------------------------ Municipal Obligation -- 0.1% 150,000 State of Texas, 4.0%, 10/1/44 (e) $ 154,881 ------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (Cost $671,430) $ 674,664 ------------------------------------------------------------------------------------------ TOTAL INVESTMENT IN SECURITIES -- 98.7% (Cost $100,267,176) (a) $ 104,369,439 ------------------------------------------------------------------------------------------ OTHER ASSETS & LIABILITIES -- 1.3% $ 1,421,190 ------------------------------------------------------------------------------------------ TOTAL NET ASSETS -- 100.0% $ 105,790,629 ========================================================================================== The accompanying notes are an integral part of these financial statements. 28 Pioneer Government Income Fund | Annual Report | 7/31/15 (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At July 31, 2015, the value of these securities amounted to $1,570,473 or 1.5% of total net assets. REMICS Real estate mortgage investment conduits. (a) At July 31, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $100,483,012 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $4,341,580 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (455,153) ---------- Net unrealized appreciation $3,886,427 ========== (b) Debt obligation with a variable interest rate. Rate shown is rate at end of period. (c) Security issued with a zero coupon. Income is recognized through accretion of discount. (d) Consists of Revenue Bonds unless otherwise indicated. (e) Represents a General Obligation Bond. Purchases and sales of securities (excluding temporary cash investments) for the year ended July 31, 2015 aggregated $29,682,955 and $39,112,663, respectively. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) as Level 3. See Notes to Financial Statements -- Note 1A. The following is a summary of the inputs used as of July 31, 2015, in valuing the Fund's assets: --------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total --------------------------------------------------------------------------------------------- Asset Backed Securities $ -- $ 4,348,856 $ -- $ 4,348,856 Collateralized Mortgage Obligations -- 14,474,958 -- 14,474,958 Corporate Bonds -- 500,487 -- 500,487 U.S. Government and Agency Obligations -- 78,257,440 -- 78,257,440 Foreign Government Bonds -- 6,113,034 -- 6,113,034 Municipal Bonds -- 674,664 -- 674,664 --------------------------------------------------------------------------------------------- Total $ -- $104,369,439 $ -- $104,369,439 ============================================================================================= Other Financial Instruments Net unrealized appreciation on futures contracts $86,203 $ -- $ -- $ 86,203 --------------------------------------------------------------------------------------------- Total Other Financial Instruments $86,203 $ -- $ -- $ 86,203 ============================================================================================= During the year ended July 31, 2015, there were no transfers between Levels 1, 2 and 3. The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 29 Schedule of Investments | 7/31/15 (continued) The following is a summary of the fair valuation of certain Fund's assets and liabilities as of July 31, 2015. --------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total --------------------------------------------------------------------------------------------- Assets: Futures collateral $ -- $286,270 $ -- $286,270 Liabilities: Variation margin for futures contracts (52,687) -- -- (52,687) --------------------------------------------------------------------------------------------- Total $(52,687) $286,270 $ -- $233,583 ============================================================================================= The accompanying notes are an integral part of these financial statements. 30 Pioneer Government Income Fund | Annual Report | 7/31/15 Statement of Assets and Liabilities | 7/31/15 ASSETS: Investment in securities (cost $100,267,176) $104,369,439 Cash 704,686 Futures collateral 286,270 Receivables -- Fund shares sold 32,367 Interest 587,583 Net unrealized appreciation on futures contracts 86,203 Other assets 66,986 ------------------------------------------------------------------------------------------ Total assets $106,133,534 ========================================================================================== LIABILITIES: Payables -- Fund shares repurchased $ 137,975 Trustee fees 706 Variation margin 52,687 Due to affiliates 44,975 Accrued expenses 106,562 ------------------------------------------------------------------------------------------ Total liabilities $ 342,905 ========================================================================================== NET ASSETS: Paid-in capital $111,355,402 Distributions in excess of net investment income (176,497) Accumulated net realized loss on investments and futures contracts (9,576,742) Net unrealized appreciation on investments 4,102,263 Net unrealized appreciation on futures contracts 86,203 ------------------------------------------------------------------------------------------ Total net assets $105,790,629 ========================================================================================== NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $89,273,118/9,508,510 shares) $ 9.39 Class C (based on $12,043,067/1,282,279 shares) $ 9.39 Class Y (based on $4,474,444/476,122 shares) $ 9.40 MAXIMUM OFFERING PRICE: Class A ($9.39 (divided by) 95.5%) $ 9.83 ========================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 31 Statement of Operations For the Year Ended 7/31/15 INVESTMENT INCOME: Interest $3,431,064 --------------------------------------------------------------------------------------------- Total investment income $3,431,064 --------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 556,947 Transfer agent fees and expenses Class A 134,438 Class B* 4,455 Class C 12,662 Class Y 738 Distribution fees Class A 230,421 Class B* 6,385 Class C 134,482 Shareholder communications expense 143,706 Administrative reimbursement 48,479 Custodian fees 40,255 Registration fees 61,375 Professional fees 67,777 Printing expense 31,599 Fees and expenses of nonaffiliated Trustees 6,796 Pricing fees 41,661 Miscellaneous 39,762 --------------------------------------------------------------------------------------------- Total expenses $1,561,938 ============================================================================================= Net investment income $1,869,126 --------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FUTURES CONTRACTS: Net realized gain (loss) on: Investments $ 209,984 Futures contracts (672,887) $ (462,903) --------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ 519,863 Futures contracts (21,313) $ 498,550 --------------------------------------------------------------------------------------------- Net gain on investments and futures contracts $ 35,647 --------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $1,904,773 ============================================================================================= * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. 32 Pioneer Government Income Fund | Annual Report | 7/31/15 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------- Year Ended Year Ended 7/31/15 7/31/14 -------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 1,869,126 $ 3,357,783 Net realized loss on investments and futures contracts (462,903) (4,775,069) Change in net unrealized appreciation (depreciation) on investments and futures contracts 498,550 3,858,890 -------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 1,904,773 $ 2,441,604 -------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.20 and $0.44 per share, respectively) $ (1,974,181) $ (4,602,730) Class B* ($0.03 and $0.34 per share, respectively) (6,643) (107,545) Class C ($0.13 and $0.38 per share, respectively) (189,668) (623,375) Class Y ($0.23 and $0.48 per share, respectively) (127,229) (523,818) -------------------------------------------------------------------------------------------- Total distributions to shareowners $ (2,297,721) $ (5,857,468) -------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale or exchange of shares $ 23,282,963 $ 19,165,020 Reinvestment of distributions 2,212,993 4,972,391 Cost of shares repurchased (36,408,126) (49,877,652) -------------------------------------------------------------------------------------------- Net decrease in net assets resulting from Fund share transactions $ (10,912,170) $(25,740,241) -------------------------------------------------------------------------------------------- Net decrease in net assets $ (11,305,118) $(29,156,105) NET ASSETS: Beginning of year 117,095,747 146,251,852 -------------------------------------------------------------------------------------------- End of year $ 105,790,629 $117,095,747 -------------------------------------------------------------------------------------------- Distributions in excess of net investment income $ (176,497) $ (379,204) ============================================================================================ * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 33 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------------ ' 15 Shares '15 Amount '14 Shares '14 Amount ------------------------------------------------------------------------------------------------ Class A Shares sold 1,885,188 $ 17,800,006 1,314,683 $ 12,471,203 Reinvestment of distributions 206,177 1,947,677 424,193 4,016,128 Less shares repurchased (2,231,395) (21,057,191) (3,363,699) (32,033,970) ------------------------------------------------------------------------------------------------ Net decrease (140,030) $ (1,309,508) (1,624,823) $(15,546,639) ================================================================================================ Class B* Shares sold or exchanged 81 $ 2,319 1,307 $ 13,715 Reinvestment of distributions 797 6,643 10,129 95,816 Less shares repurchased (251,008) (2,362,723) (165,758) (1,579,633) ------------------------------------------------------------------------------------------------ Net decrease (250,130) $ (2,353,761) (154,322) $ (1,470,102) ================================================================================================ Class C Shares sold 396,429 $ 3,747,195 223,502 $ 2,128,412 Reinvestment of distributions 13,912 131,444 40,663 384,816 Less shares repurchased (569,714) (5,384,080) (809,347) (7,710,044) ------------------------------------------------------------------------------------------------ Net decrease (159,373) $ (1,505,441) (545,182) $ (5,196,816) ================================================================================================ Class Y Shares sold 182,373 $ 1,733,443 479,348 $ 4,551,690 Reinvestment of distributions 14,620 127,229 50,177 475,631 Less shares repurchased (804,736) (7,604,132) (897,536) (8,554,005) ------------------------------------------------------------------------------------------------ Net decrease (607,743) $ (5,743,460) (368,011) $ (3,526,684) ================================================================================================ * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. 34 Pioneer Government Income Fund | Annual Report | 7/31/15 Financial Highlights ------------------------------------------------------------------------------------------------------------------ Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 ------------------------------------------------------------------------------------------------------------------ Class A Net asset value, beginning of period $ 9.42 $ 9.67 $ 10.33 $ 10.07 $ 10.15 ------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.16 $ 0.26 $ 0.38 $ 0.27 $ 0.32 Net realized and unrealized gain (loss) on investments 0.01 (0.07) (0.69) 0.33 (0.03) ------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.17 $ 0.19 $ (0.31) $ 0.60 $ 0.29 ------------------------------------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.20) $ (0.44) $ (0.35) $ (0.34) $ (0.37) ------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.03) $ (0.25) $ (0.66) $ 0.26 $ (0.08) ------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.39 $ 9.42 $ 9.67 $ 10.33 $ 10.07 =================================================================================================================== Total return* 1.83% 2.07% (3.04)% 6.03% 2.95% Ratio of net expenses to average net assets 1.33% 1.28% 1.22% 1.14% 1.17% Ratio of net investment income (loss) to average net assets 1.75% 2.70% 3.72% 2.57% 3.29% Portfolio turnover rate 27% 16% 19% 67% 19% Net assets, end of period (in thousands) $89,273 $90,932 $109,054 $152,020 $131,758 =================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 35 Financial Highlights (continued) ---------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 ---------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 9.42 $ 9.68 $ 10.34 $ 10.08 $ 10.15 ---------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.10 $ 0.20 $ 0.32 $ 0.22 $ 0.25 Net realized and unrealized gain (loss) on investments 0.00(a) (0.08) (0.69) 0.31 (0.02) ---------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.10 $ 0.12 $ (0.37) $ 0.53 $ 0.23 ---------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.13) $ (0.38) $ (0.29) $ (0.27) $ (0.30) ---------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.03) $ (0.26) $ (0.66) $ 0.26 $ (0.07) ---------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 9.39 $ 9.42 $ 9.68 $ 10.34 $ 10.08 ================================================================================================================ Total return* 1.09% 1.24% (3.68)% 5.29% 2.32% Ratio of net expenses to average net assets 2.02% 2.02% 1.90% 1.83% 1.87% Ratio of net investment income (loss) to average net assets 1.06% 1.98% 3.10% 1.73% 2.61% Portfolio turnover rate 27% 16% 19% 67% 19% Net assets, end of period (in thousands) $12,043 $13,586 $19,225 $50,230 $26,113 ================================================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. (a) Amount rounds to less than $0.01 or $(0.01) per share. The accompanying notes are an integral part of these financial statements. 36 Pioneer Government Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------------ Year Year Year Year Year Ended Ended Ended Ended Ended 7/31/15 7/31/14 7/31/13 7/31/12 7/31/11 ------------------------------------------------------------------------------------------------------------------ Class Y Net asset value, beginning of period $ 9.43 $ 9.68 $ 10.34 $ 10.07 $ 10.16 ------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.16 $ 0.33 $ 0.39 $ 0.33 $ 0.36 Net realized and unrealized gain (loss) on investments 0.04 (0.10) (0.65) 0.32 (0.03) ------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.20 $ 0.23 $ (0.26) $ 0.65 $ 0.33 ------------------------------------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.23) $ (0.48) $ (0.40) $ (0.38) $ (0.42) ------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.03) $ (0.25) $ (0.66) $ 0.27 $ (0.09) ------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.40 $ 9.43 $ 9.68 $ 10.34 $ 10.07 ================================================================================================================== Total return* 2.17% 2.48% (2.65)% 6.56% 3.32% Ratio of net expenses to average net assets 0.96% 0.92% 0.85% 0.74% 0.69% Ratio of net investment income (loss) to average net assets 2.11% 3.03% 3.80% 2.83% 3.85% Portfolio turnover rate 27% 16% 19% 67% 19% Net assets, end of period (in thousands) $ 4,474 $10,219 $14,057 $13,092 $ 6,496 ================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. The accompanying notes are an integral part of these financial statements. Pioneer Government Income Fund | Annual Report | 7/31/15 37 Notes to Financial Statements | 7/31/15 1. Organization and Significant Accounting Policies Pioneer Government Income Fund (the Fund) is one of three portfolios comprising Pioneer Series Trust IV, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's investment objective is to seek current income as is consistent with preservation of capital. The Fund offers three classes of shares designated as Class A, Class C and Class Y shares. Class C shares were first publicly offered on September 23, 2005. The Fund ceased to offer Class B shares on November 10, 2014. Class B shares were converted to Class A shares as of the close of business on November 10, 2014. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board of Trustees the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gains and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements. 38 Pioneer Government Income Fund | Annual Report | 7/31/15 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. Securities for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At July 31, 2015, there were no securities that were valued using fair value methods (other than securities valued using prices supplied by independent pricing services or broker-dealers). Pioneer Government Income Fund | Annual Report | 7/31/15 39 B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Interest income, including interest on income bearing cash accounts, is recorded on the accrual basis. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of July 31, 2015, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by Federal and State tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. At July 31, 2015, the Fund reclassified $2,465,526 to decrease paid in capital, $631,302 to decrease undistributed net investment loss, and $1,834,224 to decrease accumulated net realized loss on investments and future contracts to reflect permanent book/tax differences. These adjustments have no impact on net assets or the results of operations. 40 Pioneer Government Income Fund | Annual Report | 7/31/15 At July 31, 2015, the Fund was permitted to carry forward indefinitely $844,011 of short-term losses and $5,845,546 of long-term losses under the Regulated Investment Company Modernization Act of 2010 without limitation. Additionally, at July 31, 2015, the Fund had a net capital loss carryforward of $2,793,238 of which the amount will expire in 2016 if not utilized. During the year ended July 31, 2015, a capital loss carryforward of $2,465,526 was utilized to offset net realized gains by the fund. The tax character of distributions paid during the year ended July 31, 2015 and July 31, 2014 was as follows: -------------------------------------------------------------------------------- 2015 2014 -------------------------------------------------------------------------------- Distributions paid from: Ordinary income $2,297,721 $5,857,468 -------------------------------------------------------------------------------- Total $2,297,721 $5,857,468 ================================================================================ The following shows the components of distributable earnings on a federal income tax basis at July 31, 2015: -------------------------------------------------------------------------------- 2015 -------------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 31,595 Capital loss carryforward (9,482,795) Net unrealized appreciation 3,886,427 -------------------------------------------------------------------------------- Total $ (5,564,773) ================================================================================ The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax deferral of losses on wash sales, the tax treatment of premium and amortization and the mark-to-market on futures contracts. D. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $5,552 in underwriting commissions on the sale of Class A shares during the year ended July 31, 2015. E. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Pioneer Government Income Fund | Annual Report | 7/31/15 41 Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C and Class Y shares can reflect different transfer agent and distribution expense rates. F. Risks The Fund may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed- income securities. Mortgage-backed securities are also subject to prepayments. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. G. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. PIM is responsible for determining that the value of the collateral remains at least equal to the repurchase price. At July 31, 2015, the Fund had no open repurchase agreements. H. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at July 31, 2015 was $286,270. Subsequent payments for futures contracts ("variation margin") are paid or 42 Pioneer Government Income Fund | Annual Report | 7/31/15 received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rates and counterparty risks, which may exceed the amounts recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. The average value of contracts open for the year ended July 31, 2015 was $(9,931,887). At July 31, 2015, open futures contracts were as follows. ----------------------------------------------------------------------------------------- Number of Unrealized Contracts Settlement Appreciation/ Type Long/(Short) Month/Year Value (Depreciation) ----------------------------------------------------------------------------------------- US Long Bond (CBT) (71) 9/15 $ (11,071,563) $ (118,703) US 10 Year Note (CBT) (47) 9/15 (5,989,562) (15,422) US 5 Year Note (CBT) (10) 9/15 (1,198,437) (5,703) US 2 Year Note (CBT) 17 9/15 3,724,062 8,500 US Ultra Bond (CBT) 46 9/15 7,338,437 217,531 ----------------------------------------------------------------------------------------- Total $ (7,197,063) $ 86,203 ----------------------------------------------------------------------------------------- 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate of 0.50% of the Fund's average daily net assets up to $1 billion and 0.45% on assets over $1 billion. For the year ended July 31, 2015, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.50% of the Fund's average daily net assets. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $3,027 in management fees, administrative costs and certain other reimbursements payable to PIM at July 31, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. Pioneer Government Income Fund | Annual Report | 7/31/15 43 In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the year ended July 31, 2015, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $117,709 Class B 2,278 Class C 16,332 Class Y 7,387 -------------------------------------------------------------------------------- Total $143,706 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $40,059 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at July 31, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $1,889 in distribution fees payable to PFD at July 31, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to PFD. For the year ended July 31, 2015, CDSCs in the amount of $1,571 were paid to PFD. 44 Pioneer Government Income Fund | Annual Report | 7/31/15 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS, which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the year ended July 31, 2015, the Fund's expenses were not reduced under such arrangements. 6. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of July 31, 2015 were as follows: ---------------------------------------------------------------------------------------------------- Derivatives Not Accounted for as Asset Derivatives Liabilities Derivatives Hedging Instruments --------------------------------------------------------------------- Under Accounting Statement of Value Statement of Value Standards Codification Assets and Liabilities Assets and Liabilities (ASC) 815 Location Location ---------------------------------------------------------------------------------------------------- Futures contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts $86,203 futures contracts $ -- ---------------------------------------------------------------------------------------------------- Total $86,203 $ -- ==================================================================================================== The effect of derivative instruments on the Statement of Operations for the year ended July 31, 2015 was as follows: ---------------------------------------------------------------------------------------------------- Change in Derivatives Not Unrealized Accounted for as Realized Appreciation/ Hedging Instruments Gain/(Loss) (Depreciation) Under Accounting Location of Gain/(Loss) on Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ---------------------------------------------------------------------------------------------------- Futures contracts Net realized gain (loss) on futures contracts $(672,887) Futures contracts Change in net unrealized appreciation (depreciation) on futures contracts $(21,313) 7. Conversion of Class B Shares As of the close of business on November 10, 2014, all outstanding Class B shares of the Fund were converted to Class A shares. Pioneer Government Income Fund | Annual Report | 7/31/15 45 Report of Independent Registered Public Accounting Firm To the Board of Trustees of Pioneer Series Trust IV and the Shareowners of Pioneer Government Income Fund: -------------------------------------------------------------------------------- We have audited the accompanying statement of assets and liabilities of Pioneer Government Income Fund (the "Fund"), one of the portfolios constituting Pioneer Series Trust IV (the "Trust"), including the schedule of investments, as of July 31, 2015, and the related statement of operations for the year then ended and the statements of changes in net assets and the financial highlights for each of the two years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The financial highlights for the years ended July 31, 2013, 2012, and 2011 were audited by other auditors. Those auditors expressed an unqualified opinion on those financial statements and financial highlights in their report dated September 24, 2013. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Fund is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2015, by correspondence with the custodian, brokers and agent banks; where replies were not received from brokers and agent banks, we performed other auditing procedures. We believe that our audits provides a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Pioneer Government Income Fund as of July 31, 2015, the results of its operations for the year then ended, and the changes in its net assets and the financial highlights for each of the two years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. /s/ Deloitte & Touche LLP Boston, Massachusetts September 24, 2015 46 Pioneer Government Income Fund | Annual Report | 7/31/15 ADDITIONAL INFORMATION (unaudited) The percentage of the Fund's ordinary income distributions that are exempt from nonresident alien (NRA) tax withholding resulting from qualified interest income was 92.1%. PIM, the Fund's investment adviser, is currently an indirect, wholly-owned subsidiary of UniCredit. On April 23, 2015, UniCredit announced that it signed a preliminary and exclusive agreement with Banco Santander and affiliates of Warburg Pincus and General Atlantic (the "Private Equity Firms") with respect to Pioneer Investments ("Pioneer") and Santander Asset Management ("SAM") (the "Transaction"). The Transaction, as described in the UniCredit announcement, will entail the establishment of a holding company, with the name Pioneer Investments, to be owned by UniCredit (50%) and the Private Equity Firms (50% between them). The holding company will control Pioneer's U.S. operations, including the Adviser. The holding company also will own 66.7% of Pioneer's and SAM's combined operations outside the U.S., while Banco Santander will own directly the remaining 33.3% stake. The completion of the Transaction is subject to the signing of a definitive agreement, as well as certain regulatory and corporate approvals, and other conditions. Under the Investment Company Act of 1940, completion of the Transaction will cause the Fund's investment advisory agreement with the Adviser to terminate. In connection with the Transaction, the Fund's Board of Trustees will be asked to approve a new investment advisory agreement for the Fund. If approved by the Board, the Fund's new investment advisory agreement will be submitted to the shareholders of the Fund for their approval. Pioneer Government Income Fund | Annual Report | 7/31/15 47 Trustees, Officers and Service Providers Investment Adviser Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Independent Registered Public Accounting Firm Deloitte & Touche LLP Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. Trustees and Officers The Fund's Trustees and officers are listed below, together with their principal occupations during at least the past five years. Trustees who are interested persons of the Fund within the meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are not interested persons of the Fund are referred to as Independent Trustees. Each of the Trustees serves as a Trustee of each of the 51 U.S. registered investment portfolios for which Pioneer serves as investment adviser (the "Pioneer Funds"). The address for all Trustees and all officers of the Fund is 60 State Street, Boston, Massachusetts 02109. The Statement of Additional Information of the Fund includes additional information about the Trustees and is available, without charge, upon request, by calling 1-800-225-6292. 48 Pioneer Government Income Fund | Annual Report | 7/31/15 Independent Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Thomas J. Perna (64) Trustee since Private investor (2004 - 2008 and 2013 - Director, Broadridge Financial Chairman of the Board and 2006. Serves until present); Chairman (2008 - 2013) and Chief Solutions, Inc. (investor Trustee a successor Executive Officer (2008 - 2012), Quadriserv, Inc. communications and securities trustee is elected (technology products for securities lending processing provider for or earlier industry); and Senior Executive Vice President, financial services industry) retirement or The Bank of New York (financial and securities (2009 - present); Director, removal. services) (1986 - 2004) Quadriserv, Inc. (2005 - 2013); and Commissioner, New Jersey State Civil Service Commission (2011 - present) ------------------------------------------------------------------------------------------------------------------------------------ David R. Bock (71) Trustee since Managing Partner, Federal City Capital Advisors Director of New York Mortgage Trustee 2005. Serves until (corporate advisory services company) (1997 - Trust(publicly-traded mortgage a successor 2004 and 2008 - present); Interim Chief Executive REIT) (2004 - 2009, 2012 - trustee is elected Officer, Oxford Analytica, Inc. (privately-held present); Director of The or earlier research and consulting company) (2010); Executive Swiss Helvetia Fund, Inc. retirement or Vice President and Chief Financial Officer, (closed-end fund) (2010 - removal. I-trax, Inc. (publicly traded health care present); Director of Oxford services company) (2004 - 2007); and Executive Analytica, Inc. (2008 - Vice President and Chief Financial Officer, present); and Director of Pedestal Inc. (internet-based mortgage trading Enterprise Community company) (2000 - 2002); Private consultant (1995 Investment, Inc. - 1997), Managing Director, (privately-held affordable Lehman Brothers (investment banking firm) (1992 - housing finance company) (1985 1995); and Executive, The World Bank (1979 - - 2010) 1992) ------------------------------------------------------------------------------------------------------------------------------------ Benjamin M. Friedman (70) Trustee since William Joseph Maier Professor of Political Trustee, Mellon Institutional Trustee 2008. Serves until Economy, Harvard University (1972 - present) Funds Investment Trust and a successor Mellon Institutional Funds trustee is elected Master Portfolio (oversaw 17 or earlier portfolios in fund complex) retirement or (1989-2008) removal. ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Government Income Fund | Annual Report | 7/31/15 49 Independent Trustees (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Held by Position Held with the Fund Length of Service Principal Occupation Trustee ------------------------------------------------------------------------------------------------------------------------------------ Margaret B.W. Graham (68) Trustee since Founding Director, Vice President and Corporate None Trustee 2005. Serves until Secretary, The Winthrop Group, Inc. (consulting a successor firm) (1982 - present); Desautels Faculty of trustee is elected Management, McGill University (1999 - present); or earlier and Manager of Research Operations and retirement or Organizational Learning, Xerox PARC, Xerox's removal. advance research center (1990 - 1994) ------------------------------------------------------------------------------------------------------------------------------------ Marguerite A. Piret (67) Trustee since President and Chief Executive Officer, Newbury, Director of New America High Trustee 2005. Serves until Piret & Company, Inc. (investment banking firm) Income Fund, Inc. (closed-end a successor (1981 - present) investment company) (2004 - trustee is elected present); and Member, Board of or earlier Governors, Investment Company retirement or Institute (2000 - 2006) removal. ------------------------------------------------------------------------------------------------------------------------------------ Fred J. Ricciardi (68) Trustee since Consultant (investment company services) (2012 - None Trustee 2014. Serves until present); Executive Vice President, BNY Mellon a successor (financial and investment company services) (1969 trustee is elected -2012); Director, BNY International Financing or earlier Corp. (financial services) (2002 - 2012); and retirement or Director, Mellon Overseas Investment Corp. removal. (financial services) (2009 - 2012) ------------------------------------------------------------------------------------------------------------------------------------ 50 Pioneer Government Income Fund | Annual Report | 7/31/15 Interested Trustee ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Kenneth J. Taubes (57)* Trustee since 2014. Director and Executive Vice President (since 2008) and None Trustee Serves until a Chief Investment Officer, U.S. (since 2010) of PIM-USA; successor trustee is Executive Vice President of Pioneer (since 2008); elected or earlier Executive Vice President of Pioneer Institutional Asset retirement or Management, Inc. (since 2009); and Portfolio Manager of removal. Pioneer (since 1999) ------------------------------------------------------------------------------------------------------------------------------------ * Mr. Taubes is an Interested Trustee because he is an officer of the Fund's investment adviser and certain of its affiliates. Pioneer Government Income Fund | Annual Report | 7/31/15 51 Advisory Trustee ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Lorraine Monchak (59)** Advisory Trustee Chief Investment Officer, 1199 SEIU Funds (healthcare None Advisory Trustee since 2014. workers union pension funds) (2001 - present); Vice President - International Investments Group, American International Group, Inc. (insurance company) (1993 - 2001); Vice President Corporate Finance and Treasury Group, Citibank, N.A. (1980 - 1986 and 1990 - 1993); Vice President - Asset/Liability Management Group, Federal Farm Funding Corporation (government-sponsored issuer of debt securities) (1988 - 1990); Mortgage Strategies Group, Shearson Lehman Hutton, Inc. (investment bank) (1987 - 1988); and Mortgage Strategies Group, Drexel Burnham Lambert, Ltd. (investment bank) (1986 - 1987) ------------------------------------------------------------------------------------------------------------------------------------ ** Ms. Monchak is a non-voting advisory trustee. 52 Pioneer Government Income Fund | Annual Report | 7/31/15 Fund Officers ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Lisa M. Jones (53) Since 2014. Serves at Chair, Director, CEO and President of Pioneer None President and Chief the discretion of the Investment Management-USA (since September 2014); Executive Officer Board. Chair, Director, CEO and President of Pioneer Investment Management, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Funds Distributor, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Institutional Asset Management, Inc. (since September 2014); and Chair, Director, and CEO of Pioneer Investment Management Shareholder Services, Inc. (since September 2014); Managing Director, Morgan Stanley Investment Management (2010 - 2013); and Director of Institutional Business, CEO of International, Eaton Vance Management (2005 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Christopher J. Kelley (50) Since 2005. Serves at Vice President and Associate General Counsel of Pioneer None Secretary and Chief Legal the discretion of the since January 2008; Secretary and Chief Legal Officer of Officer Board. all of the Pioneer Funds since June 2010; Assistant Secretary of all of the Pioneer Funds from September 2003 to May 2010; and Vice President and Senior Counsel of Pioneer from July 2002 to December 2007 ------------------------------------------------------------------------------------------------------------------------------------ Carol B. Hannigan (54) Since 2010. Serves at Fund Governance Director of Pioneer since December 2006 None Assistant Secretary the discretion of the and Assistant Secretary of all the Pioneer Funds since Board. June 2010; Manager - Fund Governance of Pioneer from December 2003 to November 2006; and Senior Paralegal of Pioneer from January 2000 to November 2003 ------------------------------------------------------------------------------------------------------------------------------------ Thomas Reyes (52) Since 2010. Serves at Senior Counsel of Pioneer since May 2013 and Assistant None Assistant Secretary the discretion of the Secretary of all the Pioneer Funds since June 2010; and Board. Counsel of Pioneer from June 2007 to May 2013 ------------------------------------------------------------------------------------------------------------------------------------ Mark E. Bradley (55) Since 2008. Serves at Vice President - Fund Treasury of Pioneer; Treasurer of None Treasurer and Chief the discretion of the all of the Pioneer Funds since March 2008; Deputy Financial and Accounting Board. Treasurer of Pioneer from March 2004 to February 2008; Officer and Assistant Treasurer of all of the Pioneer Funds from March 2004 to February 2008 ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Government Income Fund | Annual Report | 7/31/15 53 Fund Officers (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Luis I. Presutti (50) Since 2005. Serves at Director - Fund Treasury of Pioneer; and Assistant None Assistant Treasurer the discretion of the Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ Gary Sullivan (57) Since 2005. Serves at Fund Accounting Manager - Fund Treasury of Pioneer; and None Assistant Treasurer the discretion of the Assistant Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ David F. Johnson (35) Since 2009. Serves at Fund Administration Manager - Fund Treasury of Pioneer None Assistant Treasurer the discretion of the since November 2008; Assistant Treasurer of all of the Board. Pioneer Funds since January 2009; and Client Service Manager - Institutional Investor Services at State Street Bank from March 2003 to March 2007 ------------------------------------------------------------------------------------------------------------------------------------ Jean M. Bradley (62) Chief Since 2010. Serves at Chief Compliance Officer of Pioneer and of all the None Compliance Officer the discretion of the Pioneer Funds since March 2010; Chief Compliance Officer Board. of Pioneer Institutional Asset Management, Inc. since January 2012; Chief Compliance Officer of Vanderbilt Capital Advisors, LLC since July 2012: Director of Adviser and Portfolio Compliance at Pioneer since October 2005; and Senior Compliance Officer for Columbia Management Advisers, Inc. from October 2003 to October 2005 ------------------------------------------------------------------------------------------------------------------------------------ Kelly O'Donnell (44) Since 2006. Serves at Director - Transfer Agency Compliance of Pioneer and None Anti-Money Laundering the discretion of the Anti-Money Laundering Officer of all the Pioneer Funds Officer Board. since 2006 ------------------------------------------------------------------------------------------------------------------------------------ 54 Pioneer Government Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Government Income Fund | Annual Report | 7/31/15 55 This page for your notes. 56 Pioneer Government Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Government Income Fund | Annual Report | 7/31/15 57 This page for your notes. 58 Pioneer Government Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Government Income Fund | Annual Report | 7/31/15 59 This page for your notes. 60 Pioneer Government Income Fund | Annual Report | 7/31/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 19422-09-0915 Pioneer Multi-Asset Income Fund -------------------------------------------------------------------------------- Annual Report | July 31, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A PMAIX Class C PMACX Class K PMFKX Class R PMFRX Class Y PMFYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 12 Prices and Distributions 13 Performance Update 14 Comparing Ongoing Fund Expenses 19 Schedule of Investments 21 Financial Statements 53 Notes to Financial Statements 62 Report of Independent Registered Public Accounting Firm 78 Trustees, Officers and Service Providers 80 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 1 President's Letter Dear Shareholder, In the second half of 2015, two main issues have been dominating the attention of global investors and policymakers alike, and shaping the current investment environment: The Federal Reserve System's (the Fed's) deliberations over when to begin normalizing interest rates in the U.S., and the increasing divergence in economic activity around the globe. As 2015 began, market expectations were that the Fed would likely begin raising interest rates by the middle of the year, but a sluggish gross domestic product report in the first calendar quarter as well as relatively benign inflation and wage growth contributed to the Fed's taking a more cautionary approach and delaying the start of its rate-hike cycle. At the same time, however, the U.S. labor market has continued its robust improvement, moving the Fed closer to declaring victory on one of its main monetary policy objectives -- full employment. Meanwhile, global economic activity has continued to diverge, with developed economies experiencing above-trend growth and most emerging markets economies lagging the rest of the world. The slower pace of economic activity in the emerging markets has been most evident in China, as the country's economy continues to undergo a long, potentially painful adjustment from investment-led growth to consumption-oriented growth. This divergence in global economic cycles is likely to continue for some time, and we would expect an increased level of volatility as global capital markets and policymakers adjust. Pioneer Investments believes that investors in today's environment can potentially benefit from the consistent and disciplined investment approach we have used since our founding in 1928. We focus on identifying value across global markets using proprietary research, careful risk management, and a long-term perspective. Our ongoing goal is to produce compelling returns consistent with the stated objectives of our investment products, and with our shareowners' expectations. We believe our shareowners can benefit from the experience and tenure of our investment teams as well as the insights generated from our extensive research process. 2 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 As always, and particularly during times of market uncertainty, we encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short-and long-term goals, and to implement such a plan in a disciplined manner. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 3 Portfolio Management Discussion | 7/31/15 In the following interview, portfolio managers Marco Pirondini and Tracy Wright discuss Pioneer Multi-Asset Income Fund's investment strategies during the 12-period ended July 31, 2015, along with their outlook for the coming months. Mr. Pirondini, Executive Vice President, Head of Equities, U.S., and a portfolio manager at Pioneer, and Ms. Wright, a senior vice president and portfolio manager at Pioneer, co-manage the Fund along with Michele Garau, a senior vice president and a portfolio manager at Pioneer, and Charles Melchreit, a senior vice president, Director of Investment Grade, and a portfolio manager at Pioneer. Q How did the Fund perform during the 12-month period ended July 31, 2015? A The Fund's Class A shares returned -1.10% at net asset value during the 12-month period ended July 31, 2015, while the Fund's benchmarks, the Barclays Aggregate Bond Index (the Barclays Index) and the Morgan Stanley Capital International Index (MSCI) All Country World ND Index (the MSCI Index)1, returned 2.82% and 2.83%, respectively. During the same period, the average return of the 369 mutual funds in Lipper's Mixed-Asset Target Allocation Conservative Funds category was 1.59%, and the average return of the 806 mutual funds in Morningstar's Conservative Allocation Funds category was 1.17%. Q How would you characterize the global investment environment during the 12-month period ended July 31, 2015? A The global financial markets produced wide-ranging results for the 12-month period, as investors absorbed a steady flow of macroeconomic and geopolitical news and a meaningful rise in volatility. Prospects for the U.S. economy generally improved over the period, despite occasional setbacks such as a weak gross domestic product report for the first calendar quarter of 2015. As a result of the better domestic economic news, speculation about the timing of the Fed's first increase in the benchmark 1 The MSCI information may only be used for your internal use, may not be reproduced or redisseminated in any form and may not be used as a basis for or a component of any financial instruments or products or indices. None of the MSCI information is intended to constitute investment advice or a recommendation to make (or refrain from making) any kind of investment decision and may not be relied on as such. Historical data and analysis should not be taken as an indication or guarantee of any future performance analysis, forecast or prediction. The MSCI information is provided on an "as is" basis and the user of this information assumes the entire risk of any use made of this information. MSCI, each of its affiliates and each other person involved in or related to compiling, computing or creating any MSCI information (collectively, the "MSCI Parties") expressly disclaims all warranties (including, without limitation, any warranties of originality, accuracy, completeness, timeliness, non-infringement, merchantability and fitness for a particular purpose) with respect to this information. Without limiting any of the foregoing, in no event shall any MSCI Party have any liability for any direct, indirect, special, incidental, punitive, consequential (including, without limitation, lost profits) or any other damages. 4 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Federal funds rate dominated investor discourse for the balance of the 12-month period, and the uncertainty pressured interest-rate-sensitive investments, including high-yield bonds. With the exception of Japan, international equity and fixed-income markets posted weak or even negative results for the 12-month period. The Greek debt crisis, geopolitical tensions in the Ukraine and the Middle East, and sluggish economic growth in many emerging markets -- particularly China -- headed a list of challenges facing international investors. In addition, oil prices began to decline significantly in late 2014/early 2015. While prices eventually recovered, somewhat, from their March 2015 trough, crude oil still finished the 12-month period well behind July 2014 price levels. The development added yet another dimension to the debate about global economic growth, given the speed and magnitude of the price drop. The interplay of those and other factors rippled across industry sectors, countries, and asset classes. Commodities, international stocks and bonds, and the emerging markets generally felt the weight of the developments most acutely. On the other hand, U.S. stocks, by and large, delivered solid results for the 12-month period, despite challenges presented to U.S. multinational corporations by a strong U.S. dollar. U.S. stocks outperformed most international indices by a considerable margin during the period, and Japanese stocks also delivered solid results. Q What were the main factors behind the Fund's underperformance of its benchmarks (the Barclays Index and the MSCI Index) during the 12-month period ended July 31, 2015? A The Fund's lagging absolute and benchmark-relative performance was driven largely by the portfolio's high-yield bond allocation, particularly holdings of bonds issued by companies with exposure to falling oil and gas prices. Debt issued by companies in energy-related industries accounts for a relatively large portion of the high-yield market (more than 15%), and so the sharp drop in oil prices had a profoundly negative effect on the asset class during the period. Based on our belief that oil is likely to face continued price weakness over the foreseeable future, we reduced the portfolio's exposure to energy bonds in the high-yield market towards the end of the first half of the reporting period and sold all of the portfolio's oil-related stocks by the end of 2014. We believe the decision was helpful in limiting portfolio volatility in the second half of the reporting period, but that was not enough to offset the negative influence of the high-yield energy Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 5 holdings on the Fund's performance over the full 12 months. Going forward, we do not believe the performance of the energy sector will be a large driver of the Fund's performance. Other drags on the Fund's benchmark-relative performance during the period included an underweight to U.S. Treasuries as well as exposure to international equities. With regard to Treasuries, the asset class delivered decent performance relative to other fixed-income alternatives, especially in the fourth quarter of 2014 when they outperformed riskier credit-sensitive assets. That said, we continue to believe that there is better value to be found outside the government sector within fixed income, and have maintained a portfolio overweight to higher-yielding, lower-rated corporate bonds. Lower-quality bonds also may be less sensitive to rising interest rates than other asset classes, such as investment-grade bonds and emerging markets securities. International equities lagged U.S. stocks during the period, with the underperformance compounded by their performance results being translated back into the stronger U.S. dollar-denominated returns. An accommodative European Central Bank (ECB) has been proactive in its efforts to avoid a deflationary spiral in the euro zone, but slower growth caused the euro to fall to a multi-year low versus the U.S. dollar during the period. In the Pacific Rim, the Japanese economy contracted and investor enthusiasm for "Abenomics" faded during the period. However, Japan's stock market fared reasonably well as earnings of Japanese companies improved -- a trend that we expect to continue in the second half of 2015. Individual securities which detracted from the Fund's performance during the period included a portfolio position in American Realty, a real estate investment trust (REIT). The company's performance suffered when it disclosed accounting irregularities and a subsequent cover-up, thus inviting a regulatory probe. We immediately sold the holding from the portfolio following the announcement. On the fixed-income side of the portfolio, the debt of Samson Investment, an oil and gas exploration-and-production company, was one of the holdings from the energy sector that detracted from the Fund's performance. We sold the position earlier this year as part of our strategy to reduce the portfolio's exposure to high-yield energy bonds. 6 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Q Which of your investment decisions had a positive effect on the Fund's performance during the 12-month period ended July 31, 2015? A Positive security selection results among the Fund's holdings in health care made a strong contribution to relative returns during the period. Within the sector, shares of Pfizer and Johnson & Johnson augmented the Fund's performance. In addition, our decision to limit the portfolio's exposure to energy, commodities and basic materials helped relative returns. Among the Fund's Japanese equity holdings, positions in Mitsubishi UFJ Financial, Japan Tobacco, and NTT were solid contributors to performance during the 12-month period as the Japanese stock market outperformed its international peers. Q Did the use of derivative investments have a material effect on the Fund's performance during the 12-month period ended July 31, 2015? A During the reporting period, we saw a high degree of currency fluctuations that proved to be performance headwinds for the Fund. That was especially true for the portfolio's international equity holdings when, as noted above, their performance gains in local currencies were converted back into the stronger U.S. dollar. To mitigate that risk, we used forward currency contracts in an attempt to "hedge" the impact of currency movements on certain positions within the portfolio. Also, as an equity hedge, we purchased a "put" option on the Standard & Poor's 500 Index in an attempt to protect the Fund should any stock market correction occur. The option will expire in October 2015. (A "put" option is a contractual agreement that gives the contract owner the right, but not the obligation, to sell a security at a pre-determined, fixed price for a certain period of time, regardless of the current market price of that security.) The use of these derivatives did not have a material effect on the Fund's performance during the period. Q Could you discuss the status of the Fund's yield during the 12-month period ended July 31, 2015? A The income generated by the portfolio's holdings contributed to a very competitive yield during the 12-month period. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 7 The Fund made a special distribution of $0.1423 per share in December 2014, which included the $0.0500 monthly dividend* as well as an extra $0.0923 payout resulting from higher-than-expected income generation from the portfolio's equity holdings. Beginning in January 2015, the Fund's monthly dividend was slightly reduced compared with 2014 levels. This development was a reflection of weak global economic growth trends, subdued global inflation and, by extension, the continuing low-interest-rate environment in both the United States and abroad, which had a limiting effect on the amount of income the portfolio's investments could generate. Q Did the Fund's asset allocation change during the course of the 12-month period ended July 31, 2015? A We did not implement any major shifts in the Fund's investment strategy during the period; however, we did take advantage of market corrections to invest selectively in what we considered to be attractively priced securities in the international equity and high-yield bond markets. We also pared back the Fund's already limited exposure to business development companies and REITs and invested the proceeds from those sales in the stocks of U.S. and Japanese financial firms. By the midpoint of the 12-month reporting period, we had evenly spread the Fund's assets between income-oriented equities -- with an emphasis on less-cyclical investments, such as pharmaceutical firms, in an attempt to reduce market volatility -- and fixed-income securities with more of a cyclical orientation. We believe this approach may position the Fund's portfolio to be more sensitive to an improving economy rather than to interest-rate movements. Within the fixed-income portion of the portfolio, as mentioned earlier, we continued to overweight U.S. high-yield debt (even though we reduced energy exposure), given the solid domestic economic backdrop. Q What is your outlook for the coming months? A Looking ahead, we expect to maintain a more conservative bias in the portfolio, given signs of a deceleration in global economic growth. China's slowdown is proving to be a big headwind for global growth, and that fact became even more apparent in the weeks following the close of the reporting period when the markets had a sharply negative reaction to the Chinese government's decision to devalue the yuan. * Dividends are not guaranteed. 8 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Accordingly, we believe China's slump, currency trends, and questions about the timing of the Fed's first rate hike will be some of the dominant topics contributing to heightened market volatility in the coming months. Against this complex backdrop, we would expect the performance of the various asset classes to be more varied, making asset allocation decisions as important as security selection to overall performance. As such, we believe the portfolio's current positioning, with an emphasis on U.S. high-yield bonds within the fixed-income allocation and large overweights in the health care and financials sectors within the equity portion, will have the greatest effect on the Fund's returns going forward. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 9 Please refer to the Schedule of Investments on pages 21-52 for a full listing of Fund securities. High yield bonds possess greater price volatility, illiquidity, and possibility of default. Investments in fixed-income securities involve interest rate, credit, inflation, and reinvestment risks. As interest rates rise, the value of fixed income securities falls. Prepayment risk is the chance that an issuer may exercise the right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The Fund may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. The Fund may invest in subordinated securities which may be disproportionately adversely affected by a default or even a perceived decline in creditworthiness of the issuer. International investments are subject to special risks including currency fluctuations, social, economic and political uncertainties, which could increase volatility. These risks are magnified in emerging markets. The Fund may invest in inflation-linked securities. As inflationary expectations increase, inflation-linked securities may become more attractive, because they protect future interest payments against inflation. Conversely, as inflationary concerns decrease, inflation-linked securities will become less attractive and less valuable. The Fund may invest in event-linked bonds. The return of principal and the payment of interest on event-linked bonds are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The Fund may invest in floating-rate loans. The value of collateral, if any, securing a floating rate loan can decline or may be insufficient to meet the issuer's obligations or may be difficult to liquidate. The Fund may invest in underlying funds (ETFs). In addition to the Fund's operating expenses, you will indirectly bear the operating expenses of investments in any underlying funds. 10 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Investments in equity securities are subject to price fluctuation. Investments in small-and mid-cap stocks involve greater risks and volatility than investments in large-cap stocks. The Fund may invest in Master Limited Partnerships, which are subject to increased risks of liquidity, price valuation, control, voting rights and taxation. In addition, the structure affords fewer protections to investors in the Partnership than direct investors in a corporation. The Fund may invest in zero-coupon bonds and payment-in-kind securities, which may be more speculative and fluctuate more in value than other fixed income securities. The accrual of income from these securities is payable as taxable annual dividends to shareholders. The Fund and some of the underlying funds in which the Fund invests may use derivatives, such as options and futures, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. The Fund may invest in credit default swaps, which may in some cases be illiquid, and they increase credit risk since the Fund has exposure to both the issuer of the referenced obligation and the counterparty to the credit default swap. The Fund and some of the underlying funds employ leverage, which increases the volatility of investment returns and subjects the Fund to magnified losses if an underlying fund's investments decline in value. These risks may increase share price volatility. There is no assurance that these and other strategies used by the Fund or underlying funds will be successful. Please see the prospectus for a more complete discussion of the Fund's risks. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is not a guarantee of future results. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 11 Portfolio Summary | 7/31/15 Portfolio Diversification* -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Corporate Bonds 34.5% International Common Stocks 26.9% U.S. Common Stocks 25.6% International Corporate Bonds 5.8% Collateralized Mortgage Obligations 1.8% Exchange Traded Funds 1.4% Asset Backed Securities 1.1% Senior Secured Loans 1.0% Municipal Bonds 0.9% Convertible Corporate Bonds 0.3% U.S. Preferred Stocks 0.2% Convertible Preferred Stocks 0.2% Foreign Government Bonds 0.2% Purchased Put Options 0.1% * Includes investments in Insurance Linked Securities totaling 2.3% of total investment portfolio. Sector Distribution -------------------------------------------------------------------------------- (As a percentage of total long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] Financials 26.5% Health Care 15.8% Consumer Discretionary 10.6% Energy 9.8% Information Technology 9.4% Consumer Staples 9.2% Industrials 6.4% Telecommunication Services 4.9% Materials 4.4% Utilities 2.1% Government 0.9% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)** 1. Pfizer, Inc. 3.18% -------------------------------------------------------------------------------- 2. Johnson & Johnson 2.73 -------------------------------------------------------------------------------- 3. Avance Gas Holding, Ltd. 1.72 -------------------------------------------------------------------------------- 4. Dhabi Commercial Bank PJSC 1.72 -------------------------------------------------------------------------------- 5. Apollo Investment Corp. 1.68 -------------------------------------------------------------------------------- 6. Merck & Co., Inc. 1.60 -------------------------------------------------------------------------------- 7. Roche Holding AG 1.46 -------------------------------------------------------------------------------- 8. Japan Tobacco, Inc. 1.45 -------------------------------------------------------------------------------- 9. JPMorgan Chase & Co. 1.40 -------------------------------------------------------------------------------- 10. Microsoft Corp. 1.36 -------------------------------------------------------------------------------- ** This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 12 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Prices and Distributions | 7/31/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 7/31/15 7/31/14 -------------------------------------------------------------------------------- A $11.15 $11.94 -------------------------------------------------------------------------------- C $11.12 $11.91 -------------------------------------------------------------------------------- Y $11.14 $11.93 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 7/31/15 12/1/14* -------------------------------------------------------------------------------- K $11.15 $11.50 -------------------------------------------------------------------------------- R $11.20 $11.50 -------------------------------------------------------------------------------- Distributions per Share: 8/1/14-7/31/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.6573 $-- $-- -------------------------------------------------------------------------------- C $0.5644 $-- $-- -------------------------------------------------------------------------------- K $0.4768 $-- $-- -------------------------------------------------------------------------------- R $0.4286 $-- $-- -------------------------------------------------------------------------------- Y $0.6813 $-- $-- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Barclays Aggregate Bond Index is an unmanaged measure of the U.S. bond market. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. The MSCI All Country World ND Index is an unmanaged, free float-adjusted, market capitalization-weighted index that is designed to measure the equity market performance of developed and emerging markets. The Index consists of 45 country indices comprising 24 developed and 21 emerging market country indices. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The indices defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts on pages 14-18. * Share classes commenced operations on December 1, 2014. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 13 Performance Update | 7/31/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Multi-Asset Income Fund at public offering price during the periods shown, compared to that of the Barclays Aggregate Bond Index and the MSCI All Country World ND Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- MSCI All Net Public Barclays Country Asset Offering Aggregate World Value Price Bond ND Period (NAV) (POP) Index Index -------------------------------------------------------------------------------- Life-of-Class 12/22/11 9.58% 8.20% 2.50% 12.89% 1 Year -1.10 -5.53 2.82 2.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.40% 1.25% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Multi-Asset Barclays Aggregate MSCI All Country Income Fund Bond Index World ND Index 12/31/2011 $ 9,550 $10,000 $10,000 7/31/2012 $10,372 $10,378 $10,710 7/31/2013 $11,775 $10,181 $12,905 7/31/2014 $13,396 $10,585 $14,958 7/31/2015 $13,249 $10,884 $15,382 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through December 1, 2015, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 14 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Performance Update | 7/31/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Multi-Asset Income Fund during the periods shown, compared to that of the Barclays Aggregate Bond Index and the MSCI All Country World ND Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- MSCI All Barclays Country Aggregate World If If Bond ND Period Held Redeemed Index Index -------------------------------------------------------------------------------- Life-of-Class 12/22/11 8.66% 8.66% 2.50% 12.89% 1 Year -1.89 -1.89 2.82 2.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 2.12% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Multi-Asset Barclays Aggregate MSCI All Country Income Fund Bond Index World ND Index 12/31/2011 $10,000 $10,000 $10,000 7/31/2012 $10,812 $10,378 $10,710 7/31/2013 $12,151 $10,181 $12,905 7/31/2014 $13,711 $10,585 $14,958 7/31/2015 $13,452 $10,884 $15,382 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 15 Performance Update | 7/31/15 Class K Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class K shares of Pioneer Multi-Asset Income Fund during the periods shown, compared to that of the Barclays Aggregate Bond Index and the MSCI All Country World ND Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- MSCI All Net Barclays Country Asset Aggregate World Value Bond ND Period (NAV) Index Index -------------------------------------------------------------------------------- Life-of-Class 12/22/11 9.65% 2.50% 12.89% 1 Year -0.89 2.82 2.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.05% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Multi-Asset Barclays Aggregate MSCI All Country Income Fund Bond Index World ND Index 12/31/2011 $10,000 $10,000 $10,000 7/31/2012 $10,858 $10,378 $10,710 7/31/2013 $12,326 $10,181 $12,905 7/31/2014 $14,024 $10,585 $14,958 7/31/2015 $13,899 $10,884 $15,382 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. The performance shown for Class K shares for the period prior to the commencement of operations of Class K shares on December 1, 2014, is the net asset value performance of the Fund's Class A shares, which has not been restated to reflect any differences in expenses, including Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares generally are higher than those of Class K shares, the performance of Class K shares prior to their inception would have been higher than the performance shown. For the period beginning December 1, 2014, the actual performance of Class K shares is reflected. Class K shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 16 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Performance Update | 7/31/15 Class R Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class R shares of Pioneer Multi-Asset Income Fund during the periods shown, compared to that of the Barclays Aggregate Bond Index and the MSCI All Country World ND Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- MSCI All Net Barclays Country Asset Aggregate World Value Bond ND Period (NAV) Index Index -------------------------------------------------------------------------------- Life-of-Class 12/22/11 9.65% 2.50% 12.89% 1 Year -0.86 2.82 2.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.70% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Multi-Asset Barclays Aggregate MSCI All Country Income Fund Bond Index World ND Index 12/31/2011 $10,000 $10,000 $10,000 7/31/2012 $10,858 $10,378 $10,710 7/31/2013 $12,326 $10,181 $12,905 7/31/2014 $14,024 $10,585 $14,958 7/31/2015 $13,903 $10,884 $15,382 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. The performance shown for Class R shares for the period prior to the commencement of operations of Class R shares on December 1, 2014, is based on the performance of Class A shares, reduced to reflect the higher distribution and service fees of Class R shares. For the period beginning December 1, 2014, the actual performance of Class R shares is reflected. Class R shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 17 Performance Update | 7/31/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Multi-Asset Income Fund during the periods shown, compared to that of the Barclays Aggregate Bond Index and the MSCI All Country World ND Index. Average Annual Total Returns (As of July 31, 2015) -------------------------------------------------------------------------------- MSCI All Net Barclays Country Asset Aggregate World Value Bond ND Period (NAV) Index Index -------------------------------------------------------------------------------- Life-of-Class 12/22/11 9.76% 2.50% 12.89% 1 Year -0.89 2.82 2.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 1, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.11% 1.05% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Multi-Asset Barclays Aggregate MSCI All Country Income Fund Bond Index World ND Index 12/31/2011 $5,000,000 $5,000,000 $5,000,000 7/31/2012 $5,438,634 $5,189,203 $5,355,020 7/31/2013 $6,174,439 $5,090,349 $6,452,651 7/31/2014 $7,039,302 $5,292,408 $7,479,183 7/31/2015 $6,976,906 $5,441,860 $7,691,060 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through December 1, 2015, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 18 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Multi-Asset Income Fund Based on actual returns from February 1, 2015, through July 31, 2015. --------------------------------------------------------------------------------- Share Class A C K R Y --------------------------------------------------------------------------------- Beginning Account Value on 2/1/15 $1,000.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00 --------------------------------------------------------------------------------- Ending Account Value (after expenses) on 7/31/15 $1,029.46 $1,025.50 $1,051.79 $1,053.20 $1,031.43 --------------------------------------------------------------------------------- Expenses Paid During Period* $ 6.69 $ 10.90 $ 5.65 $ 9.57 $ 5.69 --------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratios of the underlying funds. These combined totals were 1.33%, 2.17%, 1.11%, 1.88% and 1.13% for Class A, Class C, Class K, Class R and Class Y shares, respectively, multiplied by the average account value over the period multiplied by 181/365 (to reflect the one-half year period). Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 19 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Multi-Asset Income Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from February 1, 2015, through July 31, 2015. --------------------------------------------------------------------------------- Share Class A C K R Y --------------------------------------------------------------------------------- Beginning Account Value on 2/1/15 $1,000.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00 --------------------------------------------------------------------------------- Ending Account Value (after expenses) on 7/31/15 $1,018.20 $1,014.03 $1,019.29 $1,015.47 $1,019.19 --------------------------------------------------------------------------------- Expenses Paid During Period* $ 6.66 $ 10.84 $ 5.56 $ 9.39 $ 5.66 --------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratios of the underlying funds. These combined totals were 1.33%, 2.17%, 1.11%, 1.88% and 1.13% for Class A, Class C, Class K, Class R and Class Y shares, respectively, multiplied by the average account value over the period multiplied by 181/365 (to reflect the one-half year period). 20 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Schedule of Investments | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- CONVERTIBLE CORPORATE BONDS -- 0.3% ENERGY -- 0.1% Oil & Gas Exploration & Production -- 0.1% 1,300,000 Cobalt International Energy, Inc., 2.625%, 12/1/19 $ 872,625 3,330,000 Energy XXI, Ltd., 3.0%, 12/15/18 430,819 --------------- $ 1,303,444 --------------- Total Energy $ 1,303,444 ------------------------------------------------------------------------------------------------------- MATERIALS -- 0.0%+ Diversified Metals & Mining -- 0.0%+ 27,430 Mirabela Nickel, Ltd., 9.5%, 6/24/19 (144A) (0.0% cash, 9.5% PIK) (PIK) (e) $ 19,475 --------------- Total Materials $ 19,475 ------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.1% Electrical Components & Equipment -- 0.1% 1,410,000 General Cable Corp., 4.5%, 11/15/29 (Step) $ 1,054,856 --------------- Total Capital Goods $ 1,054,856 ------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.0%+ Biotechnology -- 0.0%+ 250,000 Corsicanto, Ltd., 3.5%, 1/15/32 $ 253,906 --------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 253,906 ------------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.1% Mortgage REIT -- 0.1% 595,000 Apollo Commercial Real Estate Finance, Inc., 5.5%, 3/15/19 $ 596,116 --------------- Total Real Estate $ 596,116 ------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BONDS (Cost $6,231,628) $ 3,227,797 ------------------------------------------------------------------------------------------------------- PREFERRED STOCKS -- 0.2% TRANSPORTATION -- 0.0%+ Air Freight & Logistics -- 0.0%+ 49 CEVA Group Plc, 12/31/14 (f)* $ 35,927 --------------- Total Transportation $ 35,927 ------------------------------------------------------------------------------------------------------- BANKS -- 0.1% Diversified Banks -- 0.1% 36,754 7.12 Citigroup, Inc., Floating Rate Note (Perpetual) $ 1,027,274 --------------- Total Banks $ 1,027,274 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 21 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.1% Investment Banking & Brokerage -- 0.1% 30,000 7.12 Morgan Stanley, Floating Rate Note (Perpetual) $ 839,400 --------------- Total Diversified Financials $ 839,400 ------------------------------------------------------------------------------------------------------- UTILITIES -- 0.0%+ Electric Utilities -- 0.0%+ 10,000 PPL Capital Funding, Inc., 5.9%, 4/30/73 $ 256,900 --------------- Total Utilities $ 256,900 ------------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost $1,967,400) $ 2,159,501 ------------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCKS -- 0.3% ENERGY -- 0.0%+ Oil & Gas Exploration & Production -- 0.0%+ 500 Halcon Resources Corp., 5.75% (Perpetual) $ 88,250 6,300 Penn VirginiaCorp., 6.0% (Perpetual) (144A) 82,026 --------------- $ 170,276 --------------- Total Energy $ 170,276 ------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 0.3% Integrated Telecommunication Services -- 0.3% 21,750 Frontier Communications Corp., 11.125%, 6/29/18 $ 2,126,062 --------------- Total Telecommunication Services $ 2,126,062 ------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $3,160,000) $ 2,296,338 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- Shares ------------------------------------------------------------------------------------------------------- COMMON STOCKS -- 50.2% ENERGY -- 2.0% Oil & Gas Exploration & Production -- 0.0%+ 26,968 Societatea Nationala de Gaze Naturale ROMGAZ SA $ 230,902 ------------------------------------------------------------------------------------------------------- Oil & Gas Refining & Marketing -- 0.1 275,692 Chevron Lubricants Lanka Plc $ 846,206 ------------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 1.7% 953,089 Avance Gas Holding, Ltd. $ 15,920,618 ------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 0.2% 2,650,351 Indo Tambangraya Megah Tbk PT $ 1,900,552 --------------- Total Energy $ 18,898,278 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 22 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Shares Value ------------------------------------------------------------------------------------------------------- MATERIALS -- 0.0%+ Diversified Metals & Mining -- 0.0%+ 159,303 Mirabela Nickel, Ltd.* $ 11,398 --------------- Total Materials $ 11,398 ------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.5% Electrical Components & Equipment -- 0.1% 41,330 Prysmian S.p.A. $ 947,549 ------------------------------------------------------------------------------------------------------- Heavy Electrical Equipment -- 0.4% 350,000 Mitsubishi Electric Corp. $ 3,756,474 ------------------------------------------------------------------------------------------------------- Industrial Machinery -- 0.0%+ 3,071 Liberty Tire Reclycling LLC (e) $ 31 --------------- Total Capital Goods $ 4,704,054 ------------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.0%+ Diversified Support Services -- 0.0%+ 8,516 TransUnion $ 213,752 --------------- Total Commercial Services & Supplies $ 213,752 ------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.9% Air Freight & Logistics -- 0.0%+ 22 CEVA Group Plc* $ 16,598 ------------------------------------------------------------------------------------------------------- Airlines -- 0.9% 68,034 American Airlines Group, Inc. 2,728,163 232,555 easyJet Plc 5,971,092 --------------- $ 8,699,255 --------------- Total Transportation $ 8,715,853 ------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 1.8% Auto Parts & Equipment -- 0.4% 253,885 SAF-Holland SA* $ 3,839,617 ------------------------------------------------------------------------------------------------------- Tires & Rubber -- 0.7% 181,500 Bridgestone Corp. $ 6,845,949 ------------------------------------------------------------------------------------------------------- Automobile Manufacturers -- 0.7% 56,423 Daimler AG $ 5,043,613 25,200 Toyota Motor Corp. 1,679,645 --------------- $ 6,723,258 --------------- Total Automobiles & Components $ 17,408,824 ------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 1.2% Homebuilding -- 0.6% 571,000 Sekisui Chemical Co., Ltd. $ 6,359,496 ------------------------------------------------------------------------------------------------------- Footwear -- 0.2% 1,705,000 Belle International Holdings, Ltd. $ 1,765,018 ------------------------------------------------------------------------------------------------------- Textiles -- 0.4% 2,321,000 Pacific Textiles Holdings, Ltd. $ 3,688,695 --------------- Total Consumer Durables & Apparel $ 11,813,209 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 23 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Shares Value ------------------------------------------------------------------------------------------------------- MEDIA -- 0.3% Advertising -- 0.3% 33,646 Publicis Groupe SA $ 2,544,627 --------------- Total Media $ 2,544,627 ------------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.4% Drug Retail -- 0.4% 30,570 CVS Health Corp. $ 3,438,208 --------------- Total Food & Staples Retailing $ 3,438,208 ------------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 5.6% Distillers & Vintners -- 1.2% 1,309,837,958 Vina San Pedro Tarapaca SA $ 11,090,117 ------------------------------------------------------------------------------------------------------- Soft Drinks -- 0.6% 578,931 Britvic Plc $ 6,208,505 ------------------------------------------------------------------------------------------------------- Packaged Foods & Meats -- 1.6% 69,876 Keurig Green Mountain, Inc. (k) $ 5,243,495 75,552 The Kraft Heinz Co. 6,004,117 WH Group, Ltd.* 4,143,905 --------------- $ 15,391,517 ------------------------------------------------------------------------------------------------------- Tobacco -- 2.2% 142,212 Altria Group, Inc. $ 7,733,489 343,800 Japan Tobacco, Inc. 13,342,311 --------------- $ 21,075,800 --------------- Total Food, Beverage & Tobacco $ 53,765,939 ------------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.6% Health Care Distributors -- 0.6% 67,629 Cardinal Health, Inc. $ 5,747,112 --------------- Total Health Care Equipment & Services $ 5,747,112 ------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 11.8% Biotechnology -- 0.8% 66,330 Gilead Sciences, Inc.* $ 7,817,654 ------------------------------------------------------------------------------------------------------- Pharmaceuticals -- 11.0% 83,726 AbbVie, Inc. $ 5,861,657 251,520 Johnson & Johnson 25,204,819 250,287 Merck & Co., Inc. 14,756,922 65,780 Novartis AG 6,831,645 813,946 Pfizer, Inc. 29,350,900 46,646 Roche Holding AG 13,451,587 114,369 Shire Plc 10,165,622 --------------- $ 105,623,152 --------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 113,440,806 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 24 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Shares Value ------------------------------------------------------------------------------------------------------- BANKS -- 6.9% Diversified Banks -- 5.9% 7,045,044 Abu Dhabi Commercial Bank PJSC $ 15,869,648 124,085,622 Corpbanca SA 1,251,160 124,968 Doha Bank QSC 1,818,972 1,071,924 First Gulf Bank PJSC 4,523,810 98,170 HSBC Holdings Plc 889,845 188,686 JPMorgan Chase & Co. 12,930,652 983,900 Mitsubishi UFJ Financial Group, Inc. 7,137,754 744,543 Nordea Bank AB 9,263,931 161,853 Swedbank AB 3,789,423 --------------- $ 57,475,195 ------------------------------------------------------------------------------------------------------- Regional Banks -- 1.0% 95,943 The PNC Financial Services Group, Inc. $ 9,419,684 --------------- Total Banks $ 66,894,879 ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 5.7% Asset Management & Custody Banks -- 3.6% 242,155 Aberdeen Asset Management Plc $ 1,377,893 2,256,587 Apollo Investment Corp. 15,480,187 295,316 Ares Capital Corp. 4,751,634 590,815 TCP Capital Corp. 8,986,296 300,000 TriplePoint Venture Growth BDC Corp. 3,858,000 --------------- $ 34,454,010 ------------------------------------------------------------------------------------------------------- Diversified Capital Markets -- 2.1% 331,672 Credit Suisse Group AG $ 9,755,134 461,105 UBS Group AG 10,595,144 --------------- $ 20,350,278 --------------- Total Diversified Financials $ 54,804,288 ------------------------------------------------------------------------------------------------------- INSURANCE -- 1.3% Multi-line Insurance -- 1.3 42,922 Allianz SE* $ 7,031,813 18,758 Zurich Insurance Group AG 5,706,776 --------------- $ 12,738,589 --------------- Total Insurance $ 12,738,589 ------------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.9% Diversified REIT -- 0.2% 345 Premier Investment Corp. $ 1,805,869 ------------------------------------------------------------------------------------------------------- Industrial REIT -- 0.7% 4,041,200 Mapletree Industrial Trust $ 4,491,583 2,260,200 Mapletree Logistics Trust 1,829,506 498,730 PLA Administradora Industrial S de RL de CV 1,007,857 --------------- $ 7,328,946 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 25 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Shares Value ------------------------------------------------------------------------------------------------------- Office REIT -- 0.2% 118,954 Alstria Office REIT-AG $ 1,645,838 ------------------------------------------------------------------------------------------------------- Specialized REIT -- 0.8% 138,202 EPR Properties $ 7,894,098 --------------- Total Real Estate $ 18,674,751 ------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 3.3% Internet Software & Services -- 1.0% 174,456 eBay, Inc.* $ 4,905,703 7,294 Google, Inc. (Class A)* 4,795,805 --------------- $ 9,701,508 ------------------------------------------------------------------------------------------------------- IT Consulting & Other Services -- 1.0% 57,642 International Business Machines Corp. $ 9,337,428 ------------------------------------------------------------------------------------------------------- Systems Software -- 1.3% 268,433 Microsoft Corp. $ 12,535,821 --------------- Total Software & Services $ 31,574,757 ------------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 3.3% Communications Equipment -- 0.4% 57,975 Qualcomm, Inc. $ 3,733,010 ------------------------------------------------------------------------------------------------------- Computer Storage & Peripherals -- 1.1% 85,746 Apple, Inc. $ 10,400,990 ------------------------------------------------------------------------------------------------------- Electronic Equipment Manufacturers -- 0.5% 1,369,000 PAX Global Technology, Ltd.* $ 2,184,380 2,240,000 Wasion Group Holdings, Ltd. 2,951,443 --------------- $ 5,135,823 ------------------------------------------------------------------------------------------------------- Electronic Components -- 0.4% 2,719,000 Yageo Corp. $ 3,857,678 ------------------------------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.1% 315,000 Global Display Co., Ltd. $ 1,213,179 ------------------------------------------------------------------------------------------------------- Technology Hardware, Storage & Peripherals -- 0.8% 197,000 Asustek Computer, Inc. $ 1,774,290 50,223 Neopost SA 2,019,077 130,072 NetApp, Inc. 4,051,743 --------------- $ 7,845,110 --------------- Total Technology Hardware & Equipment $ 32,185,790 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 26 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Shares Value ------------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.6% Semiconductors -- 0.6% 1,273,000 Advanced Semiconductor Engineering, Inc. $ 1,459,551 1,542,000 Transcend Information, Inc. 4,568,071 --------------- $ 6,027,622 --------------- Total Semiconductors & Semiconductor Equipment $ 6,027,622 ------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 2.0% Integrated Telecommunication Services -- 2.0% 3,767,346 Bezeq The Israeli Telecommunication Corp, Ltd. $ 6,937,160 100,600 Nippon Telegraph & Telephone Corp. 3,875,218 322,085 Orange SA 5,282,774 432,294 TDC A/S 3,257,926 --------------- $ 19,353,078 --------------- Total Telecommunication Services $ 19,353,078 ------------------------------------------------------------------------------------------------------- UTILITIES -- 0.2% Multi-Utilities -- 0.2% 113,831 Engie $ 2,184,006 --------------- Total Utilities $ 2,184,006 ------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost $482,591,280) $ 485,139,820 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) ------------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 1.0% CONSUMER SERVICES -- 0.2% Hotels, Resorts & Cruise Lines -- 0.2% 603,295 Westgate Resorts 2014-1 LLC, 5.5%, 12/20/26 (144A) $ 601,726 1,044,931 Westgate Resorts LLC, 9.5%, 2/20/25 (144A) 1,044,074 --------------- $ 1,645,800 --------------- Total Consumer Services $ 1,645,800 ------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.8% 2,424 6.50 ACE Securities Corp. Manufactured Housing Trust Series 2003-MH1, Floating Rate Note, 8/15/30 (144A) $ 2,429 800,000 Ascentium Equipment Receivables 2015-1 LLC, 5.92%, 6/12/23 (144A) 802,742 499,993 Axis Equipment Finance Receivables III LLC, 5.27%, 5/20/20 (144A) 498,990 7,542 Bayview Financial Mortgage Pass-Through Trust 2007-B, 6.407%, 8/28/47 (Step) 7,504 300,226 Bayview Opportunity Master Fund IIa Trust 2014-20NPL, 3.475%, 8/28/44 (Step) (144A) (f) 300,837 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 27 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 1,403,670 3.72 Bayview Opportunity Master Fund Trust 2014-15RPL, Floating Rate Note, 10/28/19 (144A) $ 1,402,471 55,298 Bear Stearns Asset Backed Securities Trust, 8.41%, 10/25/29 (Step) 56,214 205,000 Countrywide Asset-Backed Certificates, 5.56%, 1/25/36 (Step) 205,617 50,125 5.24 Countrywide Asset-Backed Certificates, Floating Rate Note, 1/25/36 51,442 70,017 7.78 GE Mortgage Services LLC, Floating Rate Note, 3/25/27 49,174 579,353 GLC Trust 2013-1, 3.0%, 7/15/21 (144A) 576,890 750,000 Leaf Receivables Funding 10 LLC, 5.21%, 7/15/21 (144A) 740,674 200,000 Nations Equipment Finance Funding I LLC, 5.5%, 5/20/21 (144A) 200,500 250,000 Navitas Equipment Receivables LLC 2013-1, 5.82%, 6/15/19 251,052 1,000,000 Navitas Equipment Receivables LLC 2015-1, 5.75%, 5/17/21 (144A) 1,002,256 600,000 4.69 NCF Dealer Floorplan Master Trust, Floating Rate Note, 10/20/20 (144A) 600,000 83,260 RASC Series 2003-KS5 Trust, 4.46%, 7/25/33 (Step) 82,533 1,200,000 3.44 Silver Bay Realty 2014-1 Trust, Floating Rate Note, 9/18/31 (144A) 1,172,719 --------------- $ 8,004,044 --------------- Total Banks $ 8,004,044 ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.0%+ Other Diversified Financial Services -- 0.0%+ 178,395 Spirit Master Funding LLC, 5.74%, 3/20/42 (144A) $ 195,024 --------------- Total Diversified Financials $ 195,024 ------------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $9,906,800) $ 9,844,868 ------------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 1.7% BANKS -- 1.7% Thrifts & Mortgage Finance -- 1.7% 100,000 A10 Securitization 2013-1 LLC, 4.7%, 11/17/25 (144A) $ 100,105 100,000 A10 Securitization 2013-1 LLC, 6.41%, 11/17/25 (144A) 100,055 The accompanying notes are an integral part of these financial statements. 28 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 200,000 5.22 Bear Stearns Commercial Mortgage Securities Trust 2004-TOP16, Floating Rate Note, 2/13/46 (144A) $ 206,843 100,000 5.21 Bear Stearns Commercial Mortgage Securities Trust 2005-PWR7, Floating Rate Note, 2/11/41 99,939 1,500,000 5.07 Bear Stearns Commercial Mortgage Securities Trust 2005-TOP20, Floating Rate Note, 10/12/42 1,500,264 767,493 Bear Stearns Commercial Mortgage Securities Trust 2006-PWR14, 5.273%, 12/11/38 778,553 14,073 5.79 CHL Mortgage Pass-Through Trust 2002-32, Floating Rate Note, 1/25/33 14,423 50,000 5.78 Citigroup Commercial Mortgage Trust 2006-C4, Floating Rate Note, 3/17/49 51,229 18,022 Credit Suisse First Boston Mortgage Securities Corp., 5.5%, 6/25/33 18,263 100,000 5.14 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 10/15/39 (144A) 101,712 855,000 5.10 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 8/15/38 854,606 100,000 5.46 DBUBS 2011-LC2 Mortgage Trust, Floating Rate Note, 7/12/44 (144A) 110,765 250,000 5.14 GE Capital Commercial Mortgage Corp., Floating Rate Note, 7/10/45 (144A) 249,716 163,819 Global Mortgage Securitization, Ltd., 5.25%, 11/25/32 (144A) 151,620 64,421 Global Mortgage Securitization, Ltd., 5.25%, 11/25/32 (144A) 61,996 65,094 Global Mortgage Securitization, Ltd., 5.25%, 11/25/32 (144A) 52,563 36,659 Global Mortgage Securitization, Ltd., 5.25%, 4/25/32 26,939 210,000 5.00 GMAT 2013-1 Trust, Floating Rate Note, 11/25/43 201,231 675,000 4.09 GS Mortgage Securities Trust 2014-GSFL, Floating Rate Note, 7/15/31 (144A) 668,889 225,000 6.01 JP Morgan Chase Commercial Mortgage Securities Trust 2007-LDP12, Floating Rate Note, 2/15/51 229,145 1,960,000 6.41 JP Morgan Chase Commercial Mortgage Securities Trust 2014-CBM MZ, Floating Rate Note, 10/15/19 (144A) 1,966,272 1,250,000 3.69 JP Morgan Chase Commercial Mortgage Securities Trust 2014-FBLU REMICS, Floating Rate Note, 12/15/28 (144A) 1,249,411 23,411 2.86 MASTR Adjustable Rate Mortgages Trust, Floating Rate Note, 1/25/35 23,250 63,227 MASTR Alternative Loan Trust 2004-6, 6.0%, 7/25/34 64,329 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 29 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 89,937 Merrill Lynch Mortgage Investors Trust Series 2006-AF1, 5.75%, 8/25/36 $ 72,111 2,300,000 5.33 Merrill Lynch Mortgage Trust 2005-CKI1, Floating Rate Note, 11/12/37 2,299,867 3,000,000 ML-CFC Commercial Mortgage Trust 2006-4, 5.239%, 12/12/49 3,026,184 100,000 5.30 Springleaf Mortgage Loan Trust 2012-3, Floating Rate Note, 12/26/59 (144A) 102,799 250,000 5.58 Springleaf Mortgage Loan Trust 2013-1, Floating Rate Note, 6/25/58 (144A) 257,617 1,000,000 7.11 Velocity Commercial Capital Loan Trust 2015-1, Floating Rate Note, 6/25/45 (144A) 1,002,100 84,000 5.66 Wachovia Bank Commercial Mortgage Trust Series 2006-C24, Floating Rate Note, 3/15/45 84,613 25,000 5.95 Wachovia Bank Commercial Mortgage Trust Series 2007-C34, Floating Rate Note, 5/15/46 26,004 100,000 5.34 WFRBS Commercial Mortgage Trust 2011-C3, Floating Rate Note, 3/15/44 (144A) 109,256 100,000 4.35 WFRBS Commercial Mortgage Trust 2013-C12, Floating Rate Note, 3/17/48 (144A) 97,458 --------------- $ 15,960,127 --------------- Total Banks $ 15,960,127 ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.0%+ Other Diversified Financial Services -- 0.0%+ 200,000 5.19 Del Coronado Trust 2013-DEL MZ, Floating Rate Note, 3/15/18 (144A) $ 199,500 100,000 5.91 Morgan Stanley Capital I Trust 2007-IQ15, Floating Rate Note, 6/11/49 106,032 --------------- $ 305,532 --------------- Total Diversified Financials $ 305,532 ------------------------------------------------------------------------------------------------------- GOVERNMENT -- 0.0%+ Government -- 0.0%+ 50,000 4.30 Federal Home Loan Mortgage Corp., Floating Rate Note, 9/26/44 (144A) $ 51,925 126,255 Federal National Mortgage Association REMICS, 3.5%, 1/25/29 6,337 100,000 4.35 FREMF Mortgage Trust 2011-K12, Floating Rate Note, 1/25/46 (144A) 107,398 24,181 6.46 Government National Mortgage Association REMICS, Floating Rate Note, 6/20/38 2,098 --------------- $ 167,758 --------------- Total Government $ 167,758 ------------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $16,327,695) $ 16,433,417 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 30 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 38.4% ENERGY -- 6.8% Oil & Gas Drilling -- 0.1% 210,000 Ocean Rig UDW, Inc., 7.25%, 4/1/19 (144A) $ 132,300 170,000 Parker Drilling Co., 7.5%, 8/1/20 147,900 775,000 Pioneer Energy Services Corp., 6.125%, 3/15/22 538,625 --------------- $ 818,825 ------------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.4% 700,000 Exterran Partners LP, 6.0%, 4/1/21 $ 638,750 500,000 Forum Energy Technologies, Inc., 6.25%, 10/1/21 482,500 1,395,000 7.78 FTS International, Inc., Floating Rate Note, 6/15/20 (144A) 1,340,216 370,000 Hiland Partners LP, 5.5%, 5/15/22 (144A) 381,562 600,000 Hiland Partners LP, 7.25%, 10/1/20 (144A) 647,250 295,000 Key Energy Services, Inc., 6.75%, 3/1/21 144,550 860,000 McDermott International, Inc., 8.0%, 5/1/21 (144A) 741,750 --------------- $ 4,376,578 ------------------------------------------------------------------------------------------------------- Integrated Oil & Gas -- 0.5% 144,000 Energy XXI Gulf Coast, Inc., 6.875%, 3/15/24 $ 31,320 4,392,000 Lukoil International Finance BV, 6.125%, 11/9/20 (144A) 4,458,231 --------------- $ 4,489,551 ------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 4.1% 1,580,000 Approach Resources, Inc., 7.0%, 6/15/21 $ 1,339,050 700,000 Berry Petroleum Co., LLC, 6.375%, 9/15/22 469,000 935,000 Bonanza Creek Energy, Inc., 5.75%, 2/1/23 757,350 1,185,000 Bonanza Creek Energy, Inc., 6.75%, 4/15/21 1,025,025 430,000 BreitBurn Energy Partners LP, 7.875%, 4/15/22 296,700 2,695,000 Carrizo Oil & Gas, Inc., 6.25%, 4/15/23 2,586,661 2,105,000 Chaparral Energy, Inc., 7.625%, 11/15/22 1,231,425 1,110,000 Comstock Resources, Inc., 7.75%, 4/1/19 399,600 1,250,000 Denbury Resources, Inc., 4.625%, 7/15/23 900,000 1,125,000 Denbury Resources, Inc., 5.5%, 5/1/22 891,562 2,465,000 EP Energy LLC, 6.375%, 6/15/23 (144A) 2,304,775 50,000 EPL Oil & Gas, Inc., 8.25%, 2/15/18 24,250 1,270,000 Gulfport Energy Corp., 6.625%, 5/1/23 (144A) 1,270,000 2,205,000 Gulfport Energy Corp., 7.75%, 11/1/20 2,260,125 235,000 Halcon Resources Corp., 8.875%, 5/15/21 122,200 1,230,000 Halcon Resources Corp., 9.75%, 7/15/20 664,200 1,025,000 Legacy Reserves LP, 6.625%, 12/1/21 794,375 2,100,000 Linn Energy LLC, 6.25%, 11/1/19 1,271,802 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 31 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- (continued) 1,200,000 Linn Energy LLC, 6.5%, 9/15/21 $ 690,000 130,000 Linn Energy LLC, 7.75%, 2/1/21 76,050 2,965,000 Memorial Production Partners LP, 6.875%, 8/1/22 2,372,000 740,000 Memorial Production Partners LP, 7.625%, 5/1/21 621,600 630,000 Memorial Resource Development Corp., 5.875%, 7/1/22 593,775 1,370,000 Noble Energy, Inc., 5.875%, 6/1/22 1,469,807 680,000 Noble Energy, Inc., 5.875%, 6/1/24 737,864 1,365,000 Northern Oil and Gas, Inc., 8.0%, 6/1/20 (144A) 1,201,200 250,000 Oasis Petroleum, Inc., 6.875%, 3/15/22 230,000 1,570,000 Parsley Energy LLC, 7.5%, 2/15/22 (144A) 1,573,925 200,000 PDC Energy, Inc., 7.75%, 10/15/22 206,250 200,000 Penn Virginia Corp., 7.25%, 4/15/19 85,500 650,000 Penn Virginia Corp., 8.5%, 5/1/20 305,500 785,000 Rice Energy Inc., 6.25%, 5/1/22 741,825 1,115,000 RSP Permian, Inc., 6.625%, 10/1/22 (144A) 1,123,362 2,830,000 Sanchez Energy Corp., 6.125%, 1/15/23 2,292,300 50,000 SandRidge Energy, Inc., 7.5%, 2/15/23 15,250 380,000 SandRidge Energy, Inc., 7.5%, 3/15/21 114,000 1,300,000 SM Energy Co., 5.0%, 1/15/24 1,189,500 485,000 SM Energy Co., 5.625%, 6/1/25 458,325 1,195,000 Swift Energy Co., 7.875%, 3/1/22 298,750 355,000 Swift Energy Co., 8.875%, 1/15/20 92,300 1,300,000 WPX Energy, Inc., 7.5%, 8/1/20 1,319,500 2,900,000 WPX Energy, Inc., 8.25%, 8/1/23 2,947,125 --------------- $ 39,363,808 ------------------------------------------------------------------------------------------------------- Oil & Gas Refining & Marketing -- 0.5% 3,550,000 Calumet Specialty Products Partners LP, 6.5%, 4/15/21 $ 3,491,780 170,000 Calumet Specialty Products Partners LP, 7.625%, 1/15/22 172,243 1,275,000 Calumet Specialty Products Partners LP, 7.75%, 4/15/23 (144A) 1,295,719 100,000 Valero Energy Corp., 6.625%, 6/15/37 114,201 --------------- $ 5,073,943 ------------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 1.2% 385,000 Crestwood Midstream Partners LP, 6.125%, 3/1/22 $ 380,188 300,000 5.85 DCP Midstream LLC, Floating Rate Note, 5/21/43 (144A) 226,500 790,000 Energy Transfer Equity LP, 5.875%, 1/15/24 803,825 1,655,000 Global Partners LP, 6.25%, 7/15/22 1,551,562 The accompanying notes are an integral part of these financial statements. 32 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- (continued) 2,070,000 Global Partners LP, 7.0%, 6/15/23 (144A) $ 1,992,375 100,000 Kinder Morgan Energy Partners LP, 5.0%, 8/15/42 85,287 690,000 PBF Logistics LP, 6.875%, 5/15/23 (144A) 688,275 226,000 Penn Virginia Resource Partners LP, 6.5%, 5/15/21 240,125 690,000 Sabine Pass Liquefaction LLC, 5.625%, 3/1/25 (144A) 679,650 1,365,000 Sabine Pass Liquefaction LLC, 5.75%, 5/15/24 1,357,322 3,225,000 Sunoco LP, 6.375%, 4/1/23 (144A) 3,313,688 --------------- $ 11,318,797 ------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 0.0%+ 950,000 Alpha Natural Resources, Inc., 6.0%, 6/1/19 (f) $ 30,875 --------------- Total Energy $ 65,472,377 ------------------------------------------------------------------------------------------------------- MATERIALS -- 4.3% Commodity Chemicals -- 1.2% 2,145,000 Axiall Corp., 4.875%, 5/15/23 $ 2,064,562 680,000 Hexion, Inc., 6.625%, 4/15/20 623,050 2,430,000 Hexion, Inc., 9.0%, 11/15/20 1,725,300 950,000 Rain CII Carbon LLC, 8.0%, 12/1/18 (144A) 928,625 2,375,000 Rain CII Carbon LLC, 8.25%, 1/15/21 (144A) 2,321,562 2,500,000 Tronox Finance LLC, 6.375%, 8/15/20 2,050,000 2,535,000 Tronox Finance LLC, 7.5%, 3/15/22 (144A) 2,078,700 --------------- $ 11,791,799 ------------------------------------------------------------------------------------------------------- Diversified Chemicals -- 0.2% 2,350,000 WR Grace & Co-Conn, 5.625%, 10/1/24 (144A) $ 2,397,000 ------------------------------------------------------------------------------------------------------- Specialty Chemicals -- 0.4% 1,695,000 A Schulman, Inc., 6.875%, 6/1/23 (144A) $ 1,716,188 1,875,000 Rentech Nitrogen Partners LP, 6.5%, 4/15/21 (144A) 1,832,812 --------------- $ 3,549,000 ------------------------------------------------------------------------------------------------------- Metal & Glass Containers -- 0.5% 1,306,630 Ardagh Finance Holdings SA, 8.625%, (0.00% Cash, 8.625% PIK) 6/15/19 (144A) (PIK) $ 1,365,428 1,000,000 Ardagh Packaging Finance Plc, 6.75%, 1/31/21 (144A) 1,025,000 2,800,000 Coveris Holdings SA, 7.875%, 11/1/19 (144A) 2,764,132 --------------- $ 5,154,560 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 33 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Paper Packaging -- 0.3% 200,000 Coveris Holding Corp., 10.0%, 6/1/18 (144A) $ 209,000 2,350,000 Sealed Air Corp., 6.875%, 7/15/33 (144A) 2,397,000 --------------- $ 2,606,000 ------------------------------------------------------------------------------------------------------- Diversified Metals & Mining -- 0.5% 465,000 Ausdrill Finance Pty, Ltd., 6.875%, 11/1/19 (144A) $ 360,375 4,385,000 FMG Resources August 2006 Pty, Ltd., 9.75%, 3/1/22 (144A) 4,034,200 50,000 Prince Mineral Holding Corp., 11.5%, 12/15/19 (144A) 45,250 --------------- $ 4,439,825 ------------------------------------------------------------------------------------------------------- Gold -- 0.1% 1,200,000 IAMGOLD Corp., 6.75%, 10/1/20 (144A) $ 882,000 ------------------------------------------------------------------------------------------------------- Steel -- 0.7% 1,950,000 Cliffs Natural Resources, Inc., 8.25%, 3/31/20 (144A) $ 1,769,625 745,000 Commercial Metals Co., 4.875%, 5/15/23 681,675 1,350,000 JMC Steel Group, Inc., 8.25%, 3/15/18 (144A) 1,198,125 1,455,000 Steel Dynamics, Inc., 5.125%, 10/1/21 1,451,362 1,760,000 SunCoke Energy Partners LP, 7.375%, 2/1/20 (144A) 1,724,800 --------------- $ 6,825,587 ------------------------------------------------------------------------------------------------------- Forest Products -- 0.1% 1,460,000 Millar Western Forest Products, Ltd., 8.5%, 4/1/21 $ 1,372,400 ------------------------------------------------------------------------------------------------------- Paper Products -- 0.3% 435,000 Appvion, Inc., 9.0%, 6/1/20 (144A) $ 239,250 515,000 Rayonier AM Products, Inc., 5.5%, 6/1/24 (144A) 436,462 2,155,000 Resolute Forest Products, Inc., 5.875%, 5/15/23 1,799,425 --------------- $ 2,475,137 --------------- Total Materials $ 41,493,308 ------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 2.5% Aerospace & Defense -- 0.7% 1,280,000 DigitalGlobe, Inc., 5.25%, 2/1/21 (144A) $ 1,228,800 1,885,000 DynCorp International, Inc., 10.375%, 7/1/17 1,432,600 1,615,000 LMI Aerospace, Inc., 7.375%, 7/15/19 1,562,512 1,875,000 Lockheed Martin Corp., 3.8%, 3/1/45 1,663,843 550,000 Triumph Group, Inc., 5.25%, 6/1/22 541,750 --------------- $ 6,429,505 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 34 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Building Products -- 0.2% 1,755,000 Griffon Corp., 5.25%, 3/1/22 $ 1,711,125 ------------------------------------------------------------------------------------------------------- Construction & Engineering -- 0.1% 1,685,000 MasTec, Inc., 4.875%, 3/15/23 $ 1,470,162 ------------------------------------------------------------------------------------------------------- Electrical Components & Equipment -- 0.3% 1,210,000 EnerSys, 5.0%, 4/30/23 (144A) $ 1,182,775 2,090,000 General Cable Corp., 5.75%, 10/1/22 1,917,575 --------------- $ 3,100,350 ------------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.3% 225,000 JB Poindexter & Co., Inc., 9.0%, 4/1/22 (144A) $ 243,562 2,505,000 Waterjet Holdings, Inc., 7.625%, 2/1/20 (144A) 2,573,888 --------------- $ 2,817,450 ------------------------------------------------------------------------------------------------------- Construction & Farm Machinery & Heavy Trucks -- 0.1% 350,000 Commercial Vehicle Group, Inc., 7.875%, 4/15/19 $ 360,500 645,000 Meritor, Inc., 6.25%, 2/15/24 646,612 555,000 Titan International, Inc., 6.875%, 10/1/20 490,687 --------------- $ 1,497,799 ------------------------------------------------------------------------------------------------------- Industrial Machinery -- 0.5% 2,250,000 Apex Tool Group LLC, 7.0%, 2/1/21 (144A) $ 2,013,750 1,270,000 EnPro Industries, Inc., 5.875%, 9/15/22 1,282,700 63,000 Liberty Tire Recycling LLC, 11.0%, 3/31/21 (0.0% cash, 11.0% PIK) (144A) (PIK) (e) 40,320 1,130,000 Xerium Technologies, Inc., 8.875%, 6/15/18 1,163,900 --------------- $ 4,500,670 ------------------------------------------------------------------------------------------------------- Trading Companies & Distributors -- 0.3% 2,200,000 H&E Equipment Services, Inc., 7.0%, 9/1/22 $ 2,189,000 50,000 TRAC Intermodal LLC, 11.0%, 8/15/19 54,250 640,000 United Rentals North America, Inc., 5.75%, 11/15/24 625,600 --------------- $ 2,868,850 --------------- Total Capital Goods $ 24,395,911 ------------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 1.1% Commercial Printing -- 0.3% 3,455,000 Cenveo Corp., 6.0%, 8/1/19 (144A) $ 3,092,225 ------------------------------------------------------------------------------------------------------- Environmental & Facilities Services -- 0.1% 500,000 Safway Group Holding LLC, 7.0%, 5/15/18 (144A) $ 510,000 ------------------------------------------------------------------------------------------------------- Diversified Support Services -- 0.5% 2,580,000 NANA Development Corp., 9.5%, 3/15/19 (144A) $ 2,425,200 2,005,000 TMS International Corp., 7.625%, 10/15/21 (144A) 1,943,779 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 35 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Diversified Support Services -- (continued) 635,000 Transfield Services, Ltd., 8.375%, 5/15/20 (144A) $ 669,925 --------------- $ 5,038,904 ------------------------------------------------------------------------------------------------------- Research & Consulting Services -- 0.2% 2,065,000 CEB, Inc., 5.625%, 6/15/23 (144A) $ 2,070,162 --------------- Total Commercial Services & Supplies $ 10,711,291 ------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.9% Air Freight & Logistics -- 0.1% 1,375,000 XPO Logistics, Inc., 7.875%, 9/1/19 (144A) $ 1,469,531 ------------------------------------------------------------------------------------------------------- Airlines -- 0.5% 1,960,000 Gol LuxCo SA, 8.875%, 1/24/22 (144A) $ 1,577,800 2,960,000 Intrepid Aviation Group Holdings LLC, 6.875%, 2/15/19 (144A) 2,760,200 145,036 US Airways 2013-1 Class B Pass Through Trust, 5.375%, 11/15/21 149,024 --------------- $ 4,487,024 ------------------------------------------------------------------------------------------------------- Railroads -- 0.2% 1,015,000 Florida East Coast Holdings Corp., 6.75%, 5/1/19 (144A) $ 1,025,150 1,330,000 Florida East Coast Holdings Corp., 9.75%, 5/1/20 (144A) 1,256,850 --------------- $ 2,282,000 ------------------------------------------------------------------------------------------------------- Trucking -- 0.1% 760,000 Jack Cooper Holdings Corp., 9.25%, 6/1/20 (144A) $ 697,300 ------------------------------------------------------------------------------------------------------- Airport Services -- 0.0%+ 135,520 Aeropuertos Argentina 2000 SA, 10.75%, 12/1/20 (144A) $ 144,735 --------------- Total Transportation $ 9,080,590 ------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.3% Auto Parts & Equipment -- 0.3% 2,675,000 Stackpole International Intermediate, 7.75%, 10/15/21 (144A) $ 2,561,312 --------------- Total Automobiles & Components $ 2,561,312 ------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 1.5% Homebuilding -- 1.0% 2,375,000 Brookfield Residential Properties, Inc., 6.375%, 5/15/25 (144A) $ 2,309,688 4,305,000 KB Home, 7.625%, 5/15/23 4,509,488 50,000 KB Home, Inc., 8.0%, 3/15/20 55,250 The accompanying notes are an integral part of these financial statements. 36 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Homebuilding -- (continued) 950,000 Rialto Holdings LLC, 7.0%, 12/1/18 (144A) $ 978,500 1,840,000 Taylor Morrison Communities, Inc., 5.875%, 4/15/23 1,842,300 205,000 The Ryland Group, Inc., 5.375%, 10/1/22 207,562 --------------- $ 9,902,788 ------------------------------------------------------------------------------------------------------- Textiles -- 0.5% 500,000 AVINTIV Specialty Materials, Inc., 6.875%, 6/1/19 (144A) $ 510,000 4,445,000 Springs Industries, Inc., 6.25%, 6/1/21 4,422,775 --------------- $ 4,932,775 --------------- Total Consumer Durables & Apparel $ 14,835,563 ------------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 2.1% Casinos & Gaming -- 1.1% 2,835,000 MGM Resorts International, 6.0%, 3/15/23 $ 2,884,612 4,100,000 Scientific Games International, Inc., 10.0%, 12/1/22 3,982,125 3,125,000 Scientific Games International, Inc., 6.25%, 9/1/20 2,487,359 1,120,000 Wynn Macau Ltd., 5.25%, 10/15/21 (144A) 1,065,400 --------------- $ 10,419,496 ------------------------------------------------------------------------------------------------------- Hotels, Resorts & Cruise Lines -- 0.2% 1,785,000 Sabre GLBL, Inc., 5.375%, 4/15/23 (144A) $ 1,776,075 ------------------------------------------------------------------------------------------------------- Education Services -- 0.0%+ 100,000 Cambium Learning Group, Inc., 9.75%, 2/15/17 $ 101,000 ------------------------------------------------------------------------------------------------------- Specialized Consumer Services -- 0.8% 4,390,000 Constellis Holdings LLC, 9.75%, 5/15/20 (144A) $ 4,192,450 2,635,000 Sotheby's, 5.25%, 10/1/22 (144A) 2,575,712 855,000 StoneMor Partners LP, 7.875%, 6/1/21 889,200 --------------- $ 7,657,362 --------------- Total Consumer Services $ 19,953,933 ------------------------------------------------------------------------------------------------------- MEDIA -- 1.7% Broadcasting -- 0.3% 1,505,000 Gannett Co., Inc., 6.375%, 10/15/23 $ 1,591,538 1,060,000 Univision Communications, Inc., 5.125%, 2/15/25 (144A) 1,062,650 --------------- $ 2,654,188 ------------------------------------------------------------------------------------------------------- Cable & Satellite -- 0.5% 165,000 CCO Holdings LLC, 5.75%, 1/15/24 $ 167,991 1,440,000 CCO Holdings LLC, 5.75%, 9/1/23 1,474,200 1,625,000 Comcast Corp., 4.75%, 3/1/44 1,698,372 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 37 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Cable & Satellite -- (continued) 1,720,000 DISH DBS Corp., 5.875%, 11/15/24 $ 1,668,400 --------------- $ 5,008,963 ------------------------------------------------------------------------------------------------------- Movies & Entertainment -- 0.8% 2,000,000 Regal Entertainment Group, Inc., 5.75%, 2/1/25 $ 1,942,500 2,650,000 SFX Entertainment, Inc., 9.625%, 2/1/19 (144A) 2,265,750 1,900,000 WMG Acquisition Corp., 5.625%, 4/15/22 (144A) 1,919,000 1,625,000 WMG Acquisition Corp., 6.75%, 4/15/22 (144A) 1,568,125 --------------- $ 7,695,375 ------------------------------------------------------------------------------------------------------- Publishing -- 0.1% 1,000,000 MPL 2 Acquisition Canco, Inc., 9.875%, 8/15/18 (144A) $ 1,052,500 --------------- Total Media $ 16,411,026 ------------------------------------------------------------------------------------------------------- RETAILING -- 1.5% Department Stores -- 0.3% 1,550,000 Argos Merger Sub, Inc., 7.125%, 3/15/23 (144A) $ 1,639,125 1,645,000 Dollar Tree, Inc., 5.75%, 3/1/23 (144A) 1,735,475 --------------- $ 3,374,600 ------------------------------------------------------------------------------------------------------- Computer & Electronics Retail -- 0.3% 1,985,000 Rent-A-Center, Inc., 4.75%, 5/1/21 $ 1,736,875 1,135,000 Rent-A-Center, Inc., 6.625%, 11/15/20 1,122,231 --------------- $ 2,859,106 ------------------------------------------------------------------------------------------------------- Specialty Stores -- 0.5% 4,150,000 Outerwall, Inc., 5.875%, 6/15/21 $ 3,952,875 460,000 Petco Holdings, Inc., 8.5%, 10/15/17 (8.50% Cash, 9.25% PIK) (144A) (PIK) 472,362 250,000 Radio Systems Corp., 8.375%, 11/1/19 (144A) 264,375 --------------- $ 4,689,612 ------------------------------------------------------------------------------------------------------- Automotive Retail -- 0.4% 4,130,000 DriveTime Automotive Group, Inc., 8.0%, 6/1/21 (144A) $ 3,880,065 --------------- Total Retailing $ 14,803,383 ------------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.4% Food Distributors -- 0.1% 685,000 KeHE Distributors LLC, 7.625%, 8/15/21 (144A) $ 724,388 ------------------------------------------------------------------------------------------------------- Food Retail -- 0.3% 455,000 Darling Ingredients, Inc., 5.375%, 1/15/22 $ 460,688 2,825,000 Tops Holding LLC, 8.0%, 6/15/22 (144A) 2,803,812 --------------- $ 3,264,500 --------------- Total Food & Staples Retailing $ 3,988,888 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 38 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 1.3% Agricultural Products -- 0.1% 270,000 Southern States Cooperative, Inc., 10.0%, 8/15/21 (144A) $ 245,700 550,000 Tonon Luxembourg SA, 10.5%, 5/14/24 (144A) 324,500 --------------- $ 570,200 ------------------------------------------------------------------------------------------------------- Packaged Foods & Meats -- 0.9% 214,000 Chiquita Brands International, Inc., 7.875%, 2/1/21 $ 229,515 1,710,000 Dole Food Co., Inc., 7.25%, 5/1/19 (144A) 1,735,650 125,000 FAGE Dairy Industry SA, 9.875%, 2/1/20 (144A) 130,938 325,000 JBS Investments GmbH, 7.75%, 10/28/20 (144A) 351,000 1,350,000 Pilgrim's Pride Corp., 5.75%, 3/15/25 (144A) 1,380,375 1,775,000 Post Holdings, Inc., 6.0%, 12/15/22 (144A) 1,721,750 3,375,000 Post Holdings, Inc., 6.75%, 12/1/21 (144A) 3,400,312 --------------- $ 8,949,540 ------------------------------------------------------------------------------------------------------- Tobacco -- 0.3% 3,300,000 Alliance One International, Inc., 9.875%, 7/15/21 $ 2,895,750 --------------- Total Food, Beverage & Tobacco $ 12,415,490 ------------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.5% Household Products -- 0.1% 1,205,000 Energizer Holdings, Inc., 5.5%, 6/15/25 (144A) $ 1,177,888 ------------------------------------------------------------------------------------------------------- Personal Products -- 0.4% 965,256 Monitronics International, Inc., 9.125%, 4/1/20 $ 936,298 2,400,000 Revlon Consumer Products Corp., 5.75%, 2/15/21 2,400,000 --------------- $ 3,336,298 --------------- Total Household & Personal Products $ 4,514,186 ------------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 1.6% Health Care Equipment -- 0.2% 1,675,000 Medtronic, Inc., 4.625%, 3/15/45 (144A) $ 1,694,613 ------------------------------------------------------------------------------------------------------- Health Care Supplies -- 0.2% 1,345,000 Sterigenics-Nordion Holdings LLC, 6.5%, 5/15/23 (144A) $ 1,375,262 ------------------------------------------------------------------------------------------------------- Health Care Services -- 0.3% 1,555,000 BioScrip, Inc., 8.875%, 2/15/21 $ 1,282,875 1,210,000 ExamWorks Group, Inc., 5.625%, 4/15/23 1,241,762 430,000 Kindred Healthcare, Inc., 8.0%, 1/15/20 (144A) 465,475 80,000 Truven Health Analytics, Inc., 10.625%, 6/1/20 83,600 --------------- $ 3,073,712 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 39 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Health Care Facilities -- 0.9% 2,540,000 CHS, 6.875%, 2/1/22 $ 2,717,800 1,065,000 CHS, Inc., 8.0%, 11/15/19 1,119,570 3,175,000 Kindred Healthcare Inc., 6.375%, 4/15/22 3,250,406 2,085,000 Universal Hospital Services, Inc., 7.625%, 8/15/20 1,949,475 --------------- $ 9,037,251 ------------------------------------------------------------------------------------------------------- Health Care Technology -- 0.0%+ 100,000 MedAssets, Inc., 8.0%, 11/15/18 $ 103,125 --------------- Total Health Care Equipment & Services $ 15,283,963 ------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.9% Pharmaceuticals -- 0.9% 1,255,000 Endo Finance LLC, 5.375%, 1/15/23 (144A) $ 1,268,328 1,260,000 Endo Finance LLC, 5.75%, 1/15/22 (144A) 1,297,800 2,885,000 Endo, Ltd., 6.0%, 7/15/23 (144A) 3,000,400 3,000,000 Mallinckrodt International Finance SA, 5.5%, 4/15/25 (144A) 3,022,500 --------------- $ 8,589,028 --------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 8,589,028 ------------------------------------------------------------------------------------------------------- BANKS -- 0.9% Diversified Banks -- 0.6% 1,675,000 6.50 Bank of America Corp., Floating Rate Note, 10/23/49 $ 1,729,438 1,950,000 6.25 Bank of America Corp., Floating Rate Note, 9/29/49 1,951,814 2,100,000 5.88 Wells Fargo & Company, Floating Rate Note (Perpetual) 2,149,875 --------------- $ 5,831,127 ------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.3% 3,325,000 Provident Funding Associates LP, 6.75%, 6/15/21 (144A) $ 3,192,000 --------------- Total Banks $ 9,023,127 ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 1.6% Other Diversified Financial Services -- 0.5% IDR 23,720,000,000 European Investment Bank, 7.2%, 7/9/19 (144A) $ 1,634,843 1,375,000 General Electric Capital Corp., 5.875%, 1/14/38 1,686,523 540,000 6.75 JPMorgan Chase & Co., Floating Rate Note, 1/29/49 572,062 325,000 Summit Midstream Holdings LLC, 7.5%, 7/1/21 339,625 --------------- $ 4,233,053 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 40 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Specialized Finance -- 0.5% 100,000 Cantor Fitzgerald LP, 7.875%, 10/15/19 (144A) $ 111,921 1,995,000 Nationstar Mortgage LLC, 6.5%, 6/1/22 1,815,450 1,915,000 Nationstar Mortgage LLC, 6.5%, 7/1/21 1,788,131 455,000 Nationstar Mortgage LLC, 6.5%, 8/1/18 450,732 450,000 Oxford Finance LLC, 7.25%, 1/15/18 (144A) 461,250 --------------- $ 4,627,484 ------------------------------------------------------------------------------------------------------- Consumer Finance -- 0.1% 1,290,000 TMX Finance LLC, 8.5%, 9/15/18 (144A) $ 1,025,550 ------------------------------------------------------------------------------------------------------- Asset Management & Custody Banks -- 0.2% 1,800,000 JBS Investment Management, Ltd., 7.25%, 4/3/24 $ 1,849,500 400,000 4.50 The Bank of New York Mellon Corp., Floating Rate Note (Perpetual) 370,000 --------------- $ 2,219,500 ------------------------------------------------------------------------------------------------------- Diversified Capital Markets -- 0.3% 3,300,000 Quicken Loans, Inc., 5.75%, 5/1/25 (144A) $ 3,192,750 --------------- Total Diversified Financials $ 15,298,337 ------------------------------------------------------------------------------------------------------- INSURANCE -- 2.2% Life & Health Insurance -- 0.0%+ 300,000 5.65 Voya Financial, Inc., Floating Rate Note, 5/15/53 $ 306,480 ------------------------------------------------------------------------------------------------------- Reinsurance -- 2.2% 187,586 Altair Re, Variable Rate Notes, 6/30/16 (g) $ 31,965 1,000,000 Arlington Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 8/31/16 (g) 1,014,200 250,000 4.37 Blue Danube II, Ltd., Floating Rate Note, 5/23/16 (Cat Bond) (144A) 248,750 250,000 5.26 Caelus Re, Ltd., Floating Rate Note, 3/7/16 (Cat Bond) (144A) 245,725 500,000 6.86 Caelus Re, Ltd., Floating Rate Note, 4/7/17 (Cat Bond) (144A) 505,800 700,000 Carnoustie Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 2/19/16 (g) 749,280 800,000 Clarendon Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 6/15/16 (g) 773,840 500,000 0.00 Compass Re II, Ltd., Floating Rate Note, 12/8/15 (Cat Bond) 478,900 275,000 5.01 Embarcadero Reinsurance, Ltd., Floating Rate Note, 2/7/17 (Cat Bond) (144A) 275,138 1,141,875 Exeter Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/7/16 (g) 1,161,401 550,000 2.21 Golden State Re II, Ltd., Floating Rate Note, 1/8/19 (Cat Bond) (144A) 546,700 The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 41 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Reinsurance -- (continued) 1,300,000 Gullane Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/22/17 (g) $ 1,375,270 420,500 Hereford Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/7/16 (g) 435,091 700,000 3.76 Kilimanjaro Re, Ltd., Floating Rate Note, 11/25/19 (Cat Bond) (144A) 688,800 1,000,000 Lorenzo Re, Ltd., Variable Rate Notes, 3/31/18 (g) 1,031,900 800,400 Muirfield Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/12/16 (g) 818,729 500,000 8.60 Mythen Re, Ltd., Series 2012-2 Class A, Floating Rate Note, 1/5/17 (Cat Bond) (144A) 504,650 250,000 11.83 Mythen Re, Ltd., Series 2012-2 Class A, Floating Rate Note, 11/10/16 (Cat Bond) (144A) 248,850 1,200,000 Pangaea Re, Series 2015-1, Principal at Risk Notes, 2/1/19 (g) 1,288,680 2,000,000 Pangaea Re, Series 2015-2, Principal at Risk Notes, 11/30/19 (g) 2,031,600 1,050,000 Pangaea Re., Variable Rate Notes, 7/1/18 (g) 18,900 500,000 8.61 Queen Street VII Re, Ltd., Floating Rate Note, 4/8/16 (Cat Bond) (144A) 500,650 600,000 5.76 Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 606,960 500,000 4.51 Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 501,250 250,000 10.01 Residential Reinsurance 2012, Ltd., Floating Rate Note, 6/6/16 (Cat Bond) (144A) 259,150 500,000 3.02 Sanders Re, Ltd., Floating Rate Note, 5/25/18 (Cat Bond) (144A) 485,000 250,000 4.02 Sanders Re, Ltd., Floating Rate Note, 5/5/17 (Cat Bond) (144A) 245,925 1,400,000 Sector Re V, Ltd., Variable Rate Notes, 3/1/20 (144A) (g) 1,412,740 700,000 Silverton RE, Ltd., Variable Rate Notes, 9/18/17 (144A) (g) 776,020 250,000 16.26 Successor X, Ltd., Floating Rate Note, 11/10/15 (Cat Bond) (144A) 241,600 825,900 Troon Segregated Account (Kane SAC Ltd.), Variable Rate Notes, 1/12/16 (g) 839,527 800,000 Versutus Ltd., Series 2015-A, Variable Rate Notes, 12/31/2017 (g) 854,880 --------------- $ 21,197,871 --------------- Total Insurance $ 21,504,351 ------------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.5% Diversified REIT -- 0.1% 1,130,000 MPT Operating Partnership LP, 5.5%, 5/1/24 $ 1,163,900 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 42 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Specialized REIT -- 0.1% 1,038,146 AAF Holdings LLC, 12.0%, 7/1/19 (144A) (12.0% cash, 0.0% PIK) (PIK) $ 1,030,360 ------------------------------------------------------------------------------------------------------- Diversified Real Estate Activities -- 0.2% 1,260,000 Alam Synergy Pte, Ltd., 9.0%, 1/29/19 (144A) $ 1,285,200 ------------------------------------------------------------------------------------------------------- Real Estate Services -- 0.1% 1,210,000 Kennedy-Wilson, Inc., 5.875%, 4/1/24 $ 1,199,412 --------------- Total Real Estate $ 4,678,872 ------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.8% Internet Software & Services -- 0.2% 1,245,000 Bankrate, Inc., 6.125%, 8/15/18 (144A) $ 1,210,762 325,000 j2 Global, Inc., 8.0%, 8/1/20 349,781 --------------- $ 1,560,543 ------------------------------------------------------------------------------------------------------- Data Processing & Outsourced Services -- 0.4% 1,700,000 Audatex North America, Inc., 6.125%, 11/1/23 (144A) $ 1,661,750 130,000 First Data Corp., 11.75%, 8/15/21 147,550 2,650,000 NeuStar, Inc., 4.5%, 1/15/23 2,252,500 --------------- $ 4,061,800 ------------------------------------------------------------------------------------------------------- Systems Software -- 0.2% 1,825,000 Oracle Corp., 4.125%, 5/15/45 $ 1,723,419 --------------- Total Software & Services $ 7,345,762 ------------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 0.3% Communications Equipment -- 0.2% 570,000 CommScope Holding Co., Inc., 6.625%, 6/1/20 (6.625% Cash, 7.375% PIK) (144A) (PIK) $ 592,800 1,190,000 CommScope Technologies Finance LLC, 6.0%, 6/15/25 (144A) 1,175,125 --------------- $ 1,767,925 ------------------------------------------------------------------------------------------------------- Electronic Equipment Manufacturers -- 0.1% 1,150,000 Zebra Technologies Corp., 7.25%, 10/15/22 (144A) $ 1,259,250 --------------- Total Technology Hardware & Equipment $ 3,027,175 ------------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.6% Semiconductor Equipment -- 0.2% 2,100,000 Entegris, Inc., 6.0%, 4/1/22 (144A) $ 2,152,500 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 43 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Semiconductors -- 0.4% 395,000 Advanced Micro Devices, Inc., 6.75%, 3/1/19 $ 287,362 2,600,000 Advanced Micro Devices, Inc., 7.0%, 7/1/24 1,729,000 835,000 Advanced Micro Devices, Inc., 7.5%, 8/15/22 576,150 1,225,000 Micron Technology, Inc., 5.5%, 2/1/25 (144A) 1,186,719 --------------- $ 3,779,231 --------------- Total Semiconductors & Semiconductor Equipment $ 5,931,731 ------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 2.4% Integrated Telecommunication Services -- 1.6% 200,000 CenturyLink, Inc., 5.8%, 3/15/22 $ 194,250 700,000 CenturyLink, Inc., 6.45%, 6/15/21 714,000 1,325,000 CenturyLink, Inc., 6.75%, 12/1/23 1,328,312 450,000 CenturyLink, Inc., 7.6%, 9/15/39 400,500 4,200,000 Frontier Communications Corp., 7.125%, 1/15/23 3,790,500 157,000 Frontier Communications Corp., 8.5%, 4/15/20 162,495 160,000 Frontier Communications Corp., 8.75%, 4/15/22 158,700 800,000 Frontier Communications Corp., 9.25%, 7/1/21 832,000 1,200,000 GCI, Inc., 6.75%, 6/1/21 1,227,000 3,000,000 GCI, Inc., 6.875%, 4/15/25 3,052,500 770,000 Windstream Corp., 7.5%, 6/1/22 633,325 2,680,000 Windstream Services LLC, 6.375%, 8/1/23 2,077,000 590,000 Windstream Services LLC, 7.75%, 10/1/21 498,550 --------------- $ 15,069,132 ------------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 0.8% 200,000 Altice Finco SA, 8.125%, 1/15/24 (144A) $ 208,000 2,455,000 Sprint Corp., 7.125%, 6/15/24 2,246,325 2,000,000 Sprint Corp., 7.25%, 9/15/21 1,912,500 3,000,000 T-Mobile USA, Inc., 6.0%, 3/1/23 3,127,500 215,000 T-Mobile USA, Inc., 6.5%, 1/15/24 227,027 335,000 T-Mobile USA, Inc., 6.836%, 4/28/23 358,450 100,000 Unison Ground Lease Funding LLC, 5.78%, 3/15/43 (144A) 99,861 100,000 WCP Issuer llc, 6.657%, 8/15/20 (144A) 104,975 --------------- $ 8,284,638 --------------- Total Telecommunication Services $ 23,353,770 ------------------------------------------------------------------------------------------------------- UTILITIES -- 1.7% Electric Utilities -- 0.5% 865,000 ContourGlobal Power Holdings SA, 7.125%, 6/1/19 (144A) $ 899,600 The accompanying notes are an integral part of these financial statements. 44 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Electric Utilities -- (continued) 2,765,000 Talen Energy Supply LLC, 5.125%, 7/15/19 (144A) $ 2,682,050 925,000 Talen Energy Supply LLC, 6.5%, 6/1/25 (144A) 906,500 --------------- $ 4,488,150 ------------------------------------------------------------------------------------------------------- Gas Utilities -- 0.3% 625,000 Ferrellgas LP, 6.5%, 5/1/21 $ 626,562 2,305,000 Ferrellgas LP, 6.75%, 1/15/22 2,322,288 --------------- $ 2,948,850 ------------------------------------------------------------------------------------------------------- Independent Power Producers & Energy Traders -- 0.7% 2,500,000 AES Corp., 5.5%, 4/15/25 $ 2,393,750 2,825,000 NRG Energy, Inc., 6.25%, 5/1/24 2,775,562 600,000 NRG Energy, Inc., 6.25%, 7/15/22 601,500 635,000 NRG Energy, Inc., 6.625%, 3/15/23 644,525 825,000 TerraForm Power Operating LLC, 6.125%, 6/15/25 (144A) 827,062 --------------- $ 7,242,399 ------------------------------------------------------------------------------------------------------- Renewable Electricity -- 0.2% 2,000,000 TerraForm Power, 9.75%, 8/15/22 (144A) $ 1,975,060 --------------- Total Utilities $ 16,654,459 ------------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $392,283,697) $ 371,327,833 ------------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 0.2% IDR 11,501,000,000 Indonesia Treasury Bond, 8.375%, 3/15/24 $ 837,441 IDR 11,014,000,000 Indonesia Treasury Bond, 9.0%, 3/15/29 828,442 ------------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $1,905,424) $ 1,665,883 ------------------------------------------------------------------------------------------------------- MUNICIPAL BONDS -- 0.8% (h) Higher Municipal Education -- 0.7% 900,000 New Jersey Educational Facilities Authority, Princeton University Series D, 4.0%, 7/1/45 $ 938,178 5,000,000 University of Virginia, Green Bond Series A, 5.0%, 4/1/45 5,779,050 --------------- $ 6,717,228 ------------------------------------------------------------------------------------------------------- Municipal School District -- 0.1% 800,000 Frisco Independent School District, 4.0%, 8/15/40 (i) $ 815,904 500,000 Frisco Independent School District, 4.0%, 8/15/45 (i) 507,930 --------------- $ 1,323,834 ------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (Cost $7,985,770) $ 8,041,062 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 45 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- SENIOR FLOATING RATE LOAN INTERESTS -- 0.9%** ENERGY -- 0.3% Oil & Gas Drilling -- 0.1% 1,034,680 7.50 Jonah Energy LLC, Term Loan (Second Lien), 5/8/21 $ 946,732 ------------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.2% 856,610 8.38 Fieldwood Energy LLC, Closing Date Loan (Second Lien), 9/30/20 $ 473,813 2,955,000 8.50 Templar Energy LLC, New Term Loan, 11/25/20 1,856,724 --------------- $ 2,330,537 --------------- Total Energy $ 3,277,269 ------------------------------------------------------------------------------------------------------- MATERIALS -- 0.0%+ Diversified Metals & Mining -- 0.0%+ 372,500 3.75 Fortescue Metals Group Ltd., Bank Loan, 6/30/19 $ 306,187 --------------- Total Materials $ 306,187 ------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.0%+ Electrical Components & Equipment -- 0.0%+ 229,612 5.25 Pelican Products, Inc., Term Loan (First Lien), 4/8/20 $ 230,760 ------------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.0%+ 50,532 8.25 Filtration Group Corp., Initial Term Loan (Second Lien), 11/15/21 $ 50,932 --------------- Total Capital Goods $ 281,692 ------------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.0%+ Security & Alarm Services -- 0.0%+ 26,232 4.25 Monitronics International, Inc., Term B Loan, 3/23/18 $ 26,355 --------------- Total Commercial Services & Supplies $ 26,355 ------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.0%+ Leisure Products -- 0.0%+ 113,143 3.75 Bombardier Recreational Products, Inc., Term B-2 Loan, 1/30/19 $ 113,527 --------------- Total Consumer Durables & Apparel $ 113,527 ------------------------------------------------------------------------------------------------------- MEDIA -- 0.1% Broadcasting -- 0.0%+ 58,600 4.00 Univision Communications, Inc., Replacement First-Lien Term Loan, 3/1/20 $ 58,641 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 46 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Publishing -- 0.1% 886,500 6.25 McGraw-Hill School Education Holdings llc, Term B Loan, 12/18/19 $ 893,703 --------------- Total Media $ 952,344 ------------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.1% Food Distributors -- 0.1% 700,000 8.25 Del Monte Foods Consumer Products,Term Loan (Second Lien), 5/26/21 $ 638,312 --------------- Total Food & Staples Retailing $ 638,312 ------------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.1% Health Care Services -- 0.1% 67,836 0.00 Ardent Legacy Acquisitions, Inc., Tranche B Term Loan (First Lien), 7/31/21 (j) $ 68,260 182,576 7.50 Ardent Medical Services, Inc., 1st Lien Term Loan, 5/2/18 183,109 89,103 6.25 BioScrip, Inc., Initial Term B Loan, 7/31/20 88,713 44,551 6.50 BioScrip, Inc., Term Loan, 7/31/20 44,357 --------------- $ 384,439 --------------- Total Health Care Equipment & Services $ 384,439 ------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.0%+ Biotechnology -- 0.0%+ 250,000 7.00 Lantheus Medical Imaging, Inc., Tranche B Term Loan (First Lien), 6/25/22 $ 247,188 --------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 247,188 ------------------------------------------------------------------------------------------------------- BANKS -- 0.0%+ Thrifts & Mortgage Finance -- 0.0%+ 108,016 3.94 Ocwen Financial Corp., Initial Term Loan, 1/15/18 $ 107,864 --------------- Total Banks $ 107,864 ------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.2% Investment Banking & Brokerage -- 0.2% 2,025,000 8.28 MJ Acquisition Corp., Term Loan (Second Lien), 4/8/23 $ 2,036,340 --------------- Total Diversified Financials $ 2,036,340 ------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.1% IT Consulting & Other Services -- 0.1% 742,500 5.75 Evergreen Skills Lux Sarl, Initial Term Loan (First Lien), 4/23/21 $ 724,247 ------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 47 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ------------------------------------------------------------------------------------------------------- Application Software -- 0.0%+ 95,549 4.25 Vertafore, Inc., Term Loan (2013), 10/3/19 $ 95,823 --------------- Total Software & Services $ 820,070 ------------------------------------------------------------------------------------------------------- TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $10,726,062) $ 9,191,587 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- Shares ------------------------------------------------------------------------------------------------------- EXCHANGE TRADED FUNDS -- 1.3% DIVERSIFIED FINANCIALS -- 1.3% Asset Management & Custody Banks -- 1.3% 671,115 BlackRock MuniVest Fund, Inc. $ 6,409,148 463,299 BlackRock MuniYield Fund, Inc. 6,476,920 --------------- $ 12,886,068 --------------- Total Diversified Financials $ 12,886,068 ------------------------------------------------------------------------------------------------------- TOTAL EXCHANGE TRADED FUNDS (Cost $12,901,493) $ 12,886,068 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- Shares ------------------------------------------------------------------------------------------------------- PURCHASED PUT OPTIONS -- 0.1% 45,092 SPX @ 2,001.46, 10/16/15 $ 1,041,482 ------------------------------------------------------------------------------------------------------- TOTAL PURCHASED PUT OPTIONS (Premiums paid $1,894,766) $ 1,041,482 ------------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 94.2% (Cost $947,882,015) (a) $ 923,255,656 ------------------------------------------------------------------------------------------------------- WRITTEN PUT OPTIONS -- (0.0)%+ (45,092) SPX @ 1,790.78, 10/16/15 $ (245,730) (349) Keurig Green Mountain @ 70.00, 8/21/15 (80,445) ------------------------------------------------------------------------------------------------------- TOTAL WRITTEN PUT OPTIONS (Premiums receive $665,695) $ (326,175) ------------------------------------------------------------------------------------------------------- WRITTEN CALL OPTIONS -- (0.0)%+ (349) Keurig Green Mountain @ 71.00, 8/21/15 $ (230,340) (349) Keurig Green Mountain @ 73.00, 8/21/15 (188,460) ------------------------------------------------------------------------------------------------------- TOTAL WRITTEN CALL OPTIONS (Premiums receive $317,640) $ (418,800) ------------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 4.6% $ 44,004,045 ------------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 966,514,726 ======================================================================================================= + Amount rounds to less than 0.1% or (0.1)%. * Non-income producing security. The accompanying notes are an integral part of these financial statements. 48 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 (PIK) Represents a pay-in-kind security. (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At July 31, 2015, the value of these securities amounted to $191,206,392 or 19.8% of total net assets. REIT Real Estate Investment Trust. (Step) Step up bond issued with an initial coupon rate which converts to a higher rate at a later date. (Cat Bond) Catastrophe or Event Linked Bond. At July 31, 2015, the value of these securities amounted to $6,583,848 or 0.7% of total net assets. See Notes to Financial Statements -- Note 1H. (Perpetual) Security with no stated maturity date. REMICS Real Estate Mortgage Investment Conduits. ** Senior floating rate loan interests in which the Fund invests generally pay interest at rates that are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the lending rate offered by one or more major European banks, such as LIBOR (London InterBank Offered Rate), (ii) the prime rate offered by one or more major U.S. banks, (iii) the certificate of deposit or (iv) other base lending rates used by commercial lenders. The rate shown is the coupon rate at period end. (a) At July 31, 2015, the net unrealized depreciation on investments based on cost for federal income tax purposes of $949,975,787 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 36,499,318 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (63,219,449) ------------ Net unrealized depreciation $(26,720,131) ============ (b) Debt obligation with a variable interest rate. Rate shown is rate at period end. (c) Security represents the interest only portion payments on a pool of underlying mortgages or mortgage-backed securities. (e) Security is valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers). See Notes to Financial Statements -- Note 1A. (f) Security is in default and is non-income producing. (g) Structured reinsurance investment. At July 31, 2015, the value of these securities amounted to $14,614,023 or 1.5% of total net assets. See Notes to Financial Statements -- Note 1H. (h) Consists of Revenue Bonds unless otherwise indicated. (i) Represents a General Obligation bond. (j) Rate to be determined. (k) A portion of this security has been pledged as collateral for options contracts. Principal amounts are denominated in U.S. Dollars unless otherwise noted: IDR Indonesian Rupiah Purchases and sales of securities (excluding temporary cash investments) for the period ended July 31, 2015 aggregated $1,286,043,882, and $1,001,554,693, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 49 Schedule of Investments | 7/31/15 (continued) CREDIT DEFAULT SWAP AGREEMENTS -- SELL PROTECTION ------------------------------------------------------------------------------------------------------------- Notional Obligation Credit Expiration Premiums Unrealized Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date Paid Appreciation ------------------------------------------------------------------------------------------------------------- 2,000,000 Morgan MBIA 5.00% A- 12/20/15 $(110,000) $61,113 Stanley Insurance Capital Corp. Services LLC (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Based on Standard & Poor's rating of the issuer or weighted average of all the underlying securities of the index. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.). Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments). Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services) as Level 3. The following is a summary of the inputs used as of July 31, 2015, in valuing the Fund's assets: ---------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ---------------------------------------------------------------------------------------------- Convertible Corporate Bonds $ -- $3,227,797 $ -- $3,227,797 Preferred Stocks Transportation Air Freight & Logistics -- 35,927 -- 35,927 All Other Preferred Stocks 2,123,574 -- -- 2,123,574 Convertible Preferred Stocks Energy Oil & Gas Exploration & Production -- 170,276 -- 170,276 All Other Convertible Preferred Stocks 2,126,062 -- -- 2,126,062 Common Stocks Capital Goods Industrial Machinery -- -- 31 31 Commercial Services & Supplies Diversified Support Services 213,752 -- -- 213,752 Transportation Airlines 2,728,163 5,971,092 -- 8,699,255 Food & Staples Retailing Drug Retail 3,438,208 -- -- 3,438,208 The accompanying notes are an integral part of these financial statements. 50 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Food, Beverage & Tobacco Distillers & Vintners $ 11,090,117 $ -- $ -- $ 11,090,117 Packaged Foods & Meats 11,247,612 4,143,905 -- 15,391,517 Tobacco 7,733,489 13,342,311 -- 21,075,800 Health Care Equipment & Services Health Care Distributors 5,747,112 -- -- 5,747,112 Pharmaceuticals, Biotechnology & Life Sciences Biotechnology 7,817,654 -- -- 7,817,654 Pharmaceuticals 75,174,298 30,448,854 -- 105,623,152 Banks Diversified Banks 14,181,812 43,293,383 -- 57,475,195 Regional Banks 9,419,684 -- -- 9,419,684 Diversified Financials Asset Management & Custody Banks 33,076,117 1,377,893 -- 34,454,010 Real Estate Industrial REIT 1,007,857 6,321,089 -- 7,328,946 Specialized REIT 7,894,098 -- -- 7,894,098 Software & Services Internet Software & Services 9,701,508 -- -- 9,701,508 IT Consulting & Other Services 9,337,428 -- -- 9,337,428 Systems Software 12,535,821 -- -- 12,535,821 Technology Hardware & Equipment Communications Equipment 3,733,010 -- -- 3,733,010 Computer Storage & Peripherals 10,400,990 -- -- 10,400,990 Technology Hardware, Storage & Peripherals 4,051,743 3,793,367 -- 7,845,110 All Other Common Stocks -- 135,917,422 -- 135,917,422 Asset Backed Securities -- 9,844,868 -- 9,844,868 Collateralized Mortgage Obligations -- 16,433,417 -- 16,433,417 Corporate Bonds Capital Goods Industrial Machinery -- 4,460,350 40,320 4,500,670 Insurance Reinsurance -- 6,583,848 14,614,023 21,197,871 All Other Corporate Bonds -- 345,629,292 -- 345,629,292 Foreign Government Bonds -- 1,665,883 -- 1,665,883 Municipal Bonds -- 8,041,062 -- 8,041,062 Senior Floating Rate Loan Interests -- 9,191,587 -- 9,191,587 Exchange Traded Funds 12,886,068 -- -- 12,886,068 Purchased Put Options -- 1,041,482 -- 1,041,482 -------------------------------------------------------------------------------------------- Total $257,666,177 $ 650,935,105 $ 14,654,374 $923,255,656 ============================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 51 Schedule of Investments | 7/31/15 (continued) ------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------- Other Financial Instruments Net unrealized appreciation on futures contracts $18,975 $ -- $ -- $ 18,975 Net unrealized appreciation on written options 238,360 -- 238,360 Net unrealized appreciation on swap contracts -- 61,113 -- 61,113 Net unrealized depreciation on forward foreign currency contracts -- (146) -- (146) ------------------------------------------------------------------------------- Total Other Financial Instruments $18,975 $ 299,327 $ -- $318,302 =============================================================================== The following is a reconciliation of assets valued using significant observable inputs (Level 3): ------------------------------------------------------------------------------------------ Convertible Corporate Preferred Common Corporate Bond Stocks Stocks Bond Total ------------------------------------------------------------------------------------------ Balance as of 7/31/14 $ 25,000 $1,446,495 $ -- $ 1,555,050 $ 3,026,545 Realized gain (loss)(1) (3,750) (6,689) -- 223 (10,216) Change in unrealized appreciation (depreciation)(2) -- 176,300 -- (684,851) (508,551) Purchases -- 31 13,987,649 13,987,680 Sales (21,250) (169,611) -- (1,650,223) (1,841,084) Transfers in and out of Level 3 Categories (1,446,495) 1,446,495 -- Transfers in and out to Level 3* -- -- -- -- -- ------------------------------------------------------------------------------------------ Balance as of 7/31/15 $ -- $ -- $ 31 $14,654,343 $14,654,374 ========================================================================================== (1) Realized gain (loss) on these securities is included in the net realized gain (loss) from investments in the Statement of Operations. (2) Unrealized appreciation (depreciation) on these securities is included in the change in unrealized appreciation (depreciation) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. During the year ended July 31, 2015, there were no transfers between Levels 1, 2 and 3. Net change in unrealized appreciation (depreciation) of investments still held as of 7/31/15 $(1,332,525.00) -------------- The following is a summary of the fair valuation of certain Portfolio's assets as of July 31, 2015: -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Assets: Futures collateral $ -- $5,495,500 $-- $5,495,500 Options collateral -- 2,443,000 -- 2,443,000 Options collateral received from broker -- 778,983 -- 778,983 Variation margin for futures contracts 84,792 -- -- 84,792 -------------------------------------------------------------------------------------------- Total $ 84,792 $8,717,483 $-- $8,802,275 ============================================================================================ The accompanying notes are an integral part of these financial statements. 52 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Statement of Assets and Liabilities | 7/31/15 ASSETS: Investment in securities (cost $947,882,015) $ 923,255,656 Cash 33,287,698 Foreign Currencies (cost $1,628,630) 1,629,490 Futures collateral 5,495,500 Options collateral 2,443,000 Options collateral received from broker 778,983 Receivables -- Investment securities sold 5,700,206 Fund shares sold 5,289,193 Dividends 1,048,617 Interest 6,854,293 Due from Pioneer Investment Management, Inc. 124,593 Variation margin for futures contracts 84,792 Net unrealized appreciation on futures contracts 18,975 Net unrealized appreciation on swap contracts 61,113 Prepaid Expenses 61,301 ----------------------------------------------------------------------------------------- Total assets $ 986,133,410 ========================================================================================= LIABILITIES: Credit default swaps, premiums paid $ 110,000 Payables -- Investment securities purchased 16,144,388 Fund shares repurchased 2,272,765 Dividends 43,886 Trustee fees 3,731 Net unrealized depreciation on forward foreign currency contracts 146 Due to affiliates 155,224 Accrued expenses 143,569 Written options (premiums received $983,335) 744,975 ----------------------------------------------------------------------------------------- Total liabilities $ 19,618,684 ========================================================================================= NET ASSETS: Paid-in capital $1,011,633,276 Undistributed net investment income 4,227,839 Accumulated net realized loss on investments, foreign currency transactions, swap contracts and futures contracts (25,009,123) Net unrealized depreciation on investments (24,626,359) Net unrealized appreciation on futures contracts 18,975 Net unrealized appreciation on swap contracts 61,113 Net unrealized appreciation on written option contracts 238,360 Net unrealized depreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (29,355) ----------------------------------------------------------------------------------------- Total net assets $ 966,514,726 ========================================================================================= NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $266,898,878/23,933,966 shares) $ 11.15 Class C (based on $353,686,400/31,812,453 shares) $ 11.12 Class K (based on $37,935,226/3,401,056 shares) $ 11.15 Class R (based on $456,016/40,716 shares) $ 11.20 Class Y (based on $307,538,206/27,616,023 shares) $ 11.14 MAXIMUM OFFERING PRICE: Class A ($11.15 / 95.5%) $ 11.68 ========================================================================================= The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 53 Statement of Operations For the Year Ended 7/31/15 INVESTMENT INCOME: Interest (net of foreign taxes withheld of $80,359) $ 26,084,412 Dividends (net of foreign taxes withheld of $992,407) 27,872,105 -------------------------------------------------------------------------------------------------- Total investment income $ 53,956,517 -------------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 4,319,827 Transfer agent fees Class A 50,179 Class C 27,004 Class Y 8,553 Distribution fees Class A 601,574 Class C 3,052,123 Class R 96 Shareholder communication expense 745,953 Administrative reimbursement 254,405 Custodian fees 166,189 Registration fees 152,842 Professional fees 92,739 Printing expense 54,402 Fees and expenses of nonaffiliated Trustees 31,933 Miscellaneous 138,090 -------------------------------------------------------------------------------------------------- Total operating expenses $ 9,695,909 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (432,186) -------------------------------------------------------------------------------------------------- Net operating expenses $ 9,263,723 -------------------------------------------------------------------------------------------------- Net investment income $ 44,692,794 -------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, SWAP CONTRACTS, FUTURES CONTRACTS, WRITTEN OPTIONS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $(16,386,941) Futures contracts (8,018,520) Swap contracts 4,846,097 Foreign currency contracts and other assets and liabilities denominated in foreign currencies (1,070,129) $(20,629,493) -------------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $(39,496,319) Futures contracts (304,384) Written Option 238,360 Swap contracts (120,268) Foreign currency contracts and other assets and liabilities denominated in foreign currencies (294,910) $(39,977,521) -------------------------------------------------------------------------------------------------- Net loss on investments, futures contracts, swap contracts and foreign currency transactions $(60,607,014) -------------------------------------------------------------------------------------------------- Net decrease in net assets resulting from operations $(15,914,220) ================================================================================================== The accompanying notes are an integral part of these financial statements. 54 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Statement of Changes in Net Assets -------------------------------------------------------------------------------------------------- Year Ended Year Ended 7/31/15 7/31/14 -------------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 44,692,794 $ 22,351,386 Net realized loss on investments, futures contracts, swap contracts and foreign currency transactions (20,629,493) (2,121,104) Change in net unrealized appreciation (depreciation) on investments, futures contracts, option contracts, swap contracts, and foreign currency transactions (39,977,521) 14,666,344 -------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from operations $ (15,914,220) $ 34,896,626 ================================================================================================== DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.66 and $0.62 per share, respectively) $ (13,714,853) $ (6,109,178) Class C ($0.56 and $0.52 per share, respectively) (14,917,936) (4,936,682) Class K ($0.48 and $0.00 per share, respectively) (499,383) -- Class R ($0.43 and $0.00 per share, respectively) (882) -- Class Y ($0.68 and $0.65 per share, respectively) (18,374,823) (6,520,657) -------------------------------------------------------------------------------------------------- Total distributions to shareowners $ (47,507,877) $ (17,566,517) ================================================================================================== FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $ 619,264,135 $ 700,789,233 Reinvestment of distributions 46,599,296 17,101,658 Cost of shares repurchased (385,902,803) (102,074,592) -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from Fund share transactions $ 279,960,628 $ 615,816,299 -------------------------------------------------------------------------------------------------- Net increase in net assets $ 216,538,531 $ 633,146,408 NET ASSETS: Beginning of year $ 749,976,195 $ 116,829,787 -------------------------------------------------------------------------------------------------- End of year $ 966,514,726 $ 749,976,195 -------------------------------------------------------------------------------------------------- Undistributed net investment income $ 4,227,839 $ 5,044,300 ================================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 55 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------------ '15 Shares '15 Amount '14 Shares '14 Amount ------------------------------------------------------------------------------------------------ Class A Shares sold 15,185,837 $ 175,230,678 17,494,130 $ 205,342,178 Reinvestment of distributions 1,152,400 13,134,497 496,300 5,852,109 Less shares repurchased (10,534,463) (120,092,929) (4,311,532) (50,401,779) ------------------------------------------------------------------------------------------------ Net increase 5,803,774 $ 68,272,246 13,678,898 $ 160,792,508 ================================================================================================ Class C Shares sold 16,115,144 $ 185,166,940 18,657,545 $ 218,747,591 Reinvestment of distributions 1,291,986 14,666,404 407,291 4,804,556 Less shares repurchased (6,135,870) (69,536,580) (1,700,748) (19,586,446) ------------------------------------------------------------------------------------------------ Net increase 11,271,260 $ 130,296,764 17,364,088 $ 203,965,701 ================================================================================================ Class K* Shares sold 3,358,223 $ 38,969,021 -- $ -- Reinvestment of distributions 43,703 494,440 -- -- Less shares repurchased (870) (9,991) -- -- ------------------------------------------------------------------------------------------------ Net increase 3,401,056 $ 39,453,470 -- $ -- ================================================================================================ Class R* Shares sold 40,700 $ 455,831 -- $ -- Reinvestment of distributions 16 182 -- -- Less shares repurchased -- -- -- -- ------------------------------------------------------------------------------------------------ Net increase 40,716 $ 456,013 -- $ -- ================================================================================================ Class Y Shares sold 19,066,332 $ 219,441,665 23,500,058 $ 276,699,464 Reinvestment of distributions 1,607,246 18,303,773 544,431 6,444,993 Less shares repurchased (17,270,776) (196,263,303) (2,769,499) (32,086,367) ------------------------------------------------------------------------------------------------ Net increase 3,402,802 $ 41,482,135 21,274,990 $ 251,058,090 ================================================================================================ * Class K and Class R shares commenced operations on December 1, 2014. The accompanying notes are an integral part of these financial statements. 56 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Financial Highlights ------------------------------------------------------------------------------------------------------------------------------- Year Year Year Ended Ended Ended 12/22/11 7/31/15 7/31/14 7/31/13 to 7/31/12 ------------------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 11.94 $ 11.07 $ 10.61 $ 10.00 ------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.60 $ 0.69 $ 0.61 $ 0.36 Net realized and unrealized gain (loss) on investments (0.73) 0.80 0.78 0.53 ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.13) $ 1.49 $ 1.39 $ 0.89 ------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.66) $ (0.62) $ (0.73) $ (0.28) Net realized gain -- -- (0.20) -- ------------------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.66) $ (0.62) $ (0.93) $ (0.28) ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.79) $ 0.87 $ 0.46 $ 0.61 ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.15 $ 11.94 $ 11.07 $ 10.61 =============================================================================================================================== Total return* (1.10)% 13.77% 13.52% 8.91%*** Ratio of net expenses to average net assets 0.85% 0.85% 0.85% 0.85%** Ratio of net investment income (loss) to average net assets 5.38% 6.62% 6.19% 5.99%** Portfolio turnover rate 120% 99% 119% 42%*** Net assets, end of period (in thousands) $266,899 $216,565 $49,263 $ 6,545 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 0.95% 1.00% 1.37% 2.51%** Net investment income (loss) to average net assets 5.28% 6.47% 5.67% 4.33%** =============================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 57 Financial Highlights (continued) ------------------------------------------------------------------------------------------------------------------------------- Year Year Year Ended Ended Ended 12/22/11 7/31/15 7/31/14 7/31/13 to 7/31/12 ------------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 11.91 $ 11.04 $ 10.60 $ 10.00 ------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.51 $ 0.57 $ 0.52 $ 0.32 Net realized and unrealized gain (loss) on investments (0.74) 0.82 0.75 0.52 ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.23) $ 1.39 $ 1.27 $ 0.84 ------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.56) $ (0.52) $ (0.63) $ (0.24) Net realized gain -- -- (0.20) -- ------------------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.56) $ (0.52) $ (0.83) $ (0.24) ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.79) $ 0.87 $ 0.44 $ 0.60 ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.12 $ 11.91 $ 11.04 $ 10.60 =============================================================================================================================== Total return* (1.89)% 12.84% 12.39% 8.45%*** Ratio of net expenses to average net assets 1.69% 1.72% 1.71% 1.67%** Ratio of net investment income (loss) to average net assets 4.59% 5.73% 5.24% 5.17%** Portfolio turnover rate 120% 99% 119% 42%*** Net assets, end of period (in thousands) $353,686 $244,574 $35,074 $ 5,831 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.69% 1.72% 2.13% 3.26%** Net investment income (loss) to average net assets 4.59% 5.73% 4.81% 3.58%** =============================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. 58 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 -------------------------------------------------------------------------------- 12/1/14 to 7/31/15 -------------------------------------------------------------------------------- Class K Net asset value, beginning of period $ 11.50 -------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.50 Net realized and unrealized gain (loss) on investments (0.37) -------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.13 -------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.48) Net realized gain -- -------------------------------------------------------------------------------- Total distributions $ (0.48) -------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.35) -------------------------------------------------------------------------------- Net asset value, end of period $ 11.15 ================================================================================ Total return* 1.13%*** Ratio of net expenses to average net assets 0.63%** Ratio of net investment income (loss) to average net assets 5.63%** Portfolio turnover rate 120%** Net assets, end of period (in thousands) $37,935 ================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 59 Financial Highlights (continued) -------------------------------------------------------------------------------- 12/1/14 to 7/31/15 -------------------------------------------------------------------------------- Class R Net asset value, beginning of period $ 11.50 -------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.43 Net realized and unrealized gain (loss) on investments (0.30) -------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.13 -------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.43) Net realized gain -- -------------------------------------------------------------------------------- Total distributions $ (0.43) -------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.30) -------------------------------------------------------------------------------- Net asset value, end of period $ 11.20 ================================================================================ Total return* 1.16%*** Ratio of net expenses to average net assets 1.40%** Ratio of net investment income (loss) to average net assets 4.20%** Portfolio turnover rate 120%** Net assets, end of period (in thousands) $ 456 ================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. 60 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------------------------- Year Year Year Ended Ended Ended 12/22/11 7/31/15 7/31/14 7/31/13 to 7/31/12 ------------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 11.93 $ 11.06 $ 10.62 $ 10.00 ------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.63 $ 0.68 $ 0.63 $ 0.39 Net realized and unrealized gain (loss) on investments (0.74) 0.84 0.76 0.51 ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.11) $ 1.52 $ 1.39 $ 0.90 ------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.68) $ (0.65) $ (0.75) $ (0.28) Net realized gain -- -- (0.20) -- ------------------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.68) $ (0.65) $ (0.95) $ (0.28) ------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.79) $ 0.87 $ 0.44 $ 0.62 ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.14 $ 11.93 $ 11.06 $ 10.62 =============================================================================================================================== Total return* (0.89)% 14.01% 13.53% 9.10%*** Ratio of net expenses to average net assets 0.65% 0.65% 0.65% 0.65%** Ratio of net investment income (loss) to average net assets 5.58% 6.58% 6.23% 6.16%** Portfolio turnover rate 120% 99% 119% 42%*** Net assets, end of period (in thousands) $307,538 $288,838 $32,492 $ 5,418 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 0.71% 0.71% 1.10% 2.25%** Net investment income (loss) to average net assets 5.52% 6.52% 5.79% 4.56%** =============================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 61 Notes to Financial Statements | 7/31/15 1. Organization and Significant Accounting Policies Pioneer Multi-Asset Income Fund (the Fund) is one of three portfolios comprising Pioneer Series Trust IV, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The investment objective of the Fund is to seek a high level of current income to the extent consistent with a relatively high level of stability of principal. The Fund offers five classes of shares designated as Class A, Class C, Class K, Class R and Class Y shares. Class A, Class C and Class Y shares commenced operations on December 22, 2011. Class K and Class R shares commenced operations on December 1, 2014. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses, such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gains and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements. 62 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Senior floating rate loan interests (senior loans) are valued in accordance with guidelines established by the Board of Trustees at the mean between the last available bid and asked prices from one or more brokers or dealers as obtained from Loan Pricing Corporation, an independent pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Event-linked bonds are valued at the bid price obtained from an independent third party pricing service. Other insurance linked securities may be valued at the bid price obtained from an independent pricing service, or through a third party using a pricing matrix, insurance industry valuation models, or other fair value methods or techniques to provide an estimated value of the instrument. Credit default swaps are valued by an independent pricing service based upon valuation models incorporating default probabilities, estimated recovery rates, actual reported transactions, and other available market data. Equity securities that have traded on an exchange are valued at the last sale price on the principal exchange where they are traded. Equity securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. Securities for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 63 Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At July 31, 2015, three securities were valued using fair value methods (in addition to securities valued using prices supplied by independent pricing services or broker-dealers or using a third party insurance industry pricing model) representing less than 0.0% of net assets. B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Dividend income is recorded on the ex-dividend date except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income, including interest on income bearing cash accounts, is recorded on the accrual basis. Dividend and interest income are reported net of unrecoverable foreign taxes withheld at the applicable country rates. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference 64 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the statement of operations from the effects of changes in the market prices of those securities but are included with the net realized and unrealized gain or loss on investments. D. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 6). E. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of July 31, 2015, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. At July 31, 2015, the Fund reclassified $1,998,622 to increase undistributed net investment income and $1,998,622 to increase accumulated net realized loss on investments, foreign currency transactions, swap contracts and futures contracts to reflect permanent book/tax differences. These adjustments have no impact on the net assets or results of operations. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 65 At July 31, 2015, the Fund was permitted to carry forward indefinitely $23,820,576 of short-term losses under the Regulated Investment Company Modernization Act of 2010 without limitation. The tax character of distributions paid during the year ended July 31, 2015 and July 31, 2014 was as follows: --------------------------------------------------------------------------- 2015 2014 --------------------------------------------------------------------------- Distributions paid from: Ordinary income $47,507,877 $17,566,517 --------------------------------------------------------------------------- Total $47,507,877 $17,566,517 =========================================================================== The following shows the components of distributable earnings on a federal income tax basis at July 31, 2015: --------------------------------------------------------------------------- 2015 --------------------------------------------------------------------------- Distribution paid from: Undistributed ordinary income $ 5,314,120 Capital loss carryforward (23,820,576) Current year dividend payable (43,886) Unrealized depreciation (26,568,208) --------------------------------------------------------------------------- Total $(45,118,550) =========================================================================== The difference between book-basis and tax-basis net unrealized depreciation is attributable to the tax deferral of losses on wash sales, adjustments relating to catastrophe bonds, the tax treatment of premium and amortizing, the mark to market of forward and futures contracts, tax basis adjustments on Real Estate Investment Trust (REIT) holdings, interest accruals on preferred stock, partnerships and other holdings. F. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $282,446 in underwriting commissions on the sale of Class A shares during the year ended July 31, 2015. G. Class Allocations Income, common expenses, and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A, Class C and Class R shares of the Fund, respectively (see Note 4). Class K and Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management 66 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). The Fund declares as daily dividends substantially all of its net investment income. All dividends are paid on a monthly basis. Short-term capital gain distributions, if any, may be declared with the daily dividends. Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time except that net investment income dividends to Class A, Class C, Class K, Class R and Class Y shares can reflect different transfer agent and distribution expense rates. H. Risks When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of underlying issuers and their inability to meet their debt obligations. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. The Fund invests in event-linked bonds. Event-linked bonds are floating rate debt obligations for which the return of principal and the payment of interest are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The trigger event's magnitude may be based on losses to a company or industry, industry indexes or readings of scientific instruments, or may be based on specified actual losses. If a trigger event, as defined within the terms of an event-linked bond occurs, the Fund may lose a portion or all of its accrued interest and/or principal invested in such event-linked bond. The Fund is entitled to receive principal and interest payments so long as no trigger event occurs of the description and magnitude specified by the instrument. In addition to the specified trigger events, event-linked bonds may expose the Fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences. In addition to event-linked bonds, the Fund also may invest in other insurance-linked securities ("ILS"). The Fund's investments in ILS may include special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Structured reinsurance investments also may include industry Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 67 loss warranties ("ILWs"), are subject to the same risks as event-linked bonds. In addition, because quota share instruments represent an interest in a basket of underlying reinsurance contracts, the Fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk assessment and sound underwriting practices of the issuer. Accordingly, it may be more difficult for PIM to fully evaluate the underlying risk profile of the Fund's investment in quota share instruments and therefore place the Fund's assets at greater risk of loss than if PIM had more complete information. These securities may be difficult to purchase, sell or unwind and may be difficult to value. I. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at July 31, 2015 was $5,495,500. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation and depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract as well as any fluctuation in foreign currency exchange rates where applicable. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amounts recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. The average value of contracts open during the year ended July 31, 2015 was ($57,301,969). At July 31, 2015, open futures contracts were as follows: ---------------------------------------------------------------------------------------- Number of Unrealized Contracts Settlement Appreciation/ Type Long/(Short) Month/Year Value Depreciation ---------------------------------------------------------------------------------------- F/C JPN YEN 289 9/15 $ 29,143,844 $ (35,469) F/C EURO STOXX 50 (250) 9/15 (9,872,013) 8,231 F/C S&P500 EMINI (800) 9/15 (83,936,000) (249,637) F/C EURO FX (214) 9/15 (29,347,425) 295,850 ---------------------------------------------------------------------------------------- $(94,011,594) $ 18,975 ======================================================================================== 68 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 J. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. (PIM), is responsible for determining that the value of the collateral remains at least equal to the repurchase price. At July 31, 2015, the Fund had no outstanding repurchase agreements. K. Credit Default Swaps A credit default swap is a contract between a buyer of protection and a seller of protection against a pre-defined credit event. The Fund may sell or buy credit default swap contracts to seek to increase the Fund's income or to attempt to hedge the risk of default on portfolio securities. As a seller of protection, the Fund would be required to pay the notional (or other agreed upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract provided that no event of default occurred. The maximum exposure of loss to the Fund as seller of protection would be the notional value of the credit default swaps outstanding. If no default occurs, the Fund would keep the stream of payments and would have no payment obligation. The Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty described above. When the Fund enters into a credit default swap contract, either the buyer or seller of protection will make a rebalancing payment to the other party. The amount of the rebalancing payment is determined based on the value of the contract on the trade date. Periodic payments received or paid by the Fund are recorded as realized gains or losses. The credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 69 buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. In addition, obligations under sell protection credit default swaps may be partially offset by net amounts received from settlement of buy protection credit default swaps entered into by the Fund for the same reference obligation with the same counterparty. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared contracts is recorded as variation margin on centrally cleared swaps on the Statement of Assets and Liabilities. Open credit default swap contracts at July 31, 2015 are listed in the Schedule of Investments. The average value of credit default swap contracts open during the year ended July 31, 2015 was ($43,142). L. Total Return Swap Agreements The Fund may enter into a total return swap to attempt to manage and/or gain exposure to a security or market. Pursuant to a total return swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments. One party makes payments based on the total return of a reference asset (such as a security or a basket of securities or securities index), and in return receives fixed or floating rate interest payments. The total return of the reference asset typically includes appreciation or depreciation on the reference asset, plus any interest or dividend payments. To the extent that the total return of the reference asset exceeds or falls short of the offsetting interest rate obligation, the Fund will receive a payment from or make a payment to the counterparty. Total return swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made are recorded as realized gains or losses in the Statement of Operations. Total return swap contracts are subject to counterparty risk and unanticipated movements in value of exchange rates, interest rates, securities or the index. The average value of total return swap contracts open during the year ended July 31, 2015 was $411,782. At July 31, 2015, the Fund had no open total return swap contracts. 70 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 M. Option Writing The Fund may write put and covered call options to seek to increase total return. When an option is written, the Fund receives a premium and becomes obligated to purchase or sell the underlying security at a fixed price, upon the exercise of the option. When the Fund writes an option, an amount equal to the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the option written. Premiums received from writing options that expire unexercised are treated by the Fund on the expiration date as realized gains from investments. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain, or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call option is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether the Fund has realized a gain or loss. The Fund as writer of an option bears the market risk of an unfavorable change in the price of the security underlying the written option. The average value of written options contracts open during the year ended July 31, 2015 was ($117,534). Written call and put option contracts outstanding at period end are listed at the end of the Fund's schedule of investments. The Fund held two written put option contracts that were open at July 31, 2015. If the put options were exercised at July 31, 2015, the maximum amount the Fund would have been required to pay was $665,695. The Fund held two written call option contracts that were open at July 31, 2015. If the put options were exercised at July 31, 2015, the maximum amount the Fund would have been required to pay was $317,640. --------------------------------------------------------------------------- Number of Contracts Premium Paid --------------------------------------------------------------------------- Options open at beginning of period -- $ -- Options opened (46,139) (983,335) Options exercised -- -- Options closed -- -- Options expired -- -- --------------------------------------------------------------------------- Options open at end of period (46,139) $ (983,335) =========================================================================== N. Purchased Options The Fund may purchase put and call options in order to seek to increase total return. Purchased call and put options entitle the Fund to buy and sell a specified number of shares or units of a particular security, currency or index at a specified price at a specific date or within a specific period of time. Upon the purchase of a call or put option, the premium paid by the Fund is included in the Statement of Assets and Liabilities as an investment. All premiums are marked-to-market daily, and any unrealized appreciation or Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 71 depreciation are recorded in the Fund's financial statements. As the purchaser of an index option, the Fund has the right to receive a cash payment equal to any depreciation in the value of the index below the strike price of the option (in the case of a put) or equal to any appreciation in the value of the index over the strike price of the option (in the case of a call) as of the valuation date of the option. Premiums paid for purchased calls and put options which have expired are treated as realized losses on investments in the Statement of Operations. Upon the exercise or closing of a purchased put option, the premium is offset against the proceeds on the sale of the underlying security or financial instrument in order to determine the realized gain or loss on investments. Upon the exercise or closing of a purchased call option, the premium is added to the cost of the security or financial instrument. The risk associated with purchasing options is limited to the premium originally paid. The average value of purchased options contracts open during the year ended July 31, 2015 was $262,876. Purchased option contracts outstanding at period end are listed within the Fund's schedule of investments. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate of 0.50% of the Fund's average daily net assets up to $1 billion and 0.45% on assets over $1 billion. For the year ended July 31, 2015, the effective management fee (excluding waivers and/or assumption of expenses) was equal to 0.50% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 0.85%, 1.75%, and 0.65% of the average daily net assets attributable to Class A, Class C and Class Y shares, respectively. Fees waived and expenses reimbursed during the year ended July 31, 2015 are reflected on the Statement of Operations. These expense limitations are in effect through December 1, 2016. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting, and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $27,541 in management fees, administrative costs and certain other reimbursements payable from PIM at July 31, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. 72 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the year ended July 31, 2015, such out-of-pocket expenses by class of shares were as follows: --------------------------------------------------------------------------------- Shareholder Communications: --------------------------------------------------------------------------------- Class A $187,036 Class C 231,001 Class R 55 Class Y 327,861 --------------------------------------------------------------------------------- Total $745,953 ================================================================================= Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $104,697 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at July 31, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A, Class C and Class R shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Pursuant to the Plan, the Fund also pays PFD 0.50% of the average daily net assets attributable to Class R shares. Separate service plan provides for payment to financial intermediaries of up to 0.25% of average daily net assets attributable to Class R shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $22,986 in distribution fees payable to PFD at July 31, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to PFD. For the year ended July 31, 2015, CDSC's in the amount of $75,541 were paid to PFD. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 73 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS, which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the year ended July 31, 2015, the Fund's expenses were not reduced under such arrangements. 6. Forward Foreign Currency Contracts At July 31, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the year ended July 31, 2015 was ($1,517,280). As of July 31, 2015, open forward foreign currency contracts were as follows: ---------------------------------------------------------------------------------------------- Quantity/ Shares Purchased/ Currency (Sold) Settlement US $ Value Unrealized Description Counterparty to Deliver Book Value Date at 7/31/15 Depreciation ---------------------------------------------------------------------------------------------- AUD (Australian Bank of Dollar) New York (118,035) $(86,060) 8/4/15 $(86,206) $(146) 7. Line of Credit Facility The Fund, along with certain other funds in the Pioneer Family of Funds (the Funds), participates in a committed, unsecured revolving line of credit facility. Borrowings are used solely for temporary or emergency purposes. The Fund may borrow up to the lesser of the amount available under the facility or the limits set for borrowing by the Fund's prospectus and the 1940 Act. The credit facility in effect until June 9, 2015, was in the amount of $215 million. As of June 9, 2015, the facility is in the amount of $240 million. Under such facility, depending on the type of loan, interest on borrowings is payable at the London Interbank Offered Rate (LIBOR) plus 0.90% (0.85% as of February 12, 2014) on an annualized basis, or the Alternate Base Rate, which is the greater of (a) the facility's administrative agent's daily announced prime rate on the borrowing date, (b) 2% plus the Federal Funds Rate on the borrowing date and (c) 2% plus the overnight Eurodollar rate on the borrowing date. The Funds pay an annual commitment fee to participate in a credit facility. The commitment fee is allocated among participating Funds based on an allocation schedule set forth in the credit agreement. For the year ended July 31, 2015, the average daily amount of borrowings outstanding during the period was $206,575. The related weighted average annualized interest rate for the period was 0.97% and the total interest expense on such borrowings was $3,301, which is included in miscellaneous expense, located on the Statement of Operations. As of July 31, 2015, there were no borrowings outstanding. 74 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 8. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of July 31, 2015 were as follows: ------------------------------------------------------------------------------------------------ Derivatives Not Asset Derivatives Liabilities Derivatives Accounted for as ------------------------------------------------------------------- Hedging Instruments Statement of Statement of Under Accounting Assets and Assets and Standards Codification Liabilities Liabilities (ASC) 815 Location Value Location Value ------------------------------------------------------------------------------------------------ Forward Foreign Net unrealized Net unrealized currency contracts appreciation on depreciation on forward foreign forward foreign currency contracts $ -- currency contracts $ (146) Swap contracts Net unrealized Net unrealized appreciation on depreciation on swap contracts $61,113 swap contracts $ -- Futures contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts $18,975 futures contracts $ -- Written options Written options $ -- Written options $ 744,975 ------------------------------------------------------------------------------------------------ Total $80,088 $ 745,121 ================================================================================================ The effect of derivative instruments on the Statement of Operations for the year ended July 31, 2015 was as follows: ------------------------------------------------------------------------------------------------- Change in Derivatives Not Unrealized Accounted for as Realized Appreciation or Hedging Instruments Gain or (Loss) (Depreciation) Under Accounting Location of Gain or (Loss) on Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ------------------------------------------------------------------------------------------------- Forward foreign Net realized gain (loss) on forward currency contracts foreign currency contracts $ 546,346 Forward foreign Change in unrealized appreciation currency contracts (depreciation) on forward foreign currency contracts $(323,145) Futures contracts Net realized gain (loss) on futures contracts $(8,018,520) Futures contracts Change in net unrealized appreciation (depreciation) on futures contracts $(304,384) Swap contracts Net realized gain (loss) on swap contracts $ 4,846,097 Swap contracts Change in net unrealized appreciation (depreciation) on swap contracts $(120,268) Written options Net realized gain (loss) on written options $ -- Written options Change in net unrealized appreciation (depreciation) on written options $ 238,360 ================================================================================================ Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 75 9. Bridge Loan Commitments As of July 31, 2015, the Portfolio had five bridge loan commitments of $17,959,348, which could be extended at the option of the borrower, pursuant to the following loan agreements: ----------------------------------------------------------------------------------- Unrealized Loan Principal Cost Value Appreciation ----------------------------------------------------------------------------------- Charter Communications Operating Co. 2,724,348 $ 2,724,348 $ 2,724,348 $ -- Builders FirstSource, Inc. 4,485,000 4,485,000 4,485,000 -- Alliant Holdings I, L.P. 3,610,000 3,610,000 3,610,000 -- Rite Aid Corporation 4,185,000 4,185,000 4,185,000 -- Templar Energy LLC 2,955,000 2,955,000 2,955,000 -- ----------------------------------------------------------------------------------- Total $17,959,348 $17,959,348 $ -- ----------------------------------------------------------------------------------- 10. Assets and Liabilities Offsetting Financial instruments subject to an enforceable master netting agreement have been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of July 31, 2015. -------------------------------------------------------------------------------------------------- Assets: Gross Amounts Net Gross Amounts Not Offset Offset Amounts of in the Statement of in the Assets Assets and Liabilities Gross Statement Presented in ------------------------------ Amounts of of Assets the Statement Cash Recognized and of Assets and Financial Collateral Net Description Assets Liabilities Liabilities Instruments Received* Amount -------------------------------------------------------------------------------------------------- Forward foreign currency contracts $ -- $ -- $ -- $ -- $ -- $ -- Swap contracts 61,113 -- 61,113 -- -- 61,113 Written options -- -- -- -- -- -- -------------------------------------------------------------------------------------------------- $61,113 $ -- $61,113 $ -- $ -- $61,113 ================================================================================================== 76 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ---------------------------------------------------------------------------------------------------- Liabilities: Gross Amounts Net Gross Amounts Not Offset Offset Amounts of in the Statement of in the Liabilities Assets and Liabilities Gross Statement Presented in ------------------------------ Amounts of of Assets the Statement Cash Recognized and of Assets and Financial Collateral Net Description Liabilities Liabilities Liabilities Instruments Pledged* Amount ---------------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 146 $ -- $ 146 $ -- $ -- $ 146 Swap contracts -- -- -- -- -- -- Written options 744,975 -- 744,975 -- 744,975 -- ---------------------------------------------------------------------------------------------------- $745,121 $ -- $745,121 $ -- $744,975 $ 146 ==================================================================================================== * The amount presented here may be less than the total amount of collateral received/pledged as the net amount of derivative assets and liabilities cannot be less than $0. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 77 Report of Independent Registered Public Accounting Firm To the Board of Trustees of Pioneer Series Trust IV and the Shareowners of Pioneer Multi-Asset Income Fund: -------------------------------------------------------------------------------- We have audited the accompanying statement of assets and liabilities of Pioneer Multi-Asset Income Fund (the "Fund"), one of the portfolios constituting Pioneer Series Trust IV (the "Trust"), including the schedule of investments, as of July 31, 2015, and the related statement of operations for the year then ended and the statements of changes in net assets and the financial highlights each of the two years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The financial highlights for the years ended July 31, 2013, 2012, and 2011 were audited by other auditors. Those auditors expressed an unqualified opinion on those financial statements and financial highlights in their report dated September 24, 2013. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Fund is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2015, by correspondence with the custodian, brokers and agent banks; where replies were not received from brokers and agent banks, we performed other auditing procedures. We believe that our audits provides a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Pioneer Multi-Asset Income Fund as of July 31, 2015, the results of its operations for the year then ended, and the changes in its net assets and the financial highlights for each of the two years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. /s/ Deloitte & Touche LLP Boston, Massachusetts September 24, 2015 78 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ADDITIONAL INFORMATION (unaudited) For the year ended July 31, 2015, certain dividends paid by the Fund may be subject to a maximum tax rate of 15%, as provided for by the Jobs and Growth Tax Relief Reconciliation Act (the Act) of 2003. The Fund intends to designate up to the maximum amount of such dividends allowable under the Act, as taxed at a maximum rate of 15%. Complete information will be computed and reported in conjunction with your 2015 form 1099-DIV. The qualifying percentage of the Fund's ordinary income dividends for the purpose of the corporate dividends received deduction was 20.94%. The percentages of the Fund's ordinary income distributions that are exempt from nonresident alien (NRA) tax withholding resulting from qualified interest income was 39.41%. PIM, the Fund's investment adviser, is currently an indirect, wholly-owned subsidiary of UniCredit. On April 23, 2015, UniCredit announced that it signed a preliminary and exclusive agreement with Banco Santander and affiliates of Warburg Pincus and General Atlantic (the "Private Equity Firms") with respect to Pioneer Investments ("Pioneer") and Santander Asset Management ("SAM") (the "Transaction"). The Transaction, as described in the UniCredit announcement, will entail the establishment of a holding company, with the name Pioneer Investments, to be owned by UniCredit (50%) and the Private Equity Firms (50% between them). The holding company will control Pioneer's U.S. operations, including the Adviser. The holding company also will own 66.7% of Pioneer's and SAM's combined operations outside the U.S., while Banco Santander will own directly the remaining 33.3% stake. The completion of the Transaction is subject to the signing of a definitive agreement, as well as certain regulatory and corporate approvals, and other conditions. Under the Investment Company Act of 1940, completion of the Transaction will cause the Fund's investment advisory agreement with the Adviser to terminate. In connection with the Transaction, the Fund's Board of Trustees will be asked to approve a new investment advisory agreement for the Fund. If approved by the Board, the Fund's new investment advisory agreement will be submitted to the shareholders of the Fund for their approval. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 79 Trustees, Officers and Service Providers Investment Adviser Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Independent Registered Public Accounting Firm Deloitte & Touche LLP Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. Trustees and Officers The Fund's Trustees and officers are listed below, together with their principal occupations during at least the past five years. Trustees who are interested persons of the Fund within the meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are not interested persons of the Fund are referred to as Independent Trustees. Each of the Trustees serves as a Trustee of each of the 51 U.S. registered investment portfolios for which Pioneer serves as investment adviser (the "Pioneer Funds"). The address for all Trustees and all officers of the Fund is 60 State Street, Boston, Massachusetts 02109. The Statement of Additional Information of the Fund includes additional information about the Trustees and is available, without charge, upon request, by calling 1-800-225-6292. 80 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Independent Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Position Term of Office and Other Directorships Held with the Trust Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Thomas J. Perna (64) Trustee since 2011. Private investor (2004-2008 and 2013-present); Director, Broadridge Financial Chairman of the Board Serves until a Chairman (2008 - 2013) and Chief Executive Officer Solutions Inc. (investor and Trustee successor trustee (2008 - 2012), Quadriserv, Inc. (technology communications and, securities is elected or products for securities lending industry); and processing provider for earlier retirement Senior Executive Vice President, The Bank of New financial services industry) or removal. York (financial and securities services) (1986 - (2009 - present); Director, 2004) Quadriserv, Inc. (2005 - 2013); and Commissioner, New Jersey State Civil Service Commission (2011 - present) ------------------------------------------------------------------------------------------------------------------------------------ David R. Bock (71) Trustee since 2011. Managing Partner, Federal City Capital Advisors Director of New York Mortgage Trustee Serves until a (corporate advisory services company) (1997 - 2004 Trust (publicly traded mortgage successor trustee and 2008 - present); Interim Chief Executive REIT) (2004 - 2009, 2012 - is elected or Officer, Oxford Analytica, Inc. (privately-held present); Director of The earlier retirement research and consulting company) (2010); Executive Swiss Helvetia Fund, Inc. or removal. Vice President and Chief Financial Officer, I-trax, (closed-end fund) (2010 - Inc. (publicly traded health care services present); Director of Oxford company) (2004 - 2007); Executive Vice President Analytica, Inc. (2008 - and Chief Financial Officer, Pedestal Inc. present); and Director of (internet-based mortgage trading company) (2000 - Enterprise Community 2002); Private Consultant (1995 - 1997); Managing Investment, Inc. Director, Lehman Brothers (1992 -1995); and (privately-held affordable Executive, The World Bank (1979 - 1992) housing finance company) (1985 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Benjamin M. Friedman Trustee since 2011. William Joseph Maier Professor of Political Trustee, Mellon Institutional (70) Trustee Serves until a Economy, Harvard University (1972 - present) Funds Investment Trust and successor trustee Mellon Institutional Funds is elected or Master Portfolio (over saw 17 earlier retirement portfolios in fund complex) or removal. (1989-2008) ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 81 Independent Trustees (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Position Term of Office and Other Directorships Held with the Trust Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Margaret B.W. Graham Trustee since 2011. Founding Director, Vice President and Corporate None (68) Trustee Serves until a Secretary, The Winthrop Group, Inc. (consulting firm) successor trustee (1982 - present); Desautels Faculty of Management, is elected or McGill University (1999 - present); and Manager of earlier retirement Research Operations and Organizational Learning, or removal. Xerox PARC, Xerox's advance research center (1990 - 1994) ------------------------------------------------------------------------------------------------------------------------------------ Marguerite A. Piret (67) Trustee since 2011. President and Chief Executive Officer, Newbury, Piret Director of New America Trustee Serves until a & Company, Inc. (investment banking firm) (1981 - High Income Fund, Inc. successor trustee present) (closed-end investment is elected or company) (2004 - present); earlier retirement and member, Board of or removal. Governors, Investment Company Institute (2000 - 2006) ------------------------------------------------------------------------------------------------------------------------------------ Fred J. Ricciardi (68) Trustee since 2014. Consultant (investment company services) (2012 - None Trustee Serves until a present); Executive Vice President, BNY Mellon successor trustee (financial and investment company services) (1969 is elected or - 2012); Director, BNY International Financing Corp. earlier retirement (financial services) (2002 - 2012); and Director, or removal. Mellon Overseas Investment Corp. (financial services) (2009 - 2012) ------------------------------------------------------------------------------------------------------------------------------------ 82 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Kenneth J. Taubes (57)* Trustee since 2014. Director and Executive Vice President (since 2008) None Trustee Serves until a and Chief Investment Officer, U.S. (since 2010), of successor trustee is PIM-USA; Executive Vice President of Pioneer (since elected or earlier 2008); Executive Vice President of Pioneer retirement or Institutional Asset Management, Inc. (since 2009); removal. Portfolio Manager of Pioneer (since 1999) ------------------------------------------------------------------------------------------------------------------------------------ * Mr. Taubes is an Interested Trustee because he is an officer or director of the Fund's investment adviser and certain of its affiliates. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 83 Advisory Trustee ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Trust Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Lorraine H. Monchak (59)** Advisory Trustee Chief Investment Officer, 1199 SEIU Funds (health care None since 2014. workers union pension Funds) (2001 - present); Vice President - International Investments Group, American International Group, Inc. (insurance company) (1993 - 2001); Vice President, Corporate Finance and Treasury Group, Citibank, N.A. (1980 - 1986 and 1990 - 1993); Vice President - Asset/Liability Management Group, Federal Farm Funding Corp. (government-sponsored Issuer of debt securities) (1988 - 1990); Mortgage Strategies Group, Shearson Lehman Hutton, Inc. (investment bank) (1987 - 1988); and Mortgage Securities Group, Drexel Burnham Lambert, Ltd. (investment bank) (1986 - 1987) ------------------------------------------------------------------------------------------------------------------------------------ ** Ms. Monchak in a non-voting Advisory Trustee. 84 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 Fund Officers ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Lisa M. Jones (53) Since 2014. Serves at Chair, Director, CEO and President of Pioneer None President and Chief the discretion of the Investment Management-USA (since September 2014); Chair, Executive Officer Board. Director, CEO and President of Pioneer Investment Management, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Funds Distributor, Inc. (since September 2014); Chair, Director, CEO and President of Pioneer Institutional Asset Management, Inc. (since September 2014); and Chair, Director, and CEO of Pioneer Investment Management Shareholder Services, Inc. (since September 2014); Managing Director, Morgan Stanley Investment Management (2010 - 2013); and Director of Institutional Business, CEO of International, Eaton Vance Management (2005 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Christopher J. Kelley (50) Since 2011. Serves at Vice President and Associate General Counsel of Pioneer None Secretary and Chief Legal the discretion of the since January 2008; Secretary and Chief Legal Officer of Officer Board. all of the Pioneer Funds since June 2010; Assistant Secretary of all of the Pioneer Funds from September 2003 to May 2010; and Vice President and Senior Counsel of Pioneer from July 2002 to December 2007 ------------------------------------------------------------------------------------------------------------------------------------ Carol B. Hannigan (54) Since 2011. Serves at Fund Governance Director of Pioneer since December 2006 None Assistant Secretary the discretion of the and Assistant Secretary of all the Pioneer Funds since Board. June 2010; Manager - Fund Governance of Pioneer from December 2003 to November 2006; and Senior Paralegal of Pioneer from January 2000 to November 2003 ------------------------------------------------------------------------------------------------------------------------------------ Thomas Reyes (52) Assistant Since 2011. Serves at Senior Counsel of Pioneer since May 2013 and Assistant None Secretary the discretion of the Secretary of all the Pioneer Funds since June 2010; and Board. Counsel of Pioneer from June 2007 to May 2013 ------------------------------------------------------------------------------------------------------------------------------------ Mark E. Bradley (55) Since 2011. Serves at Vice President - Fund Treasury of Pioneer; Treasurer of None Treasurer and Chief the discretion of the all of the Pioneer Funds since March 2008; Deputy Financial and Accounting Board. Treasurer of Pioneer from March 2004 to February 2008; Officer and Assistant Treasurer of all of the Pioneer Funds from March 2004 to February 2008 ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 85 Fund Officers (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Position Held Term of Office and Other Directorships with the Fund Length of Service Principal Occupation Held by Officer ------------------------------------------------------------------------------------------------------------------------------------ Luis I. Presutti (49) Since 2011. Serves at Director - Fund Treasury of Pioneer; and Assistant None Assistant Treasurer the discretion of the Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ Gary Sullivan (56) Since 2011. Serves at Fund Accounting Manager - Fund Treasury of Pioneer; None Assistant Treasurer the discretion of the and Assistant Treasurer of all of the Pioneer Funds Board. ------------------------------------------------------------------------------------------------------------------------------------ David F. Johnson (35) Since 2011. Serves at Fund Administration Manager - Fund Treasury of Pioneer None Assistant Treasurer the discretion of the since November 2008; Assistant Treasurer of all of the Board. Pioneer Funds since January 2009; and Client Service Manager - Institutional Investor Services at State Street Bank from March 2003 to March 2007 ------------------------------------------------------------------------------------------------------------------------------------ Jean M. Bradley (62) Chief Since 2011. Serves at Chief Compliance Officer of Pioneer and of all the None Compliance Officer the discretion of the Pioneer Funds since March 2010; Chief Compliance Board. Officer of Pioneer Institutional Asset Management, Inc. since January 2012; Chief Compliance Officer of Vanderbilt Capital Advisors, LLC since July 2012: Director of Adviser and Portfolio Compliance at Pioneer since October 2005; and Senior Compliance Officer for Columbia Management Advisers, Inc. from October 2003 to October 2005 ------------------------------------------------------------------------------------------------------------------------------------ Kelly O'Donnell (44) Since 2011. Serves at Director - Transfer Agency Compliance of Pioneer and None Anti-Money Laundering the discretion of the Anti-Money Laundering Officer of all the Pioneer Funds Officer Board. since 2006 ------------------------------------------------------------------------------------------------------------------------------------ 86 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 87 This page for your notes. 88 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 89 This page for your notes. 90 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 This page for your notes. Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 91 This page for your notes. 92 Pioneer Multi-Asset Income Fund | Annual Report | 7/31/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 25962-03-0915 ITEM 2. CODE OF ETHICS. (a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so. The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer and controller. (b) For purposes of this Item, the term "code of ethics" means written standards that are reasonably designed to deter wrongdoing and to promote: (1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant; (3) Compliance with applicable governmental laws, rules, and regulations; (4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and (5) Accountability for adherence to the code. (c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item. The registrant has made no amendments to the code of ethics during the period covered by this report. (d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver. Not applicable. (e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant's Internet address and such intention. Not applicable. (f) The registrant must: (1) File with the Commission, pursuant to Item 12(a)(1), a copy of its code of ethics that applies to the registrant's principal executive officer,principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment); (2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or (3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. 	See Item 10(2) ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. (a) (1) Disclose that the registrant's board of trustees has determined that the registrant either: (i) Has at least one audit committee financial expert serving on its audit committee; or (ii) Does not have an audit committee financial expert serving on its audit committee. The registrant's Board of Trustees has determined that the registrant has at least one audit committee financial expert. (2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is "independent." In order to be considered "independent" for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the board of trustees, or any other board committee: (i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or (ii) Be an "interested person" of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)). Ms. Marguerite A. Piret, an independent trustee, is such an audit committee financial expert. (3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert. Not applicable. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. The audit fees for the Trust were $130,877 payable to Deloitte & Touche LLP for the year ended July 31, 2015 and $118,330 for the year ended July 31, 2014. (b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant's financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. There were no fees for audit-related or other services provided to the Trust during the fiscal years ended July 31, 2015 and 2014. (c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category. The tax fees for the Trust were $24,600 payable to Deloitte & Touche LLP for the year ended July 31, 2015 and $21,300 for the year ended July 31, 2014. (d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. There were no fees for audit-related or other services provided to the Trust during the fiscal years ended July 31, 2015 and 2014. (e) (1) Disclose the audit committee's pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X. PIONEER FUNDS APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES PROVIDED BY THE INDEPENDENT AUDITOR SECTION I - POLICY PURPOSE AND APPLICABILITY The Pioneer Funds recognize the importance of maintaining the independence of their outside auditors. Maintaining independence is a shared responsibility involving Pioneer Investment Management, Inc ("PIM"), the audit committee and the independent auditors. The Funds recognize that a Fund's independent auditors: 1) possess knowledge of the Funds, 2) are able to incorporate certain services into the scope of the audit, thereby avoiding redundant work, cost and disruption of Fund personnel and processes, and 3) have expertise that has value to the Funds. As a result, there are situations where it is desirable to use the Fund's independent auditors for services in addition to the annual audit and where the potential for conflicts of interests are minimal. Consequently, this policy, which is intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and procedures to be followed by the Funds when retaining the independent audit firm to perform audit, audit-related tax and other services under those circumstances, while also maintaining independence. Approval of a service in accordance with this policy for a Fund shall also constitute approval for any other Fund whose pre-approval is required pursuant to Rule 210.2-01(c)(7)(ii). In addition to the procedures set forth in this policy, any non-audit services that may be provided consistently with Rule 210.2-01 may be approved by the Audit Committee itself and any pre-approval that may be waived in accordance with Rule 210.2-01(c)(7)(i)(C) is hereby waived. Selection of a Fund's independent auditors and their compensation shall be determined by the Audit Committee and shall not be subject to this policy. SECTION II - POLICY ---------------- -------------------------------- ------------------------------------------------- SERVICE SERVICE CATEGORY DESCRIPTION SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES CATEGORY ---------------- -------------------------------- ------------------------------------------------- I. AUDIT Services that are directly o Accounting research assistance SERVICES related to performing the o SEC consultation, registration independent audit of the Funds statements, and reporting o Tax accrual related matters o Implementation of new accounting standards o Compliance letters (e.g. rating agency letters) o Regulatory reviews and assistance regarding financial matters o Semi-annual reviews (if requested) o Comfort letters for closed end offerings ---------------- -------------------------------- ------------------------------------------------- II. Services which are not o AICPA attest and agreed-upon procedures AUDIT-RELATED prohibited under Rule o Technology control assessments SERVICES 210.2-01(C)(4) (the "Rule") o Financial reporting control assessments and are related extensions of o Enterprise security architecture the audit services support the assessment audit, or use the knowledge/expertise gained from the audit procedures as a foundation to complete the project. In most cases, if the Audit-Related Services are not performed by the Audit firm, the scope of the Audit Services would likely increase. The Services are typically well-defined and governed by accounting professional standards (AICPA, SEC, etc.) ---------------- -------------------------------- ------------------------------------------------- ------------------------------------- ------------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the audit period for all services and related fees pre-approved specific service reported at each regularly subcategories. Approval of the scheduled Audit Committee independent auditors as meeting. auditors for a Fund shall constitute pre approval for these services. ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the fund fiscal year within services and related fees a specified dollar limit (including comparison to for all pre-approved specified dollar limits) specific service subcategories reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limit for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for Audit-Related Services not denoted as "pre-approved", or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------------------ SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- III. TAX SERVICES Services which are not o Tax planning and support prohibited by the Rule, o Tax controversy assistance if an officer of the Fund o Tax compliance, tax returns, excise determines that using the tax returns and support Fund's auditor to provide o Tax opinions these services creates significant synergy in the form of efficiency, minimized disruption, or the ability to maintain a desired level of confidentiality. ----------------------- --------------------------- ----------------------------------------------- ------------------------------------- ------------------------- AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------- ------------------------------------- ------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year all such services and within a specified dollar limit related fees 				 (including comparison 			 to specified dollar 			 limits) reported 			 quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for tax services not denoted as pre-approved, or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- IV. OTHER SERVICES Services which are not o Business Risk Management support prohibited by the Rule, o Other control and regulatory A. SYNERGISTIC, if an officer of the Fund compliance projects UNIQUE QUALIFICATIONS determines that using the Fund's auditor to provide these services creates significant synergy in the form of efficiency, minimized disruption, the ability to maintain a desired level of confidentiality, or where the Fund's auditors posses unique or superior qualifications to provide these services, resulting in superior value and results for the Fund. ----------------------- --------------------------- ----------------------------------------------- --------------------------------------- ------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- -------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year within all such services and a specified dollar limit related fees 			 (including comparison 			 to specified dollar 				 limits) reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for "Synergistic" or "Unique Qualifications" Other Services not denoted as pre-approved to the left, or to add a specific service subcategory as "pre-approved" ------------------------------------- -------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- ------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PROHIBITED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- ------------------------- ----------------------------------------------- PROHIBITED SERVICES Services which result 1. Bookkeeping or other services in the auditors losing related to the accounting records or independence status financial statements of the audit under the Rule. client* 2. Financial information systems design and implementation* 3. Appraisal or valuation services, fairness* opinions, or contribution-in-kind reports 4. Actuarial services (i.e., setting actuarial reserves versus actuarial audit work)* 5. Internal audit outsourcing services* 6. Management functions or human resources 7. Broker or dealer, investment advisor, or investment banking services 8. Legal services and expert services unrelated to the audit 9. Any other service that the Public Company Accounting Oversight Board determines, by regulation, is impermissible ----------------------- ------------------------- ----------------------------------------------- ------------------------------------------- ------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------------- ------------------------------ o These services are not to be o A summary of all performed with the exception of the(*) services and related services that may be permitted fees reported at each if they would not be subject to audit regularly scheduled procedures at the audit client (as Audit Committee meeting defined in rule 2-01(f)(4)) level will serve as continual the firm providing the service. confirmation that has 				 not provided any restricted services. ------------------------------------------- ------------------------------ -------------------------------------------------------------------------------- GENERAL AUDIT COMMITTEE APPROVAL POLICY: o For all projects, the officers of the Funds and the Fund's auditors will each make an assessment to determine that any proposed projects will not impair independence. o Potential services will be classified into the four non-restricted service categories and the "Approval of Audit, Audit-Related, Tax and Other Services" Policy above will be applied. Any services outside the specific pre-approved service subcategories set forth above must be specifically approved by the Audit Committee. o At least quarterly, the Audit Committee shall review a report summarizing the services by service category, including fees, provided by the Audit firm as set forth in the above policy. -------------------------------------------------------------------------------- (2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. Non-Audit Services Beginning with non-audit service contracts entered into on or after May 6, 2003, the effective date of the new SEC pre-approval rules, the Trust's audit committee is required to pre-approve services to affiliates defined by SEC rules to the extent that the services are determined to have a direct impact on the operations or financial reporting of the Trust. For the years ended July 31 2015 and 2014, there were no services provided to an affiliate that required the Trust's audit committee pre-approval. (f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountants engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A (g) Disclose the aggregate non-audit fees billed by the registrants accountant for services rendered to the registrant, and rendered to the registrants investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. The aggregate non-audit fees for the Trust were $24,600 payable to Deloitte & Touche LLP for the year ended July 31, 2015 and $21,300 for the year ended July 31, 2014. (h) Disclose whether the registrants audit committee of the board of trustees has considered whether the provision of non-audit services that were rendered to the registrants investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. The Trust's audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS (a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant's audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state. N/A (b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees. N/A ITEM 6. SCHEDULE OF INVESTMENTS. File Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.1212 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form. Included in Item 1 ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company's investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company's investment adviser, or any other third party, that the company uses, or that are used on the company's behalf, to determine how to vote proxies relating to portfolio securities. Not applicable to open-end management investment companies. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR,provide the following information: (1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrant's portfolio ("Portfolio Manager"). Also state each Portfolio Manager's business experience during the past 5 years. Not applicable to open-end management investment companies. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. (a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrant's equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781). Not applicable to open-end management investment companies. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. Describe any material changes to the procedures by which shareholders may recommend nominees to the registrant's board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R(17 CFR 229.407)(as required by Item 22(b)(15)) of Schedule 14A (17 CFR 240.14a-101), or this Item. There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant's board of directors since the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R of Schedule 14(A) in its definitive proxy statement, or this item. ITEM 11. CONTROLS AND PROCEDURES. (a) Disclose the conclusions of the registrant's principal executive and principal financials officers, or persons performing similar functions, regarding the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30(a)-3(b) and Rules 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)). The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on the evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose any change in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17CFR 270.30a-3(d)) that occured during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. There were no significant changes in the registrant's internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. The registrant's principal executive officer and principal financial officer, however, voluntarily are reporting the following information: In August of 2006 the registrant's investment adviser enhanced its internal procedures for reporting performance information required to be included in prospectuses. Those enhancements involved additional internal controls over the appropriateness of performance data generated for this purpose. Such enhancements were made following an internal review which identified prospectuses relating to certain classes of shares of a limited number of registrants where, inadvertently, performance information not reflecting the deduction of applicable sales charges was included. Those prospectuses were revised, and the revised prospectuses were distributed to shareholders. ITEM 12. EXHIBITS. (a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit. (2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)) , exactly as set forth below: Filed herewith. SIGNATURES [See General Instruction F] Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer Series Trust IV By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date September 29, 2015 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date September 29, 2015 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer & Chief Accounting & Financial Officer Date September 29, 2015 * Print the name and title of each signing officer under his or her signature.