Deals of the day: mergers and acquisitions

Proofpoint, owned by Thoma Bravo, will buy Varonis Systems in an all-cash deal valued at about $6.3 billion. CCC Intelligent Solutions agreed to a $6.1 billion take-private deal with a consortium led by GTCR and including Elliott Investment Management. Labcorp will buy assets from an Opko Health subsidiary for $722 million, with a possible additional payment of up to $150 million tied to revenue from a prostate cancer test. EQT agreed to buy Stockbridge for an initial $375 million.

Custom Ink is exploring a sale that could value it at close to $1.5 billion. Irenic Capital Management has built a roughly 4% stake in Big Yellow Group and is pushing it to explore a sale, the Financial Times reportedly said. Richemont is in talks to join a consortium bidding for De Beers, valued at about $1 billion. Cohere signed a letter of intent to buy cybersecurity startup Aisle. International Paper is in talks with potential bidders for its Europe, Middle East and Africa packaging business after unsolicited approaches.

UniCredit said the European Central Bank authorised it to take control of Commerzbank after its stake in the German rival reached 48%. Germany reportedly plans a cooperation agreement with Nvidia to encourage AI adoption in industry. Lufthansa is in talks to take full control of TAP as Portugal seeks support to sell the state’s remaining 50.1% stake for €1.351 billion ($1.52 billion). EasyJet faces union opposition to its £5.7 billion ($7.5 billion) takeover by Apollo but says the deal remains on track to close before the end of the first quarter of next year. Delfin has held preliminary talks with banks about financing a possible purchase of stakes in the holding company.