- ------------------------------------------------------------------------------- - ------------------------------------------------------------------------------- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------------------------------- RULE 13E-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) (Amendment No. 2) ---------------------------------- MYCOGEN CORPORATION (Name of the Issuer) MYCOGEN CORPORATION THE DOW CHEMICAL COMPANY ROFAN SERVICES INC. CENTEN AG INC. DOW AGROSCIENCES LLC and AGROSCIENCES ACQUISITION INC. (Name of Person(s) Filing Statement) COMMON STOCK PAR VALUE $0.001 PER SHARE (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS) (Title of Class of Securities) 628452 10 4 (CUSIP Number of Class of Securities) John Scriven Jane M. Gootee Brian G. Taylorson Vice President, General Vice President President Counsel and Secretary Rofan Services Inc. Centen Ag Inc. The Dow Chemical Company 2030 Dow Center 2030 Dow Center 2030 Dow Center Midland, Michigan 48674 Midland, Michigan 48674 Midland, Michigan 48674 (517) 636-1000 (517) 636-1000 (517) 636-1000 Louis W. Pribila Brian G. Taylorson Carlton J. Eibl Vice President, Secretary President President and General Counsel AgroSciences Acquisition Inc. Mycogen Corporation Dow AgroSciences LLC 2030 Dow Center 5501 Oberlin Drive 9330 Zionsville Road Midland, Michigan 48674 San Diego, CA 92121-1718 Indianapolis, Indiana 46268 (517) 636-1000 (619) 453-8030 (317) 337-3000 with copies to: Scott J. Davis Norman M. Gold James T. Lidbury Peter H. Lieberman Mayer, Brown & Platt Altheimer & Gray 190 South LaSalle Street 10 South Wacker Drive Chicago, Illinois 60603 Suite 4000 (312) 782-0600 Chicago, Illinois 60606 312) 715-4000 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications on Behalf of Persons Filing Statement) This statement is filed in connection with (check the appropriate box): a. / / The filing of solicitation materials or an information statement subject to Regulation 14A, Regulation 14C or Rule 13e-3(c) under the Securities Act of 1934. b. / / The filing of a registration statement under the Securities Act of 1933. c. /X/ A tender offer. d. / / None of the above. Check the following box if the soliciting materials or information statement referred to in checking box (a) are preliminary copies: / / CALCULATION OF FILING FEE - -------------------------------------------------------------------------- - -------------------------------------------------------------------------- Transaction Valuation* Amount of Filing Fee - -------------------------------------------------------------------------- $374,232,918 $74,847 - -------------------------------------------------------------------------- - -------------------------------------------------------------------------- * For purposes of calculating the filing fee only. This amount assumes the purchase of 11,532,381 shares of common stock (the "Shares") of the subject company at $28.00 in cash per Share as well as the purchase of 3,568,635 Shares subject to outstanding options at $28.00 per Share less the average exercise price per Share subject to such options of $13.6174. Check box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. /X/ Amount Previously Paid: $74,847 Form or Registration Number: Schedule 14D-1. Filing Party: The Dow Chemical Company, Rofan Services Inc., Centen Ag Inc., Dow AgroSciences LLC and AgroSciences Acquisition Inc. Date Filed: September 4, 1998. - ------------------------------------------------------------------------------- - ------------------------------------------------------------------------------- INTRODUCTION This amended Rule 13e-3 Transaction Statement is being filed by Mycogen Corporation (the "Company"), The Dow Chemical Company ("TDCC"), Rofan Services Inc. ("Rofan"), Centen Ag Inc. ("Centen"), AgroSciences Acquisition Inc. ("Purchaser") and Dow AgroSciences LLC ("Parent") for the sole purpose of filing Exhibits 99(b)(5), 99(b)(6) and 99(b)(7). -1- SIGNATURES After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: September 28, 1998. THE DOW CHEMICAL COMPANY By /s/ G. MICHAEL LYNCH -------------------------------------- Name: G. Michael Lynch Title: Vice President and Controller ROFAN SERVICES INC. By /s/ J. PEDRO REINHARD -------------------------------------- Name: J. Pedro Reinhard Title: President CENTEN AG INC. By /s/ BRIAN G. TAYLORSON -------------------------------------- Name: Brian G. Taylorson Title: President DOW AGROSCIENCES LLC By /s/ LOUIS W. PRIBILA -------------------------------------- Name: Louis W. Pribila Title: Vice President, Secretary and General Counsel AGROSCIENCES ACQUISITION INC. By /s/ BRIAN G. TAYLORSON -------------------------------------- Name: Brian G. Taylorson Title: President MYCOGEN CORPORATION By /s/ CARLTON J. EIBL -------------------------------------- Name: Carlton J. Eibl Title: President -12- EXHIBIT INDEX SEQUENTIALLY EXHIBIT NO. DESCRIPTION NUMBERED PAGE ------------ ----------- --------------- 99(b)(1) Salomon Smith Barney Report to Dow AgroSciences LLC dated August 3, 1998.* 99(b)(2) Wasserstein Perella & Co., Inc. Report to the Special Committee of Mycogen Corporation dated August 3, 1998.* 99(b)(3) Wasserstein Perella & Co., Inc. Report to the Special Committee of Mycogen Corporation dated August 31, 1998.* 99(b)(4) Opinion of Wasserstein Perella & Co., Inc. to the Special Committee of Mycogen Corporation dated August 31, 1998.* 99(b)(5) Wasserstein Perella & Co., Inc. Presentation to the Special Committee of Mycogen Corporation dated July 27, 1998.** 99(b)(6) Wasserstein Perella & Co., Inc. Presentation on Valuation of Mycogen Corporation dated July 20, 1998.** 99(b)(7) Wasserstein Perella & Co., Inc. Preliminary Presentation to the Special Committee of the Board of Directors of Mycogen Corporation dated June 25, 1998.** 99(c)(1) Agreement and Plan of Merger among Mycogen Corporation, Dow AgroSciences LLC and AgroSciences Acquisition Inc. dated as of August 31, 1998. (Incorporated herein by reference from Exhibit 99.1 to Amendment No. 15 to Schedule 13D filed September 1, 1998).* 99(c)(2) Confidentiality Agreement among Mycogen Corporation, The Dow Chemical Company and Dow AgroSciences LLC dated July 16, 1998.* 99(c)(3) Exchange and Purchase Agreement among Mycogen Corporation, Agrigenetics, Inc., DowElanco and United AgriSeeds, Inc. dated as of January 15, 1996 (Incorporated herein by reference from Exhibit 99(a)(1) to Schedule 13D filed January 25, 1996).* 99(c)(4) Amendment to Exchange and Purchase Agreement between Mycogen Corporation and Dow AgroSciences LLC dated as of July 22, 1998 (Incorporated herein by reference from Exhibit 99(1) to Amendment No. 14 to Schedule 13D filed July 23, 1998).* 99(c)(5) Technology Agreement among Mycogen Corporation, Agrigenetics, Inc. and DowElanco dated as of February 19, 1996 (Incorporated herein by reference from Exhibit B to Exhibit 99(a)(1) to Schedule 13D filed January 25, 1996).* 99(c)(6) Brassica License and Research Agreement between Dow Elanco Canada and Mycogen Corporation dated October 30, 1997.* 99(c)(7) Restated Loan Agreement between Dow AgroSciences LLC and Mycoyen S.A. dated May 15, 1998.* 99(c)(8) Loan Agreement between Dow Elanco and Mycogen Corporation dated as of April 1, 1997 (the "Dow Loan Agreement").* 99(c)(9) Amendment No. 1 to Dow Loan Agreement dated as of September 29, 1997.* 99(c)(10) Amendment No. 2 to Dow Loan Agreement dated as of November 14, 1997.* 99(c)(11) Amendment No. 3 to Dow Loan Agreement dated as of November 18, 1997.* 99(c)(12) Amendment No. 4 to Dow Loan Agreement dated as of April 6, 1998.* 99(c)(13) Amendment No. 5 to Dow Loan Agreement dated as of October 1, 1997.* 99(c)(14) Loan Agreement between Mycogen Corporation and DowElanco dated as of April 1, 1997 (the "Mycogen Loan Agreement"). 99(c)(15) Amendment No. 1 to Mycogen Loan Agreement dated as of April 6, 1998.* 99(c)(16) Amendment No. 2 to Mycogen Loan Agreement dated as of October 1, 1997.* 99(c)(17) Memorandum of Understanding dated September 3, 1998.* 99(d)(1) Offer to Purchase dated September 4, 1998.* 99(d)(2) Form of Letter of Transmittal.* 99(d)(3) Form of Notice of Guaranteed Delivery.* 99(d)(4) Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and other Nominees dated September 4, 1998.* 99(d)(5) Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and other Nominees. 99(d)(6) Form of Option Election.* 99(d)(7) Form of Stock Purchase Election.* 99(d)(8) Form of Restricted Stock Election.* 99(d)(9) Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9.* 99(d)(10) Form of Summary Advertisement.* 99(e)(1) Chapter 13 of the California General Corporation Law (Incorporated herein by reference from Schedule II to the Offer to Purchase).* 99(g)(1) Complaint filed in Susser v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Diego, filed May 1, 1998).* 99(g)(2) Complaint filed in Harbor Finance Partners v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Diego, filed May 1, 1998).* 99(g)(3) Complaint filed in Ellis Investments, Ltd. v. Eibl et al. (Superior Court of the State of California, County of San Diego, filed May 1, 1998).* 99(g)(4) Complaint filed in Kolb v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Deigo, filed May 5, 1998).* 99(g)(5) Complaint filed in Anderson v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Diego, filed May 5, 1998).* 99(g)(6) Complaint filed in Boettcher v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Diego, filed May 8, 1998).* 99(g)(7) Complaint filed in Verrone v. Mycogen Corporation et al. (Superior Court of the State of California, County of San Diego, filed May 15, 1998).* 99(g)(8) Order of Consolidation entered in Susser v. Mycogen Corporation et al. (Superior Court of State of California, County of San Diego, entered June 22, 1998).* - -------------- * Previously filed. ** Filed herewith.