Investor · Naperville, IL

Jeffrey P. Chamberlain

Open Jeffrey in the network graph →

Filings

32

SEC Form D

Connections

129

co-filers

Capital

$31.1M

across filings

Active

Oct 2023

to Feb 2026

Most-connected co-filers (129)

Michael Sodaro · Naperville, IL16 shared David P. Schroeder · Naperville, IL10 shared Volta Energy Storage Fund I GP, LLC · WARRENVILLE, IL9 shared Volta Energy Storage Fund II GP, LLC · Naperville, IL8 shared Alexander P. Arkin · Naperville, IL7 shared Thomas N. Wilson, Jr · Mount Pleasant, SC5 shared Julie Sunderland · Seattle, WA5 shared Alana Anderson · San Francisco, CA5 shared Paul B. Yearout · Mount Pleasant, SC5 shared David O. Wise · Mount Pleasant, SC5 shared Gyda C. Beeson · Charleston, SC4 shared Jonathan Terzi · New York, NY3 shared Vance Vanier · CHICAGO, IL3 shared Kumar Patel · Seattle, WA3 shared Karlos W. Hanchey · Atlanta, GA3 shared Gregory Poilasne · San Diego, CA3 shared Zachary Aarons · New York, NY3 shared Nikita Cheniutai · Melbourne, FL3 shared Anna Cheniutai · Melbourne, FL3 shared Kristopher Morin · ENFIELD, CT3 shared E. T. Walrath · McLean, VA3 shared Paul A. Iaffaldano · Atlanta, GA3 shared Christopher T. Brandt · McLean, VA3 shared Matthew T. Aprahamian · McLean, VA3 shared

Recent filings (32)

Volta PER Co-Investment, LPFeb 2026 · 2 co-filers$8.0M CareSave Technologies, Inc.Aug 2025 · 16 co-filers$20.0M Volta MNL Co-Investment LPJul 2025 · 5 co-filers$5.3M VOLTA ITR CO-INVESTMENT, LPNov 2024 · 6 co-filers$4.4M VOLTA ITR CO-INVESTMENT, LPNov 2024 · 6 co-filers VESF II FEEDER FUND, LPOct 2024 · 4 co-filers 405 SSTV III LLCSep 2024 · 15 co-filers VOLTA ECH CO-INVESTMENT, LPJun 2024 · 3 co-filers VOLTA ECH CO-INVESTMENT, LPJun 2024 · 3 co-filers Volta Energy Storage Fund II, LPJun 2024 · 7 co-filers$500.0M CareSave Technologies, Inc.May 2024 · 14 co-filers$47.0M Apis Cor Inc.Apr 2024 · 4 co-filers VESF II FEEDER FUND, LPOct 2023 · 3 co-filers Volta Energy Storage Fund II, LPJun 2023 · 7 co-filers$500.0M Volta Energy Storage Fund II, LPMay 2023 · 7 co-filers$500.0M VOLTA ITR CO-INVESTMENT, LPApr 2023 · 13 co-filers$3.6M Volta NGF Co-Investment, LPNov 2022 · 13 co-filers$4.3M Volta ONE Co-Investment, LPOct 2022 · 10 co-filers$3.6M Loncor Gold Inc.Jun 2022 · 20 co-filers$1.9M Volta SPW Co-Investment, LPMar 2022 · 4 co-filers$15.1M SIERRA BANCORPOct 2021 · 41 co-filers$50.0M SIERRA BANCORPOct 2021 · 41 co-filers$50K Apis Cor Inc.Oct 2021 · 5 co-filers$170K Apis Cor Inc.Oct 2021 · 5 co-filers$1.6M Loncor Gold Inc.Aug 2021 · 20 co-filers$2.5M

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