1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Mark One) [ X ] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the fiscal year ended DECEMBER 31, 1997 or [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the transition period from ____________ to ___________ Commission File Number 1-3305 (Merck & Co., Inc.) A. Full title of the plan and the address of the plan, if different from that of the issuer named below: ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN 725 CHESTERBROOK BOULEVARD WAYNE, PA 19087-5677 B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: MERCK & CO., INC. ONE MERCK DRIVE WHITEHOUSE STATION, NJ 08889-0100 2 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN INDEX TO FINANCIAL STATEMENTS AND ADDITIONAL INFORMATION DECEMBER 31, 1997 AND 1996 Page(s) Report of Independent Accountants 1 Financial Statements: Statement of Net Assets Available for Benefits at December 31, 1997 and 1996 2 Statement of Changes in Net Assets Available for Benefits for the Years Ended December 31, 1997 and 1996 3 Notes to Financial Statements 4 - 12 Additional Information*: Schedule I: Schedule of Assets Held for Investment Purposes at December 31, 1997 13 Schedule II: Schedule of Reportable Transactions for the Year Ended December 31, 1997 14 *The additional information included is presented for purposes of additional analysis and is not a required part of the basic financial statements but is required by the Employee Retirement Income Security Act of 1974 ("ERISA"). 3 REPORT OF INDEPENDENT ACCOUNTANTS To the Participants and Plan Administrative Committee of the Astra Merck Inc. Employee Savings and Security Plan In our opinion, the accompanying statements of net assets available for benefits and the related statements of changes in net assets available for benefits present fairly, in all material respects, the net assets available for benefits of the Astra Merck Inc. Employee Savings and Security Plan (the "Plan") at December 31, 1997 and 1996, and the changes in net assets available for benefits for the years then ended, in conformity with generally accepted accounting principles. These financial statements are the responsibility of the Plan's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with generally accepted auditing standards which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit 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, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for the opinion expressed above. Our audit was made for the purpose of forming an opinion on the basic financial statements taken as a whole. The additional information included in Schedules I and II is presented for purposes of additional analysis and is not a required part of the basic financial statements but is additional information required by ERISA. Such information has been subjected to the auditing procedures applied in the audit of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole. PRICE WATERHOUSE LLP Philadelphia, PA May 22, 1998, except as to Note 7, which is as of June 19, 1998. 4 [ASTRA MERCK LOGO] - ------------------------------------------------------------------------------- ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS DECEMBER 31, 1997 AND 1996 December 31, 1997 December 31, 1996 ----------------- ----------------- ASSETS Investments at fair value: Common Stock $44,555,355 $32,520,766 Registered Investment Companies 39,238,643 24,064,937 Participant Loans 1,847,103 1,634,374 85,641,101 58,220,077 Receivables: Participant contributions 708,512 591,516 Employer contributions 274,236 233,055 Accrued interest and dividends 76,905 27,075 1,059,653 851,646 NET ASSETS AVAILABLE FOR BENEFITS $86,700,754 $59,071,723 The accompanying notes are an integral part of these financial statements. Page 2 5 [ASTRA MERCK LOGO] - ------------------------------------------------------------------------------- ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS FOR THE YEARS ENDED DECEMBER 31, 1997 AND 1996 For the Year Ended ------------------------------------- December 31, 1997 December 31, 1996 ----------------- ----------------- ADDITIONS TO NET ASSETS ATTRIBUTED TO: Investment income: Net appreciation in fair value of investments $14,929,643 $ 6,301,384 Dividends and interest 3,142,360 2,317,417 Interest on loans 142,944 121,709 Total Investment Income 18,214,947 8,740,510 Contributions to the Plan: Participants' 8,386,499 6,226,794 Employer's 3,191,807 2,071,398 Rollovers from other qualified plans 1,707,316 1,389,500 Total Contributions 13,285,622 9,687,692 Total Additions 31,500,569 18,428,202 DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO: Benefits paid and distributions to participants (3,871,538) (792,842) Net Increase 27,629,031 17,635,360 Net assets available for benefits Beginning of year 59,071,723 41,436,363 End of year $86,700,754 $59,071,723 The accompanying notes are an integral part of these financial statements. Page 3 6 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 1. DESCRIPTION OF THE PLAN The following description of the Astra Merck Inc. (the "Company") Employee Savings and Security Plan (the "Plan") provides only general information. Participants should refer to the Plan document for complete information. The Plan, established January 1, 1995, was designed to provide employees a systematic means of saving and investing for the future. Prior to July 1, 1996, regular full-time, part-time, and temporary employees of the Company, as defined by the Plan, who had completed at least one year of employment were eligible to participate in the Plan on the next enrollment date (the first day of each January and each July). Effective July 1, 1996, the Company amended the Plan so regular full-time and part-time employees of the Company, as defined by the Plan, are eligible to participate in the Plan as of the first day of the month following their date of hire. The Plan is administered by the Plan Administrative Committee. All costs of administering the Plan are borne by the Company. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 ("ERISA"). Contributions. Participants may contribute from 2% to 15% of their base pay and can designate contributions in 1% increments as pre-tax, after-tax or a combination of both. Prior to July 1, 1996, the Company matched 50% of employee contributions up to 5% of base pay per pay period. Effective July 1, 1996, the Plan was amended to state that the Company will match 66 2/3% of employee contributions up to 6% of base pay per pay period. Company matching contributions are invested in the same investments that participants designate for their own contributions. Both employee and employer contributions to the Plan are limited to maximum amounts established under the Internal Revenue Code. In addition, participants may transfer assets that are held for their benefit by qualified benefit plans of former employers (rollover contributions) into the Plan. Investment Options. Participants direct the investment of their contributions in 1% increments of the payroll deduction into any of the following investment options, including Merck & Co., Inc. ("Merck") Common Stock: MERCK COMMON STOCK This portfolio consists of shares of Merck Common Stock. FIDELITY MAGELLAN FUND The Magellan Fund is a registered investment company which invests primarily in common stock and securities convertible to common stock issued by companies operating in the U.S. and/or abroad as well as foreign companies. The fund seeks investment growth by making a profit on invested capital over the long term. Page 4 7 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 FIDELITY EQUITY-INCOME FUND The Equity-Income Fund is a registered investment company which invests in income-producing equity securities and seeks a dividend yield that exceeds the composite yield of the S&P 500 Index; at the same time, it considers the potential for capital growth. FIDELITY GROWTH COMPANY FUND The Growth Company Fund is a registered investment company which seeks capital appreciation mainly through investment in common stocks and securities convertible into common stocks with an emphasis on capital gains rather than on dividend income. FIDELITY GROWTH & INCOME PORTFOLIO The Growth & Income Portfolio is a registered investment company which seeks a combination of capital growth and current income consistent with reasonable investment risk. It seeks securities of companies with potential for earnings growth while paying current dividends. FIDELITY INTERMEDIATE BOND FUND The Intermediate Bond Fund is a registered investment company which invests in domestic and foreign investment-grade securities with intermediate maturities. The dollar-weighted average maturity of its obligations ranges between three and ten years. FIDELITY RETIREMENT GROWTH FUND The Retirement Growth Fund is a registered investment company which seeks capital appreciation by investing primarily in common stocks issued by companies operating in the U.S. and/or abroad. Investments are diversified among a variety of industries and sectors within the market. FIDELITY OTC PORTFOLIO The OTC Portfolio is a registered investment company which seeks capital appreciation through investment in securities that are traded in the over-the-counter ("OTC") securities market. Though this portfolio invests mainly in common stocks, it can also invest in preferred stocks and debt obligations as well as all other securities offered by the OTC market. FIDELITY OVERSEAS FUND The Overseas Fund is a registered investment company which seeks capital appreciation, primarily through investments in foreign securities. Normally, at least 65% of its total assets are invested in securities of companies from at least three countries outside of North America (generally these countries are located in Central and South America, the Far East and Pacific basin, and Western Europe). Page 5 8 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 FIDELITY BALANCED FUND The emphasis of the Balanced Fund, a registered investment company, is income with investments in both stocks and bonds. At least 25% of its total assets will always be invested in fixed-income senior securities to primarily preserve principal. FIDELITY RETIREMENT MONEY MARKET PORTFOLIO The Money Market Portfolio is a registered investment company which invests in high quality, U.S. dollar-denominated money market instruments of U.S. and foreign issuers. Investments include short-term corporate obligations, U.S. government obligations and certificates of deposit. FIDELITY RETIREMENT GOVERNMENT MONEY MARKET PORTFOLIO The Government Money Market Portfolio is a registered investment company which invests in obligations issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities. SPARTAN U.S. EQUITY INDEX PORTFOLIO The U.S. Equity Index Portfolio is a registered investment company which seeks investment results that correspond to the total return performance of United States' publicly traded stocks. Total return performance is the combination of capital changes and income. Many investments made by this portfolio offer the potential for both dividend income and capital appreciation over the long term. During 1997, the name of the fund was changed from the Fidelity U.S. Equity Index Portfolio to the Spartan U.S. Equity Index Portfolio. PARTICIPANT LOAN FUND The Loan Fund is comprised of amounts transferred from other funds and represents the balance of outstanding participant loans. Participants may move funds among investments daily. Vesting. Participants are immediately vested in their contributions, all Company matching contributions, plus actual earnings thereon. Participant Loans. Participants may borrow from their account balances. The minimum loan is $500 and the maximum loan is the lesser of $50,000 less the highest outstanding loan balance, if any, during the one year period prior to the new loan application date, or 50% of the participant's account balance less any current outstanding loan balance. Participant investments are liquidated on a pro rata basis to fund the loan. The interest rate is the rate in effect the month the loan is made and is based on the prime rate of the Morgan Guaranty Trust Company of New York, plus one percent per annum. Activity related to these borrowings is reflected in the Participant Loan Fund. Page 6 9 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 Loan transactions are treated as a transfer to (from) the investment fund from (to) the Participant Loan Fund. Loan terms range from 1-5 years or up to 30 years for the purchase of a primary residence. Maturities range from 1998 to 2028. Interest rates range from 6.5% to 11.5%. Principal and interest is paid ratably through monthly payroll deductions. 2. SUMMARY OF ACCOUNTING POLICIES Basis of Accounting. The financial statements of the Plan have been prepared using the accrual basis of accounting. Investment Valuation and Income Recognition. Shares of Merck Common Stock are valued at its quoted market price. Shares of registered investment companies are valued at quoted market prices which represent the net asset value of shares held by the Plan at year end. Participant loans are valued at cost which approximates fair value. Purchases and sales of investments are recorded on the trade date. Dividend income is recorded on the ex-dividend date. The appreciation in market value of investments is based on the beginning of the year market value or value at the time of purchase during the year and is included in the Statement of Changes in Net Assets Available for Benefits. Investment income is accrued as earned. Payment of Benefits. Benefits are recorded when paid. Use of Estimates. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. 3. INCOME TAX STATUS The Plan received a favorable determination letter from the Internal Revenue Service for the Plan and its amendments through February 1, 1997 dated March 4, 1997. The Plan has been amended subsequent to February 1, 1997. However, the Plan Administrators and the Plan's tax counsel believe that the Plan is currently designed and being operated in compliance with the applicable requirements of the Internal Revenue Code. Therefore, no provision for income taxes has been included in the Plan's financial statements. 4. PARTY-IN-INTEREST TRANSACTIONS On January 1, 1995, in connection with the transfer of assets to the Company on November 1, 1994 to effect a joint venture between Astra AB and Merck, certain employees of Merck became employees of the Company. In accordance with the terms of the agreements governing the formation of the joint venture, account balances of these employees who were participants in Merck's Employee Savings and Security Plan, totaling $18,769,529 were transferred to the Plan, effective January 1, 1995. Page 7 10 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 Certain plan investments are shares of mutual funds managed by an affiliate of Fidelity Investments. Fidelity Investments is the trustee as defined in the Plan, and therefore, these transactions qualify as party-in-interest transactions. 5. PLAN TERMINATION Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. Page 8 11 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 6. FUND INFORMATION STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION Fund Information -------------------------------------------------------------- Merck Fidelity Fidelity Fidelity Fidelity Common Magellan Equity- Growth Growth & Stock* Fund* Income Company Income Fund Fund Portfolio* -------------------------------------------------------------- Assets: Investments at fair value: Common stock $44,555,355 Registered investment companies - $8,236,883 $2,458,094 $4,324,795 $8,885,614 Participant loans - - - - - -------------------------------------------------------------- 44,555,355 8,236,883 2,458,094 4,324,795 8,885,614 Receivables: Participant contributions 226,217 74,843 36,870 70,931 120,171 Employer contributions 85,474 30,453 14,207 27,208 46,369 Accrued interest and dividends 6,127 2,103 461 43,782 1,031 -------------------------------------------------------------- 317,818 107,399 51,538 141,921 167,571 Net assets available for benefits, December 31, 1997 $44,873,173 $8,344,282 $2,509,632 $4,466,716 $9,053,185 ============================================================== Assets: Investments at fair value: Common stock $32,520,766 Registered investment companies - $5,977,849 $1,522,514 $2,925,653 $4,384,329 Participant loans - - - - - -------------------------------------------------------------- 32,520,766 5,977,849 1,522,514 2,925,653 4,384,329 Receivables: Participant contributions 175,619 68,551 24,975 72,047 98,075 Employer contributions 68,496 28,192 9,692 27,437 38,278 Accrued interest and dividends 5,605 1,664 315 5,724 534 -------------------------------------------------------------- Net assets available for benefits, December 31, 1996 $32,770,486 $6,076,256 $1,557,496 $3,030,861 $4,521,216 ============================================================== Fund Information --------------------------------------------------------------- Fidelity Fidelity Fidelity Fidelity Fidelity Intermediate Retirement OTC Overseas Balanced Bond Fund Growth Fund Portfolio Fund Fund --------------------------------------------------------------- Assets: Investments at fair value: Common stock Registered investment companies $1,013,114 $984,186 $2,873,472 $2,507,609 $2,166,328 Participant loans - - - - - --------------------------------------------------------------- 1,013,114 984,186 2,873,472 2,507,609 2,166,328 Receivables: Participant contributions 13,031 16,891 42,727 32,823 22,430 Employer contributions 5,370 6,221 16,351 12,560 9,744 Accrued interest and dividends 6,860 190 524 315 544 --------------------------------------------------------------- 25,261 23,302 59,602 45,698 32,718 Net assets available for benefits, December 31, 1997 $1,038,375 $1,007,488 $2,933,074 $2,553,307 $2,199,046 =============================================================== Assets: Investments at fair value: Common stock Registered investment companies $598,476 $761,397 $1,728,342 $1,577,744 $1,569,462 Participant loans - - - - - -------------------------------------------------------------- 598,476 761,397 1,728,342 1,577,744 1,569,462 Receivables: Participant contributions 12,547 16,570 39,490 27,116 20,782 Employer contributions 5,402 6,579 15,144 10,179 8,943 Accrued interest and dividends 3,182 188 374 204 485 -------------------------------------------------------------- Net assets available for benefits, December 31, 1996 $619,607 $784,734 $1,783,350 $1,615,243 $1,599,672 =============================================================== Fund Information -------------------------------------------------------------- Fidelity Fidelity Spartan Participant Total Retirement Retirement U.S. Loan Fund Money Govt. Equity Market Money Index Portfolio Market Portfolio Portfolio -------------------------------------------------------------- Assets: Investments at fair value: Common stock $44,555,355 Registered investment companies $1,900,102 $1,096,596 $2,791,850 39,238,643 Participant loans - - - $1,847,103 1,847,103 -------------------------------------------------------------- 1,900,102 1,096,596 2,791,850 1,847,103 85,641,101 Receivables: Participant contributions 5,471 4,015 42,092 - 708,512 Employer contributions 2,597 1,659 16,023 - 274,236 Accrued interest and dividends 9,349 5,307 312 - 76,905 -------------------------------------------------------------- 17,417 10,981 58,427 - 1,059,653 Net assets available for benefits, December 31, 1997 $1,917,519 $1,107,577 $2,850,277 $1,847,103 $86,700,754 ============================================================== Assets: Investments at fair value: Common stock $32,520,766 Registered investment companies $912,857 $924,520 $1,181,794 24,064,937 Participant loans - - - $1,634,374 1,634,374 -------------------------------------------------------------- 912,857 924,520 1,181,794 1,634,374 58,220,077 Receivables: Participant contributions 5,943 2,967 26,834 - 591,516 Employer contributions 2,645 1,257 10,811 - 233,055 Accrued interest and dividends 4,207 4,444 149 - 27,075 -------------------------------------------------------------- Net assets available for benefits, December 31, 1996 $925,652 $933,188 $1,219,588 $1,634,374 $59,071,723 ============================================================== *Represents 5% or more of the Plan investments as of December 31, 1997 and 1996. Page 9 12 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 6. FUND INFORMATION (CONTINUED) STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION - - FOR THE YEAR ENDED DECEMBER 31, 1997 Fund Information ---------------------------------------------------------------- Merck Fidelity Fidelity Fidelity Fidelity Common Stock Magellan Equity- Growth Growth & Fund Income Company Income Fund Fund Portfolio ---------------------------------------------------------------- Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments $11,262,595 $1,115,520 $377,158 $199,549 $1,321,314 Dividends and interest 723,335 523,532 129,615 448,290 357,962 Interest on loans 70,606 23,902 4,624 10,086 7,784 ---------------------------------------------------------------- Total investment income 12,056,536 1,662,954 511,397 657,925 1,687,060 ---------------------------------------------------------------- Contributions to the Plan: Participants' 2,628,401 907,281 414,272 876,970 1,414,441 Employer's 986,704 361,863 158,915 326,883 532,933 Rollovers from other qualified plans 453,639 205,688 86,694 152,614 205,227 ---------------------------------------------------------------- Total contributions 4,068,744 1,474,832 659,881 1,356,467 2,152,601 ---------------------------------------------------------------- Total additions 16,125,280 3,137,786 1,171,278 2,014,392 3,839,661 ---------------------------------------------------------------- Deductions from net assets attributed to: Benefits paid and distributions to participants (2,116,100) (456,089) (117,575) (204,802) (189,558) ---------------------------------------------------------------- Transfers among funds: Interfund transfers (1,849,195) (386,171) (88,059) (341,833) 955,206 Loans to participants, principal (304,509) (102,930) (38,807) (76,466) (110,106) Loan principal repayments from participants 247,211 75,430 25,299 44,564 36,766 ---------------------------------------------------------------- Net transfers among funds (1,906,493) (413,671) (101,567) (373,735) 881,866 ---------------------------------------------------------------- Total deductions and net transfers among (4,022,593) (869,760) (219,142) (578,537) 692,308 funds ---------------------------------------------------------------- Net increase 12,102,687 2,268,026 952,136 1,435,855 4,531,969 Net assets available for benefits: Beginning of year 32,770,486 6,076,256 1,557,496 3,030,861 4,521,216 ---------------------------------------------------------------- End of year $44,873,173 $8,344,282 $2,509,632 $4,466,716 $9,053,185 ================================================================ Fund Information ---------------------------------------------------------------- Fidelity Fidelity Fidelity Fidelity Fidelity Intermediate Retirement OTC Overseas Balanced Bond Fund Growth Fund Portfolio Fund Fund ---------------------------------------------------------------- Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments $9,188 ($34,175) ($5,607) $61,354 $137,922 Dividends and interest 56,724 169,908 193,279 124,014 255,553 Interest on loans 1,206 2,265 5,063 2,973 6,428 ------------------------------------------------------------- Total investment income 67,118 137,998 192,735 188,341 399,903 ------------------------------------------------------------- Contributions to the Plan: Participants' 156,820 209,261 512,016 406,581 276,844 Employer's 64,754 77,844 191,837 149,759 117,290 Rollovers from other qualified plans 188,661 15,591 90,251 94,726 29,679 ------------------------------------------------------------- Total contributions 410,235 302,696 794,104 651,066 423,813 ------------------------------------------------------------- Total additions 477,353 440,694 986,839 839,407 823,716 ------------------------------------------------------------- Deductions from net assets attributed to: Benefits paid and distributions to participants (16,115) (15,337) (105,894) (68,172) (55,968) ------------------------------------------------------------- Transfers among funds: Interfund transfers (28,753) (202,142) 289,544 184,259 (158,602) Loans to participants, principal (17,059) (9,606) (45,553) (33,641) (35,685) Loan principal repayments from participants 3,342 9,145 24,788 16,211 25,913 ------------------------------------------------------------- Net transfers among funds (42,470) (202,603) 268,779 166,829 (168,374) ------------------------------------------------------------- Total deductions and net transfers among (58,585) (217,940) 162,885 98,657 (224,342) funds ------------------------------------------------------------- Net increase 418,768 222,754 1,149,724 938,064 599,374 Net assets available for benefits: Beginning of year 619,607 784,734 1,783,350 1,615,243 1,599,672 ---------------------------------------------------------------- End of year $1,038,375 $1,007,488 $2,933,074 $2,553,307 $2,199,046 ============================================================= Fund Information ---------------------------------------------------------------- Fidelity Fidelity Spartan Participant Total Retirement Retirement U.S. Loan Fund Money Govt. Equity Market Money Index Portfolio Market Portfolio Portfolio ---------------------------------------------------------------- Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments $484,825 $14,929,643 Dividends and interest $56,593 $50,939 52,616 3,142,360 Interest on loans 1,560 3,716 2,731 142,944 ----------------------------------- ------------ Total investment income 58,153 54,655 540,172 $18,214,947 ----------------------------------- ------------ Contributions to the Plan: Participants' 79,963 46,943 456,706 8,386,499 Employer's 34,617 18,182 170,226 3,191,807 Rollovers from other qualified plans 16,230 1,026 167,290 1,707,316 ----------------------------------- ------------ Total contributions 130,810 66,151 794,222 13,285,622 ----------------------------------- ------------ Total additions 188,963 120,806 1,334,394 31,500,569 ----------------------------------- ------------ Deductions from net assets attributed to: Benefits paid and distributions to participants (311,379) (126,365) (53,304) ($34,880) (3,871,538) ------------------------------------------------------------ Transfers among funds: Interfund transfers 1,114,739 149,755 361,252 - - Loans to participants, principal (6,612) (2,589) (26,637) 810,200 - Loan principal repayments from participants 6,156 32,782 14,984 (562,591) - ------------------------------------------------------------ Net transfers among funds 1,114,283 179,948 349,599 247,609 - ------------------------------------------------------------ Total deductions and net transfers among 802,904 53,583 296,295 212,729 (3,871,538) funds ------------------------------------------------------------ Net increase 991,867 174,389 1,630,689 212,729 27,629,031 Net assets available for benefits: Beginning of year 925,652 933,188 1,219,588 1,634,374 59,071,723 ---------------------------------------------------------------- End of year $1,917,519 $1,107,577 $2,850,277 $1,847,103 $86,700,754 ============================================================ Page 10 13 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 6. FUND INFORMATION (CONTINUED) STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION - - FOR THE YEAR ENDED DECEMBER 31, 1996 Fund Information ------------------------------------------------------------------ Merck Fidelity Fidelity Fidelity Fidelity Common Magellan Equity- Growth Growth & Stock Fund Income Company Income Fund Fund Portfolio ------------------------------------------------------------------ Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments $5,714,954 ($305,679) $97,534 $182,360 $348,878 Dividends and interest 441,398 943,430 77,511 129,585 162,881 Interest on loans 60,406 23,531 3,990 6,656 5,061 ------------------------------------------------------------------ Total investment income 6,216,758 661,282 179,035 318,601 516,820 ------------------------------------------------------------------ Contributions to the Plan: Participants' 1,960,208 978,499 226,706 660,779 823,014 Employer's 632,454 318,907 76,117 220,703 285,143 Rollovers from other qualified plans 222,539 223,404 61,829 161,244 156,210 ------------------------------------------------------------------ Total contributions 2,815,201 1,520,810 364,652 1,042,726 1,264,367 ------------------------------------------------------------------ Total additions 9,031,959 2,182,092 543,687 1,361,327 1,781,187 ------------------------------------------------------------------ Deductions from net assets attributed to: Benefits paid and distributions to participants (415,106) (227,981) (19,335) (3,945) (5,386) Transfers among funds: Interfund transfers (1,947,659) (1,117,277) 425,466 290,421 1,084,032 Loans to participants, principal (404,862) (111,970) (21,510) (62,268) (34,593) Loan principal repayments from participants 230,176 98,478 14,589 30,073 34,813 ------------------------------------------------------------------ Net transfers among funds (2,122,345) (1,130,769) 418,545 258,226 1,084,252 ------------------------------------------------------------------ Total deductions and net transfers among funds (2,537,451) (1,358,750) 399,210 254,281 1,078,866 ------------------------------------------------------------------ Net increase 6,494,508 823,342 942,897 1,615,608 2,860,053 Net assets available for benefits: Beginning of year 26,275,978 5,252,914 614,599 1,415,253 1,661,163 ------------------------------------------------------------------ End of year $32,770,486 $6,076,256 $1,557,496 $3,030,861 $4,521,216 ================================================================== Fund Information --------------------------------------------------------------------------- Fidelity Fidelity Fidelity Fidelity Fidelity Fidelity Intermediate Retirement OTC Overseas Balanced Retirement Bond Fund Growth Portfolio Fund Fund Money Fund Market Portfolio ----------------------------------------------------------------------------- Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments ($8,358) ($43,712) $68,082 $49,400 $72,295 Dividends and interest 30,031 93,217 184,817 96,704 75,016 $32,025 Interest on loans 185 1,713 4,463 3,232 5,272 1,516 ----------------------------------------------------------------------------- Total investment income 21,858 51,218 257,362 149,336 152,583 33,541 ----------------------------------------------------------------------------- Contributions to the Plan: Participants' 123,486 192,674 365,417 312,367 264,177 75,251 Employer's 46,631 63,859 122,534 96,997 92,665 26,177 Rollovers from other qualified plans 82,639 76,703 37,828 27,299 150,627 49,394 ----------------------------------------------------------------------------- Total contributions 252,756 333,236 525,779 436,663 507,469 150,822 ----------------------------------------------------------------------------- Total additions 274,614 384,454 783,141 585,999 660,052 184,363 ----------------------------------------------------------------------------- Deductions from net assets attributed to: Benefits paid and distributions to participants (5,997) (1,992) (1,424) (2,335) (13,507) (52,395) ----------------------------------------------------------------------------- Transfers among funds: Interfund transfers 72,655 (60,941) 243,213 240,135 (425,938) 401,502 Loans to participants, principal (7,245) (17,137) (25,495) (11,784) (34,539) (18,822) Loan principal repayments from participants 853 5,986 21,191 17,188 19,504 8,141 ----------------------------------------------------------------------------- Net transfers among funds 66,263 (72,092) 238,909 245,539 (440,973) 390,821 ----------------------------------------------------------------------------- Total deductions and net transfers among funds 60,266 (74,084) 237,485 243,204 (454,480) 338,426 ----------------------------------------------------------------------------- Net increase 334,880 310,370 1,020,626 829,203 205,572 522,789 Net assets available for benefits: Beginning of year 284,727 474,364 762,724 786,040 1,394,100 402,863 ----------------------------------------------------------------------------- End of year $619,607 $784,734 $1,783,350 $1,615,243 $1,599,672 $925,652 ============================================================================= Fund Information ---------------------------------------------------------- Fidelity Spartan Participant Total Retirement U.S. Loan Fund Govt. Equity Money Index Market Portfolio Portfolio --------------------------------------------------------- Additions to net assets attributed to: Investment income: Net appreciation in fair value of investments $125,630 $6,301,384 Dividends and interest $29,557 21,245 2,317,417 Interest on loans 4,336 1,348 121,709 --------------------------------------------------------- Total investment income 33,893 148,223 8,740,510 --------------------------------------------------------- Contributions to the Plan: Participants' 28,234 215,982 6,226,794 Employer's 11,560 77,651 2,071,398 Rollovers from other qualified plans 59,007 80,777 1,389,500 --------------------------------------------------------- Total contributions 98,801 374,410 9,687,692 --------------------------------------------------------- Total additions 132,694 522,633 18,428,202 --------------------------------------------------------- Deductions from net assets attributed to: Benefits paid and distributions to participants (5,099) (4,713) ($33,627) (792,842) --------------------------------------------------------- Transfers among funds: Interfund transfers 469,787 324,604 - - Loans to participants, principal (26,233) (5,643) 782,101 - Loan principal repayments from participants 9,920 6,346 (497,258) - --------------------------------------------------------- Net transfers among funds 453,474 325,307 284,843 Total deductions and net transfers among funds 448,375 320,594 251,216 (792,842) --------------------------------------------------------- Net increase 581,069 843,227 251,216 17,635,360 --------------------------------------------------------- Net assets available for benefits: Beginning of year 352,119 376,361 1,383,158 41,436,363 --------------------------------------------------------- End of year $933,188 $1,219,588 $1,634,374 $59,071,723 ========================================================= Page 11 14 ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997 AND 1996 7. On June 19, 1998, Astra AB and Merck & Co., Inc., each a 50 percent owner in the Company, announced that they had signed a definitive agreement under which the Company will be restructured and the Company's business will be combined with Astra AB's wholly-owned subsidiary, Astra USA Inc, in a new Delaware limited partnership named Astra Pharmaceuticals, L.P., over which Astra AB will have management control as the general partner. The Plan Administrative Committee is currently evaluating what impact this will have on the Plan. 15 SCHEDULE I ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES DECEMBER 31, 1997 IDENTITY OF ISSUER DESCRIPTION COST CURRENT VALUE - --------- ------------------------------------ ---- ------------- Merck* Merck Common Stock $20,251,293 $44,555,355 Fidelity* Fidelity Magellan Fund 6,775,799 8,236,883 Fidelity* Fidelity Equity-Income Fund 2,021,178 2,458,094 Fidelity* Fidelity Growth Company Fund 3,920,657 4,324,795 Fidelity* Fidelity Growth & Income Portfolio 7,111,674 8,885,614 Fidelity* Fidelity Intermediate Bond Fund 1,007,890 1,013,114 Fidelity* Fidelity Retirement Growth Fund 1,060,239 984,186 Fidelity* Fidelity OTC Portfolio 2,762,233 2,873,472 Fidelity* Fidelity Overseas Fund 2,402,700 2,507,609 Fidelity* Fidelity Balanced Fund 1,932,983 2,166,328 Fidelity* Fidelity Retirement Money Market Portfolio 1,900,102 1,900,102 Fidelity* Fidelity Retirement Government Money Market Portfolio 1,096,596 1,096,596 Fidelity* Spartan U.S. Equity Index Portfolio 2,166,698 2,791,850 Plan Participant Loans (with interest rates ranging from 1,847,103 1,847,103 6.5% to 11.5% and maturities ranging from 1998 to 2028) ----------- ----------- Totals $56,257,145 $85,641,101 =========== =========== *Party-in-interest Page 13 16 SCHEDULE II ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN SCHEDULE OF REPORTABLE TRANSACTIONS* YEAR ENDED DECEMBER 31, 1997 SALES ----------------------------------------- IDENTITY NUMBER OF NUMBER TOTAL OF ISSUER DESCRIPTION PURCHASES OF SALES PURCHASES PROCEEDS NET COST GAIN (LOSS) - --------- ------------------------------------- --------- -------- --------- -------- -------- ----------- Merck Merck Common Stock 204 126 $5,962,051 $5,913,393 $2,769,527 $3,143,866 Fidelity Fidelity Magellan Fund 150 107 2,234,563 1,091,049 927,170 163,879 Fidelity Fidelity Equity-Income Fund 115 51 1,191,261 632,838 541,600 91,238 Fidelity Fidelity Growth Company Fund 147 93 2,015,578 815,984 676,126 139,858 Fidelity Fidelity Growth & Income Portfolio 167 99 3,765,439 585,468 480,623 104,845 Fidelity Fidelity Intermediate Bond Fund 77 28 516,667 111,217 111,334 (117) Fidelity Fidelity Retirement Growth Fund 71 38 507,424 250,460 250,232 228 Fidelity Fidelity OTC Portfolio 123 66 1,499,898 349,160 315,744 33,416 Fidelity Fidelity Overseas Fund 117 66 1,118,775 250,265 226,448 23,817 Fidelity Fidelity Balanced Fund 90 56 796,348 337,404 303,606 33,798 Fidelity Fidelity Retirement Money Market Portfolio 91 58 2,177,843 1,190,598 1,190,598 -- Fidelity Fidelity Retirement Government Money Market 72 26 433,921 261,845 261,845 -- Portfolio Fidelity Spartan U.S. Equity Index Portfolio 113 41 1,340,267 215,036 168,232 46,804 *Series of transactions in excess of 5% of the current value of the Plan's assets as of January 1, 1997 as defined in Section 2520, 103-6 of the Department of Labor Rules and Regulations for Reporting and Disclosure under ERISA. Page 14 17 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned thereunto duly authorized. ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN (Name of Plan) By: /s/ Linda E. Robertson -------------------------------- Linda E. Robertson Administrative Committee Dated: June 30, 1998 18 Exhibit Index Exhibit - ------- 23.1 Consent of Price Waterhouse LLP