Investor · Hamilton, Bermuda

Tomer Seifan

Open Tomer in the network graph →

Filings

12

SEC Form D

Connections

41

co-filers

Capital

$3.0B

across filings

Active

Dec 2022

to Dec 2025

Most-connected co-filers (41)

Benjamin Lawsky · Hamilton, Bermuda9 shared Richard Taylor · Hamilton, Bermuda7 shared Stone Ridge Holdings Group LP · New York, NY7 shared Ross Stevens · Hamilton, Bermuda5 shared Rei Chiang · Brooklyn, NY4 shared Michael C. Sapnar · Hamilton, Bermuda4 shared Mohamed Genead · Cambridge, MA4 shared Tarun Chitra · Brooklyn, NY4 shared Benjamin D. Pierson · New York, NY3 shared Delian Asparouhov · San Francisco, CA3 shared Kyu Jo · New York, NY3 shared Lee Linden · Seattle, WA3 shared Anthony L. Ludlow · Plano, TX3 shared Dennison Bertram · Brooklyn, NY3 shared Aleks Larson · Brooklyn, NY3 shared Robert K. Maloney · Newtown Square, PA3 shared Andrew Rebele · SEATTLE, WA2 shared Rezwan Manji · Scottsdale, AZ2 shared Michael Augins · Scottsdale, AZ2 shared Abhishek Trehan · St. Helier, Y92 shared Andy Sack · SEATTLE, WA2 shared Gordon Stephenson · SEATTLE, WA2 shared Thomas P. O'Hara · Austin, TX, TX2 shared Patricia L. Bakely · Philadelphia, PA2 shared

Recent filings (12)

Longtail Insurance Holdings Ltd.Dec 2025 · 5 co-filers Longtail Insurance Holdings Ltd.Dec 2024 · 7 co-filers Longtail Insurance Holdings Ltd.Dec 2023 · 5 co-filers HB Biotech, Inc.Dec 2022 · 1 co-filer$11.0M HB Biotech, Inc.Dec 2022 · 1 co-filer$11.0M Longtail Insurance Holdings Ltd.Dec 2022 · 5 co-filers Longtail Insurance Holdings Ltd.Dec 2021 · 13 co-filers Longtail Insurance Holdings Ltd.Sep 2021 · 13 co-filers$500.0M Longtail Insurance Holdings Ltd.Sep 2020 · 13 co-filers$500.0M BioPlx, Inc.Aug 2019 · 7 co-filers$1.6M FunJumping Inc.Aug 2019 · 13 co-filers$10.0M BioPlx, Inc.Jun 2019 · 11 co-filers$1.6M FunJumping Inc.Jun 2019 · 20 co-filers$10.0M

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