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Longwood Fund
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Longwood Fund

https://www.longwoodfund.com
Last activity: 08.04.2026
Active
Longwood creates and invests in science-based companies that develop novel solutions for important medical problems.
Portfolio
4
Mentions
33
Location: United States, Massachusetts, Boston
Employees: 1-10
Founded date: 2010
Investment Type: Venture Capital

Portfolio 4

DateNameWebsiteTotal RaisedLocation
07.01.2026Mediar The...mediartx.com$181MUnited Sta...
07.11.2025AAVantgard...aavantgardebio.com$141MItaly
22.09.2025Avenzo The...avenzotx.com$210MUnited Sta...
24.06.2022DEM Biopha...dembiopharma.com$70MUnited Sta...

Mentions in press and media 33

DateTitleDescription
08.04.2026Sidewinder Therapeutics: $137 Million Raised For Bispecific ADC Cancer TherapiesSidewinder Therapeutics, a biopharmaceutical company developing next-generation bispecific antibody-drug conjugates, announced the closing of an oversubscribed $137 million Series B financing round to advance its oncology pipeline into clin...
08.01.2026Mediar Therapeutics Secures $76M to Advance Fibrosis TherapiesMediar Therapeutics secured a substantial $76 million in Series B financing. This Boston-based biotechnology firm is advancing novel, first-in-class therapies to combat fibrosis. The funding fuels its clinical pipeline. Key programs include...
07.01.2026Mediar Therapeutics: $76 Million Series B Raised As Fibrosis Programs AdvanceMediar Therapeutics, a clinical-stage biotech developing first-in-class therapies designed to halt fibrosis, said it closed an oversubscribed $76 million Series B financing co-led by Amplitude Ventures and ICG as it advances a portfolio of ...
07.01.2026Mediar Therapeutics Raises $76M in Series B FinancingMediar Therapeutics, Inc., a Boston, MA-based clinical-stage biotechnology company advancing first-in-class therapies designed to halt fibrosis, raised $76m in Series B financing. The round was co-led by Amplitude Ventures and ICG, with par...
08.11.2025AAVantgarde Secures $141M for Groundbreaking Gene TherapiesAAVantgarde Bio closed a $141 million Series B round. This substantial funding propels gene therapy programs for inherited retinal diseases. Key targets: Stargardt disease and Usher Syndrome Type 1B. Both represent severe conditions with no...
07.11.2025AAVantgarde: $141 Million Series B Closed To Advance Clinical Programs For Stargardt Disease And Usher 1B SyndromeAAVantgarde Bio has closed a $141 million (€122 million) Series B financing to advance its lead clinical programs targeting inherited retinal diseases. The financing round was co-led by Schroders Capital, Atlas Venture, and Forbion, with pa...
06.11.2025AAVantgarde Closes $141M Series B FinancingAAVantgarde Bio, a Milan, Italy-based clinical-stage, biotechnology company developing therapies for inherited retinal diseases (IRDs), raised $141M in Series B funding. The round was led by Schroders Capital, as well as existing investors ...
03.10.2025Avenzo Therapeutics Secures $60 Million Series B to Advance Oncology BreakthroughsAvenzo Therapeutics secured $60 million in Series B funding. This propels their oncology pipeline. The San Diego biotech now totals $446 million raised. OrbiMed and SR One led the round. New investor Longwood Fund joined. Key existing backe...
01.10.2025Crystalys Therapeutics: $205 Million Series A Raised For Transforming Gout TreatmentCrystalys Therapeutics is a clinical-stage biopharmaceutical company dedicated to developing innovative therapies for gout, a condition characterized by high levels of uric acid in the blood that can lead to painful arthritis flare-ups. The...
30.09.2025Crystalys Therapeutics Raises in $205M Series A FundingCrystalys Therapeutics, a San Diego, CA-based clinical-stage biopharmaceutical company, raised $205M in Series A funding. The round was led by Novo Holdings, SR One and Catalys Pacific with participation from a broad syndicate of investors,...
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