Investor · Cambridge, MA

Cillian C. King

Open Cillian in the network graph →

Filings

6

SEC Form D

Connections

58

co-filers

Capital

$79.9M

across filings

Active

Dec 2021

to Sep 2025

Most-connected co-filers (58)

Luca Bovone · Berlin, 2M4 shared Elyse M. Mclaughlin · Newark, NJ2 shared Michael C. Hutton · Cambridge, MA2 shared Christopher Kingsley · Lincoln, NE2 shared Steven Estrick · Tampa, FL2 shared Mike Sodo · Sandy, UT2 shared Shannon Schweigert · West Fargo, ND2 shared Todd Fry · West Fargo, ND2 shared Charles Kaufman · San Francisco, CA2 shared Robert M. Kennedy · Kalamazoo, MI2 shared Matt Tucker · Sandy, UT2 shared Gino Zandonai · VANCOUVER, British Columbia, Canada2 shared Johannes C. Fruehauf · Cambridge, MA2 shared Anne C. Whitaker · Cambridge, MA2 shared Sebastian Milla · Lincoln, NE2 shared Andrew S. Rosen · Dallas, TX2 shared Kasper C. Roet · Cambridge, MA2 shared Robert Stanley · New York, NY2 shared Paul Kirincich · Fremont, CA2 shared Gloria J. Olivier · Rochester, MN2 shared Brendan P. Kenny · Edmonton, Alberta, Canada2 shared Tim Warman · VANCOUVER, British Columbia, Canada2 shared Laia C. Crespo-Martin · Cambridge, MA2 shared Kelly A. Coyne · Newark, NJ2 shared

Recent filings (6)

QurAlis CorpSep 2025 · 27 co-filers$24.9M QurAlis CorpMar 2023 · 40 co-filers$88.0M APA Venture Partners Fund I, LPDec 2022 · 11 co-filers Velocity Growth Fund LPOct 2022 · 9 co-filers Velocity Capital Investors Fund I LPDec 2021 · 9 co-filers APA Venture Partners Fund I, LPDec 2021 · 11 co-filers

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