Proofpoint agrees to buy Varonis in a $6.3 billion all-cash deal
Thoma Bravo's Proofpoint will take the data security firm private.
Deals · Friday, October 16, 2026 · 12:30 PM ET
Proofpoint, a company owned by private equity firm Thoma Bravo, agreed to buy data security company Varonis Systems in an all-cash deal valued at about $6.3 billion, the companies said Thursday (Proofpoint, WSJ, CNA).
Varonis shareholders will receive $49.75 a share in cash, a 52% premium to the June 22 closing price, the day before reports of a possible sale first surfaced, per the Proofpoint release and CNA. CNA said the price values Varonis' equity at $5.71 billion and that the shares rose about 2.7% in extended trading. Varonis shares were up 2.8% Friday morning, Reuters reported. The deal is expected to close in the first half of 2027 (CNA, SecurityWeek).
SecurityWeek called it the largest cybersecurity acquisition announced so far in 2026. WSJ said the deal reflects AI security driving deals and investment across the industry. Once complete, Varonis will become a private company (SecurityWeek). For the day's broader market, see our midday story.