# Seagen

Advanced therapeutics — Precision targeting.

Source: https://en.bioecon.ru/companies/seagen/
Updated: 2026-07-02

- Country: United States

## Verifiable facts

| Fact | Value | Source |
| --- | --- | --- |
| Funding | $2.276 billion total funding raised prior to acquisition | https://www.pfizer.com/news/press-release/press-release-detail/pfizer-completes-acquisition-seagen, https://www.pfizer.com/news/press-release/press-release-detail/pfizer-invests-43-billion-battle-cancer |
| Production site | Bothell, Washington (existing manufacturing site); Everett, Washington (planned facility cancelled in 2024) | https://www.businesswire.com/news/home/20220420005345/en/Seagen-Announces-Plans-to-Expand-Pacific-Northwest-Biomanufacturing-Capacity-to-Support-Growing-Portfolio-of-Transformative-Cancer-Medicines, https://www.fiercepharma.com/pharma/pfizer-lays-100-former-seagen-hq-seattle-area, https://www.fiercepharma.com/pharma/pfizer-puts-74-seagen-jobs-chop-it-continues-consolidate-newly-combined-cancer-organization, https://www.pharmaceutical-technology.com/projects/seagens-biologics-facility-everett/ |
| Headcount | approximately 2,800 worldwide, with 1,600-1,800 in the Pacific Northwest as of 2022; reduced to 418 employees in LinkedIn profile by late 2023 | https://www.biopharmadive.com/news/seagen-manufacturing-plant-cancer-medicines/622457/, https://www.businesswire.com/news/home/20220420005345/en/Seagen-Announces-Plans-to-Expand-Pacific-Northwest-Biomanufacturing-Capacity-to-Support-Growing-Portfolio-of-Transformative-Cancer-Medicines, https://www.geekwire.com/2023/pfizer-wins-regulatory-approval-for-its-43b-acquisition-of-seattle-area-biotech-giant-seagen/ |
| Revenue | $2.0 billion for full year 2022 | https://firstwordpharma.com/story/5706841, https://www.pfizer.com/news/press-release/press-release-detail/pfizer-invests-43-billion-battle-cancer, https://www.sec.gov/Archives/edgar/data/1060736/000106073622000037/sgen-20220331.htm |
| Regulatory approval | Received all required regulatory approvals for Pfizer acquisition in December 2023 | https://timesofindia.indiatimes.com/world/us/pfizer-set-to-finalize-43-billion-seagen-deal-unveils-new-cancer-division/articleshow/105941483.cms, https://www.pfizer.com/news/press-release/press-release-detail/pfizer-receives-all-required-regulatory-approvals-complete?ttype=em |
| Capacity | Planned 270,000-square-foot facility in Everett cancelled; production moved to Pfizer's Sanford, North Carolina site [medium confidence] | https://www.fiercepharma.com/pharma/pfizer-puts-74-seagen-jobs-chop-it-continues-consolidate-newly-combined-cancer-organization, https://www.pharmaceutical-technology.com/projects/seagens-biologics-facility-everett/ |

Independent sources: biopharmadive.com, businesswire.com, fiercepharma.com, firstwordpharma.com, geekwire.com, pfizer.com, pharmaceutical-technology.com, sec.gov, timesofindia.indiatimes.com

## Technologies

- [Antibody-drug conjugates (ADCs)](https://en.bioecon.ru/technology/antibody-drug-conjugates-adcs/)