Dynavax Technologies (DVAX) Stock After the Bell on Dec. 24, 2025: Sanofi’s $2.2B Buyout, After‑Hours Action, and What to Watch Before the Next Market Open
Dynavax Technologies Corporation (NASDAQ: DVAX) is the standout mover heading into the Christmas break after Sanofi agreed to acquire the vaccine maker in an all-cash deal valued at about $2.2 billion. The transaction price — $15.50 per share in cash — instantly re-framed DVAX from a “biotech fundamentals” story into a deal-arbitrage stock, with trading now anchored around the buyout price. Reuters+2PR Newswire+2 A timing note that matters for anyone planning “tomorrow” trades: U.S. equities had a holiday early close today (Dec. 24) at 1:00 p.m. ET, and the market is closed Thursday, Dec. 25 for Christmas. The next regular