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 811-8707 Name of Fund: MuniHoldings Insured Fund, Inc. Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Terry K. Glenn, President, MuniHoldings Insured Fund, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543- 9011 Registrant's telephone number, including area code: (609) 282-2800 Date of fiscal year end: 04/30/04 Date of reporting period: 05/01/03 - 04/30/04 Item 1 - Report to Stockholders (BULL LOGO) Merrill Lynch Investment Managers www.mlim.ml.com MuniHoldings Insured Fund, Inc. Annual Report April 30, 2004 MuniHoldings Insured Fund, Inc. seeks to provide shareholders with current income exempt from Federal income taxes by investing primarily in a portfolio of long-term, investment grade municipal obligations the interest on which, in the opinion of bond counsel to the issuer, is exempt from Federal income taxes. Under normal circumstances, the Fund invests at least 80% of its total assets in municipal bonds that are covered by insurance. This report, including the financial information herein, is transmitted to shareholders of MuniHoldings Insured Fund, Inc. for their information. It is not a prospectus. Past performance results shown in this report should not be considered a representation of future performance. The Fund has leveraged its Common Stock and intends to remain leveraged by issuing Preferred Stock to provide the Common Stock shareholders with a potentially higher rate of return. Leverage creates risks for Common Stock shareholders, including the likelihood of greater volatility of net asset value and market price of shares of the Common Stock, and the risk that fluctuations in the short-term dividend rates of the Preferred Stock may affect the yield to Common Stock shareholders. Statements and other information herein are as dated and are subject to change. A description of the policies and procedures that the Fund uses to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling toll-free 1-800-MER-FUND (1-800-637-3863); (2) on www.mutualfunds.ml.com; and (3) on the Securities and Exchange Commission's website at http://www.sec.gov. MuniHoldings Insured Fund, Inc. Box 9011 Princeton, NJ 08543-9011 (GO PAPERLESS LOGO) It's Fast, Convenient, & Timely! To sign up today, go to www.icsdelivery.com/live. MuniHoldings Insured Fund, Inc. The Benefits and Risks of Leveraging MuniHoldings Insured Fund, Inc. utilizes leveraging to seek to enhance the yield and net asset value of its Common Stock. However, these objectives cannot be achieved in all interest rate environments. To leverage, the Fund issues Preferred Stock, which pays dividends at prevailing short-term interest rates, and invests the proceeds in long-term municipal bonds. The interest earned on these investments is paid to Common Stock shareholders in the form of dividends, and the value of these portfolio holdings is reflected in the per share net asset value of the Fund's Common Stock. However, in order to benefit Common Stock shareholders, the yield curve must be positively sloped; that is, short-term interest rates must be lower than long-term interest rates. At the same time, a period of generally declining interest rates will benefit Common Stock shareholders. If either of these conditions change, then the risks of leveraging will begin to outweigh the benefits. To illustrate these concepts, assume a fund's Common Stock capitalization of $100 million and the issue of Preferred Stock for an additional $50 million, creating a total value of $150 million available for investment in long-term municipal bonds. If prevailing short-term interest rates are approximately 3% and long-term interest rates are approximately 6%, the yield curve has a strongly positive slope. The fund pays dividends on the $50 million of Preferred Stock based on the lower short-term interest rates. At the same time, the fund's total portfolio of $150 million earns the income based on long-term interest rates. Of course, increases in short-term interest rates would reduce (and even eliminate) the dividends on the Common Stock. In this case, the dividends paid to Preferred Stock shareholders are significantly lower than the income earned on the fund's long-term investments, and therefore the Common Stock shareholders are the beneficiaries of the incremental yield. However, if short-term interest rates rise, narrowing the differential between short-term and long-term interest rates, the incremental yield pickup on the Common Stock will be reduced or eliminated completely. At the same time, the market value on the fund's Common Stock (that is, its price as listed on the New York Stock Exchange), may, as a result, decline. Furthermore, if long-term interest rates rise, the Common Stock's net asset value will reflect the full decline in the price of the portfolio's investments, since the value of the fund's Preferred Stock does not fluctuate. In addition to the decline in net asset value, the market value of the fund's Common Stock may also decline. As a part of its investment strategy, the Fund may invest in certain securities whose potential income return is inversely related to changes in a floating interest rate ("inverse floaters"). In general, income on inverse floaters will decrease when short-term interest rates increase and increase when short-term interest rates decrease. Investments in inverse floaters may be characterized as derivative securities and may subject the Fund to the risks of reduced or eliminated interest payments and losses of invested principal. In addition, inverse floaters have the effect of providing investment leverage and, as a result, the market value of such securities will generally be more volatile than that of fixed- rate, tax-exempt securities. To the extent the Fund invests in inverse floaters, the market value of the Fund's portfolio and the net asset value of the Fund's shares may also be more volatile than if the Fund did not invest in these securities. As of April 30, 2004, the percentage of the Fund's total net assets invested in inverse floaters was .62%. Swap Agreements The Fund may also invest in swap agreements, which are over-the- counter contracts in which one party agrees to make periodic payments based on the change in market value of a specified bond, basket of bonds, or index in return for periodic payments based on a fixed or variable interest rate or the change in market value of a different bond, basket of bonds or index. Swap agreements may be used to obtain exposure to a bond or market without owning or taking physical custody of securities. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 A Letter From the President Dear Shareholder For the six-month and 12-month periods ended April 30, 2004, the Lehman Brothers Municipal Bond Index posted returns of +1.19% and +2.68%, respectively. Its taxable counterpart, the Lehman Brothers Aggregate Bond Index, had returns of +1.25% and +1.82% for the same periods. Amid considerable month-to-month volatility, tax-exempt bond yields rose over the past year, although not to the same extent as 10-year U.S. Treasury yields. In all, tax-exempt securities continued to be an attractive fixed income investment alternative. As of April month-end, the Federal Reserve Board maintained its accommodative policy stance, although a better-than-expected employment report for the month of March prompted speculation that an interest rate increase could come sooner than many had expected. On April 2, 2004, the good news on the employment front - previously the one dim spot in an otherwise bright economic picture - helped prompt the yield on the 10-year Treasury bond to spike nearly 25 basis points (.25%), from 3.91% to 4.15%. Market watchers continue to monitor the economic data and Federal Reserve Board language for indications of interest rate direction. If economic growth maintains its recent pace and employment figures continue to improve, many believe it is just a matter of time before interest rates move upward. Equity markets, in the meantime, gleaned support from the improving economic environment and provided attractive returns. For the six-month and 12-month periods ended April 30, 2004, the Standard & Poor's 500 Index returned +6.27% and +22.88%, respectively. Significant fiscal and monetary stimulus in 2003, including low interest rates and tax cuts, has opened the door to consumer spending, capital spending, increases in exports and long-awaited job growth. As expected, these developments have led the way to improvements in corporate earnings - a positive for stock markets. The events and efforts of the past year leave us with a much stronger economy today. Of course, markets will always fluctuate, and there are many uncertainties - not the least of which are geopolitical in nature - which can translate into negative market movements. Keeping this in mind, we encourage you to revisit your portfolio and your asset allocation strategy to ensure you are well positioned to take advantage of the opportunities that lie ahead. Importantly, your financial advisor can help you develop a strategy most suitable for your circumstances through all types of market and economic cycles. We thank you for trusting Merrill Lynch Investment Managers with your investment assets, and we look forward to serving you in the months and years ahead. Sincerely, (Terry K. Glenn) Terry K. Glenn President and Director MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 A Discussion With Your Fund's Portfolio Manager The Fund significantly outperformed its peer group for the fiscal year and was effectively able to enhance yield while preserving net asset value in a volatile interest rate environment. Describe the recent market environment relative to municipal bonds. Amid considerable volatility, yields on long-term fixed income securities moved higher over the past 12 months as bond prices, which typically move opposite of yields, declined. Movements in bond yields were largely driven by the market's perception of and response to economic activity, Federal Reserve Board language and employment data. Early in the period, bond yields declined (and prices rose) as the Federal Reserve Board lowered short-term interest rates in order to bolster the then-sputtering U.S. economic activity. By mid-June 2003, long-term U.S. Treasury bond yields had fallen to their recent historic low of 4.17%. As economic growth gained steam, yields rose (and prices declined) dramatically until again turning downward on continued reports of lackluster job growth. The trend reversed once more in early April 2004 when a surprisingly strong monthly employment report triggered fears that the long-accommodative Federal Reserve Board might raise interest rates sooner than many had expected. As a result, bond yields rose (prices fell) for the remainder of the period. At the end of April, long-term Treasury bond yields had risen to nearly 5.30%, an increase of more than 50 basis points (.50%) over the 12-month period. Ten-year U.S. Treasury note yields ended April at 4.30%, an increase of more than 65 basis points during the past year. Tax-exempt bond yields generally mimicked the movement of their taxable counterparts, although volatility in the municipal market was more subdued. Long-term revenue bond yields, as measured by the Bond Buyer Revenue Bond Index, rose less than 20 basis points over the past 12 months. For the same period, yields on AAA-rated issues maturing in 30 years rose approximately 30 basis points to 4.93% while yields on 10-year, AAA-rated issues increased more than 40 basis points to nearly 4%, according to Municipal Market Data. The more marked increase in 10-year bond yields may be attributed to the fact that recent issuance has been heavily concentrated in the 10-year - 20-year range. The resulting supply imbalance prompted higher intermediate bond yields (and lower prices). Longer-maturity and lower-rated issues continued to benefit from more favorable supply/demand factors and, therefore, have seen less price depreciation. Overall, in the past 12 months, nearly $380 billion in long-term tax-exempt bonds was issued, a decline of approximately 2% versus the year prior. In more recent months, however, the pace of underwriting has quickened. More than $92 billion in long-term municipal obligations was marketed in the past three months, an increase of nearly 5% compared to the same period a year ago. While investor enthusiasm for stocks has taken some attention away from fixed income markets, overall demand for tax-exempt municipal bonds has remained positive. Data from the Investment Company Institute indicates that, in just the first three months of 2004, tax-exempt bond funds have seen net new cash flows of almost $640 million. How did the Fund perform during the fiscal year in light of the existing market conditions? For the 12-month period ended April 30, 2004, the Common Stock of MuniHoldings Insured Fund, Inc. had net annualized yields of 6.29% and 7.03%, based on a year-end per share net asset value of $14.12 and a per share market price of $12.64, respectively, and $.888 per share income dividends. Over the same period, the total investment return on the Fund's Common Stock was +4.07%, based on a change in per share net asset value from $14.48 to $14.12, and assuming reinvestment of $.885 per share ordinary income dividends. For the six-month period ended April 30, 2004, the total investment return on the Fund's Common Stock was +1.87%, based on a change in per share net asset value from $14.32 to $14.12, and assuming reinvestment of $.447 per share income dividends. For the six-month period ended April 30, 2004, the Fund's Auction Market Preferred Stock (AMPS) had an average yield of .95% for Series A and .93% for Series B. The Fund's return, based on net asset value, for the year exceeded that of its comparable Lipper category of Insured Municipal Debt Funds (Leveraged), which had a return of +2.25% for the 12-month period. (Funds in this Lipper category invest primarily in municipal debt issues insured as to timely payment. These funds can be leveraged via use of debt, preferred equity and/or reverse repurchase agreements.) The portfolio's slightly defensive positioning in a very volatile, rising interest rate environment benefited performance during the period. Our strategy was to avoid those areas of the yield curve that were demonstrating the most volatility, particularly the 10-year and shorter areas of the curve, and to move further out on the curve to the 20-year range and longer. This not only shielded the Fund from much of the volatility, but also helped to augment yield. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Also benefiting performance was our strategic approach to the California municipal bond market. A combination of heavy supply, negative budgetary news and the gubernatorial recall election caused California bonds to become very inexpensive on a relative basis. We took advantage of this by increasing the Fund's exposure to the California market. With the heavy issuance completed and the uncertainty of the governorship eliminated, spreads on California bonds narrowed. We also made full use of our uninsured basket during the period in an effort to enhance performance. The Fund is permitted to invest up to 20% of net assets in uninsured bonds. These types of credits typically outperform when interest rates start to rise and the economy begins to strengthen. This outperformance comes from a general rise in credit strength and a reduction in the risk premium commanded on such securities, causing the spread required on these issues to narrow. So, in anticipation of an improving economy, we increased our uninsured basket close to its full allotment about a year ago. As economic conditions improved over the past 12 months, this unenhanced portion of the portfolio performed very well on a relative basis, contributing to the Fund's overall outperformance for the period. For a description of the Fund's total investment return based on a change in the per share market value of the Fund's Common Stock (as measured by the trading price of the Fund's shares on the New York Stock Exchange), and assuming reinvestment of dividends, please refer to the Financial Highlights section included in this report. As a closed-end fund, the Fund's shares may trade in the secondary market at a premium or discount to the Fund's net asset value. As a result, total investment returns based on changes in the market value of the Fund's Common Stock can vary significantly from total investment return based on changes in the Fund's net asset value. What changes were made to the portfolio during the period? We strategically shifted in and out of the California market as opportunities presented themselves. At the close of the period, we remained modestly overweight in California bonds. Because the California market is still somewhat inexpensive on a relative basis, we believe this area of the portfolio should perform well over time. Although there could be some intermittent weakness due to the state's ongoing budgetary shortfall, we would probably again increase our position in California bonds on such weakness to once more gain exposure to a sector that we believe offers good relative value. Another change involved some shifting of the portfolio's uninsured basket. A year ago, we increased some of the health care related issues in the portfolio as we observed wide credit spreads, primarily because of an abundance of supply. We have since started to reduce these positions as the credit spreads began to tighten considerably. The goal again was to lock in gains on the outperformance. We sought to remain fully invested throughout the period to enhance the Fund's distribution yield. We also aimed to mute the volatility of the portfolio by participating in the swap market. This helped to reduce the portfolio's duration temporarily in case of interest rate spikes. During the period, the Fund's borrowing costs generally remained in the .75% - 1.25% range. These attractive funding levels, in combination with the steep municipal yield curve, continued to generate significant income to the Fund's Common Stock shareholders. The Federal Reserve Board appears poised to begin raising short-term interest rates, most likely later in 2004. The increase, however, is expected to be gradual and should not have a material impact on the positive advantage leverage has had on the Fund's Common Stock yield. However, should the spread between short-term and long-term interest rates narrow, the benefits of leveraging will decline and, as a result, reduce the yield on the Fund's Common Stock. At the end of the period, the Fund's leverage amount, due to AMPS, was 42.44% of total assets. (For a more complete explanation of the benefits and risks of leveraging, see page 2 of this report to shareholders.) How would you characterize the Fund's position at the close of the period? We remained fully invested at the close of the period and defensively structured. In our opinion, the economy is on track for continued growth, which we expect should push interest rates higher over time. Robert A. DiMella Vice President and Portfolio Manager May 21, 2004 MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Schedule of Investments (In Thousands) S&P Moody's Face State Ratings++ Ratings++ Amount Municipal Bonds Value Arizona--1.2% NR* Aaa $ 2,000 Arizona Tourism and Sports Authority, Tax Revenue Bonds (Multi-Purpose Stadium Facility), Series A, 5.375% due 7/01/2021 (b) $ 2,133 Arkansas--1.2% NR* Aaa 1,930 University of Arkansas, University Revenue Bonds (Fayetteville Campus), 5.50% due 12/01/2018 (c) 2,096 California-- AAA Aaa 3,250 Brea and Olinda, California, Unified School District, COP, 39.0% Refunding, Series A, 5.125% due 8/01/2026 (f) 3,283 AAA Aaa 3,000 California Infrastructure and Economic Development Bank Revenue Bonds (Bay Area Toll Bridges), 1st Lien, Series A, 5.25% due 7/01/2021 (f) 3,156 AAA Aaa 3,500 California Pollution Control Financing Authority, PCR, Refunding (Pacific Gas & Electric), AMT, Series A, 5.35% due 12/01/2016 (b) 3,692 California State Department of Water Resources, Power Supply Revenue Bonds, Series A: AAA Aaa 4,000 5.375% due 5/01/2017 (d) 4,300 BBB+ A3 3,400 5.25% due 5/01/2020 3,475 California State, GO, Refunding: AAA Baa1 5,750 5.25% due 10/01/2020 (d) 6,041 BBB Baa1 7,000 5.375% due 10/01/2027 7,034 BBB Aaa 2,900 California State, Various Purpose, GO, 5.50% due 4/01/2030 2,967 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Bonds: BBB Baa3 1,145 Series A-3, 7.875% due 6/01/2042 1,215 BBB- Baa2 2,000 Series B, 5.50% due 6/01/2018 2,054 BBB- Baa2 5,000 Series B, 5.75% due 6/01/2022 5,150 AAA Aaa 1,600 Series B, 5.375% due 6/01/2028 (c) 1,643 AAA Aaa 5,305 Industry, California, Urban Development Agency, Tax Allocation Bonds (Civic Recreational Industrial Redevelopment Project No. 1), Series B, 5% due 5/01/2019 (b) 5,460 AAA Aaa 2,000 Los Angeles, California, Unified School District, GO (Election of 1997), Series F, 5% due 7/01/2021 (c) 2,055 AAA Aaa 2,480 Port Oakland, California, Revenue Refunding Bonds, Series M, 5.25% due 11/01/2020 (c) 2,594 AA Aa3 1,750 Sacramento County, California, Sanitation District, Financing Authority, Revenue Refunding Bonds, RIB, Series 366, 10.362% due 12/01/2027 (h) 1,965 AAA Aaa 5,000 San Francisco, California, City and County Airport Commission, International Airport, Special Facilities Lease Revenue Bonds (SFO Fuel Company LLC), AMT, Series A, 5.25% due 1/01/2027 (a) 5,026 San Pablo, California, Joint Powers Financing Authority, Tax Allocation Revenue Refunding Bonds (b): AAA Aaa 2,635 5.66%** due 12/01/2024 848 AAA Aaa 2,355 5.66%** due 12/01/2025 710 AAA Aaa 2,355 5.66%** due 12/01/2026 669 AAA Aaa 2,000 University of California Revenue Bonds (Multiple Purpose Projects), Series Q, 5% due 9/01/2022 (f) 2,040 AAA Aaa 2,000 Walnut, California, Energy Center Authority Revenue Bonds, Series A, 5% due 1/01/2034 (a) 1,981 AAA Aaa 3,480 West Contra Costa, California, Unified School District, GO, Series C, 5% due 8/01/2021 (c) 3,567 Portfolio Abbreviations To simplify the listings of MuniHoldings Insured Fund, Inc.'s portfolio holdings in the Schedule of Investments, we have abbreviated the names of many of the securities according to the list at right. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation GO General Obligation Bonds HDA Housing Development Authority HFA Housing Finance Agency PCR Pollution Control Revenue Bonds RIB Residual Interest Bonds MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Schedule of Investments (continued) (In Thousands) S&P Moody's Face State Ratings++ Ratings++ Amount Municipal Bonds Value Colorado--7.7% Aurora, Colorado, COP (a): AAA Aaa $ 2,440 5.75% due 12/01/2015 $ 2,720 AAA Aaa 2,560 5.75% due 12/01/2016 2,852 AAA Aaa 2,730 5.75% due 12/01/2017 3,033 AAA Aaa 2,890 5.75% due 12/01/2018 3,211 Larimer County, Colorado, Poudre School District Number R-1, GO (b): NR* Aaa 1,000 5.75% due 12/15/2021 1,107 NR* Aaa 1,000 5.50% due 12/15/2022 1,074 Connecticut-- AAA Aaa 8,000 Connecticut State, HFA, Revenue Bonds (Housing Mortgage Program), 7.8% AMT, Series D, 5.15% due 11/15/2022 (b) 8,135 AA Baa3 5,710 Connecticut State Health and Educational Facilities Authority, Revenue Refunding Bonds (University of Hartford), Series E, 5.50% due 7/01/2022 (i) 5,965 Florida--3.5% AAA Aaa 3,500 Dade County, Florida, Water and Sewer System Revenue Bonds, 5.25% due 10/01/2021 (c) 3,680 NR* Aaa 2,500 Escambia County, Florida, Health Facilities Authority, Health Facility Revenue Bonds (Florida Health Care Facility Loan), 5.95% due 7/01/2020 (a) 2,608 Illinois--16.4% Chicago, Illinois, GO (c): AAA Aaa 5,000 5.50% due 1/01/2021 5,350 AAA Aaa 2,790 Series A, 6% due 1/01/2018 3,153 AAA Aaa 2,000 Series A, 6% due 1/01/2019 2,257 AAA Aaa 3,175 Series A, 6% due 1/01/2020 3,557 Chicago, Illinois, O'Hare International Airport Revenue Bonds, 3rd Lien, AMT, Series B-2: AAA Aaa 1,800 5.75% due 1/01/2023 (f) 1,921 AAA Aaa 4,300 6% due 1/01/2029 (d) 4,636 AAA Aaa 3,500 Chicago, Illinois, Parking District, GO, Series A, 5.75% due 1/01/2017 (c) 3,862 AAA Aaa 4,500 Illinois State, GO, First Series, 6% due 1/01/2018 (c) 5,052 AAA Aaa 45 Lake, Cook, Kane and McHenry Counties, Illinois, Community United School District, GO, 5.75% due 12/01/2019 (c) 50 Kentucky--2.6% AAA Aaa 4,380 Fayette County, Kentucky, School District Finance Corporation, School Building Revenue Bonds, 5.50% due 9/01/2019 (b) 4,740 Maine--0.3% AA+ Aa1 495 Maine State Housing Authority, Mortgage Revenue Bonds, AMT, Series F-2, 5.25% due 11/15/2032 497 Massachusetts-- AAA Aaa 65 Massachusetts State, GO, Refunding, Series D, 5.375% due 1.4% 8/01/2012 (b)(g) 72 AAA Aaa 2,440 Massachusetts State, HFA, Rental Housing Mortgage Revenue Bonds, AMT, Series C, 5.50% due 7/01/2032 (f) 2,485 Michigan--4.8% AAA Aaa 2,035 Boyne City, Michigan, Public School District, GO, 5.75% due 5/01/2017 (c) 2,242 Michigan State Strategic Fund, Limited Obligation Revenue Refunding Bonds, AMT (d): AAA Aaa 1,200 (Detroit Edison Company Project), Series A, 5.50% due 6/01/2030 1,236 AAA Aaa 3,500 (Detroit Edison Company Project), Series C, 5.65% due 9/01/2029 3,620 AAA Aaa 1,500 (Detroit Edison Pollution), Series B, 5.65% due 9/01/2029 1,551 MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Schedule of Investments (continued) (In Thousands) S&P Moody's Face State Ratings++ Ratings++ Amount Municipal Bonds Value Minnesota--2.4% NR* Aaa $ 4,015 Sauk Rapids, Minnesota, Independent School District Number 47, GO, Series A, 5.65% due 2/01/2019 (b) $ 4,412 Mississippi-- BBB- Ba1 2,000 Mississippi Business Finance Corporation, Mississippi, PCR, 1.1% Refunding (System Energy Resources Inc. Project), 5.875% due 4/01/2022 2,009 Missouri--7.7% AAA Aaa 2,000 Cape Girardeau, Missouri, School District Number 063, GO (Missouri Direct Deposit Program), 5.50% due 3/01/2018 (c) 2,168 Mehlville, Missouri, School District Number R-9, COP (f): AAA Aaa 1,570 (Missouri Capital Improvement Projects), 5.50% due 9/01/2015 1,712 AAA Aaa 2,610 (Missouri Capital Improvement Projects), 5.50% due 9/01/2018 2,826 AAA Aaa 1,925 Series A, 5.50% due 3/01/2014 2,107 AAA Aaa 2,175 Series A, 5.50% due 3/01/2015 2,362 AAA Aaa 1,170 Series A, 5.50% due 3/01/2016 1,267 AAA Aaa 1,500 Series A, 5.50% due 3/01/2017 1,622 Nebraska--2.1% Omaha Convention Hotel Corporation, Nebraska, Convention Center Revenue Bonds, First Tier, Series A (a): AAA Aaa 1,585 5.50% due 4/01/2020 1,700 AAA Aaa 2,000 5.50% due 4/01/2021 2,134 Nevada--2.4% AAA Aaa 4,000 Las Vegas, Nevada, New Convention and Visitors Authority Revenue Bonds, 5.75% due 7/01/2018 (a) 4,444 New Hampshire-- AAA Aaa 2,250 New Hampshire Health and Education Facilities Authority 1.3% Revenue Bonds (University System of New Hampshire), 5.375% due 7/01/2020 (a) 2,403 New Jersey-- NR* Aaa 2,750 New Jersey State Highway Authority, Garden State Parkway General 4.9% Revenue Refunding Bonds, 6% due 1/01/2019 (e) 3,195 AAA Aaa 3,000 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Refunding Bonds, Series B, 6% due 12/15/2011 (b)(g) 3,488 BBB Baa3 2,320 Tobacco Settlement Financing Corporation of New Jersey Revenue Bonds, 7% due 6/01/2041 2,275 New York--25.7% AAA Aaa 10,000 Nassau Health Care Corporation, New York, Health System Revenue Bonds, 5.75% due 8/01/2022 (f) 10,852 New York City, New York, GO, Refunding: AAA Aaa 6,250 Series C, 5.875% due 2/01/2016 (b) 6,798 AAA Aaa 7,500 Series G, 5.75% due 2/01/2017 (f) 8,017 AAA Aaa 7,085 New York City, New York, GO, Series G, 5.75% due 10/15/2012 (f) 7,819 AAA Aaa 1,665 New York State Dormitory Authority Revenue Bonds (School Districts Financing Program), Series D, 5.25% due 10/01/2023 (b) 1,739 AAA Aaa 1,030 New York State Dormitory Authority, Revenue Refunding Bonds (School Districts Bond Financing Program), Series A, 5% due 4/01/2014 (b) 1,104 Tobacco Settlement Financing Corporation of New York Revenue Bonds: AAA Aaa 3,000 Series A-1, 5.25% due 6/01/2022 (a) 3,103 AA- A3 4,900 Series C-1, 5.50% due 6/01/2017 5,210 AA- A3 2,000 Series C-1, 5.50% due 6/01/2021 2,110 Ohio--1.7% AAA Aaa 3,000 Butler County, Ohio, Transportation Improvement District, Series A, 5.125% due 4/01/2017 (f) 3,146 MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Schedule of Investments (continued) (In Thousands) S&P Moody's Face State Ratings++ Ratings++ Amount Municipal Bonds Value Oregon--0.9% NR* Aaa $ 1,400 Portland, Oregon, Urban Renewal and Redevelopment Tax Allocation Bonds (Oregon Convention Center), Series A, 5.75% due 6/15/2015 (a) $ 1,558 Pennsylvania-- AAA Aaa 6,045 Philadelphia, Pennsylvania, Airport Revenue Bonds (Philadelphia 11.6% Airport System), AMT, Series B, 5.50% due 6/15/2017 (c) 6,339 AAA Aaa 4,930 Philadelphia, Pennsylvania, School District, GO, Series A, 5.25% due 4/01/2015 (b) 5,246 A- NR* 2,430 Sayre, Pennsylvania, Health Care Facilities Authority Revenue Bonds (Guthrie Health Issue), Series B, 5.85% due 12/01/2020 2,551 AAA Aaa 4,250 Washington County, Pennsylvania, Capital Funding Authority Revenue Bonds (Capital Projects and Equipment Program), 6.15% due 12/01/2029 (a) 4,856 NR* Aaa 1,885 York County, Pennsylvania, School of Technology Authority, Lease Revenue Refunding Bonds, 5.50% due 2/15/2022 (c) 2,015 Rhode Island-- NR* Aaa 5,000 Providence, Rhode Island, Redevelopment Agency Revenue Refunding 3.0% Bonds (Public Safety and Municipal Buildings), Series A, 5.75% due 4/01/2019 (a) 5,536 South Carolina-- BBB Baa3 1,690 Tobacco Settlement Revenue Management Authority of South Carolina, 0.8% Tobacco Settlement Revenue Bonds, Series B, 6.375% due 5/15/2028 1,539 Tennessee--3.4% Tennessee HDA, Revenue Refunding Bonds (Homeownership Program), AMT, Series A (f): AAA Aaa 3,195 5.25% due 7/01/2022 3,273 AAA Aaa 2,935 5.35% due 1/01/2026 2,989 Texas--5.7% A- Aa3 3,000 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.), Trust Certificates, Second Tier, Series B, 6% due 1/01/2023 3,113 AAA Aaa 1,900 Dallas-Fort Worth, Texas, International Airport Revenue Bonds, AMT, Series A, 5.50% due 11/01/2033 (b) 1,951 AAA Aaa 3,005 Houston, Texas, Community College System, Participation Interests, COP (Alief Center Project), 5.75% due 8/15/2022 (b) 3,275 AAA Aaa 1,910 Lubbock, Texas, GO, Certificates of Obligation (Municipal Drainage Utility), Series D, 5% due 2/15/2021 (b) 1,944 Virginia--3.4% AAA Aaa 6,100 Virginia State HDA, Commonwealth Mortgage Revenue Bonds, Series J, Sub-Series J-1, 5.20% due 7/01/2019 (b) 6,188 Washington-- AAA Aaa 1,655 Chelan County, Washington, Public Utility District Number 001, 3.6% Consolidated Revenue Bonds (Chelan Hydro System), AMT, Series A, 5.45% due 7/01/2037 (a) 1,688 AAA Aaa 2,710 King County, Washington, Sewer Revenue Refunding Bonds, Series B, 5.50% due 1/01/2027 (f) 2,839 AAA Aaa 1,810 Snohomish County, Washington, Public Utility District Number 001, Electric Revenue Bonds, 5.50% due 12/01/2022 (f) 1,921 West Virginia-- AAA Aaa 5,000 West Virginia State Housing Development Fund, Housing Finance 2.8% Revenue Refunding Bonds, Series D, 5.20% due 11/01/2021 (b) 5,123 Wyoming--0.9% AA NR* 1,500 Wyoming Student Loan Corporation, Student Loan Revenue Refunding Bonds, Series A, 6.20% due 6/01/2024 1,593 Total Municipal Bonds (Cost--$299,280)--171.3% 311,379 MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Schedule of Investments (concluded) (In Thousands) Shares Held Short-Term Securities Value 321 Merrill Lynch Institutional Tax-Exempt Fund (j) $ 321 Total Short-Term Securities (Cost--$321)--0.2% 321 Total Investments (Cost--$299,601)--171.5% 311,700 Other Assets Less Liabilities--2.2% 4,038 Preferred Stock, at Redemption Value--(73.7%) (134,012) --------- Net Assets Applicable to Common Stock--100.0% $ 181,726 ========= (a)AMBAC Insured. (b)MBIA Insured. (c)FGIC Insured. (d)XL Capital Insured. (e)Escrowed to maturity. (f)FSA Insured. (g)Prerefunded. (h)The interest rate is subject to change periodically and inversely based upon prevailing market rates. The interest rate shown is the rate in effect at April 30, 2004. (i)Radian Insured. (j)Investments in companies considered to be an affiliate of the Fund (such companies are defined as "Affiliated Companies" in Section 2(a)(3) of the Investment Company Act of 1940) are as follows: (in Thousands) Net Dividend Affiliate Activity Income Merrill Lynch Institutional Tax-Exempt Fund (7,200) $49 *Not Rated. **Represents a zero coupon bond; the interest rate shown reflects the effective yield at the time of purchase by the Fund. ++Ratings of issues shown are unaudited. Forward interest rate swaps entered into as of April 30, 2004 were as follows: (in Thousands) Notional Unrealized Amount Appreciation Receive a variable rate equal to 7-Day Bond Market Association Municipal Swap Index Rate and pay a fixed rate equal to 4.392% Broker, J.P. Morgan Chase Bank Expires July 2024 $36,000 $61 See Notes to Financial Statements. Quality Profile (unaudited) The quality ratings of securities in the Fund as of April 30, 2004 were as follows: Percent of Total S&P Rating/Moody's Rating Investments AAA/Aaa 84.6% AA/Aa 6.6 A/A 1.9 BBB/Baa 6.8 NR (Not Rated) 0.1 MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Statement of Net Assets As of April 30, 2004 Assets Investments in unaffiliated securities, at value (identified cost--$299,279,639) $ 311,379,268 Investments in affiliated securities, at value (identified cost--$320,732) 320,732 Unrealized appreciation on forward interest rate swaps 60,696 Cash 34,858 Receivables: Interest $ 5,062,711 Securities sold 2,315,597 Dividends from affiliates 8 7,378,316 --------------- Prepaid expenses 1,878 --------------- Total assets 319,175,748 --------------- Liabilities Payables: Securities purchased 2,973,164 Investment adviser 151,085 Dividends to Common Stock shareholders 127,884 Other affiliates 2,208 3,254,341 --------------- Accrued expenses and other liabilities 183,418 --------------- Total liabilities 3,437,759 --------------- Preferred Stock Preferred Stock, at redemption value, par value $.10 per share (2,680 Series A Shares and 2,680 Series B Shares of AMPS* issued and outstanding at $25,000 per share liquidation preference) 134,012,461 --------------- Net Assets Applicable to Common Stock Net assets applicable to Common Stock $ 181,725,528 =============== Analysis of Net Assets Applicable to Common Stock Common Stock, par value $.10 per share (12,867,541 shares issued and outstanding) $ 1,286,754 Paid-in capital in excess of par 190,198,389 Undistributed investment income--net $ 3,493,447 Accumulated realized capital losses on investments--net (25,413,387) Unrealized appreciation on investments--net 12,160,325 --------------- Total accumulated losses--net (9,759,615) --------------- Total--Equivalent to $14.12 net asset value per share of Common Stock (market price--$12.64) $ 181,725,528 =============== *Auction Market Preferred Stock. See Notes to Financial Statements. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Statement of Operations For the Year Ended April 30, 2004 Investment Income Interest $ 15,652,867 Dividends from affiliates 48,987 --------------- Total income 15,701,854 --------------- Expenses Investment advisory fees $ 1,772,416 Commission fees 340,038 Accounting services 116,712 Professional fees 69,437 Transfer agent fees 49,416 Printing and shareholder reports 41,313 Directors' fees and expenses 35,302 Listing fees 21,250 Custodian fees 19,395 Pricing fees 11,391 Other 38,429 --------------- Total expenses before waiver and reimbursement 2,515,099 Waiver and reimbursement of expenses (185,188) --------------- Total expenses after waiver and reimbursement 2,329,911 --------------- Investment income--net 13,371,943 --------------- Realized & Unrealized Gain (Loss) on Investments--Net Realized gain on investments--net 4,700,599 Change in unrealized appreciation on investments--net (10,118,251) --------------- Total realized and unrealized loss on investments--net (5,417,652) --------------- Dividends to Preferred Stock Shareholders Investment income--net (1,212,833) --------------- Net Increase in Net Assets Resulting from Operations $ 6,741,458 =============== See Notes to Financial Statements. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Statements of Changes in Net Assets For the Year Ended April 30, Increase (Decrease) in Net Assets: 2004 2003 Operations Investment income--net $ 13,371,943 $ 13,675,109 Realized gain (loss) on investments--net 4,700,599 (2,336,371) Change in unrealized appreciation on investments--net (10,118,251) 10,263,841 Dividends to Preferred Stock shareholders (1,212,833) (1,650,076) --------------- --------------- Net increase in net assets resulting from operations 6,741,458 19,952,503 --------------- --------------- Dividends to Common Stock Shareholders Investment income--net (11,387,774) (10,866,639) --------------- --------------- Net decrease in net assets resulting from dividends to Common Stock shareholders (11,387,774) (10,866,639) --------------- --------------- Net Assets Applicable to Common Stock Total increase (decrease) in net assets applicable to Common Stock (4,646,316) 9,085,864 Beginning of year 186,371,844 177,285,980 --------------- --------------- End of year* $ 181,725,528 $ 186,371,844 =============== =============== *Undistributed investment income--net $ 3,493,447 $ 2,722,111 =============== =============== See Notes to Financial Statements. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Financial Highlights The following per share data and ratios have been derived from information provided in the financial statements. For the Year Ended April 30, Increase (Decrease) in Net Asset Value: 2004 2003 2002 2001*** 2000*** Per Share Operating Performance Net asset value, beginning of year $ 14.48 $ 13.78 $ 13.29 $ 12.29 $ 15.25 ---------- ---------- ---------- ---------- ---------- Investment income--net 1.04+++ 1.06+++ 1.07 1.14 1.17 Realized and unrealized gain (loss) on investments--net (.42) .62 .44 1.01 (2.82) Dividends to Preferred Stock shareholders from: Investment income--net (.09) (.13) (.21) (.41) (.36) In excess of realized gain on investments--net -- -- -- -- (.03) ---------- ---------- ---------- ---------- ---------- Total from investment operations .53 1.55 1.30 1.74 (2.04) ---------- ---------- ---------- ---------- ---------- Less dividends and distributions to Common Stock shareholders: Investment income--net (.89) (.85) (.81) (.74) (.83) In excess of realized gain on investments--net -- -- -- -- (.09) ---------- ---------- ---------- ---------- ---------- Total dividends and distributions to Common Stock shareholders (.89) (.85) (.81) (.74) (.92) ---------- ---------- ---------- ---------- ---------- Net asset value, end of year $ 14.12 $ 14.48 $ 13.78 $ 13.29 $ 12.29 ========== ========== ========== ========== ========== Market price per share, end of year $ 12.64 $ 13.50 $ 12.65 $ 12.89 $ 11.00 ========== ========== ========== ========== ========== Total Investment Return* Based on market price per share (.07%) 13.79% 4.38% 24.67% (17.87%) ========== ========== ========== ========== ========== Based on net asset value per share 4.07% 12.04% 10.28% 15.05% (13.13%) ========== ========== ========== ========== ========== Ratios Based on Average Net Assets of Common Stock Total expenses, net of waiver and reimbursement** 1.24% 1.28% 1.30% 1.15% 1.28% ========== ========== ========== ========== ========== Total expenses** 1.34% 1.38% 1.39% 1.44% 1.39% ========== ========== ========== ========== ========== Total investment income--net** 7.12% 7.55% 7.75% 8.71% 8.87% ========== ========== ========== ========== ========== Amount of dividends to Preferred Stock shareholders .65% .91% 1.50% 3.14% 2.74% ========== ========== ========== ========== ========== Investment income--net, to Common Stock shareholders 6.47% 6.64% 6.25% 5.57% 6.13% ========== ========== ========== ========== ========== Ratios Based on Average Net Assets of Common & Preferred Stock** Total expenses, net of waiver and reimbursement .72% .74% .74% .64% .71% ========== ========== ========== ========== ========== Total expenses .78% .80% .79% .80% .77% ========== ========== ========== ========== ========== Total investment income--net 4.14% 4.34% 4.41% 4.84% 4.93% ========== ========== ========== ========== ========== MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Financial Highlights (concluded) The following per share data and ratios have been derived For the Year Ended April 30, from information provided in the financial statements. 2004 2003 2002 2001*** 2000*** Ratios Based on Average Net Assets of Preferred Stock Dividends to Preferred Stock shareholders .90% 1.23% 1.99% 3.94% 3.42% ========== ========== ========== ========== ========== Supplemental Data Net assets applicable to Common Stock, end of year (in thousands) $ 181,726 $ 186,372 $ 177,286 $ 171,007 $ 158,094 ========== ========== ========== ========== ========== Preferred Stock outstanding, end of year (in thousands) $ 134,000 $ 134,000 $ 134,000 $ 134,000 $ 134,000 ========== ========== ========== ========== ========== Portfolio turnover 39.94% 49.59% 49.69% 94.80% 189.96% ========== ========== ========== ========== ========== Leverage Asset coverage per $1,000 $ 2,356 $ 2,391 $ 2,323 $ 2,276 $ 2,180 ========== ========== ========== ========== ========== Dividends Per Share on Preferred Stock Outstanding Series A--Investment income--net $ 225 $ 313 $ 502 $ 964 $ 854 ========== ========== ========== ========== ========== Series B--Investment income--net $ 228 $ 302 $ 491 $ 1,005 $ 852 ========== ========== ========== ========== ========== *Total investment returns based on market value, which can be significantly greater or lesser than the net asset value, may result in substantially different returns. Total investment returns exclude the effects of sales charges. If applicable, the Fund's Investment Adviser waived a portion of its management fee. Without such waiver, the Fund's performance would have been lower. **Do not reflect the effect of dividends to Preferred Stock shareholders. ***Certain prior year amounts have been reclassified to conform to current year presentation. +++Based on average shares outstanding. See Notes to Financial Statements. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Notes to Financial Statements 1. Significant Accounting Policies: MuniHoldings Insured Fund, Inc. (the "Fund") is registered under the Investment Company Act of 1940, as amended, as a non-diversified, closed-end management investment company. The Fund's financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. The Fund determines and makes available for publication the net asset value of its Common Stock on a weekly basis. The Fund's Common Stock is listed on the New York Stock Exchange under the symbol MUS. The following is a summary of significant accounting policies followed by the Fund. (a) Valuation of investments--Municipal bonds are traded primarily in the over-the-counter markets and are valued at the last available bid price in the over-the-counter market or on the basis of yield equivalents as obtained by the Fund's pricing service from one or more dealers that make markets in such securities. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their closing prices as of the close of such exchanges. Options written or purchased are valued at the last sale price in the case of exchange-traded options. In the case of options traded in the over-the-counter market, valuation is the last asked price (options written) or the last bid price (options purchased). Swap agreements are valued by quoted fair values received daily by the Fund from the counterparty. Short-term investments with a remaining maturity of sixty days or less are valued at amortized cost, which approximates market value. Securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Board of Directors of the Fund, including valuations furnished by a pricing service retained by the Fund, which may utilize a matrix system for valuations. The procedures of the pricing service and its valuations are reviewed by the officers of the Fund under the general supervision of the Board of Directors. (b) Derivative financial instruments--The Fund may engage in various portfolio investment strategies both to increase the return of the Fund and to hedge, or protect, its exposure to interest rate movements and movements in the securities markets. Losses may arise due to changes in the value of the contract or if the counterparty does not perform under the contract. * Financial futures contracts--The Fund may purchase or sell financial futures contracts and options on such futures contracts. Futures contracts are contracts for delayed delivery of securities at a specific future date and at a specific price or yield. Upon entering into a contract, the Fund deposits and maintains as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Fund agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in value of the contract. Such receipts or payments are known as variation margin and are recorded by the Fund as unrealized gains or losses. When the contract is closed, the Fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. * Options--The Fund may write covered call options and purchase call and put options. When the Fund writes an option, an amount equal to the premium received by the Fund is reflected as an asset and an equivalent liability. The amount of the liability is subsequently marked to market to reflect the current market value of the option written. When a security is purchased or sold through an exercise of an option, the related premium paid (or received) is added to (or deducted from) the basis of the security acquired or deducted from (or added to) the proceeds of the security sold. When an option expires (or the Fund enters into a closing transaction), the Fund realizes a gain or loss on the option to the extent of the premiums received or paid (or gain or loss to the extent the cost of the closing transaction exceeds the premium paid or received). Written and purchased options are non-income producing investments. * Forward interest rate swaps--The Fund may enter into forward interest rate swaps. In a forward interest rate swap, the Fund and the counterparty agree to make periodic net payments on a specified notional contract amount, commencing on a specified future effective date, unless terminated earlier. When the agreement is closed, the Fund records a realized gain or loss in an amount equal to the value of the agreement. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Notes to Financial Statements (continued) (c) 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 substantially all of its taxable income to its shareholders. Therefore, no Federal income tax provision is required. (d) Security transactions and investment income--Security transactions are recorded on the dates the transactions are entered into (the trade dates). Realized gains and losses on security transactions are determined on the identified cost basis. Dividend income is recorded on the ex-dividend dates. Interest income is recognized on the accrual basis. The Fund amortizes all premiums and discounts on debt securities. (e) Dividends and distributions--Dividends from net investment income are declared and paid monthly. Distributions of capital gains are recorded on the ex-dividend dates. 2. Investment Advisory Agreement and Transactions with Affiliates: The Fund has entered into an Investment Advisory Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. FAM is responsible for the management of the Fund's portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Fund. For such services, the Fund pays a monthly fee at an annual rate of .55% of the Fund's average weekly net assets, including proceeds from the issuance of Preferred Stock. For the year ended April 30, 2004, FAM earned fees of $1,772,416 of which $172,724 was waived. For the year ended April 30, 2004, FAM reimbursed the Fund in the amount of $12,464. For the year ended April 30, 2004, the Fund reimbursed FAM $6,410 for certain accounting services. Certain officers and/or directors of the Fund are officers and/or directors of FAM, PSI, and/or ML & Co. 3. Investments: Purchases and sales of investments, excluding short-term securities, for the year ended April 30, 2004 were $134,726,441 and $124,332,172, respectively. Net realized gains for the year ended April 30, 2004 and net unrealized appreciation as of April 30, 2004 were as follows: Realized Unrealized Gains Appreciation Long-term investments $ 4,394,741 $ 12,099,629 Forward interest rate swaps 305,858 60,696 --------------- --------------- Total $ 4,700,599 $ 12,160,325 =============== =============== As of April 30, 2004, net unrealized appreciation for Federal income tax purposes aggregated $12,112,834, of which $13,157,618 related to appreciated securities and $1,044,784 related to depreciated securities. The aggregate cost of investments at April 30, 2004 for Federal income tax purposes was $299,587,166. 4. Stock Transactions: The Fund is authorized to issue 200,000,000 shares of stock, including Preferred Stock, par value $.10 per share, all of which were initially classified as Common Stock. The Board of Directors is authorized, however, to reclassify any unissued shares of stock without approval of holders of Common Stock. Preferred Stock Auction Market Preferred Stock are redeemable shares of Preferred Stock of the Fund, with a par value of $.10 per share and a liquidation preference of $25,000 per share plus accrued and unpaid dividends, that entitle their holders to receive cash dividends at an annual rate that may vary for the successive dividend periods. The yields in effect at April 30, 2004 were as follows: Series A, 1.02% and Series B, .97%. The Fund pays commissions to certain broker-dealers at the end of each auction at an annual rate ranging from .25% to .375%, calculated on the proceeds of each auction. For the year ended April 30, 2004, Merrill Lynch, Pierce, Fenner & Smith Incorporated, an affiliate of FAM, earned $224,216 as commissions. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Notes to Financial Statements (concluded) 5. Distributions to Shareholders: The Fund paid a tax-exempt income dividend to holders of Common Stock in the amount of $.076000 per share on May 27, 2004, to shareholders of record on May 14, 2004. The tax character of distributions paid during the fiscal years ended April 30, 2004 and April 30, 2003 was as follows: 4/30/2004 4/30/2003 Distributions paid from: Tax-exempt income $ 12,600,607 $ 12,516,715 --------------- --------------- Total distributions $ 12,600,607 $ 12,516,715 =============== =============== As of April 30, 2004, the components of accumulated losses on a tax basis were as follows: Undistributed tax-exempt income--net $ 3,480,242 Undistributed long-term capital gains--net -- --------------- Total undistributed earnings--net 3,480,242 Capital loss carryforward (20,483,740)* Unrealized gains--net 7,243,883** --------------- Total accumulated losses--net $ (9,759,615) =============== *On April 30, 2004, the Fund had a net capital loss carryforward of $20,483,740 of which $10,899,827 expires in 2008 and $9,583,913 expires in 2009. This amount will be available to offset like amounts of any future taxable gains. **The difference between book-basis and tax-basis net unrealized gains is attributable primarily to the tax deferral of losses on straddles, the difference between book and tax amortization methods for premiums and discounts on fixed income securities and the deferral of post-October capital losses for tax purposes. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Independent Registered Public Accounting Firm To the Shareholders and Board of Directors of MuniHoldings Insured Fund, Inc.: We have audited the accompanying statement of net assets of MuniHoldings Insured Fund, Inc., including the schedule of investments, as of April 30, 2004, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and financial highlights for each of the periods indicated therein. 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. 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. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights. Our procedures included confirmation of securities owned as of April 30, 2004, by correspondence with the custodian and others. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. 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 MuniHoldings Insured Fund, Inc. at April 30, 2004, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended and the financial highlights for each of the indicated periods in conformity with U.S. generally accepted accounting principles. (Ernst & Young LLP) MetroPark, New Jersey June 9, 2004 Important Tax Information (unaudited) All of the net investment income distributions paid by MuniHoldings Insured Fund, Inc. during its taxable year ended April 30, 2004 qualify as tax-exempt interest dividends for Federal income tax purposes. Please retain this information for your records. Dividend Policy The Fund's dividend policy is to distribute all or a portion of its net investment income to its shareholders on a monthly basis. In order to provide shareholders with a more stable level of dividend distributions, the Fund may at times pay out less than the entire amount of net investment income earned in any particular month and may at times in any particular month pay out such accumulated but undistributed income in addition to net investment income earned in that month. As a result, the dividends paid by the Fund for any particular month may be more or less than the amount of net investment income earned by the Fund during such month. The Fund's current accumulated but undistributed net investment income, if any, is disclosed in the Statement of Net Assets, which comprises part of the financial information included in this report. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Automatic Dividend Reinvestment Plan (unaudited) The following description of the Fund's Automatic Dividend Reinvestment Plan (the "Plan") is sent to you annually as required by Federal securities laws. Pursuant to the Fund's Plan, unless a holder of Common Stock otherwise elects, all dividend and capital gains distributions will be automatically reinvested by The Bank of New York (the "Plan Agent"), as agent for shareholders in administering the Plan, in additional shares of Common Stock of the Fund. Holders of Common Stock who elect not to participate in the Plan will receive all distributions in cash paid by check mailed directly to the shareholder of record (or, if the shares are held in street or other nominee name then to such nominee) by The Bank of New York, as dividend paying agent. Such participants may elect not to participate in the Plan and to receive all distributions of dividends and capital gains in cash by sending written instructions to The Bank of New York, as dividend paying agent, at the address set forth below. Participation in the Plan is completely voluntary and may be terminated or resumed at any time without penalty by written notice if received by the Plan Agent not less than ten days prior to any dividend record date; otherwise such termination will be effective with respect to any subsequently declared dividend or distribution. Whenever the Fund declares an income dividend or capital gains distribution (collectively referred to as "dividends") payable either in shares or in cash, non-participants in the Plan will receive cash and participants in the Plan will receive the equivalent in shares of Common Stock. The shares will be acquired by the Plan Agent for the participant's account, depending upon the circumstances described below, either (i) through receipt of additional unissued but authorized shares of Common Stock from the Fund ("newly issued shares") or (ii) by purchase of outstanding shares of Common Stock on the open market ("open-market purchases") on the New York Stock Exchange or elsewhere. If on the payment date for the dividend, the net asset value per share of the Common Stock is equal to or less than the market price per share of the Common Stock plus estimated brokerage commissions (such conditions being referred to herein as "market premium"), the Plan Agent will invest the dividend amount in newly issued shares on behalf of the participant. The number of newly issued shares of Common Stock to be credited to the participant's account will be determined by dividing the dollar amount of the dividend by the net asset value per share on the date the shares are issued, provided that the maximum discount from the then current market price per share on the date of issuance may not exceed 5%. If on the dividend payment date the net asset value per share is greater than the market value (such condition being referred to herein as "market discount"), the Plan Agent will invest the dividend amount in shares acquired on behalf of the participant in open-market purchases. In the event of a market discount on the dividend payment date, the Plan Agent will have until the last business day before the next date on which the shares trade on an "ex-dividend" basis or in no event more than 30 days after the dividend payment date (the "last purchase date") to invest the dividend amount in shares acquired in open-market purchases. It is contemplated that the Fund will pay monthly income dividends. Therefore, the period during which open- market purchases can be made will exist only from the payment date on the dividend through the date before the next "ex-dividend" date, which typically will be approximately ten days. If, before the Plan Agent has completed its open-market purchases, the market price of a share of Common Stock exceeds the net asset value per share, the average per share purchase price paid by the Plan Agent may exceed the net asset value of the Fund's shares, resulting in the acquisitions of fewer shares than if the dividend had been paid in newly issued shares on the dividend payment date. Because of the foregoing difficulty with respect to open-market purchases, the Plan provides that if the Plan Agent is unable to invest the full dividend amount in open-market purchases during the purchase period or if the market discount shifts to a market premium during the purchase period, the Plan Agent will cease making open-market purchases and will invest the uninvested portion of the dividend amount in newly issued shares at the close of business on the last purchase date determined by dividing the uninvested portion of the dividend by the net asset value per share. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Automatic Dividend Reinvestment Plan (unaudited)(concluded) The Plan Agent maintains all shareholders' accounts in the Plan and furnishes written confirmation of all transactions in the account, including information needed by shareholders for tax records. Shares in the account of each Plan participant will be held by the Plan Agent in non-certificated form in the name of the participant, and each shareholder's proxy will include those shares purchased or received pursuant to the Plan. The Plan Agent will forward all proxy solicitation materials to participants and vote proxies for shares held pursuant to the Plan in accordance with the instructions of the participants. In the case of shareholders such as banks, brokers or nominees which hold shares of others who are the beneficial owners, the Plan Agent will administer the Plan on the basis of the number of shares certified from time to time by the record shareholders as representing the total amount registered in the record shareholder's name and held for the account of beneficial owners who are to participate in the Plan. There will be no brokerage charges with respect to shares issued directly by the Fund as a result of dividends or capital gains distributions payable either in shares or in cash. However, each participant will pay a pro rata share of brokerage commissions incurred with respect to the Plan Agent's open-market purchases in connection with the reinvestment of dividends. The automatic reinvestment of dividends and distributions will not relieve participants of any Federal, state or local income tax that may be payable (or required to be withheld) on such dividends. Shareholders participating in the Plan may receive benefits not available to shareholders not participating in the Plan. If the market price plus commissions of the Fund's shares is above the net asset value, participants in the Plan will receive shares of the Fund at less than they could otherwise purchase them and will have shares with a cash value greater than the value of any cash distribution they would have received on their shares. If the market price plus commissions is below the net asset value, participants will receive distributions in shares with a net asset value greater than the value of any cash distribution they would have received on their shares. However, there may be insufficient shares available in the market to make distributions in shares at prices below the net asset value. Also, since the Fund does not redeem shares, the price on resale may be more or less than the net asset value. The value of shares acquired pursuant to the Plan will generally be excluded from gross income to the extent that the cash amount reinvested would be excluded from gross income. If, when the Fund's shares are trading at a premium over net asset value, the Fund issues shares pursuant to the Plan that have a greater fair market value than the amount of cash reinvested, it is possible that all or a portion of such discount (which may not exceed 5% of the fair market value of the Fund's shares) could be viewed as a taxable distribution. If the discount is viewed as a taxable distribution, it is also possible that the taxable character of this discount would be allocable to all the shareholders, including shareholders who do not participate in the Plan. Thus, shareholders who do not participate in the Plan might be required to report as ordinary income a portion of their distributions equal to their allocable share of the discount. Experience under the Plan may indicate that changes are desirable. Accordingly, the Fund reserves the right to amend or terminate the Plan. There is no direct service charge to participants in the Plan; however, the Fund reserves the right to amend the Plan to include a service charge payable by the participants. All correspondence concerning the Plan should be directed to the Plan Agent at The Bank of New York, Church Street Station, P.O. Box 11258, New York , NY 10286-1258, Telephone: 800-432-8224. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Officers and Directors (unaudited) Number of Portfolios in Other Public Position(s) Length of Fund Complex Directorships Held with Time Overseen by Held by Name, Address & Age Fund Served Principal Occupation(s) During Past 5 Years Director Director Interested Director Terry K. Glenn* President 1999 to President of Merrill Lynch Investment 122 Funds None P.O. Box 9011 and present Managers, L.P. ("MLIM")/Fund Asset 161 Portfolios Princeton, Director and Management, L.P. ("FAM")--Advised Funds NJ 08543-9011 1983 to since 1999; Chairman (Americas Region) Age: 63 present of MLIM from 2000 to 2002; Executive Vice President of MLIM and FAM (which terms as used herein include their corporate predecessors) from 1983 to 2002; President of FAM Distributors, Inc. ("FAMD") from 1986 to 2002 and Director thereof from 1991 to 2002; Executive Vice President and Director of Princeton Services, Inc. ("Princeton Services") from 1993 to 2002; President of Princeton Administrators, L.P. from 1989 to 2002; Director of Financial Data Services, Inc. since 1985. * Mr. Glenn is a director, trustee or member of an advisory board of certain other investment companies for which MLIM or FAM acts as investment adviser. Mr. Glenn is an "interested person," as described in the Investment Company Act, of the Fund based on his former positions with MLIM, FAM, FAMD, Princeton Services and Princeton Administrators, L.P. The Director's term is unlimited. Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. As Fund President, Mr. Glenn serves at the pleasure of the Board of Directors. Independent Directors* Ronald W. Forbes Director 1998 to Professor Emeritus of Finance, School of 49 Funds None P.O. Box 9095 present Business, State University of New York at 49 Portfolios Princeton, Albany since 2000 and Professor thereof NJ 08543-9095 from 1989 to 2000; International Consultant Age: 63 at the Urban Institute, Washington, D.C. from 1995 to 1999. Cynthia A. Montgomery Director 1998 to Professor of Harvard Business School since 49 Funds Newell P.O. Box 9095 present 1989; Associate Professor of J.L. Kellogg 49 Portfolios Rubbermaid, Inc. Princeton, Graduate School of Management, Northwestern NJ 08543-9095 University from 1985 to 1989; Associate Age: 51 Professor of the Graduate School of Business Administration, University of Michigan from 1979 to 1985. Kevin A. Ryan Director 1998 to Founder and Director of the Boston 49 Funds None P.O. Box 9095 present University Center for the Advancement 49 Portfolios Princeton, of Ethics and Character from 1989 to NJ 08543-9095 1999 and Director Emeritus thereof since Age: 71 1999; Professor of Education of Boston University from 1982 to 1999 and Professor Emeritus thereof since 1999; formerly on the faculties of The University of Chicago, Stanford University and Ohio State University. Roscoe S. Suddarth Director 2000 to President of Middle East Institute from 49 Funds None P.O. Box 9095 present 1995 to 2001; Foreign Service Officer of 49 Portfolios Princeton, United States Foreign Service from 1961 to NJ 08543-9095 1995 and Career Minister thereof from 1989 Age: 68 to 1995; Deputy Inspector General of U.S. Department of State from 1991 to 1994; U.S. Ambassador to the Hashemite Kingdom of Jordan from 1987 to 1990. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Officers and Directors (unaudited)(concluded) Number of Portfolios in Other Public Position(s) Length of Fund Complex Directorships Held with Time Overseen by Held by Name, Address & Age Fund Served Principal Occupation(s) During Past 5 Years Director Director Independent Directors* (concluded) Richard R. West Director 1998 to Dean of New York University, Leonard N. 49 Funds Bowne & Co., P.O. Box 9095 present Stern School of Business Administration 49 Portfolios Inc.; Vornado Princeton, from 1984 to 1993, Professor of Finance Operating NJ 08543-9095 thereof since 1984 and currently Dean Company; Age: 66 Emeritus. Vornado Realty Trust and Alexander's, Inc. Edward D. Zinbarg Director 2000 to Self-employed financial consultant since 49 Funds None P.O. Box 9095 present 1994; Executive Vice President of the 49 Portfolios Princeton, Prudential Insurance Company of America NJ 08543-9095 from 1988 to 1994; Former Director of Age: 69 Prudential Reinsurance Company and former Trustee of The Prudential Foundation. * The Director's term is unlimited. Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. Position(s) Length of Held with Time Name, Address & Age Fund Served* Principal Occupation(s) During Past 5 Years Fund Officers Donald C. Burke Vice 1998 to First Vice President of MLIM and FAM since 1997 and Treasurer thereof P.O. Box 9011 President present since 1999; Senior Vice President and Treasurer of Princeton Services Princeton, and and since 1999; Vice President of FAMD since 1999; Director of MLIM Taxation NJ 08543-9011 Treasurer 1999 to since 1990. Age: 43 present Kenneth A. Jacob Senior 2002 to Managing Director of MLIM since 2000; Director (Tax-Exempt Fund Management) P.O. Box 9011 Vice present of MLIM from 1997 to 2000. Princeton, President NJ 08543-9011 Age: 53 John M. Loffredo Senior 2002 to Managing Director of MLIM since 2000; Director (Tax-Exempt Fund Management) P.O. Box 9011 Vice present of MLIM from 1998 to 2000. Princeton, President NJ 08543-9011 Age: 40 Robert A. DiMella Vice 1999 to Director (Tax-Exempt Fund Management) of MLIM since 2002; Vice President of P.O. Box 9011 President present MLIM from 1996 to 2001. Princeton, NJ 08543-9011 Age: 37 Phillip S. Gillespie Secretary 2000 to First Vice President of MLIM since 2001; Director (Legal Advisory) from 2000 P.O. Box 9011 present to 2001; Vice President from 1999 to 2000; Attorney associated with MLIM Princeton, since 1998. NJ 08543-9011 Age: 40 * Officers of the Fund serve at the pleasure of the Board of Directors. Further information about the Fund's Officers and Directors is available in the Fund's Statement of Additional Information, which can be obtained without charge by calling 1-800-MER-FUND. Custodian The Bank of New York 100 Church Street New York, NY 10286 Transfer Agents Common Stock: The Bank of New York 101 Barclay Street New York, NY 10286 Preferred Stock: The Bank of New York 101 Barclay Street-7 West New York, NY 10286 NYSE Symbol MUS Charles C. Reilly, Director of MuniHoldings Insured Fund Inc., has recently retired. The Fund's Board of Directors wishes Mr. Reilly well in his retirement. MUNIHOLDINGS INSURED FUND, INC., APRIL 30, 2004 Item 2 - Code of Ethics - The registrant has adopted a code of ethics, as of the end of the period covered by this report, that applies to the registrant's principal executive officer, principal financial officer and principal accounting officer, or persons performing similar functions. A copy of the code of ethics is available without charge upon request by calling toll-free 1-800-MER-FUND (1-800-637-3863). Item 3 - Audit Committee Financial Expert - The registrant's board of directors has determined that (i) the registrant has the following audit committee financial experts serving on its audit committee and (ii) each audit committee financial expert is independent: (1) Ronald W. Forbes, (2) Richard R. West, and (3) Edward D. Zinbarg. Item 4 - Principal Accountant Fees and Services (a) Audit Fees - Fiscal Year Ending April 30, 2004 - $31,500 Fiscal Year Ending April 30, 2003 - $30,550 (b) Audit-Related Fees - Fiscal Year Ending April 30, 2004 - $3,000 Fiscal Year Ending April 30, 2003 - $3,000 The nature of the services include assurance and related services reasonably related to the performance of the audit of financial statements not included in Audit Fees. (c) Tax Fees - Fiscal Year Ending April 30, 2004 - $5,200 Fiscal Year Ending April 30, 2003 - $5,000 The nature of the services include tax compliance, tax advice and tax planning. (d) All Other Fees - Fiscal Year Ending April 30, 2004 - $0 Fiscal Year Ending April 30, 2003 - $0 (e)(1) The registrant's audit committee (the "Committee") has adopted policies and procedures with regard to the pre-approval of services. Audit, audit-related and tax compliance services provided to the registrant on an annual basis require specific pre-approval by the Committee. The Committee also must approve other non-audit services provided to the registrant and those non-audit services provided to the registrant's affiliated service providers that relate directly to the operations and the financial reporting of the registrant. Certain of these non-audit services that the Committee believes are a) consistent with the SEC's auditor independence rules and b) routine and recurring services that will not impair the independence of the independent accountants may be approved by the Committee without consideration on a specific case-by-case basis ("general pre-approval"). However, such services will only be deemed pre-approved provided that any individual project does not exceed $5,000 attributable to the registrant or $50,000 for the project as a whole. Any proposed services exceeding the pre- approved cost levels will require specific pre-approval by the Committee, as will any other services not subject to general pre- approval (e.g., unanticipated but permissible services). The Committee is informed of each service approved subject to general pre-approval at the next regularly scheduled in-person board meeting. (e)(2) 0% (f) Not Applicable (g) Fiscal Year Ending April 30, 2004 - $8,200 Fiscal Year Ending April 30, 2003 - $108,000 (h) The registrant's audit committee has considered and determined that the provision of non-audit services that were rendered to the registrant's 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. Regulation S-X Rule 2-01(c)(7)(ii) - $541,640, 0% Item 5 - Audit Committee of Listed Registrants - The following individuals are members of the registrant's 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)): Ronald W. Forbes Cynthia A. Montgomery Charles C. Reilly (retired as of December 31, 2003) Kevin A. Ryan Roscoe S. Suddarth Richard R. West Edward D. Zinbarg Item 6 - Schedule of Investments - Not Applicable Item 7 - Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies - Proxy Voting Policies and Procedures Each Fund's Board of Directors/Trustees has delegated to Merrill Lynch Investment Managers, L.P. and/or Fund Asset Management, L.P. (the "Investment Adviser") authority to vote all proxies relating to the Fund's portfolio securities. The Investment Adviser has adopted policies and procedures ("Proxy Voting Procedures") with respect to the voting of proxies related to the portfolio securities held in the account of one or more of its clients, including a Fund. Pursuant to these Proxy Voting Procedures, the Investment Adviser's primary objective when voting proxies is to make proxy voting decisions solely in the best interests of each Fund and its shareholders, and to act in a manner that the Investment Adviser believes is most likely to enhance the economic value of the securities held by the Fund. The Proxy Voting Procedures are designed to ensure that that the Investment Adviser considers the interests of its clients, including the Funds, and not the interests of the Investment Adviser, when voting proxies and that real (or perceived) material conflicts that may arise between the Investment Adviser's interest and those of the Investment Adviser's clients are properly addressed and resolved. In order to implement the Proxy Voting Procedures, the Investment Adviser has formed a Proxy Voting Committee (the "Committee"). The Committee is comprised of the Investment Adviser's Chief Investment Officer (the "CIO"), one or more other senior investment professionals appointed by the CIO, portfolio managers and investment analysts appointed by the CIO and any other personnel the CIO deems appropriate. The Committee will also include two non- voting representatives from the Investment Adviser's Legal department appointed by the Investment Adviser's General Counsel. The Committee's membership shall be limited to full-time employees of the Investment Adviser. No person with any investment banking, trading, retail brokerage or research responsibilities for the Investment Adviser's affiliates may serve as a member of the Committee or participate in its decision making (except to the extent such person is asked by the Committee to present information to the Committee, on the same basis as other interested knowledgeable parties not affiliated with the Investment Adviser might be asked to do so). The Committee determines how to vote the proxies of all clients, including a Fund, that have delegated proxy voting authority to the Investment Adviser and seeks to ensure that all votes are consistent with the best interests of those clients and are free from unwarranted and inappropriate influences. The Committee establishes general proxy voting policies for the Investment Adviser and is responsible for determining how those policies are applied to specific proxy votes, in light of each issuer's unique structure, management, strategic options and, in certain circumstances, probable economic and other anticipated consequences of alternate actions. In so doing, the Committee may determine to vote a particular proxy in a manner contrary to its generally stated policies. In addition, the Committee will be responsible for ensuring that all reporting and recordkeeping requirements related to proxy voting are fulfilled. The Committee may determine that the subject matter of a recurring proxy issue is not suitable for general voting policies and requires a case-by-case determination. In such cases, the Committee may elect not to adopt a specific voting policy applicable to that issue. The Investment Adviser believes that certain proxy voting issues require investment analysis - such as approval of mergers and other significant corporate transactions - akin to investment decisions, and are, therefore, not suitable for general guidelines. The Committee may elect to adopt a common position for the Investment Adviser on certain proxy votes that are akin to investment decisions, or determine to permit the portfolio manager to make individual decisions on how best to maximize economic value for a Fund (similar to normal buy/sell investment decisions made by such portfolio managers). While it is expected that the Investment Adviser will generally seek to vote proxies over which the Investment Adviser exercises voting authority in a uniform manner for all the Investment Adviser's clients, the Committee, in conjunction with a Fund's portfolio manager, may determine that the Fund's specific circumstances require that its proxies be voted differently. To assist the Investment Adviser in voting proxies, the Committee has retained Institutional Shareholder Services ("ISS"). ISS is an independent adviser that specializes in providing a variety of fiduciary-level proxy-related services to institutional investment managers, plan sponsors, custodians, consultants, and other institutional investors. The services provided to the Investment Adviser by ISS include in-depth research, voting recommendations (although the Investment Adviser is not obligated to follow such recommendations), vote execution, and recordkeeping. ISS will also assist the Fund in fulfilling its reporting and recordkeeping obligations under the Investment Company Act. The Investment Adviser's Proxy Voting Procedures also address special circumstances that can arise in connection with proxy voting. For instance, under the Proxy Voting Procedures, the Investment Adviser generally will not seek to vote proxies related to portfolio securities that are on loan, although it may do so under certain circumstances. In addition, the Investment Adviser will vote proxies related to securities of foreign issuers only on a best efforts basis and may elect not to vote at all in certain countries where the Committee determines that the costs associated with voting generally outweigh the benefits. The Committee may at any time override these general policies if it determines that such action is in the best interests of a Fund. From time to time, the Investment Adviser may be required to vote proxies in respect of an issuer where an affiliate of the Investment Adviser (each, an "Affiliate"), or a money management or other client of the Investment Adviser (each, a "Client") is involved. The Proxy Voting Procedures and the Investment Adviser's adherence to those procedures are designed to address such conflicts of interest. The Committee intends to strictly adhere to the Proxy Voting Procedures in all proxy matters, including matters involving Affiliates and Clients. If, however, an issue representing a non- routine matter that is material to an Affiliate or a widely known Client is involved such that the Committee does not reasonably believe it is able to follow its guidelines (or if the particular proxy matter is not addressed by the guidelines) and vote impartially, the Committee may, in its discretion for the purposes of ensuring that an independent determination is reached, retain an independent fiduciary to advise the Committee on how to vote or to cast votes on behalf of the Investment Adviser's clients. In the event that the Committee determines not to retain an independent fiduciary, or it does not follow the advice of such an independent fiduciary, the powers of the Committee shall pass to a subcommittee, appointed by the CIO (with advice from the Secretary of the Committee), consisting solely of Committee members selected by the CIO. The CIO shall appoint to the subcommittee, where appropriate, only persons whose job responsibilities do not include contact with the Client and whose job evaluations would not be affected by the Investment Adviser's relationship with the Client (or failure to retain such relationship). The subcommittee shall determine whether and how to vote all proxies on behalf of the Investment Adviser's clients or, if the proxy matter is, in their judgment, akin to an investment decision, to defer to the applicable portfolio managers, provided that, if the subcommittee determines to alter the Investment Adviser's normal voting guidelines or, on matters where the Investment Adviser's policy is case-by-case, does not follow the voting recommendation of any proxy voting service or other independent fiduciary that may be retained to provide research or advice to the Investment Adviser on that matter, no proxies relating to the Client may be voted unless the Secretary, or in the Secretary's absence, the Assistant Secretary of the Committee concurs that the subcommittee's determination is consistent with the Investment Adviser's fiduciary duties In addition to the general principles outlined above, the Investment Adviser has adopted voting guidelines with respect to certain recurring proxy issues that are not expected to involve unusual circumstances. These policies are guidelines only, and the Investment Adviser may elect to vote differently from the recommendation set forth in a voting guideline if the Committee determines that it is in a Fund's best interest to do so. In addition, the guidelines may be reviewed at any time upon the request of a Committee member and may be amended or deleted upon the vote of a majority of Committee members present at a Committee meeting at which there is a quorum. The Investment Adviser has adopted specific voting guidelines with respect to the following proxy issues: * Proposals related to the composition of the Board of Directors of issuers other than investment companies. As a general matter, the Committee believes that a company's Board of Directors (rather than shareholders) is most likely to have access to important, nonpublic information regarding a company's business and prospects, and is therefore best-positioned to set corporate policy and oversee management. The Committee, therefore, believes that the foundation of good corporate governance is the election of qualified, independent corporate directors who are likely to diligently represent the interests of shareholders and oversee management of the corporation in a manner that will seek to maximize shareholder value over time. In individual cases, the Committee may look at a nominee's history of representing shareholder interests as a director of other companies or other factors, to the extent the Committee deems relevant. * Proposals related to the selection of an issuer's independent auditors. As a general matter, the Committee believes that corporate auditors have a responsibility to represent the interests of shareholders and provide an independent view on the propriety of financial reporting decisions of corporate management. While the Committee will generally defer to a corporation's choice of auditor, in individual cases, the Committee may look at an auditors' history of representing shareholder interests as auditor of other companies, to the extent the Committee deems relevant. * Proposals related to management compensation and employee benefits. As a general matter, the Committee favors disclosure of an issuer's compensation and benefit policies and opposes excessive compensation, but believes that compensation matters are normally best determined by an issuer's board of directors, rather than shareholders. Proposals to "micro-manage" an issuer's compensation practices or to set arbitrary restrictions on compensation or benefits will, therefore, generally not be supported. * Proposals related to requests, principally from management, for approval of amendments that would alter an issuer's capital structure. As a general matter, the Committee will support requests that enhance the rights of common shareholders and oppose requests that appear to be unreasonably dilutive. * Proposals related to requests for approval of amendments to an issuer's charter or by-laws. As a general matter, the Committee opposes poison pill provisions. * Routine proposals related to requests regarding the formalities of corporate meetings. * Proposals related to proxy issues associated solely with holdings of investment company shares. As with other types of companies, the Committee believes that a fund's Board of Directors (rather than its shareholders) is best-positioned to set fund policy and oversee management. However, the Committee opposes granting Boards of Directors authority over certain matters, such as changes to a fund's investment objective, that the Investment Company Act envisions will be approved directly by shareholders. * Proposals related to limiting corporate conduct in some manner that relates to the shareholder's environmental or social concerns. The Committee generally believes that annual shareholder meetings are inappropriate forums for discussion of larger social issues, and opposes shareholder resolutions "micromanaging" corporate conduct or requesting release of information that would not help a shareholder evaluate an investment in the corporation as an economic matter. While the Committee is generally supportive of proposals to require corporate disclosure of matters that seem relevant and material to the economic interests of shareholders, the Committee is generally not supportive of proposals to require disclosure of corporate matters for other purposes. Item 8 - Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers - Not Applicable Item 9 - Submission of Matters to a Vote of Security Holders - Not Applicable Item 10 - Controls and Procedures 10(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. 10(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the second fiscal half- year 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. Item 11 - Exhibits attached hereto 11(a)(1) - Code of Ethics - See Item 2 11(a)(2) - Certifications - Attached hereto 11(a)(3) - Not Applicable 11(b) - Certifications - Attached hereto 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. MuniHoldings Insured Fund, Inc. By: _/s/ Terry K. Glenn_______ Terry K. Glenn, President of MuniHoldings Insured Fund, Inc. Date: June 18, 2004 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: _/s/ Terry K. Glenn________ Terry K. Glenn, President of MuniHoldings Insured Fund, Inc. Date: June 18, 2004 By: _/s/ Donald C. Burke________ Donald C. Burke, Chief Financial Officer of MuniHoldings Insured Fund, Inc. Date: June 18, 2004