Ledger.
Investor · New York, NY

Konstantine Costalas

Open Konstantine in the network graph →
Filings
11
SEC Form D
Connections
68
co-filers
Capital
$14.8M
across filings
Active
Apr 2022
to Apr 2025

Most-connected co-filers (68)

Mark Michalski · New York, NY6 sharedJohn Beadle · New York, NY5 sharedGregg Fergus · New York, NY5 sharedDilshod Jumaniyazov · New York, NY4 sharedLaurence Kraemer · New York, NY4 sharedClough Capital Partners L.P · Boston, MA4 sharedClough Capital Partners L.P · Boston, MA4 sharedDaniel J. Gillis · Boston, MA4 sharedSze Lok Patrick Wong · Chicago, IL3 sharedCharles I. Clough · Boston, MA3 sharedMichael V. Barbera · Pompano Beach, FL3 sharedJoshua Lau · Dublin, OH3 sharedJohn E. Kowaleski · Boston, MA3 sharedJohn C. Banks · Marown, Y83 sharedJeff K. Schachter · Lakewood, NJ3 sharedRichard P. Leggio, Ii · Miami, FL2 sharedJames J. Sunday · Boston, MA2 sharedPhillip A. Clough · Washington, Washington, D.C.2 sharedRobert Pease · Vancouver, British Columbia, Canada2 sharedTeresa T. Cheng · Vancouver, British Columbia, Canada2 sharedAres Insurance RE Secondaries Fund GP LP · West Hartford, CT2 sharedCalbraith R. Wheaton · Washington, Washington, D.C.2 sharedRobyn T. Geffner · New York, NY2 sharedRobert T. Boyd · Vancouver, British Columbia, Canada2 shared

Recent filings (11)

Ascertain Systems, Inc.Apr 2025 · 7 co-filers$10.0MAscertain Systems, Inc.Apr 2025 · 7 co-filers$10.0MCLOUGH OFFSHORE FUND LTDApr 2025 · 10 co-filersEndurance Gold CorpJun 2024 · 17 co-filers$5.3MCLOUGH OFFSHORE FUND LTDApr 2024 · 13 co-filersDigital Transformation TopCo, LLCMar 2024 · 14 co-filers$10.9MAscertain Systems, Inc.Mar 2024 · 16 co-filers$10.9MAscertain Systems, Inc.Mar 2024 · 16 co-filers$10.9MDigital Transformation TopCo, LLCMar 2024 · 14 co-filers$10.9MEndurance Gold CorpOct 2023 · 17 co-filers$1.0MCLOUGH OFFSHORE FUND LTDApr 2023 · 13 co-filersConsolidated Machine & Tool Holdings, LLCApr 2022 · 19 co-filers$3.8MCLOUGH OFFSHORE FUND LTDApr 2022 · 13 co-filersJS Global Holdings, LLCApr 2022 · 17 co-filers$32.5M

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