Question 1

Who is acquiring Dynavax Technologies?

Accepted Answer

Sanofi is acquiring Dynavax Technologies (DVAX) for $1.8B. The deal was announced Dec 10, 2025 and closed Feb 10, 2026.

Question 2

Which hedge funds held DVAX before the acquisition?

Accepted Answer

3 specialist biotech hedge funds held DVAX before the deal: Deep Track Capital, Deerfield Management, Tang Capital Management. This data comes from SEC 13F filings.

Fund	Shares	Value	Entry	At Announcement
Deep Track Capital	15.7M	$241.9M	Dec 2025	No
Deerfield Management	5.2M	$67.3M	Mar 2025	Yes
Tang Capital Management	556K	$8.6M	Dec 2025	No

Dynavax Technologies + Sanofi

Deal Summary

Fund Positioning