AMENDMENT NO. 1 to RIGHTS AGREEMENT AMENDMENT NO. 1 dated as of December 19, 1995 (this "Amendment") between AETNA LIFE AND CASUALTY COMPANY, a Connecticut insurance corporation (the "Company") and FIRST CHICAGO TRUST COMPANY OF NEW YORK, a New York corporation (the "Rights Agent"). WHEREAS, the Company and the Rights Agent have previously entered into that certain Rights Agreement dated as of October 27, 1989 (the "Rights Agreement"); and WHEREAS, the Company has, pursuant to prior resolutions of the Company's Board of Directors, determined to amend the Rights Agreement as hereinafter set forth. NOW, THEREFORE, the parties hereto agree as follows: 1. All capitalized terms used herein, unless otherwise defined herein, shall have the meanings given them in the Rights Agreement, and each reference in the Rights Agreement to "this Agreement", "hereof", "herein", "hereunder" or "hereby" and each other similar reference shall be deemed to refer to the Rights Agreement as amended hereby. 2. The Rights Agreement is hereby amended as follows: (a) The reference to "20%" in Section 1(a)(i) is amended to read "15%"; (b) The reference to "30%" in Section 1(i)(ii) is amended to read "15%"; and (c) Each reference in Section 11(a)(ii)(A) to "20%" is amended to read "15%". 3. This Amendment shall be construed in accordance with and governed by the laws of the State of Connecticut (without regard to principles of conflict of laws). 4. This Amendment may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. 5. Except as expressly amended hereby, the Rights Agreement shall remain in full force and effect. IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed by their respective authorized officers as of the day and year first above written. AETNA LIFE AND CASUALTY COMPANY By /s/Lucille M. Nickerson _____________________________ Name: Lucille M. Nickerson Title: Corporate Secretary FIRST CHICAGO TRUST COMPANY OF NEW YORK By /s/Ralph Persico ___________________________________ Name: Ralph Persico Title: Customer Service Officer