Investor · San Francisco, CA

Jack N. Altman

Open Jack in the network graph →

Filings

19

SEC Form D

Connections

117

co-filers

Capital

$2.0M

across filings

Active

Apr 2019

to Jan 2024

Most-connected co-filers (117)

W. Heath Hawk · Guaynabo, Puerto Rico7 shared Hinal Patel · Houston, TX5 shared Rami Rahim · SUNNYVALE, CA5 shared and Research Boston Management · Boston, MA5 shared Anne Delsanto · SUNNYVALE, CA5 shared Baker Brothers Life Sciences Capital, L.P · NEW YORK, NY5 shared Rahul Merchant · SUNNYVALE, CA5 shared Candace Chao · New York, NY5 shared Scott Kriens · SUNNYVALE, CA5 shared James Dolce · SUNNYVALE, CA5 shared Laurence W. Penn · Old Greenwich, CT5 shared Manoj Leelanivas · SUNNYVALE, CA5 shared Vasileios A. Sfyris · Alpharetta, GA5 shared Steven M. Greenspan · New York, NY5 shared Eric Carlson · Mountain View, CA5 shared Kevin Denuccio · SUNNYVALE, CA5 shared Brian Nottage · New York, NY5 shared Whitney Wilcox · New York, NY5 shared William Stensrud · SUNNYVALE, CA5 shared Lisa M. Walker · Carmel, IN5 shared Benjamin T. Eiler · Alpharetta, GA5 shared Daniel J. Sharkey · Oxford, CT5 shared Same PRCE Management LLC · Alpharetta, GA5 shared John Flodder · Riverwood, KY5 shared

Recent filings (19)

Alt Capital II, L.P.Sep 2025 · 4 co-filers$275.0M Alt Capital II, L.P.Sep 2025 · 4 co-filers$275.0M HighVista Private Equity X (Offshore), LPFeb 2024 · 7 co-filers$550.0M HighVista Private Equity X, LPFeb 2024 · 8 co-filers$550.0M Alt Capital I, L.P.Feb 2024 · 4 co-filers$150.0M Alt Capital I, L.P.Feb 2024 · 4 co-filers$150.0M EnteroBiotix LTDFeb 2024 · 19 co-filers JUNIPER NETWORKS INCJan 2024 · 42 co-filers$4.3M EnteroBiotix LTDAug 2023 · 17 co-filers GH Group, Inc.Jan 2023 · 11 co-filers$5.0M GH Group, Inc.Sep 2022 · 10 co-filers$55.0M EnteroBiotix LTDSep 2022 · 13 co-filers$13.0M JUNIPER NETWORKS INCJan 2022 · 41 co-filers$4.3M Jack Altman Fund II, L.P.Oct 2021 · 4 co-filers$65.0M Jack Altman Holdings I, L.P.Apr 2021 · 5 co-filers$2.0M JUNIPER NETWORKS INCJan 2021 · 44 co-filers$4.3M Jack Altman Fund, L.P.Dec 2020 · 5 co-filers$20.0M JUNIPER NETWORKS INCNov 2020 · 44 co-filers$18.1M DeepGreen Metals Inc.Mar 2020 · 20 co-filers$668K JUNIPER NETWORKS INCApr 2019 · 40 co-filers$19.1M DeepGreen Metals Inc.Apr 2019 · 20 co-filers$5.0M

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