Investor · Los Angeles, CA

William D. De Laszlo

Open William in the network graph →

Filings

31

SEC Form D

Connections

196

co-filers

Capital

$153.6M

across filings

Active

Dec 2021

to Feb 2024

Most-connected co-filers (196)

Peter M. Carlton · Los Angeles, CA8 shared Thomas J. Deegan-Day · Los Angeles, CA8 shared Dorothy W. Day · Los Angeles, CA8 shared Lucinda D. Fournier · Los Angeles, CA8 shared Jonathan W. Day · Los Angeles, CA8 shared Howard M. Day, Jr · Los Angeles, CA8 shared Howard M. Day · Los Angeles, CA8 shared Robert M. Miller · Los Angeles, CA8 shared Richard J. Effress · La Jolla, CA7 shared Paolo Martini · Norfolk, VA5 shared William Frain · PEACHTREE CORNERS, GA5 shared Mady Mantha · Austin, TX5 shared Oakmont Corporation · Los Angeles, CA5 shared Steven M. Baum · Los Angeles, CA4 shared Matthew D. Drevlow · Los Angeles, CA4 shared Tyler Wenham · Washington, Washington, D.C.4 shared Damon P. De Laszlo · Los Angeles, CA4 shared Jeffery Sarrett · Denver, CO4 shared Raj Vazirani · New York, NY4 shared Twin Grove Capital LLC · Dover, DE4 shared Joe Biller · South San Francisco, CA4 shared Michael O. Strand · Seattle, WA3 shared Gregory L. Beckel · Seattle, WA3 shared Charles Lehman · Calabasas, CA3 shared

Recent filings (31)

Foothill Road, LPJan 2026 · 9 co-filers Perceptive Life Sciences Offshore Fund, Ltd.Jan 2026 · 1 co-filer PINNACLE WEST CAPITAL CORPDec 2025 · 48 co-filers Somera Road, LLCDec 2025 · 28 co-filers Somera Road, LLCDec 2025 · 28 co-filers Isadora Lane Partners, LLCMay 2025 · 30 co-filers Isadora Lane Partners, LLCMay 2025 · 30 co-filers Relevant Gold Corp.Mar 2025 · 20 co-filers$810K Foothill Road, LPJan 2025 · 28 co-filers Foothill Road, LPJan 2025 · 28 co-filers Perceptive Life Sciences Offshore Fund, Ltd.Jan 2025 · 5 co-filers PINNACLE WEST CAPITAL CORPJan 2025 · 57 co-filers Relevant Gold Corp.Jul 2024 · 20 co-filers$471K Sienna Way II, LLCFeb 2024 · 37 co-filers Relevant Gold Corp.Feb 2024 · 20 co-filers$201K Foothill Road, LPJan 2024 · 36 co-filers Foothill Road, LPJan 2024 · 36 co-filers Perceptive Life Sciences Offshore Fund, Ltd.Jan 2024 · 5 co-filers BORE Fourth Street, LLCJan 2024 · 13 co-filers$3.9M FUND ONE: BOSTON OMAHA BUILD FOR RENT LPJun 2023 · 10 co-filers$50.0M Clifton Way, LLCMar 2023 · 40 co-filers Sienna Way II, LLCFeb 2023 · 40 co-filers Hearme in 30 IncJan 2023 · 18 co-filers$750K Perceptive Life Sciences Offshore Fund, Ltd.Jan 2023 · 5 co-filers FUND ONE: BOSTON OMAHA BUILD FOR RENT LPJan 2023 · 10 co-filers$100.0M

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