Seagen Stockholders Approve Acquisition by Pfizer
Acquisition expected to close in late 2023 or early 2024
New Seagan building

BOTHELL, WA - Following a special meeting of its stockholders, Seagen Inc. (Nasdaq: SGEN) today announced that its stockholders voted to approve a proposal to adopt the previously announced merger agreement under which Pfizer will acquire Seagen for $229 per share in cash. More than 99% of the shares voted at the meeting, representing approximately 88% of the shares of Seagen common stock issued and outstanding as of the record date for the special meeting, were voted in favor of the proposal to adopt the merger agreement.

“We are pleased with the outcome of today’s special meeting vote to approve Seagen’s acquisition by Pfizer and thank our stockholders for their support for this compelling transaction,” said David Epstein, Chief Executive Officer of Seagen. “The affirmative vote brings us one step closer to joining with Pfizer to accelerate our ability to deliver transformative cancer medicines to more patients in need around the world.”

Seagen will file the final, certified voting results in a Form 8-K with the U.S. Securities and Exchange Commission.

Subject to the fulfillment of customary closing conditions, including receipt of required regulatory approvals, the acquisition is expected to close in late 2023 or early 2024.

About Seagen

Seagen is a global biotechnology company that discovers, develops and commercializes transformative cancer medicines to make a meaningful difference in people’s lives. Seagen is headquartered in the Seattle, Washington area, and has locations in California, Canada, Switzerland and the European Union. For more information on the company’s marketed products and robust pipeline, visit www.seagen.com and follow @SeagenGlobal on Twitter.