https://techcrunch.com/2021/04/26/thoma-bravo-buys-cybersecurity-vendor-proofpoin-for-12-3b-in-cash/ > More M&A activity is underway in the red-hot field of cybersecurity. In the latest development, private equity giant Thoma Bravo is buying Proofpoint, the SaaS security vendor, for $12.3 billion in cash. > Proofpoint is traded publicly on the Nasdaq exchange and as of its closing price on Friday, it had a market cap of $7.5 billion. This bid, which will see the company go private, is a big hike on its latest share price. The deal has been endorsed by Proofpoint’s board. If approved by shareholders, it will close in Q3 of this year.