Gregory Grogan

Gregory Grogan is Head of Simpson Thacher’s Executive Compensation and Employee Benefits Practice, specializing in executive retention and motivation in M&A transactions and IPOs with a private equity focus. Significant engagements include 150+ Blackstone acquisitions, divestitures and IPOs (Hilton, Bumble, Ancestry, Refinitiv, SeaWorld, Vivint, Invitation Homes, Equity Office, Motel 6, Jersey Mike’s); LBOs of PetSmart, ADT and Nortek; and multiple transactions for AIG, Centerbridge, Cisco, Mars, Microsoft (Activision Blizzard, LinkedIn, Skype, GitHub, ZeniMax, Nuance), New Mountain, Silver Lake Partners, SiriusXM, PPL and Johnson Controls/Tyco, as well as the Board of Directors of Twitter, Inc. in its sale to Elon Musk. Greg regularly advises boards regarding C-level succession matters and is experienced in PBGC negotiations.

Joined Firm, 2000; Partner 2007.