Investor · MILTON, MA

Robert G. Langer

Open Robert in the network graph →

Filings

18

SEC Form D

Connections

83

co-filers

Capital

$26.6M

across filings

Active

Apr 2021

to Sep 2025

Most-connected co-filers (83)

Rahul K. Dhanda · MILTON, MA14 shared Teymour Boutros-Ghali · Culver City, CA9 shared Carlo G. Traverso · Watertown, MA8 shared Carlo Giovanni S. Traverso · Watertown, MA6 shared Pete F. Futia · CHARLOTTE, NC6 shared Nick Stavros · Scottsdale, AZ4 shared David Godwin · Austin, TX4 shared Najib Khouri-Haddad · Austin, TX4 shared Brian J. Brady · Richmond, VA4 shared Frank V. Gorenc · Pasadena, CA4 shared Heather Gartin · San Francisco, CA4 shared Andrew Stein · Hoboken, NJ4 shared Thomas J. Farley · New York, NY4 shared Nancy Hu · New York, NY4 shared Ciro Donalek · Pasadena, CA4 shared Shahrokh Shabahang · Loma Linda, CA4 shared Jerome V. Josz · Pasadena, CA4 shared Marco G. Demiroz · Pasadena, CA4 shared Chris Harris · San Francisco, CA4 shared Brian V. Miller · Pasadena, CA4 shared Stanislav G. Djorgovski · Pasadena, CA4 shared Shay G. Badie · Pasadena, CA4 shared Michael Amori · Pasadena, CA4 shared Enda K. Fahy · Luxembourg, Luxembourg4 shared

Recent filings (18)

Hudson Single-Family Rental Fund L.P.Mar 2026 · 4 co-filers Commodore Capital Offshore Ltd.Feb 2026 · 7 co-filers Virtualitics, Inc.Sep 2025 · 30 co-filers$25.0M SYNTIS BIO, INC.Jul 2025 · 18 co-filers$26.5M SYNTIS BIO, INC.Jul 2025 · 18 co-filers$26.5M Hudson Single-Family Rental Fund L.P.Feb 2025 · 12 co-filers Commodore Capital Offshore Ltd.Feb 2025 · 22 co-filers SYNTIS BIO, INC.Jan 2025 · 14 co-filers$9.0M SYNTIS BIO, INC.Jan 2025 · 14 co-filers$9.0M Commodore Capital Offshore Ltd.Feb 2024 · 22 co-filers Virtualitics, Inc.Jul 2023 · 26 co-filers$42.4M Commodore Capital Offshore Ltd.Feb 2023 · 21 co-filers Nurikabe Feeder Fund I, LPFeb 2023 · 5 co-filers Nurikabe Fund I, LPFeb 2023 · 5 co-filers SYNTIS BIO, INC.Jan 2023 · 12 co-filers$15.4M Virtualitics, Inc.Dec 2022 · 26 co-filers$6.0M SYNTIS BIO, INC.Aug 2022 · 8 co-filers$11.2M CONCENTRIC PARTNERS I, LPSep 2021 · 10 co-filers$91.2M CONCENTRIC PARTNERS I, LPApr 2021 · 10 co-filers$87.5M Virtualitics, Inc.Apr 2021 · 26 co-filers$20.9M

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