144 0001524599 XXXXXXXX LIVE 0001668397 Medpace Holdings, Inc. 001-37856 5375 Medpace Way Cincinnati OH 45227 513-579-9911 Medpace Investors, LLC Affiliate Common UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

100000 41000000 30759281 03/07/2024 NASDAQ Common 06/11/2011 Acquired in CCMP acquisition Issuer N 100000 06/11/2011 Cash N Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/16/2024 50000 19587423 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/20/2024 13988 5404793 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/21/2024 36012 13808612 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/22/2024 100000 39597941 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/23/2024 100000 40031795 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/26/2024 56928 22906727 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/27/2024 50000 20094187 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/28/2024 50000 20206277 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 02/29/2024 20000 7874236 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 03/01/2024 80000 32150477 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 03/04/2024 50000 20156173 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 03/05/2024 50000 20134876 Medpace Investors, LLC

5375 Medpace Way Cincinnati OH 45227

Common 03/06/2024 100000 41297784 03/07/2024 /s/ UBS Financial Services Inc, as attorney-in-fact for Medpace Investors, LLC