Investor · Chilmark, MA

Brook Katzen

Open Brook in the network graph →

Filings

12

SEC Form D

Connections

58

co-filers

Capital

$1.5M

across filings

Active

Jul 2019

to Nov 2021

Most-connected co-filers (58)

Samuel Schreiber · Chilmark, MA9 shared Stephen Dalby · Lehi, UT7 shared David Irwin · Bellevue, WA7 shared Jp A. Paquin · New York, NY7 shared van Biema Value Partners, LLC · New York, NY7 shared William Burns · McKinney, TX6 shared Jeff Siegel · Huntsville, UT6 shared Brian Moreland · New York, NY5 shared Matt Forti · Highland Park, IL5 shared Steven M. Diedrich · Waco, TX4 shared Mijia (Bob) E. Wu · EMERYVILLE, CA4 shared Cato Partners GP, LLC · New York, NY4 shared Paul E. Freiman · EMERYVILLE, CA4 shared Justin M. Hall · EMERYVILLE, CA4 shared Jerry L. Whitmire · Tempe, AZ4 shared Yenyou (Jeff) E. Zheng · EMERYVILLE, CA4 shared Cato Partners Management, LLC · New York, NY4 shared Swan E. Sit · EMERYVILLE, CA4 shared Xinzhou (Paul) E. Li · EMERYVILLE, CA4 shared David Tashjian · FORT LAUDERDALE, FL3 shared Michael Caron · FORT LAUDERDALE, FL3 shared Yolanda L. Banks Mccoy · GRAND CAYMAN, Cayman Islands3 shared Douglas Von Allmen · FORT LAUDERDALE, FL3 shared van Biema & Company, LLC · NEW YORK, NY3 shared

Recent filings (12)

NovaBay Pharmaceuticals, Inc.Nov 2021 · 26 co-filers$15.0M MM SAMBROOK RE, LLCApr 2021 · 7 co-filers$800K MM SAMBROOK OPERATING, LLCApr 2021 · 7 co-filers$750K NovaBay Pharmaceuticals, Inc.Jul 2020 · 23 co-filers$6.8M NovaBay Pharmaceuticals, Inc.May 2020 · 23 co-filers$1.7M DirectTIPS, LLCMay 2020 · 17 co-filers$1.0M DirectTIPS, LLCMay 2020 · 16 co-filers$1.0M DirectTIPS, LLCMay 2020 · 16 co-filers$1.7M NovaBay Pharmaceuticals, Inc.May 2020 · 21 co-filers NovaBay Pharmaceuticals, Inc.Aug 2019 · 15 co-filers$4.2M NovaBay Pharmaceuticals, Inc.Aug 2019 · 15 co-filers$2.7M NovaBay Pharmaceuticals, Inc.Jul 2019 · 14 co-filers$2.4M

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