Investor · San Diego, CA

Neil Josephson

Open Neil in the network graph →

Filings

13

SEC Form D

Connections

42

co-filers

Capital

$194.4M

across filings

Active

Jul 2022

to Nov 2025

Most-connected co-filers (42)

Evan Rachlin · San Diego, CA4 shared Fred Manby · San Diego, CA4 shared Jishnu Bhattacharjee · San Francisco, CA4 shared Kurt Von Emster · MENLO PARK, CA4 shared Sandra E. Mackay · Vancouver, British Columbia, Canada4 shared Todd E. Hilditch · Vancouver, British Columbia, Canada4 shared Christina Blacker · Vancouver, British Columbia, Canada4 shared R. Jacob Vogelstein · Bethesda, MD4 shared Edward Rothschild · Seattle, WA4 shared Bradley Shepard · Nashville, TN4 shared Jon Myers · Charlottesville, VA4 shared John R. Howard · Dallas, TX4 shared Pat S. Bolin · Dallas, TX4 shared Darcy E. Higgs · Vancouver, British Columbia, Canada4 shared William Rastetter · San Diego, CA4 shared Thomas Miller · San Diego, CA4 shared John E. E. Larson · Vancouver, British Columbia, Canada3 shared Paul Brogan · Luxembourg, Luxembourg3 shared Tabbert Teng · San Diego, CA3 shared Robert F. Fleishauer · Hampton, VA3 shared Christophe Seywert · Grand Duchy of Luxembourg, Luxembourg2 shared Dominique Meyer · San Diego, CA2 shared Todd Hylton · San Diego, CA2 shared Michael S. Trachtenberg · Philadelphia, PA2 shared

Recent filings (13)

Iambic Therapeutics, Inc.Nov 2025 · 31 co-filers$125.0M Iambic Therapeutics, Inc.Nov 2025 · 31 co-filers$125.0M Big B CorpOct 2025 · 2 co-filers Big B CorpAug 2025 · 2 co-filers$300K Big B CorpMar 2025 · 2 co-filers$3.2M Big B CorpJun 2024 · 2 co-filers Iambic Therapeutics, Inc.Jun 2024 · 26 co-filers$50.0M Iambic Therapeutics, Inc.Jun 2024 · 26 co-filers$50.0M Iambic Therapeutics, Inc.May 2024 · 26 co-filers$38.0M Iambic Therapeutics, Inc.May 2024 · 26 co-filers$38.0M Iambic Therapeutics, Inc.Apr 2024 · 26 co-filers$38.0M Iambic Therapeutics, Inc.Apr 2024 · 26 co-filers$38.0M Rocket Co-Invest, SLPJan 2024 · 8 co-filers GLE Investors, SLPNov 2023 · 7 co-filers Limar AI Inc.Nov 2023 · 7 co-filers$3.3M Volta Investments, SLPAug 2022 · 8 co-filers Limar AI Inc.Jul 2022 · 5 co-filers$1.3M

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