Type	Name	Date
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	08/10/2017
Credit agreement	First Amendment, to the Term Loan Credit Agreement	11/22/2016
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	06/09/2016
Credit agreement	Third Amendment, to the Five-Year Credit Agreement	07/31/2015
Credit agreement	$3.2 billion Term Loan Credit Agreement	07/31/2015
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	11/10/2014
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	03/07/2014
Indenture	First Supplemental Indenture, among Aetna Inc., Coventry Health Care, Inc. and U.S. Bank National Association	05/07/2013
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	11/07/2012
Credit agreement	First Amendment, to the Credit Agreement	09/27/2012
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	05/04/2012
Indenture	Supplemental Indenture between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating the Senior Notes	05/20/2011

Type	Name	Date
By-Laws	Amended and Restated Bylaws of Aetna Inc	11/28/2018

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, among CVS Health Corporation, Hudson Merger Sub Corp. and Aetna Inc	12/06/2017
Merger agreement	Agreement and Plan of Merger among Aetna Inc., Echo Merger Sub, Inc., Echo Merger Sub, LLC and Humana Inc	07/08/2015
Merger agreement	Agreement and Plan of Merger among Aetna Inc., Jaguar Merger Subsidiary, Inc. and Coventry Health Care, Inc	08/22/2012