Ledger.
Investor · New York City, NY

Tom Callahan

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Filings
66
SEC Form D
Connections
214
co-filers
Capital
$96.4M
across filings
Active
Apr 2023
to Sep 2025

Most-connected co-filers (214)

Antonio Alredo Salgado · LONG BEACH, NY19 sharedMike Konstantas · PEMBROKE PARK, FL19 sharedTejasvi Desai · Baltimore, MD16 sharedAnna M. Bailey · Houston, TX16 sharedWellington Management Company LLP · Boston, MA16 sharedSarah Lee · Baltimore, MD16 sharedWellington Alternative Investments LLC · Boston, MA16 sharedWellington Management Investment, Inc · Boston, MA16 sharedSecondmarket Growth Management LLC · New York, NY15 sharedSydecar · Walnut, CA15 sharedSydecar · Claymont, DE15 sharedSydecar · Walnut, CA15 sharedSecondmarket Growth LLC · New York, NY15 sharedBrett Sagan · Claymont, DE14 sharedTuan Tiet · Claymont, DE11 sharedJoseph Flanagan · Redwood City, CA11 sharedGregory H. Eaton · Woodside, CA9 sharedSulu N. Mamdani · Menlo Park, CA8 sharedTransistor Ventures LLC · Rochester, MN7 sharedKim D. Westmoreland · Winston-Salem, NC6 sharedEvan H. Dreyfuss · Chicago, IL6 sharedWalter M. Clark · Chicago, IL6 sharedKeith Shores · El Segundo, CA6 sharedDamian Juric · Grand Cayman, Cayman Islands6 shared

Recent filings (66)

TV AI Fund III B a Series of SecondMarket Growth LLCDec 2025 · 13 co-filers$993KTV AI Fund III B a Series of SecondMarket Growth LLCDec 2025 · 13 co-filers$993KX1 Biotech Inc.Dec 2025 · 14 co-filers$300KFrontier Infra Fund a Series of SecondMarket Growth LLCNov 2025 · 12 co-filers$6.5MFrontier Infra Fund a Series of SecondMarket Growth LLCNov 2025 · 12 co-filers$6.5MRVC AI Fund IB, a Series of SecondMarket Growth, LLCOct 2025 · 14 co-filers$11.5MRVC AI Fund IB, a Series of SecondMarket Growth, LLCOct 2025 · 14 co-filers$11.5MRVC AI Fund I a Series of SecondMarket Growth LLCSep 2025 · 12 co-filers$20.0MRVC AI Fund I a Series of SecondMarket Growth LLCSep 2025 · 12 co-filers$20.0MLithium Africa Resources Corp.Sep 2025 · 26 co-filers$506KRC SA Discovery I, a Series of SecondMarket Growth, LLCSep 2025 · 14 co-filers$10.6MWPX Fund IV July 2025, a Series of SecondMarket Growth, LLCSep 2025 · 14 co-filers$4.4MRC SA Discovery I, a Series of SecondMarket Growth, LLCSep 2025 · 14 co-filers$10.6MWPX Fund IV July 2025, a Series of SecondMarket Growth, LLCSep 2025 · 14 co-filers$4.4MPRCNR I June 2025 a Series of SecondMarket Growth LLCAug 2025 · 12 co-filers$1.5MAvo AI III Groq a Series of SecondMarket Growth LLCAug 2025 · 14 co-filers$20.7MPRCNR I June 2025 a Series of SecondMarket Growth LLCAug 2025 · 12 co-filers$1.5MAvo AI III Groq a Series of SecondMarket Growth LLCAug 2025 · 14 co-filers$20.7MIron Road Multi-Strategy Fund L.P.Jul 2025 · 22 co-filersWPX Fund II Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$20.0MWPX Fund I Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$120.0MWPX Fund III Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$30.0MWPX Fund III Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$30.0MWPX Fund I Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$120.0MWPX Fund II Jun 2025 a Series of SecondMarket Growth LLCJul 2025 · 14 co-filers$20.0M

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