Lassen Therapeutics
Founded 2019 · 10 employees on LinkedIn · 9 known investors
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Lassen Therapeutics is a biotechnology company developing therapeutics targeting IL-11, with a pipeline focused on immune and fibrotic diseases.
Founders & leadership
Lassen Therapeutics was founded in 2019 by David King.



Investors · 9
How we know: Alta Partners's portfolio page · funding news · biospace.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Catalio Capital Management, LP's portfolio page · Not right? Tell us
How we know: DC Investment Partners's portfolio page · Not right? Tell us
How we know: Frazier Life Sciences's portfolio page · sdbj.com · Not right? Tell us
How we know: Longitude Capital's portfolio page · sdbj.com · the VCSheet dataset · Not right? Tell us
How we know: Longwood Fund's portfolio page · funding news · biospace.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news · biospace.com · Not right? Tell us
Funding
SEC filings, press & company announcements$85M disclosed across 1 of 3 rounds · 2020–2024
- Undisclosed amountSeries BJan 2024
Frazier Life Sciences (lead), Longitude Capital (lead), Alta Partners, BVF Partners, Catalio Capital Management, Longwood Fund
Source ↗ - $85MSeries BDec 2023 · 2 sourcesSource ↗
- Undisclosed amountSeries AJun 2020
Frazier Healthcare Partners (lead), Alta Partners, Longwood Fund
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Founder mafia
2 people who came through Lassen Therapeutics went on to found or lead other companies.
In the news
Frequently asked questions
- What does Lassen Therapeutics do?
- Lassen Therapeutics is a biotechnology company developing therapeutics targeting IL-11, with a pipeline focused on immune and fibrotic diseases.
- Who founded Lassen Therapeutics?
- Lassen Therapeutics was founded by David King in 2019.
- Who are Lassen Therapeutics's investors?
- Lassen Therapeutics's investors include Alta Partners, Catalio Capital Management, LP, DC Investment Partners, Frazier Life Sciences, Longitude Capital, Longwood Fund, Biotechnology Value Fund, Catalio Capital Management and 1 more.
- How much funding has Lassen Therapeutics raised?
- Lassen Therapeutics has disclosed $85M raised across 1 of its 3 known rounds.





