Ledger.
Investor · New York, NY

Sean T. Klimczak

Open Sean in the network graph →
Filings
75
SEC Form D
Connections
92
co-filers
Capital
$74.2B
across filings
Active
Oct 2014
to Feb 2026

Most-connected co-filers (92)

Vikrant A. Sawhney · New York, NY73 sharedGgp Spv-1 Gp Llc · Pound Ridge, NY72 sharedChristopher G. Placca · New York, NY71 sharedBlackstone Infrastructure Advisors L.L.C · New York, NY64 sharedBlackstone Infrastructure Advisors L.L.C · New York, NY60 sharedBlackstone Infrastructure Advisors L.L.C · New York, NY52 sharedPaul Schlaack · New York, NY49 sharedEric Liaw · Menlo Park, CA48 sharedMichael Knauss · New York, NY39 sharedBia Gp L.L.C · New York, NY38 sharedBia Gp L.P · New York, NY37 sharedOmar G. Rehman · New York, NY30 sharedBia Gp L.L.C · New York, NY28 sharedBia Gp L.P · New York, NY27 sharedBia Gp Nq L.P · New York, NY24 sharedBlackstone Infrastructure Associates Nq L.P · New York, NY24 sharedBia Gp Nq L.P · New York, NY23 sharedBlackstone Infrastructure Associates Nq L.P · New York, NY23 sharedBlackstone Infrastructure Associates Non-Eci L.P · New York, NY21 sharedBia Gp Nq L.L.C · New York, NY21 sharedBia Gp Nq L.P · New York, NY20 sharedBlackstone Infrastructure Associates Nq L.P · New York, NY20 sharedJoe Lonsdale · San Francisco, CA19 sharedBia Gp Nq L.L.C · New York, NY18 shared

Recent filings (75)

Blackstone Infrastructure Poseidon Co-Invest L.P.Feb 2026 · 10 co-filersBlackstone Infrastructure Partners - V Feeder L.P.Feb 2026 · 11 co-filersBlackstone Infrastructure Partners Europe F (CYM) L.P.Feb 2026 · 10 co-filersBlackstone Infrastructure Partners Europe (CYM) L.P.Feb 2026 · 10 co-filersBIP Nucleus REITco V LLCFeb 2026 · 10 co-filers$625KBIP Volt REIT LLCFeb 2026 · 10 co-filers$375KBIP Nucleus REITco III LLCFeb 2026 · 10 co-filers$125KBIP Nucleus REITco IV LLCFeb 2026 · 10 co-filers$125KBlackstone Infrastructure Strategies L.P.Jan 2026 · 13 co-filersBlackstone Infrastructure Partners (Supplemental Account II) L.P.Oct 2025 · 16 co-filersBlackstone Infrastructure Odyssey Co-Invest L.P.Oct 2025 · 16 co-filersBlackstone Infrastructure Poseidon Co-Invest L.P.Aug 2025 · 16 co-filersBlackstone Infrastructure Troy Co-Invest 3 L.P.Aug 2025 · 16 co-filersBlackstone Infrastructure Partners F.1 L.P.May 2025 · 17 co-filersBlackstone Infrastructure Partners L.P.May 2025 · 17 co-filersBlackstone Infrastructure Partners F.2 L.P.May 2025 · 17 co-filersInfrastructure Investments L.P.May 2025 · 18 co-filersBlackstone Infrastructure Troy Co-Invest L.P.May 2025 · 13 co-filersBlackstone Infrastructure Troy Co-Invest 2 L.P.May 2025 · 13 co-filersBlackstone Infrastructure Partners F.4 L.P.Dec 2024 · 19 co-filersBlackstone Infrastructure Partners IRH-G L.P.Dec 2024 · 17 co-filersBlackstone Infrastructure Green Co-Invest 3 L.P.Dec 2024 · 18 co-filersBlackstone Infrastructure Partners - V Feeder L.P.Nov 2024 · 18 co-filersBlackstone Infrastructure Green Co-Invest 2 L.P.Oct 2024 · 17 co-filersBlackstone Infrastructure Hogan Co-Invest 2 (CYM) L.P.Jun 2024 · 18 co-filers

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