Investor · Fremont, CA

Kirk Nielsen

Open Kirk in the network graph →

Filings

84

SEC Form D

Connections

293

co-filers

Capital

$159.0M

across filings

Active

Sep 2011

to Dec 2025

Most-connected co-filers (293)

Timothy Hauch · Minnetonka, MN39 shared Thomas K. Weldon · Minnetonka, MN39 shared Bonnie Labosky · Minnetonka, MN39 shared William K. Abraham · Minnetonka, MN39 shared Wilfred Jaeger · Red Bank, NJ39 shared Vincent Carter · Lake Charles, LA36 shared B. K. Johnson · Minnetonka, MN26 shared David M. Roshak · Denver, CO25 shared Daniel D. Burns · Denver, CO25 shared Mark E. Konen · Radnor, PA20 shared Michael J. Burns · Greensboro, NC15 shared C. Phillip Elam, Iii · Radnor, PA15 shared Randall H. Freitag · Radnor, PA15 shared Dennis R. Glass · Radnor, PA15 shared Keith J. Ryan · Fort Wayne, IN15 shared Ellen J. Cooper · Radnor, PA15 shared Brian Cox · Aliso Viejo, CA12 shared Frederick J. Crawford · Radnor, PA10 shared Leonard Kubicek · Frisco, TX10 shared Rise C. Taylor · Fort Wayne, IN10 shared Paul Lubock · Aliso Viejo, CA9 shared Donald Milder · Aliso Viejo, CA9 shared Jonathan Root · San Francisco, CA9 shared Richard A. Emmitt · Basking Ridge, NJ8 shared

Recent filings (84)

Okami Medical, Inc.Dec 2025 · 19 co-filers$46.7M Okami Medical, Inc.Dec 2025 · 19 co-filers$46.7M VI1, Inc.Aug 2025 · 9 co-filers$25.0M VI1, Inc.Aug 2025 · 9 co-filers$25.0M iVEAcare, Inc.Apr 2024 · 15 co-filers$27.6M iVEAcare, Inc.Apr 2024 · 15 co-filers$27.6M Artelon, Inc.Jun 2023 · 15 co-filers$30.0M Artelon, Inc.Jun 2023 · 15 co-filers$30.0M Monteris Medical US, Inc.Sep 2022 · 14 co-filers$13.7M Monteris Medical US, Inc.Sep 2022 · 14 co-filers$13.7M Moxe Health CorpJun 2022 · 13 co-filers$30.0M Moxe Health CorpJun 2022 · 13 co-filers$30.0M SpyGlass Ophthalmics, Inc.Jan 2021 · 14 co-filers$37.5M SpyGlass Ophthalmics, Inc.Jan 2021 · 14 co-filers$37.5M Monteris Medical US, Inc.Sep 2020 · 16 co-filers$30.0M Monteris Medical US, Inc.Sep 2020 · 16 co-filers$30.0M Monteris Medical US, Inc.Mar 2020 · 23 co-filers$6.1M Monteris Medical US, Inc.Mar 2019 · 23 co-filers$12.2M Monteris Medical US, Inc.Jan 2019 · 23 co-filers$17.2M Covenant Surgical Holdings CorpOct 2018 · 23 co-filers Spacebar, LLCJun 2018 · 5 co-filers$1.5M NUVAIRA, INC.May 2018 · 19 co-filers$8.0M Inari Medical, Inc.Apr 2018 · 18 co-filers$27.0M Respicardia, Inc.Dec 2017 · 19 co-filers$40.0M Covenant Surgical Holdings CorpOct 2017 · 23 co-filers$3.5M

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