Investor · Houston, TX

Steven A. Pfeifer

Open Steven in the network graph →

Filings

20

SEC Form D

Connections

59

co-filers

Capital

$251.4M

across filings

Active

Nov 2016

to Mar 2025

Most-connected co-filers (59)

Deborah D. Pfeifer · Houston, TX15 shared Jeffrey S. Mathiesen · Eden Prairie, MN12 shared Andrew Taffin · Englewood, NJ12 shared Christopher A. Moore · Houston, TX11 shared Jennifer A. Mcgroarty · New York, NY8 shared David Rosen · Baltimore, MD8 shared Craig W. Packer · New York, NY8 shared Christian N. Currivan · Dublin 2, Ireland4 shared N. Winton Capital Management Limited · London, United Kingdom4 shared Kevin Cottrell · New York, NY4 shared Georgia N. Prinsloo · Grand Cayman, Cayman Islands4 shared Raymond N. O'Neill · Dublin 2, Ireland4 shared N. Winton Capital Management Limited · London, United Kingdom4 shared James Rothman · Emeryville, CA3 shared William Davidow · Emeryville, CA3 shared Michael Moritz · Emeryville, CA3 shared Mark D. Campbell · Greenwood Village, CO3 shared Igor Khandros · Emeryville, CA3 shared Daniel Bisgeier · New York, NY3 shared Michael Marks · Emeryville, CA3 shared Eric Franchi · New York, NY3 shared Peter Piazza · New York, NY3 shared Ming Wu · Emeryville, CA3 shared Rajeev N. Patel · Dublin 2, Ireland3 shared

Recent filings (20)

PO&G Resources Fund II, LPMar 2025 · 2 co-filers PO&G Resources Fund, LPMar 2025 · 8 co-filers PO&G Resources Fund, LPMar 2024 · 8 co-filers PO&G Resources Fund II, LPMar 2024 · 2 co-filers PO&G Resources Fund II, LPMar 2023 · 2 co-filers PO&G Resources Fund, LPMar 2023 · 8 co-filers PO&G Resources Fund, LPApr 2022 · 8 co-filers PO&G Resources Fund II, LPMar 2022 · 2 co-filers PO&G Resources Fund, LPDec 2020 · 8 co-filers Winton Diversified Institutional FundNov 2019 · 10 co-filers PO&G Resources Fund, LPNov 2019 · 8 co-filers Winton Diversified Institutional FundNov 2018 · 13 co-filers Berkeley Lights, Inc.Oct 2018 · 32 co-filers$95.0M PO&G Resources Fund, LPOct 2018 · 8 co-filers Berkeley Lights, Inc.Apr 2018 · 26 co-filers$75.0M Winton Diversified Institutional FundNov 2017 · 13 co-filers PO&G Resources Fund, LPOct 2017 · 8 co-filers Berkeley Lights, Inc.Nov 2016 · 25 co-filers$40.0M Winton Diversified Institutional FundNov 2016 · 12 co-filers MAGNUM HUNTER RESOURCES CORPFeb 2010 · 12 co-filers$15.0M

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