Investor · San Diego, CA

Brent J. Warner

Open Brent in the network graph →

Filings

2

SEC Form D

Connections

19

co-filers

Capital

$57.9M

across filings

Active

Aug 2023

to Dec 2025

Most-connected co-filers (19)

Janwillem Naesens · San Francisco, CA1 shared Laura M. Brass · Cambridge, MA1 shared Jeffery J. Kelly · SAN DIEGO, CA1 shared Saoussen J. Ben Halima · SAN DIEGO, CA1 shared Hank M. Petrassi · SAN DIEGO, CA1 shared Tim J. Lohoff · SAN DIEGO, CA1 shared Rafael J. Amado · San Diego, CA1 shared Kristin J. Yarema · San Diego, CA1 shared Charles M. Baum · San Diego, CA1 shared Marcea B. Lloyd · San Diego, CA1 shared Cynthia M. Collins · San Diego, CA1 shared Luke M. Corning · San Diego, CA1 shared Johanna M. Mylet · San Diego, CA1 shared Harry J. Leonhardt · San Diego, CA1 shared Shelley Chu · San Diego, CA1 shared Helen Kim · Boston, MA1 shared Edward Hurwitz · Waltham, MA1 shared Mark Gergen · San Diego, CA1 shared John Schmid · Hartford, CT1 shared

Recent filings (2)

Protego Biopharma, Inc.Dec 2025 · 19 co-filers$130.4M Protego Biopharma, Inc.Dec 2025 · 19 co-filers$130.4M Poseida Therapeutics, Inc.Aug 2023 · 21 co-filers$25.0M Poseida Therapeutics, Inc.Aug 2023 · 21 co-filers$25.0M

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