Investor · Grand Rapids, MI

Mark Spoolstra

Open Mark in the network graph →

Filings

31

SEC Form D

Connections

99

co-filers

Capital

$1.1M

across filings

Active

May 2011

to Mar 2025

Most-connected co-filers (99)

Brian Sikma · Grand Rapids, MI27 shared Neil Colgrove · Grand Rapids, MI16 shared Richard Sadowski · Grand Rapids, MI13 shared Fred Reyelts · Grand Rapids, MI13 shared Michael J. Maggi · Houston, TX13 shared Frederick P. Jones · Dallas, TX13 shared Glen R. Martin · BALTIMORE, MD10 shared Vikrant Raina · BOSTON, MA10 shared Instaragf Asset Management Inc · Toronto, Ontario, Canada7 shared Timothy J. Madden · Peninsula, OH7 shared Kevan Fight · Atlanta, GA7 shared Clarence H. Wagner, Jr · Tulsa, OK7 shared Instaragf Asset Management Inc · Toronto, Ontario, Canada7 shared Wilfred J. Hemker · Akron, OH7 shared Keith D. Sernick · Garden City, NY7 shared Instaragf Essential Infrastructure Ii Gp Inc · Grand Cayman, Cayman Islands6 shared Greg G. Joffe · Toronto, Ontario, Canada6 shared Judith G. Goldring · Toronto, Ontario, Canada6 shared Instaragf Essential Infrastructure Ii Gp Inc · Grand Cayman, Cayman Islands6 shared Gregory J. Smith · Toronto, Ontario, Canada6 shared Blake C. Goldring · Toronto, Ontario, Canada6 shared John G. Gort · Toronto, Ontario, Canada6 shared Instaragf Essential Infrastructure Ii Gp Inc · Grand Cayman, Cayman Islands6 shared Maxence J. Monot · Luxembourg, Luxembourg5 shared

Recent filings (31)

Advantage Health Properties, L.L.C.Mar 2025 · 14 co-filers$5.0M Advantage Health Properties, L.L.C.Feb 2024 · 14 co-filers$5.0M Advantage Health Properties, L.L.C.Mar 2023 · 14 co-filers$5.0M Advantage Health Properties, L.L.C.Mar 2022 · 14 co-filers$5.0M Smithfield Trust CoOct 2021 · 23 co-filers$5.6M Advantage Health Properties, L.L.C.Apr 2021 · 14 co-filers$5.0M Advantage Health Properties, L.L.C.Mar 2020 · 14 co-filers$5.0M InstarAGF Essential Infrastructure II (USP - USD) LPOct 2019 · 19 co-filers InstarAGF Essential Infrastructure II (Co-Invest-USD) LPOct 2019 · 19 co-filers InstarAGF Essential Infrastructure II (USD) LPOct 2019 · 19 co-filers Atlas Capital Fund, LPNov 2018 · 2 co-filers$500.0M InstarAGF Essential Infrastructure II (USD) LPNov 2018 · 19 co-filers InstarAGF Essential Infrastructure II (Co-Invest-USD) LPNov 2018 · 19 co-filers InstarAGF Essential Infrastructure II (USP - USD) LPNov 2018 · 19 co-filers Atlas Capital Fund, LPNov 2018 · 2 co-filers SEA Venture Capital Fund - Alung Note 2018 L.P.Nov 2018 · 8 co-filers$1.5M InstarAGF Essential Infrastructure (C-AIE) LPSep 2018 · 12 co-filers$72.0M Hixson Holdings IncFeb 2018 · 16 co-filers$235K Advantage Health Properties, L.L.C.Apr 2015 · 13 co-filers$2.0M Sea Venture Capital Fund-Ridgetop XL L.P.Jan 2015 · 8 co-filers$4.5M Hixson Holdings IncJan 2015 · 28 co-filers$222K SEA Venture Capital Fund - Ridgetop V L.P.Jun 2014 · 5 co-filers$7.5M SEA Venture Capital Fund-Alung 2014 Series B-1, L.P.Apr 2014 · 5 co-filers$1.5M Sea Venture Capital Fund - Alung Series B-1 L.P.Mar 2013 · 5 co-filers$1.5M SEA Venture Capital Fund - Smartpipe Series B-1 L.P.Feb 2013 · 5 co-filers$2.0M

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