Investor · Luxembourg, Luxembourg

Kathryn O'Sullivan

Open Kathryn in the network graph →

Filings

90

SEC Form D

Connections

180

co-filers

Capital

$88.4M

across filings

Active

Mar 2021

to Jan 2026

Most-connected co-filers (180)

Edward E. Mcgee · Stamford, CT69 shared Harald Zeiter · New York, NY60 shared Genesis Global Trading, Inc · New York, NY52 shared Barry E. Silbert · Stamford, CT44 shared Craig D. Effron · New York, NY44 shared Michael E. Sonnenshein · Stamford, CT41 shared Curtis D. Schenker · New York, NY41 shared Grayscale Investments, Llc · New York, NY40 shared Genesis Global Trading, Inc · New York, NY40 shared Grayscale Investments, Llc · New York, NY40 shared Hina Ahmad · Luxembourg, Luxembourg35 shared Grayscale Investments Sponsors, Llc · Stamford, CT28 shared Peter Mintzberg · Stamford, CT28 shared Mark Shifke · Stamford, CT28 shared Grayscale Securities, Llc · Stamford, CT25 shared Simon Koster · Stamford, CT25 shared Murphy E. Mark · Stamford, CT24 shared Matthew Baxter · GRAND RAPIDS, MI24 shared Grayscale Operating, Llc · Stamford, CT21 shared E. Grayscale Securities, Llc · Stamford, CT17 shared Guy Knepper · LUXEMBOURG, Luxembourg17 shared E. Grayscale Securities, Llc · Stamford, CT17 shared Mark E. Murphy · Stamford, CT17 shared Gabriel Jarrosson · Paris, I017 shared

Recent filings (90)

Grayscale Bittensor Trust (TAO)Jan 2026 · 7 co-filers Grayscale Space & Time Trust (SXT)Jan 2026 · 7 co-filers Grayscale Lido DAO Trust (LDO)Jan 2026 · 7 co-filers Grayscale Avalanche Trust (AVAX)Jan 2026 · 7 co-filers Grayscale Livepeer Trust (LPT)Jan 2026 · 8 co-filers Grayscale Stellar Lumens Trust (XLM)Jan 2026 · 8 co-filers Grayscale Decentraland Trust (MANA)Jan 2026 · 8 co-filers Grayscale Litecoin Trust (LTC)Jan 2026 · 8 co-filers Grayscale Ethereum Classic Trust (ETC)Jan 2026 · 8 co-filers Grayscale Bitcoin Cash Trust (BCH)Jan 2026 · 8 co-filers Grayscale Walrus Trust (WAL)Jan 2026 · 7 co-filers Grayscale Smart Contract Fund LLCJan 2026 · 8 co-filers Grayscale Story Trust (IP)Jan 2026 · 7 co-filers Grayscale Aave Trust (AAVE)Jan 2026 · 7 co-filers Grayscale Pyth Trust (PYTH)Jan 2026 · 7 co-filers Grayscale Basic Attention Token Trust (BAT)Jan 2026 · 8 co-filers Grayscale Horizen Trust (ZEN)Jan 2026 · 8 co-filers Grayscale Sui Trust (SUI)Jan 2026 · 7 co-filers Grayscale Optimism Trust (OP)Jan 2026 · 7 co-filers Grayscale Filecoin Trust (FIL)Jan 2026 · 8 co-filers Grayscale Decentralized Finance (DeFi) Fund LLCJan 2026 · 8 co-filers Grayscale DeepBook Trust (DEEP)Jan 2026 · 7 co-filers Grayscale Near Trust (NEAR)Jan 2026 · 7 co-filers Grayscale Zcash Trust (ZEC)Jan 2026 · 8 co-filers Grayscale Decentralized AI Fund LLCJan 2026 · 7 co-filers

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