Investor · Chester, PA

Brian Kostka

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Filings

19

SEC Form D

Connections

71

co-filers

Capital

$10.0M

across filings

Active

Mar 2020

to Sep 2023

Most-connected co-filers (71)

James Krieg · Chester, PA17 shared Paul E. Truitt · West Chester, PA9 shared Derek Donegan · Chester, PA9 shared Simon Greenman · Chester, PA9 shared Michael E. West · West Chester, PA7 shared James R. Wilkinson · West Chester, PA7 shared Vaibhav Nalwaya · Boston, MA6 shared Damia Tormo · Cambridge, MA6 shared Richard Summerbell · Calgary, Alberta, Canada6 shared Deepak Sindwani · New York, NY6 shared Blaine Monaghan · Vancouver, British Columbia, Canada5 shared Arie N. Page · Vancouver, British Columbia, Canada5 shared Salvador G. Miranda · Vancouver, British Columbia, Canada5 shared Ned W. Brines · Philadelphia, PA5 shared Deforest B. Soaries Jr · Philadelphia, PA5 shared Thom Hinton · Calgary, Alberta, Canada5 shared Ana Marie H. Del Rio · Philadelphia, PA5 shared Danette G. Schwab · Vancouver, British Columbia, Canada5 shared Stephen R. Bowie · Philadelphia, PA5 shared Thomas H. Purcell · Philadelphia, PA5 shared Gerald (Gerry) G. Carlson · Vancouver, British Columbia, Canada5 shared Borden G. Putnam Iii · Vancouver, British Columbia, Canada5 shared Bruce A. Youngman · VANCOUVER, British Columbia, Canada5 shared Ella S. Neyland · Oak Brook, IL5 shared

Recent filings (19)

PACIFIC RIDGE EXPLORATION LTDApr 2024 · 23 co-filers$29K PACIFIC RIDGE EXPLORATION LTDOct 2023 · 23 co-filers$99K Wavecrest Growth Partners Cardata SPV, L.P.Sep 2023 · 8 co-filers$31.3M ORtelligence, Inc.Jan 2023 · 23 co-filers$2.6M Wavecrest Growth Partners Impel Opportunities Fund, L.P.Dec 2022 · 7 co-filers Altana Technologies, Inc.Oct 2022 · 10 co-filers$100.0M PACIFIC RIDGE EXPLORATION LTDSep 2022 · 23 co-filers$717K PACIFIC RIDGE EXPLORATION LTDMay 2022 · 23 co-filers$56K ORtelligence, Inc.Apr 2022 · 23 co-filers$5.0M PACIFIC RIDGE EXPLORATION LTDJun 2021 · 20 co-filers$1.6M Altana Technologies, Inc.Jun 2021 · 8 co-filers$22.7M Wavecrest Growth Partners II, L.P.May 2021 · 5 co-filers$290.0M Wavecrest Growth Partners Pole Star SPV, L.P.Mar 2021 · 5 co-filers$14.7M ORtelligence, Inc.Feb 2021 · 14 co-filers$6.0M ORtelligence, Inc.Jan 2021 · 14 co-filers$5.0M Wavecrest Growth Partners Volante SPV, L.P.Jul 2020 · 5 co-filers$8.4M MAYFIELD SELECT II HOLDINGS, A DELAWARE LIMITED PARTNERSHIPMar 2020 · 5 co-filers Wavecrest Growth Partners EDITED SPV, L.P.Mar 2020 · 5 co-filers$4.5M MAYFIELD SELECT II, A DELAWARE LIMITED PARTNERSHIPMar 2020 · 5 co-filers

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