Investor · Mill Valley, CA
A. M. Waldron
Open A. in the network graph →Filings
31
SEC Form D
Connections
118
co-filers
Capital
$240.6M
across filings
Active
Aug 2020
to Mar 2024
Most-connected co-filers (118)
Patrick D. Tenney · Mill Valley, CA13 sharedJohn D. Botti · Mill Valley, CA11 sharedLeroy Metz · Pittsburgh, PA7 sharedDean C. Popil · Regina, Saskatchewan, Canada7 sharedPhilip G. Zahnd · PORTLAND, OR7 sharedCynthia W. Sandall · Eugene, OR7 sharedPrateek G. Alsi · Portland, OR7 sharedMt. Tam Capital Management, Llc · Mill Valley, CA7 sharedCatherine W. Berman · Oakland, CA7 sharedCurtis Armstrong · Regina, Saskatchewan, Canada7 sharedMt. Tam Capital Management, Llc · Mill Valley, CA7 sharedE. C. Lothian · Regina, Saskatchewan, Canada7 sharedMichael I. Larkin · SANTA BARBARA, CA5 sharedDhruv Singh · New York, NY5 sharedHoang Phan · Dover, DE5 sharedJoseph Turner · Dover, DE5 sharedCharles M. Hazard · Saint John, New Brunswick, Canada5 sharedAlexei Erchak · Cambridge, MA4 sharedPatricia P. Lamb · London, United Kingdom4 sharedPeter R. Valenti · New York, NY4 sharedAndrew J. Newington · London, United Kingdom4 sharedArvind Baliga · Cambridge, MA4 sharedMartin Forest · Cambridge, MA4 sharedKurt R. Holstein · New York, NY4 shared
Recent filings (31)
Mt. Tam Partners, L.P.Apr 2025 · 10 co-filersMt. Tam Partners, L.P.Apr 2025 · 10 co-filersTaproot Fund GP LLCMay 2024 · 8 co-filersTaproot Partners LPMay 2024 · 8 co-filersMt. Tam Partners, L.P.Apr 2024 · 10 co-filersMt. Tam Partners, L.P.Apr 2024 · 10 co-filersSELLAS Life Sciences Group, Inc.Mar 2024 · 18 co-filers$18.4MMt. Tam Partners, L.P.Jul 2023 · 10 co-filersAdditive Space SPV - Sharding Holdings Management LLCJan 2023 · 7 co-filers$128KAtomic Industries SPV - Sharding Holdings Management LLCJan 2023 · 7 co-filers$104KWeatherwax SPV a series of Sharding Holdings Management LLCDec 2022 · 7 co-filers$252KEpibone SPV - Sharding Holdings Management LLCDec 2022 · 7 co-filers$104KAbalone Bio a series of Sharding Holdings Management LLCDec 2022 · 8 co-filers$165KGCM Grosvenor Elevate Feeder Fund I, L.P.Dec 2022 · 35 co-filersGCM Grosvenor Elevate Fund I, L.P.Dec 2022 · 35 co-filersLEX ENERGY PARTNERS LP V (U.S.)Oct 2022 · 8 co-filers$13.4MMt. Tam Partners, L.P.Aug 2022 · 10 co-filersLEX ENERGY PARTNERS LP V (U.S.)Jul 2022 · 8 co-filers$9.5MLEX ENERGY PARTNERS LP V (U.S.)Jul 2022 · 8 co-filers$1.8MMt. Tam Partners, L.P.Aug 2021 · 10 co-filersAppViewX, Inc.Sep 2020 · 16 co-filers$2.0MSELLAS Life Sciences Group, Inc.Aug 2020 · 18 co-filers$9.2MGenemod CorpAug 2020 · 14 co-filers$1.5MMt. Tam Partners, L.P.Aug 2020 · 10 co-filersLex Energy Partners LP IV (U.S.)Feb 2019 · 8 co-filers$10.0M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See A. in the interactive graph →