Investor · San Francisco, CA

Jack Altman

Open Jack in the network graph →

Filings

38

SEC Form D

Connections

85

co-filers

Capital

$61.2M

across filings

Active

May 2016

to Jan 2026

Most-connected co-filers (85)

Landon A. Gibbs · Nashville, TN13 shared Brad Gerstner · Boston, MA13 shared Daniel J. Gillis · Boston, MA12 shared Clough Capital Partners L.P · Boston, MA12 shared Charles I. Clough, Jr · Boston, MA12 shared Clarkson Jones · Atlanta, GA12 shared Clough Capital Partners L.P · Boston, MA12 shared Eric Koslow · San Francisco, CA10 shared Jason Pressman · New York, NY8 shared Miles Grimshaw · San Francisco, CA6 shared Jacob P. Hallauer · Fort Collins, CO6 shared Eli S. Kent · Marblehead, MA6 shared Clough Associates, Llc · Boston, MA5 shared Clough Associates, Llc · Boston, MA5 shared Patrick E. Mockler · Baton Rouge, LA5 shared John C. Banks · Marown, Y85 shared Andrew D. Mclindon · Baton Rouge, LA5 shared Fayez K. Shamieh · Baton Rouge, LA5 shared Charles I. Clough, Jr · Boston, MA5 shared Jordan N. Barron · El Paso, TX5 shared Brian Marquardt · Seattle, WA5 shared Clough Associates, Llc · Boston, MA5 shared John E. Kowaleski · Boston, MA4 shared Katie Lachey · Dublin, OH3 shared

Recent filings (38)

Copilot Labs, Inc. \ DEJan 2026 · 2 co-filers$21.2M Antares Nuclear, Inc.Sep 2025 · 7 co-filers$79.5M Antares Nuclear, Inc.Sep 2025 · 7 co-filers$79.5M Clough Healthcare Offshore Fund, Ltd.Apr 2025 · 10 co-filers CLOUGH OFFSHORE FUND LTDApr 2025 · 10 co-filers Antares Nuclear, Inc.Oct 2024 · 3 co-filers$27.5M CLOUGH INVESTMENT PARTNERS II, L.P.Apr 2024 · 13 co-filers Clough Healthcare Offshore Fund, Ltd.Apr 2024 · 13 co-filers$26.1M Clough Healthcare Offshore Fund, Ltd.Apr 2023 · 13 co-filers$26.1M CLOUGH INVESTMENT PARTNERS II, L.P.Apr 2023 · 13 co-filers Clough Healthcare Offshore Fund, Ltd.Apr 2022 · 13 co-filers$26.1M CLOUGH INVESTMENT PARTNERS II, L.P.Apr 2022 · 13 co-filers Altimeter Growth Co-Invest II, L.P.Feb 2022 · 2 co-filers$30.4M Altimeter Growth Co-Invest III, L.P.Feb 2022 · 2 co-filers$20.1M Degree, Inc.Jan 2022 · 15 co-filers$175.0M Altimeter Growth Co-Invest I, L.P.Jan 2022 · 2 co-filers$20.2M Altimeter Growth Lincoln Fund II, L.P.Nov 2021 · 2 co-filers$105.8M Altimeter Growth Diablo Fund, L.P.Nov 2021 · 2 co-filers$30.0M Altimeter Growth Partners Fund VI, L.P.Sep 2021 · 2 co-filers$2.0B Altimeter Growth Hood Fund, L.P.Aug 2021 · 2 co-filers$25.1M Altimeter Growth Denali Fund, L.P.May 2021 · 2 co-filers$50.5M CLOUGH INVESTMENT PARTNERS II, L.P.Apr 2021 · 13 co-filers Clough Healthcare Offshore Fund, Ltd.Apr 2021 · 13 co-filers$26.1M Degree, Inc.Apr 2021 · 11 co-filers$60.5M Altimeter Growth Pacific Fund, L.P.Apr 2021 · 2 co-filers$30.7M

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