Ledger.
Investor · Bridgewater, NJ

Jason Hafler

Open Jason in the network graph →
Filings
19
SEC Form D
Connections
130
co-filers
Capital
$196.4M
across filings
Active
Jun 2017
to Oct 2025

Most-connected co-filers (130)

Charles Zuker · San Diego, CA7 sharedPeter Hirth · Las Vegas, NV6 sharedMichael M. Weiner · London, United Kingdom6 sharedSteven J. Cornelius · CLEVELAND, OH4 sharedRobert K. Deveer · London, United Kingdom4 sharedPaul J. Ruflin · CLEVELAND, OH4 sharedMark E. Masters · Mansfield, OH4 sharedKai K. Gebauer · London, United Kingdom4 sharedWilliam J. Leimkuehler · CLEVELAND, OH4 sharedIssam J. Nemeh · CLEVELAND, OH4 sharedWilliam K. Shen · SOLANA BEACH, CA4 sharedJeenjoo Kang · San Francisco, CA3 sharedMarcus Boehm · Minneapolis, MN3 sharedAndrew Schwab · Pleasanton, CA3 sharedKevin Raidy · New York, NY3 sharedKathleen S. Glaub · San Mateo, CA3 sharedWilliam F. Burge, Iii · Houston, TX2 sharedAsif M. Dakri · Houston, TX2 sharedAlain D. Baron · San Diego, CA2 sharedEric D. Moessinger · Boston, MA2 sharedJason A. Kaslow · New York, NY2 sharedAbel Godfrey · Luxembourg, Luxembourg2 sharedGilbert G. Schneider · VANCOUVER, British Columbia, Canada2 sharedJulius Knowles · Cambridge, MA2 shared

Recent filings (19)

Star Therapeutics LLCOct 2025 · 24 co-filers$125.0MStar Therapeutics LLCOct 2025 · 24 co-filers$125.0MCharacter Biosciences, Inc.Sep 2025 · 15 co-filers$19.6MCharacter Biosciences, Inc.Sep 2025 · 15 co-filers$19.6MAbcuro, Inc.Feb 2025 · 15 co-filers$200.0MAbcuro, Inc.Feb 2025 · 15 co-filers$200.0MAbcuro, Inc.Aug 2023 · 15 co-filers$199.5MAbcuro, Inc.Aug 2023 · 15 co-filers$199.5MEscient Pharmaceuticals IncNov 2022 · 19 co-filers$120.0MEscient Pharmaceuticals IncNov 2022 · 19 co-filers$120.0MMatchpoint Therapeutics Inc.Oct 2022 · 7 co-filers$70.0MMatchpoint Therapeutics Inc.Oct 2022 · 7 co-filers$70.0MIcosavax, Inc.Apr 2021 · 21 co-filers$99.7MIcosavax, Inc.Apr 2021 · 21 co-filers$99.7MAbcuro, Inc.Jan 2021 · 22 co-filers$42.0MAbcuro, Inc.Jan 2021 · 22 co-filers$42.0MEscient Pharmaceuticals IncSep 2020 · 26 co-filers$77.5MEscient Pharmaceuticals IncSep 2020 · 26 co-filers$75.0MBiolectrics LLCMay 2020 · 11 co-filers$4.0MIcosavax, Inc.Oct 2019 · 17 co-filers$51.0MIcosavax, Inc.Oct 2019 · 17 co-filers$51.0MWINDWARD ON THE RIVER, LPAug 2019 · 14 co-filers$19.3MBiolectrics LLCJun 2019 · 14 co-filers$2.1MWellesley Rehoboth, LPJun 2019 · 21 co-filers$8.5MBiolectrics LLCJun 2019 · 11 co-filers$1.5M

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