Investor · Boulder, CO

Jack Ball

Open Jack in the network graph →

Filings

50

SEC Form D

Connections

239

co-filers

Capital

$164.4M

across filings

Active

Apr 2013

to Apr 2024

Most-connected co-filers (239)

Janel Fillinger · Salt Lake City, UT20 shared Eyas Raddad · Carmel, IN20 shared Deveron S. Smith · Columbia, SC17 shared Michael Packman · Jericho, NY17 shared Roger Kemble · Durham, NC15 shared Doug Kahlenbeck · Carmel, IN15 shared Eric Pelfrey · Fort Worth, TX15 shared Bruce Thayer · Seattle, WA15 shared Joseph Manca · Bellevue, WA15 shared K. C. Anderson · Austin, TX15 shared Sureel Choksi · Santa Clara, CA14 shared Jennifer G. Rohleder · Columbia, SC14 shared Raymond G. Bolton · Columbia, SC14 shared Jim Barry · Dublin, Ireland7 shared Kenneth A. Hood · San Diego, CA7 shared David Blumer · New York, NY7 shared Andrew Jost · Longmont, CO7 shared Charles Park · New York, NY7 shared Mark Florian · Greenwich, CT5 shared William Alaynick · San Diego, CA5 shared Walter Young · Ann Arbor, MI5 shared Todd Slattery · New York, NY5 shared Alexander Herzick · Salt Lake City, UT5 shared Joe Keegan · Salt Lake City, UT5 shared

Recent filings (50)

E-Health Partners, Inc.Sep 2025 · 8 co-filers$9.1M KromaTiD, Inc.Jul 2025 · 20 co-filers$3.8M KromaTiD, Inc.Jul 2025 · 17 co-filers$5.0M KromaTiD, Inc.Jul 2025 · 20 co-filers$3.8M KromaTiD, Inc.Jul 2025 · 17 co-filers$5.0M GEORGIA BANKING CO INCApr 2025 · 48 co-filers$1.5M Research Park Capital, LLCAug 2024 · 5 co-filers$909K Carterra, Inc.Apr 2024 · 11 co-filers$5.0M Carterra, Inc.Apr 2024 · 11 co-filers$5.0M KromaTiD, Inc.Jan 2024 · 15 co-filers$4.2M KromaTiD, Inc.Jan 2024 · 15 co-filers$4.2M GEORGIA BANKING CO INCMay 2023 · 40 co-filers$27.2M Greenbrier Capital Partners, LLCMay 2023 · 5 co-filers$1.2M NanoCellect Biomedical, Inc.Aug 2021 · 21 co-filers$20.0M NanoCellect Biomedical, Inc.Aug 2021 · 21 co-filers$20.0M Sio Partners Offshore, LtdMar 2021 · 10 co-filers GEPIF III Coyote Investco L.P.Mar 2021 · 16 co-filers Carterra, Inc.Dec 2020 · 17 co-filers$8.1M Cytek BioSciences, Inc.Nov 2020 · 13 co-filers$120.0M Cytek BioSciences, Inc.Nov 2020 · 13 co-filers$120.0M Carterra, Inc.Oct 2020 · 17 co-filers$7.0M BIS Brazos Infrastructure Fund, L.P.Aug 2020 · 10 co-filers BIS NYC Infrastructure Emerging Manager Opportunities Fund, L.P.Jul 2020 · 11 co-filers Sio Partners Offshore, LtdMar 2020 · 10 co-filers Carterra, Inc.Jan 2020 · 17 co-filers$6.0M

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