Ledger.
Investor · NEW YORK, NY

Felix Baker

Open Felix in the network graph →
Filings
17
SEC Form D
Connections
56
co-filers
Capital
$4.2B
across filings
Active
Sep 2021
to Oct 2025

Most-connected co-filers (56)

Julian Baker · NEW YORK, NY11 sharedSyed Q. Hussain · Glen Allen, VA7 sharedScott Boyer · Prosper, TX7 sharedMichael P. Dake · Salt Lake City, UT7 sharedJeff M. Seraphine · Nashville, TN7 sharedBaker Brothers Life Sciences Capital, L.P · NEW YORK, NY4 sharedIliaz Valiullin · Dover, DE4 sharedBaker Brothers Life Sciences Capital (Gp), Llc · NEW YORK, NY4 sharedBaker Brothers Life Sciences Capital, L.P · New York, NY4 sharedJames R. Moreau · Northampton, MA4 sharedGary S. Crittenden · SALT LAKE CITY, UT4 sharedBaker Brothers Life Sciences Capital (Gp), Llc · New York, NY4 sharedGeneral Partner of the General Partner Baker Brothers Life Sciences Capital (GP), LLC · NEW YORK, NY4 sharedBaker Brothers Life Sciences Capital, L.P · NEW YORK, NY4 sharedJulia S. Vander Ploeg · SALT LAKE CITY, UT4 sharedBaker Brothers Life Sciences Capital (Gp), Llc · NEW YORK, NY4 sharedBrian Finn · New York, NY3 sharedLeon Hirth · New York, NY3 sharedVictor A. Murray · Grand Cayman, Cayman Islands3 sharedSteve Shulman · Boston, MA3 sharedJoseph D. Pennington · Prince George, VA3 sharedDC Energy Management LP · McLean, VA3 sharedRubina N. Toorawa · Ebene, O43 sharedLawrence Leisure · CHICAGO, IL3 shared

Recent filings (17)

Baker Brothers Life Sciences LPOct 2025 · 8 co-filersHCIF Offshore LPOct 2025 · 10 co-filersBaker Brothers Life Sciences LPOct 2025 · 8 co-filersWaveGuide CorpMay 2025 · 17 co-filers$6.5MBaker Brothers Life Sciences LPAug 2024 · 10 co-filersHCIF Offshore LPAug 2024 · 10 co-filersWaveGuide CorpMay 2024 · 17 co-filers$4.3MBaker Brothers Life Sciences LPJul 2023 · 11 co-filersHCIF Offshore LPJul 2023 · 11 co-filersBaker Brothers Life Sciences LPJul 2022 · 11 co-filersHCIF Offshore LPJul 2022 · 11 co-filersInnovius Capital Capella I, L.P.Jan 2022 · 4 co-filers$11.0MWaveguide CorpSep 2021 · 16 co-filers$5.0MInnovius Capital Fund I, L.P.Sep 2021 · 5 co-filers$200.0MSlipChip CorpOct 2017 · 9 co-filers$30.0MSlipChip CorpOct 2017 · 9 co-filers$30.0MSlipChip CorpMar 2015 · 5 co-filers$30.0MSlipChip CorpMar 2015 · 5 co-filers$30.0MSlipChip CorpAug 2013 · 2 co-filers$5.0MSEATTLE GENETICS INC /WAJun 2009 · 17 co-filers$11.5M

Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Felix in the interactive graph →