Investor · Friendswood, TX
Derek Maetzold
Open Derek in the network graph →Filings
29
SEC Form D
Connections
140
co-filers
Capital
$31.0M
across filings
Active
Jan 2017
to Feb 2021
Most-connected co-filers (140)
Dan T. Bradbury · San Diego, CA10 sharedFrank C. Stokes · Friendswood, TX9 sharedDavid C. Kabakoff, Ph.D · Belmont, CA9 sharedJoseph C. Cook, Jr · Nashville, TN8 sharedG. Crafton N. Axtell · PALM BEACH GARDENS, FL6 sharedHeather M. Harde · Seattle, WA5 sharedGeoffrey M. Arone · Seattle, WA5 sharedPedro Del Nido · Needham, MA5 sharedJean-Luc Boulnois · Needham, MA5 sharedBonnie Anderson · Friendswood, TX5 sharedMara Aspinall · Friendswood, TX5 sharedJack M. Arrington · Miami, FL5 sharedNikolay Vasilyev · Needham, MA5 sharedJudy Reiner · San Luis Obispo, CA4 sharedJoseph Mause · New York, NY4 sharedDaniel Levine · BURLINGAME, CA4 sharedDaniel Woodford · WASHINGTON, Washington, D.C.4 sharedDavid J. Tayeh · New York, NY4 sharedMichael J. Grindfors · New York, NY4 sharedFederico E. Monzon, M.D., Fcap · Friendswood, TX4 sharedBernhard E. Spiess · Friendswood, TX4 sharedLara J. Tiedens · New York, NY4 sharedAndrea Akel · WASHINGTON, Washington, D.C.4 sharedJeffrey D. Malec · Chicago, IL4 shared
Recent filings (29)
Prelude CorpNov 2025 · 17 co-filers$7.5MPlough Penny Partners LPMar 2024 · 4 co-filersPlough Penny Partners LPMar 2023 · 4 co-filersPrelude CorpFeb 2022 · 17 co-filers$20.0MDelta Parent Holdings, Inc.Mar 2021 · 37 co-filersPlough Penny Partners LPMar 2021 · 4 co-filersDelta Parent Holdings, Inc.Mar 2021 · 37 co-filersNido Surgical, Inc.Feb 2021 · 11 co-filers$3.5MNido Surgical, Inc.Feb 2020 · 11 co-filers$3.5MSegregated Portfolio A of EPSG SPC LTD.Nov 2019 · 7 co-filersCASTLE BIOSCIENCES INCMar 2019 · 29 co-filers$11.8MCASTLE BIOSCIENCES INCFeb 2019 · 29 co-filers$10.0MNido Surgical, Inc.Feb 2019 · 11 co-filers$3.5MSegregated Portfolio A of EPSG SPC LTD.Nov 2018 · 7 co-filersCASTLE BIOSCIENCES INCJun 2018 · 26 co-filers$5.3MNido Surgical, Inc.Feb 2018 · 11 co-filers$3.5MCASTLE BIOSCIENCES INCJan 2018 · 26 co-filers$5.5MSTANDARD GENERAL OFFSHORE FUND II LTD.Feb 2017 · 8 co-filersNido Surgical, Inc.Feb 2017 · 11 co-filers$3.5MSegregated Portfolio A of EPSG SPC LTD.Jan 2017 · 7 co-filersCASTLE BIOSCIENCES INCJul 2015 · 13 co-filers$20.0MCASTLE BIOSCIENCES INCAug 2014 · 5 co-filers$12.0MCASTLE BIOSCIENCES INCAug 2014 · 5 co-filers$1.5MCASTLE BIOSCIENCES INCMay 2014 · 4 co-filers$1.0MVivex Biomedical, Inc.Sep 2013 · 25 co-filers$7.2M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Derek in the interactive graph →