Investor · Warsaw, NY

Martin K. Birmingham

Open Martin in the network graph →

Filings

6

SEC Form D

Connections

62

co-filers

Capital

$115.0M

across filings

Active

Oct 2019

to Dec 2025

Most-connected co-filers (62)

Robert N. Latella · Warsaw, NY4 shared Travis Rush · PORTLAND, OR4 shared Michael K. Mithoff · Houston, TX2 shared Gregory Fontana · New York, NY2 shared Angelo Acquista · New York, NY2 shared David F. Horowitz · San Francisco, CA2 shared Durham F. Jones · Needham Heights, MA2 shared Donald K. Boswell · Warsaw, NY2 shared Richard Mulry · New York, NY2 shared Adrian Gilmore · New York, NY2 shared Stephen F. Cartt · San Diego, CA2 shared Lindy Widner · Greenwood Village, CO2 shared Justin Burns · Greenwood Village, CO2 shared Brandon R. Turner · Kihei, HI2 shared Kim E. Vangelder · Warsaw, NY2 shared Jane Spirovski · Needham Heights, MA2 shared Dawn H. Burlew · Warsaw, NY2 shared Andrew W. Dorn, Jr · Warsaw, NY2 shared Robert M. Glaser · Warsaw, NY2 shared Susan R. Holliday · Warsaw, NY2 shared Michael Fawkes · New York, NY2 shared Thomas Ewing · CHARLOTTE, NC2 shared Matthew Wallington · PORTLAND, OR2 shared Stuart J. Ellman · New York, NY2 shared

Recent filings (6)

FINANCIAL INSTITUTIONS INCDec 2025 · 47 co-filers$80.0M FINANCIAL INSTITUTIONS INCOct 2020 · 37 co-filers$35.0M Peerbridge Health, Inc.Apr 2020 · 17 co-filers$3.7M Peerbridge Health, Inc.Nov 2019 · 17 co-filers$20.0M Siriiz, LLCNov 2019 · 5 co-filers$1.2M Siriiz, LLCOct 2019 · 5 co-filers

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