Investor · Aspen, CO
William C. Haseltine, Phd
Open William in the network graph →Capital
$93.4M
across filings
Active
Mar 2023
to May 2025
Most-connected co-filers (59)
Jonathan W. Simons · Aspen, CO9 sharedShawn C. Tomasello · Aspen, CO5 sharedNishaad Ruparel · Arlington, VA5 sharedJay R. Soni · Seal Beach, CA4 sharedEdward J. Benz, Jr · Aspen, CO4 sharedShawn R. Tomasello · BOSTON, MA4 sharedSteve Gorlin · Destin, FL4 sharedJulia S. Cooper · Seal Beach, CA4 sharedBert W. O'Malley · Aspen, CO4 sharedRandall R. Kendrick · Dallas, TX4 sharedGretchen R. Kendrick · Dallas, TX4 sharedCarlos G. Vilhena · Scottsdale, AZ4 sharedParas P. Malde · Grand Cayman, Cayman Islands3 sharedDavid A. Wurtzbacher · Woodbridge, VA3 sharedTim Woolaver · Grand Cayman, Cayman Islands3 sharedLauren Taylor Wolfe · New York, NY3 sharedJonathan Bates · Hermosa Beach, CA3 sharedKevin Mein · Lafayette, CA3 sharedClifford C. Dasco, M.D · Aspen, CO3 sharedAndrew Saltoun · San Francisco, CA3 sharedDavid C. Lonard, Phd · Aspen, CO3 sharedJohn C. Thomas, Jr · Aspen, CO3 sharedErik S. Nelson · Atlanta, GA3 sharedShirlee Kingsley · Los Angeles, CA3 shared Recent filings (13)
CoRegen, Inc.Feb 2026 · 9 co-filers$13.5MCoRegen, Inc.May 2025 · 27 co-filers$62.6MCoRegen, Inc.May 2025 · 27 co-filers$62.6MBITMINE IMMERSION TECHNOLOGIES, INC.May 2025 · 23 co-filers$10.0MBITMINE IMMERSION TECHNOLOGIES, INC.Mar 2025 · 23 co-filers$2KBITMINE IMMERSION TECHNOLOGIES, INC.Mar 2025 · 23 co-filers$563KCoRegen, Inc.Feb 2025 · 29 co-filers$20.8MCoRegen, Inc.Feb 2025 · 29 co-filers$10.0MCoRegen, Inc.Feb 2025 · 29 co-filers$20.8MCoRegen, Inc.Feb 2025 · 29 co-filers$10.0MCollX Inc.Mar 2024 · 8 co-filers$2.5MPecan XC Opportunity Fund, LLCSep 2023 · 7 co-filers$1.0MXebec Holdings, LLCAug 2023 · 13 co-filers$10.0M15191 Sylmar QOF, LLCJun 2023 · 7 co-filers$8.3MCollX Inc.Mar 2023 · 10 co-filers$3.5MXebec Holdings, LLCMar 2023 · 13 co-filers$20.0M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See William in the interactive graph →