Investor · Westlake, OH

William Trainor

Open William in the network graph →

Filings

22

SEC Form D

Connections

51

co-filers

Capital

$74.0M

across filings

Active

Jan 2022

to Sep 2025

Most-connected co-filers (51)

Wayne Wallace · Westlake, OH10 shared Ryan Caldbeck · San Francisco, CA5 shared Grace Lanni · Cedar Park, TX4 shared Jo Price · Edmonton, Alberta, Canada4 shared Jeremy Strautman · Edmonton, Alberta, Canada4 shared Nicholas Brown · New York, NY4 shared Victor Quinn · Short Hills, NJ4 shared Brian Testo · Edmonton, Alberta, Canada4 shared John Watters · San Francisco, CA4 shared Jim Greig · Edmonton, Alberta, Canada4 shared Solomon Pillersdorf · Edmonton, Alberta, Canada4 shared Ronald D. Ormand · Denver, CO3 shared Bill Trainor · Independence, OH3 shared Tina Hodges · NASHVILLE, TN3 shared Jirka Rysavy · Louisville, CO3 shared Patrick K. Conroy · Nashville, TN3 shared Peter N. Benz · Boca Raton, FL3 shared Klaus Svendsen · Grand Duchy of Luxembourg, Luxembourg3 shared Michael Hodges · NASHVILLE, TN3 shared Seth C. Blackwell · San Antonio, TX3 shared Calvin Lee · Singapore, U02 shared Jake Ireland · San Francisco, CA2 shared Wendell Lim · San Francisco, CA2 shared Michael D. Bergman · Greenwood Village, CO2 shared

Recent filings (22)

MCPF III Opportunity Fund, L.P.Sep 2025 · 5 co-filers$10.0M GRIZZLY DISCOVERIES INC.Aug 2024 · 14 co-filers$101K GRIZZLY DISCOVERIES INC.Aug 2024 · 14 co-filers$251K GRIZZLY DISCOVERIES INC.Jan 2024 · 14 co-filers$101K GRIZZLY DISCOVERIES INC.Aug 2023 · 13 co-filers$101K Mutual Capital Partners Fund IV-Q, L.P.Aug 2023 · 5 co-filers$50.0M Mutual Capital Partners Fund IV, L.P.Aug 2023 · 5 co-filers$50.0M AF HoldCo, LLCApr 2017 · 8 co-filers Mutual Capital Partners Fund III-Q, L.P.Mar 2017 · 5 co-filers$50.0M Mutual Capital Partners Fund III, L.P.Mar 2017 · 5 co-filers$50.0M AF HoldCo, LLCFeb 2017 · 8 co-filers$1.0M Cell Design Labs, Inc.Jun 2016 · 27 co-filers$4.0M AF HoldCo, LLCJun 2016 · 8 co-filers Cell Design Labs, Inc.Jun 2016 · 27 co-filers$22.9M enosiX, Inc.Aug 2014 · 5 co-filers$2.7M

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