TechM&AProofpoint says HSR period expired for $12.3B sale to Thoma BravoJun. 16, 2021 9:14 AM ETProofpoint, Inc. (PFPT) StockPFPTBy: Joshua Fineman, SA News Editor Sundry Photography/iStock Editorial via Getty Images Proofpoint (NASDAQ:PFPT) disclosed that the HSR antitrust review period for its planned $12.3B sale to Thoma Bravo expired on Monday, according to an 8-K filing. Last week, Proofpoint said it didn't receive any alternative offers in go-shop period. Recommended For YouMore Trending NewsSee More »Related StocksSymbolLast Price% ChgPFPT--Proofpoint, Inc.Trending AnalysisTrending News