WELSH CARSON ANDERSON & STOWE VII LP ET AL

10% owner at AMERISAFE INC · on record since Jan 25, 2006
10% owner at AMCOMP INC /FL · on record since Feb 16, 2006
Director at SAVVIS, Inc. · on record since Jul 5, 2006
10% owner at SAVVIS, Inc. · on record since Jul 5, 2006
10% owner at MEDCATH CORP · on record since Nov 29, 2006
10% owner at CENTENNIAL COMMUNICATIONS CORP /DE · on record since Apr 24, 2007
10% owner at SELECT MEDICAL HOLDINGS CORP · on record since Jul 31, 2003
10% owner at UNITED SURGICAL PARTNERS INTERNATIONAL INC · on record since Aug 6, 2003
10% owner at ALLIANCE DATA SYSTEMS CORP · on record since Sep 17, 2003

Insider trading activity of WELSH CARSON ANDERSON & STOWE VII LP ET AL

Figures computed from official regulatory filings — methodology.

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Company	Filed	Type	Qty	Price	Value · USD	Src
MEDCATH CORP	May 21, 2007	Sell	-1,913,833	33.07	$63.3M	SEC
CENTENNIAL COMMUNICATIONS CORP /DE	Apr 24, 2007	Other	-2,833,053	—	—	SEC
CENTENNIAL COMMUNICATIONS CORP /DE	Apr 10, 2007	Other	-3,000,000	—	—	SEC
SAVVIS, Inc.	Feb 21, 2007	Other	-874,027	—	—	SEC
SAVVIS, Inc.	Dec 27, 2006	Other	-874,028	—	—	SEC
MEDCATH CORP	Nov 29, 2006	Sell	-191,383	25.00	$4.8M	SEC
AMERISAFE INC	Nov 22, 2006	Sell	-7,636,475	11.75	$89.7M	SEC
MEDCATH CORP	Nov 22, 2006	Sell	-1,339,683	25.00	$33.5M	SEC
SAVVIS, Inc.	Jul 5, 2006	Award	1,360,008	—	—	SEC
SAVVIS, Inc.	Jul 5, 2006	OtherD	-7,368	—	—	SEC
AMCOMP INC /FL	Feb 16, 2006	Sell	-1,885,178	9.00	$17M	SEC
AMCOMP INC /FL	Feb 16, 2006	Other	2,332,518	—	—	SEC
AMCOMP INC /FL	Feb 16, 2006	OtherD	-1,335,600	0.00	$0	SEC
AMERISAFE INC	Jan 25, 2006	Sell	-432,231	8.37	$3.6M	SEC
AMERISAFE INC	Nov 23, 2005	Other	-751,602	—	—	SEC
AMERISAFE INC	Nov 23, 2005	Other	7,867,975	—	—	SEC
SAVVIS, Inc.	Dec 16, 2004	Other	-234,514	—	—	SEC
SAVVIS, Inc.	Dec 16, 2004	Other	2,345,140	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Nov 8, 2004	Sell	-400,000	41.43 USD	—	SEC
ALLIANCE DATA SYSTEMS CORP	Nov 1, 2004	Other	-1,374,942	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Jun 30, 2004	Other	-3,715,000	—	—	SEC
SAVVIS, Inc.	May 10, 2004	Sell	-15,417	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Apr 29, 2004	Other	-3,715,000	—	—	SEC
SAVVIS, Inc.	Mar 31, 2004	Other	-243,652	33.02 USD	—	SEC
SAVVIS, Inc.	Mar 31, 2004	OtherD	-493,583	—	—	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
MEDCATH CORP	May 21, 2007	Sell	-1,913,833	33.07	$63.3M	SEC
CENTENNIAL COMMUNICATIONS CORP /DE	Apr 24, 2007	Other	-2,833,053	—	—	SEC
CENTENNIAL COMMUNICATIONS CORP /DE	Apr 10, 2007	Other	-3,000,000	—	—	SEC
SAVVIS, Inc.	Feb 21, 2007	Other	-874,027	—	—	SEC
SAVVIS, Inc.	Dec 27, 2006	Other	-874,028	—	—	SEC
MEDCATH CORP	Nov 29, 2006	Sell	-191,383	25.00	$4.8M	SEC
AMERISAFE INC	Nov 22, 2006	Sell	-7,636,475	11.75	$89.7M	SEC
MEDCATH CORP	Nov 22, 2006	Sell	-1,339,683	25.00	$33.5M	SEC
SAVVIS, Inc.	Jul 5, 2006	Award	1,360,008	—	—	SEC
SAVVIS, Inc.	Jul 5, 2006	OtherD	-7,368	—	—	SEC
AMCOMP INC /FL	Feb 16, 2006	Sell	-1,885,178	9.00	$17M	SEC
AMCOMP INC /FL	Feb 16, 2006	Other	2,332,518	—	—	SEC
AMCOMP INC /FL	Feb 16, 2006	OtherD	-1,335,600	0.00	$0	SEC
AMERISAFE INC	Jan 25, 2006	Sell	-432,231	8.37	$3.6M	SEC
AMERISAFE INC	Nov 23, 2005	Other	-751,602	—	—	SEC
AMERISAFE INC	Nov 23, 2005	Other	7,867,975	—	—	SEC
SAVVIS, Inc.	Dec 16, 2004	Other	-234,514	—	—	SEC
SAVVIS, Inc.	Dec 16, 2004	Other	2,345,140	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Nov 8, 2004	Sell	-400,000	41.43 USD	—	SEC
ALLIANCE DATA SYSTEMS CORP	Nov 1, 2004	Other	-1,374,942	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Jun 30, 2004	Other	-3,715,000	—	—	SEC
SAVVIS, Inc.	May 10, 2004	Sell	-15,417	—	—	SEC
ALLIANCE DATA SYSTEMS CORP	Apr 29, 2004	Other	-3,715,000	—	—	SEC
SAVVIS, Inc.	Mar 31, 2004	Other	-243,652	33.02 USD	—	SEC
SAVVIS, Inc.	Mar 31, 2004	OtherD	-493,583	—	—	SEC