X0202 3 2006-04-05 0 0000773660 HealthMarkets, Inc. UCI 0001162988 BLACKSTONE CAPITAL PARTNERS IV LP C/O BLACKSTONE GROUP 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001277410 BLACKSTONE MANAGEMENT ASSOCIATES IV LLC C/O THE BLACKSTONE GROUP 345 PARK AVE NEW YORK NY 10154 0 0 1 0 0001277408 BLACKSTONE FAMILY INVESTMENT PARTNERSHIP IV-A LP C/O THE BLACKSTONE GROUP 345 PARK AVE NEW YORK NY 10154 0 0 1 0 0001277407 BLACKSTONE CAPITAL PARTNERS IV-A LP C/O THE BLACKSTONE GROUP 345 PARK AVE NEW YORK NY 10154 0 0 1 0 0001352705 Blackstone Participation Partnership IV L.P. C/O THE BLACKSTONE GROUP 345 PARK AVENUE, 31ST FLOOR NEW YORK NY 10154 0 0 1 0 0001070843 PETERSON PETER G C/O THE BLACKSTONE GROUP 345 PARK AVE NEW YORK NY 10154 0 0 1 0 0001070844 SCHWARZMAN STEPHEN A C/O THE BLACKSTONE GROUP 345 PARK AVE NEW YORK NY 10154 0 0 1 0 Class A-1 common stock, par value $0.01 per share 15499354.7 I See Class A-1 common stock, par value $0.01 per share 245239.9 I See Class A-1 common stock, par value $0.01 per share 694658.1 I See Class A-1 common stock, par value $0.01 per share 47233.8 I See Blackstone Capital Partners IV L.P. ("BCP IV"), Blackstone Capital Partners IV-A L.P. ("BCP IV-A"), Blackstone Family Investment Partnership IV-A L.P. ("BFIP"), and Blackstone Participation Partnership IV L.P. ("BPP" and, collectively with BCP IV, BCP IV-A, and BFIP, the "investment funds") respectively own 15,499,354.6865 shares, 245,239.9100 shares, 694,658.1100 shares, and 47,233.7800 shares of the class A-1 common stock reported as beneficially owned in the above table. Blackstone Management Associates IV L.P. ("BMA") is the general partner of each of the investment funds. BMA may be deemed to be the beneficial owner of the shares of class A-1 common stock held by the investment funds. Messrs. Peter G. Peterson and Stephen A. Schwarzman are directors and controlling persons of BMA and, as such, may be deemed to share beneficial ownership of the shares of common stock held by the investment funds. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Securities Exchange Act of 1934, as amended, each of the Reporting Persons, other than the investment funds, herein states that this filing shall not be deemed an admission that he or it is the beneficial owner of any of the shares of common stock covered by this Statement. Each of BMA, Mr. Peterson and Mr. Schwarzman disclaims beneficial ownership of the common stock, except to the extent of its or his pecuniary interest in such shares of common stock. See signatures of Reporting Persons attached as Exhibit 99.1 2006-04-17