Investor · Aliso Viejo, CA

Jonathan D. Root

Open Jonathan in the network graph →

Filings

34

SEC Form D

Connections

98

co-filers

Capital

$1.2B

across filings

Active

Oct 2015

to Dec 2025

Most-connected co-filers (98)

Donald Milder · Aliso Viejo, CA19 shared Paul Lubock · Aliso Viejo, CA18 shared Rick Lewis · LOS ANGELES, CA13 shared Casey D. Tansey · Menlo Park, CA13 shared Andrew B. Weisman · Boston, MA9 shared Robert Hinaman · Oklahoma City, OK9 shared Steven M. Krausz · Menlo Park, CA8 shared Robert Rosenbluth · Aliso Viejo, CA8 shared Frances F. Reid · Cambridge, MA7 shared Stacy L. Sur · Honolulu, HI7 shared an Arizona limited liability company Quyp Development Services LLC · Goodyear, AZ7 shared Samuel A. Hoffman · New York, NY7 shared Stephan Sakhai · New York, NY7 shared Lindsey B. Bolger · Waterbury Center, VT7 shared Jeremy S. Hall · SCOTTSDALE, AZ7 shared Nancy G. Everett · Cambridge, MA7 shared Carol C. Gallagher · Carlsbad, CA6 shared Lynne R. Rollins · SAN DIEGO, CA6 shared Alexander G. Dickinson · Carlsbad, CA6 shared Gautam Shah · San Francisco, CA6 shared Daniel Levine · Princeton, NJ6 shared Aditya J. Rajagopal · Carlsbad, CA6 shared Brian Cox · Aliso Viejo, CA6 shared Mogens Smed · Calgary, Alberta, Canada6 shared

Recent filings (34)

Okami Medical, Inc.Dec 2025 · 19 co-filers$46.7M U.S. Venture Partners Select Fund I-A, L.P.Feb 2025 · 5 co-filers$10.0M U.S. Venture Partners Select Fund I-A, L.P.Feb 2025 · 5 co-filers$10.0M U.S. Venture Partners Select Fund I, L.P.Oct 2024 · 6 co-filers$100.0M U.S. Venture Partners Select Fund I, L.P.Oct 2024 · 6 co-filers$100.0M Okami Medical, Inc.Sep 2024 · 13 co-filers$30.0M Okami Medical, Inc.Jan 2024 · 14 co-filers$6.1M Okami Medical, Inc.Nov 2023 · 14 co-filers$6.1M U.S. Venture Partners XIII, L.P.Dec 2022 · 7 co-filers$400.0M U.S. Venture Partners XIII, L.P.Dec 2022 · 7 co-filers$400.0M Keynes Dynamic Beta Strategy (Offshore) Fund LtdJun 2022 · 8 co-filers U.S. Venture Partners XIII-A, L.P.Feb 2022 · 7 co-filers$30.0M U.S. Venture Partners XIII-A, L.P.Feb 2022 · 7 co-filers$30.0M U.S. Venture Partners XIII, L.P.Feb 2022 · 7 co-filers$350.0M U.S. Venture Partners XIII, L.P.Feb 2022 · 7 co-filers$350.0M Okami Medical, Inc.Sep 2021 · 14 co-filers$7.5M Keynes Dynamic Beta Strategy (Offshore) Fund LtdJun 2021 · 8 co-filers theMaven, Inc.Nov 2020 · 29 co-filers$20.0M theMaven, Inc.Sep 2020 · 29 co-filers$10.0M theMaven, Inc.Aug 2020 · 29 co-filers$6.0M Keynes Dynamic Beta Strategy (Offshore) Fund LtdJun 2020 · 8 co-filers Okami Medical, Inc.Jun 2020 · 14 co-filers$7.2M theMaven, Inc.Oct 2019 · 29 co-filers$20.0M U.S. Venture Partners XII-A, L.P.Jul 2019 · 4 co-filers$16.3M Keynes Multi Asset Value Fund LtdJun 2019 · 8 co-filers

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