Investor · San Francisco, CA

Howard Hartenbaum

Open Howard in the network graph →

Filings

56

SEC Form D

Connections

191

co-filers

Capital

$312.2M

across filings

Active

Feb 2011

to Mar 2022

Most-connected co-filers (191)

David D. Hornik · Menlo Park, CA15 shared John D. Johnston · MENLO PARK, CA11 shared Vivek B. Mehra · Menlo Park, CA11 shared David Marquardt · Menlo Park, CA11 shared Bob Hernandez · San Francisco, CA7 shared Quinn Barton · San Francisco, CA7 shared Joe Kraus · San Francisco, CA7 shared Shelby Clark · San Francisco, CA7 shared Andre Haddad · San Francisco, CA7 shared Kerry Champion · San Francisco, CA7 shared Brian Ascher · Palo Alto, CA6 shared Jennifer Zeszut · Santa Cruz, CA6 shared Alex Benn · San Francisco, CA6 shared Paulo Lemann · Grand Cayman, Cayman Islands5 shared Eric Carlborg · New York, NY5 shared Jason A. Cheng · Hong Kong, Hong Kong5 shared Ivor R. Orchard · Hong Kong, Hong Kong5 shared Derek H. Buntain · George Town, Grand Cayman, Cayman Islands5 shared Douglas Dougherty · Cambridge, United Kingdom5 shared David Gelobter · New York, NY5 shared Timothy L. Carter · Minneapolis, MN5 shared Martin S. Lang · Grand Cayman, Cayman Islands5 shared Andrew C. Rappaport · San Francisco, CA5 shared Sarah Gordon Wild · Grand Cayman, Cayman Islands5 shared

Recent filings (56)

Pagaya Opportunity Onshore Feeder Fund I, LPOct 2025 · 14 co-filers Pagaya Opportunity Offshore Feeder Fund I, LPOct 2025 · 14 co-filers Pagaya Smartresi Fund II (UST) Feeder LPJul 2025 · 14 co-filers Pagaya Smartresi Fund II (QF) Feeder LPJul 2025 · 14 co-filers Turo Inc.Mar 2022 · 37 co-filers$35.2M Turo Inc.Mar 2022 · 37 co-filers$35.2M MyFlickList, Inc.Mar 2022 · 5 co-filers$4.1M MyFlickList, Inc.Mar 2022 · 5 co-filers$4.1M MyFlickList, Inc.Jan 2020 · 7 co-filers$6.9M MyFlickList, Inc.Jan 2020 · 7 co-filers$6.9M Turo Inc.Oct 2019 · 21 co-filers$291.5M Turo Inc.Oct 2019 · 21 co-filers$291.5M Turo Inc.Apr 2018 · 28 co-filers$5.0M Beckon, Inc.Jan 2017 · 12 co-filers$15.0M UNIVFY Inc.Apr 2016 · 8 co-filers$6.0M RelayRides, Inc.Dec 2015 · 13 co-filers$46.6M RelayRides, Inc.Dec 2015 · 13 co-filers$46.6M August Capital Strategic Partners VII, L.P.Jun 2015 · 12 co-filers$5.5M Waveseer of Oregon, LLCJun 2015 · 8 co-filers$1.0M UNIVFY Inc.Apr 2015 · 8 co-filers$1.4M Beckon, Inc.Feb 2015 · 12 co-filers$13.8M August Capital VII, L.P.Jan 2015 · 13 co-filers$450.0M Hey Wordy, LLCJan 2015 · 8 co-filers$1.5M Hey Wordy, LLCOct 2014 · 8 co-filers$1.5M RiceBran TechnologiesOct 2014 · 20 co-filers$8.0M

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