Investor · GREENWICH, CT
Alexander Denner
Open Alexander in the network graph →Filings
76
SEC Form D
Connections
126
co-filers
Capital
$5.2B
across filings
Active
Aug 2014
to May 2024
Most-connected co-filers (126)
Jonathan A. Roney · George Town, Grand Cayman, Cayman Islands28 sharedFranklin Berger · Redwood City, CA20 sharedVinit Bhatt · Mill Valley, CA20 sharedGeoff C. Ruddick · Grand Cayman, Cayman Islands15 sharedDarin Bright · MADISON, NJ10 sharedJustin Gleason · San Francisco, CA10 sharedRobert A. Gerhard · The Woodlands, TX10 sharedAlison H. Turner · The Woodlands, TX10 sharedCaitlin O'Connor · San Francisco, CA10 sharedPatrice Bonfiglio · Greenwich, CT9 sharedMichael Handley · Wexford, PA8 sharedJ. C. Mitchell · Vancouver, British Columbia, Canada8 sharedRobert Wyler · Campbell, CA8 sharedMelissa M. Boyce · Newtown, PA8 sharedMark Dipaolo · Greenwich, CT8 sharedMatthew Meyers · Newark, NJ7 sharedChristopher H. Lebeau · Grand Cayman, Cayman Islands7 sharedTito Serafini · Redwood City, CA7 sharedNathan E. Fier · Vancouver, British Columbia, Canada6 sharedHelene Cartier · Montreal, Quebec, Canada6 sharedPeter Fenton · San Francisco, CA6 sharedVictor Costa · Miami, FL6 sharedLiad Meidar · New York, NY5 sharedWarren B. Lammert Iii · Boston, MA5 shared
Recent filings (76)
LYC Copper 376 LLCMar 2026 · 3 co-filers$3.0MPRISA II LPFeb 2026 · 3 co-filersSarissa Capital Catapult Fund LLCNov 2025 · 4 co-filersSarissa Capital Catapult Fund LLCNov 2025 · 4 co-filersVC Iron Horse 1 Limited PartnershipNov 2025 · 5 co-filers$10.0MLYC Balterra LLCSep 2025 · 11 co-filers$7.8MSarissa Capital Domestic Fund LPJul 2025 · 2 co-filersSarissa Capital Offshore Fund LtdJul 2025 · 8 co-filersSarissa Capital Offshore Fund LtdJul 2025 · 8 co-filersSarissa Capital Domestic Fund LPJul 2025 · 2 co-filersIbis Multi-Strategy Fund I L.P.May 2025 · 5 co-filersPRISA II LPFeb 2025 · 11 co-filersPR II Daniel Burnham LLCJan 2025 · 13 co-filers$125KSarissa Capital Catapult Fund LLCOct 2024 · 3 co-filersSouth Loop Ventures, L.P.Jun 2024 · 2 co-filers$50.0MSarissa Capital Offshore Fund II LtdMay 2024 · 8 co-filersSarissa Capital Offshore Fund LtdMay 2024 · 8 co-filersSarissa Capital Domestic Fund LPMay 2024 · 2 co-filersSarissa Capital Domestic Fund II LPMay 2024Ibis Multistrategy Offshore Fund 1, LTDMay 2024 · 8 co-filersIbis Multi-Strategy Fund I L.P.May 2024 · 5 co-filersPRISA II LPFeb 2024 · 11 co-filersAttralus, Inc.Feb 2024 · 23 co-filers$56.0MAttralus, Inc.Feb 2024 · 23 co-filers$56.0MSarissa Capital Catapult Fund LLCOct 2023 · 2 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Alexander in the interactive graph →