Investor · Westford, MA
Mark Kost
Open Mark in the network graph →Capital
$8.6M
across filings
Active
Jun 2015
to Mar 2022
Most-connected co-filers (56)
Steven L. Bock · NATICK, MA12 sharedSandy Posa · Westford, MA12 sharedAndrew Patterson · Birmingham, AL10 sharedKevin Crowley · Stamford, CT10 sharedDan P. Marcum · Tullahoma, TN10 sharedDerek Waltchack · Birmingham, AL10 sharedKonstantine B. Drakonakis · New Haven, CT10 sharedHarry H. Penner, Jr · Hampton, NJ10 sharedTrip Flavin · Westford, MA8 sharedJames Nahirny · Atlanta, GA7 sharedHugh A. Stoll · Harrisonburg, VA6 sharedPat Robertson · SAN FRANCISCO, CA6 sharedEsther Angelou · Austin, TX6 sharedVincent H. Pieribone · New Haven, CT6 sharedPeter Clay · Westford, MA6 sharedStuart Flavin · Westford, MA4 sharedHMC-Virginia, Inc · Richmond, VA4 sharedPhilip Zarb Mizzi · Grand Duchy of Luxembourg, Luxembourg4 sharedRohan Sikri · Ckivedin, U04 sharedCarmelo Gordian · Austin, TX4 sharedAnthony B. Davis · Dallas, TX4 sharedDouglas S. Ingram · Costa Mesa, CA2 sharedGabriel Safar · Boston, MA2 sharedJoshua Hoffman · Emeryville, CA2 shared Recent filings (15)
HCI Cleaning Products, LLCFeb 2026 · 4 co-filers$2.0MHCI Cleaning Products, LLCMar 2022 · 14 co-filers$5.0MHCI Cleaning Products, LLCFeb 2021 · 14 co-filers$3.0MHCI Cleaning Products, LLCApr 2020 · 14 co-filers$3.5MHCI Cleaning Products, LLCMar 2020 · 14 co-filers$2.0MPalatine Private Equity Fund IV LPAug 2019 · 5 co-filers$363.0MHCI Cleaning Products, LLCJun 2019 · 14 co-filers$2.0MHCI Cleaning Products, LLCFeb 2019 · 14 co-filers$1.5MHCI Cleaning Products, LLCOct 2018 · 14 co-filers$2.5MHCI Cleaning Products, LLCOct 2017 · 14 co-filers$1.5MHCI Cleaning Products, LLCJan 2017 · 14 co-filers$1.0MZymergen Inc.Oct 2016 · 29 co-filers$130.0MHCI Cleaning Products, LLCAug 2015 · 16 co-filers$1.0MZymergen Inc.Jun 2015 · 18 co-filers$44.7MPalatine Private Equity Fund III LPJun 2015 · 8 co-filers$337.6M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Mark in the interactive graph →