As filed with the Securities and Exchange Commission on January 31, 1996 Registration No. 33-64665 SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT Under THE SECURITIES ACT OF 1933 MERCK & CO., INC. (Exact name of registrant as specified in its charter) New Jersey 22-1109110 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) One Merck Drive Whitehouse Station, NJ 08889-0100 (Address of principal executive offices (Zip Code) ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN (Full title of the plan) CELIA A. COLBERT Secretary and Assistant General Counsel Merck & Co., Inc. One Merck Drive Whitehouse Station, New Jersey 08889-0100 (Name and address of agent for service) (908) 423-1000 (Telephone number, including area code, of agent for service) Copy of all communications to: ROBERT J. LICHTENSTEIN, ESQ. Morgan, Lewis & Bockius LLP 2000 One Logan Square Philadelphia, PA 19103 (215) 963-5726 Item 8. Exhibits. The exhibits filed as part of this Registration Statement are as follows: Exhibit Method of Number Exhibit Filing 5.1 Opinion re legality (Common Stock of Registrant) (1) Previously filed 5.2 Opinion of Morgan, Lewis & Bockius LLP (interests in Plan) Previously filed 23.1 Consent of Arthur Andersen LLP Previously filed 23.2 Consent of Price Waterhouse LLP Previously filed 23.3 Consent of Morgan, Lewis & Bockius LLP (included in Exhibit 5.2) Previously filed 24 Power of Attorney and Certified Resolution of Board of Directors Previously filed 99 Astra Merck Inc. Employee Savings and Security Plan Filed herewith (1) In lieu of an opinion of counsel concerning compliance with the requirements of the Employee Retirement Income Security Act of 1974 as amended ("ERISA") and an Internal Revenue Service ("IRS") determination letter that the Plan is qualified under Section 401 of the Internal Revenue Code of 1986, as amended, the Registrant hereby undertakes to submit the Plan to the IRS in a timely manner, and shall make all changes required by the IRS, in order to qualify the Plan. 1 SIGNATURES The Registrant. Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Amendment to be signed on its behalf by the undersigned, thereunto duly authorized, in Whitehouse Station, New Jersey, on the 19th day of December, 1995. MERCK & CO., INC. By: * RAYMOND V. GILMARTIN Chairman of the Board, President and Chief Executive Office and Director By: /s/ Celia A. Colbert CELIA A. COLBERT Secretary and Assistant General Counsel (Attorney-in-fact) Pursuant to the requirements of the Securities Act 1933, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated. Signatures Title Date * Chairman of the Board, December 19, 1995 Raymond V. Gilmartin President and Chief Executive Officer; Principal Executive Officer; Director * Senior Vice President December 19, 1995 Judy C. Lewent and Chief Accounting Officer; Principal Financial Officer * Vice President, Controller; December 19, 1995 Peter E. Nugent Principal Accounting Officer * Director December 19, 1995 H. Brewster Atwater, Jr. * Director December 19, 1995 Derek Birkin * Director December 19, 1995 Lawrence A. Bossidy 2 * Director December 19, 1995 William G. Bowen, Ph.D. * Director December 19, 1995 Johnnetta B. Cole, Ph.D. * Director December 19, 1995 Carolyne K. Davis, Ph.D. * Director December 19, 1995 Lloyd C. Elam, M.D. * Director December 19, 1995 Charles E. Exley, Jr. * Director December 19, 1995 William N. Kelley, M.D. * Director December 19, 1995 Samuel O. Thier, M.D. * Director December 19, 1995 Dennis Weatherstone Celia A. Colbert, by signing her name hereto, does hereby sign this document pursuant to powers of attorney duly executed by the persons named, filed with the Securities and Exchange Commission as an exhibit to the Registration Statement, on behalf of such persons, all in the capacities and on the date stated, such persons including a majority of the directors of the Company. By: /s/ Celia A. Colbert CELIA A. COLBERT Secretary and Assistant General Counsel (Attorney-in-Fact) The Plan. Pursuant to the requirements of the Securities Act of 1933, the Plan has duly caused this Amendment to be signed on its behalf by the undersigned, thereunto duly authorized, in Wayne, Pennsylvania on December 18, 1995. ASTRA MERCK INC. EMPLOYEE SAVINGS AND SECURITY PLAN By: /s/ Linda E. Robertson Name: Linda E. Robertson Title: Administrative Committee 3 INDEX TO EXHIBITS Sequentially Exhibit Numbered Number Exhibit Page 5.1 Opinion re legality (Common Stock of Registrant) (1) Previously Filed 5.2 Opinion of Morgan, Lewis & Bockius LLP (interests in Plan) Previously Filed 23.1 Consent of Arthur Andersen LLP Previously Filed 23.2 Consent of Price Waterhouse LLP Previously Filed 23.3 Consent of Morgan, Lewis & Bockius LLP (included in Exhibit 5.2) Previously Filed 24 Power of Attorney and Certified Resolution of Board of Directors Previously Filed 99 Astra Merck Inc. Employee Savings and Security Plan (1) In lieu of an opinion of counsel concerning compliance with the requirements of the Employee Retirement Income Security Act of 1974 as amended ("ERISA") and an Internal Revenue Service ("IRS") determination letter that the Plan is qualified under Section 401 of the Internal Revenue Code of 1986, as amended, the Registrant hereby undertakes to submit the Plan to the IRS in a timely manner, and shall make all changes required by the IRS, in order to qualify the Plan. 1