Investor · Boston, MA

Jeffrey D. Leiden

Open Jeffrey in the network graph →

Filings

36

SEC Form D

Connections

225

co-filers

Capital

$428.4M

across filings

Active

Apr 2022

to Dec 2025

Most-connected co-filers (225)

Gary D. Glick · Boston, MA12 shared Tim Kelly · Truckee, CA11 shared J.W. Ransom James · ATLANTA, GA9 shared Ben A. Guill · Houston, TX8 shared Christopher Adlam · MANHATTAN BEACH, CA6 shared Darin Derenzis · MANHATTAN BEACH, CA6 shared Kathleen Edler · MANHATTAN BEACH, CA6 shared Jill D. Carroll · Boston, MA6 shared Valerie D. Odegard · Boston, MA6 shared Olivia J. Lew · Rochester, NY6 shared W. T. Amick · DURHAM, NC6 shared Gerard Bisignano · MANHATTAN BEACH, CA6 shared Carl D. Gordon · Boston, MA6 shared Richard Edler · MANHATTAN BEACH, CA6 shared Klaus Veitinger · Newark, NJ5 shared Roxanne T. Bennett · Chicago, IL4 shared Allan M. Holt · Washington, Washington, D.C.4 shared Paul J. Sagan · Rochester, NY4 shared Nicholas J. Conn · Rochester, NY4 shared David D. Stevens · Memphis, TN4 shared David Castaldi · Chestnut Hill, MA4 shared Lorence M. Kim · Boston, MA4 shared Dale A. Sander · Durham, NC4 shared Austin Mcchord · Norwalk, CT4 shared

Recent filings (36)

Odyssey Therapeutics, Inc.Dec 2025 · 33 co-filers$214.0M Odyssey Therapeutics, Inc.Dec 2025 · 33 co-filers$214.0M RLTY LLCJul 2025 · 17 co-filers$98K RLTY LLCMar 2025 · 17 co-filers$1.0M Odyssey Therapeutics, Inc.Aug 2024 · 24 co-filers$121.1M Odyssey Therapeutics, Inc.Aug 2024 · 24 co-filers$121.1M RLTY LLCApr 2024 · 14 co-filers$8.5M RLTY LLCFeb 2024 · 14 co-filers$8.5M RLTY LLCJan 2024 · 14 co-filers$8.5M Casana Care, Inc.Jan 2024 · 25 co-filers$40.0M RLTY LLCDec 2023 · 14 co-filers$8.5M Odyssey Therapeutics, Inc.Dec 2023 · 19 co-filers$106.0M Odyssey Therapeutics, Inc.Dec 2023 · 19 co-filers$106.0M Odyssey Therapeutics, Inc.Oct 2022 · 11 co-filers$174.9M Odyssey Therapeutics, Inc.Oct 2022 · 11 co-filers$174.9M CPG Carlyle Commitments Master Fund, LLCJun 2022 · 42 co-filers CPG Carlyle Commitments Fund, LLCJun 2022 · 42 co-filers Walleye Opportunities Fund LtdJun 2022 · 21 co-filers Hannah Grey Ventures I, LPJun 2022 · 9 co-filers$51.6M Sea Hawk Multi-Strategy Fund Ltd.Apr 2022 · 17 co-filers Walleye Opportunities Fund LtdApr 2022 · 18 co-filers Casana Care, Inc.Jan 2022 · 25 co-filers$30.0M ORtelligence, Inc.Feb 2021 · 14 co-filers$6.0M Hannah Grey Ventures I, LPFeb 2021 · 9 co-filers$25.0M ORtelligence, Inc.Jan 2021 · 14 co-filers$5.0M

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