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Sanofi's[1] press release is dated February 10, 2026 and says it accepted tendered shares for payment and completed the merger that day, after the tender offer expired on 9 February.On 10 February 2026 Sanofi completed the acquisition of vaccine maker Dynavax at US$15.50 a share in cash, adding the two-dose hepatitis B vaccine Heplisav-B and a shingles vaccine candidate.
$2.2B
1.00
