Investor · Waltham, MA

Louis A. Cannon

Open Louis in the network graph →

Filings

23

SEC Form D

Connections

72

co-filers

Capital

$90.5M

across filings

Active

Oct 2010

to Sep 2025

Most-connected co-filers (72)

David H. Bassa · Raanana, L310 shared David W. Long · Waltham, MA9 shared Jeffrey G. Gold · Waltham, MA9 shared Mark J. Toland · Waltham, MA8 shared Harris N. Barton · San Francisco, CA7 shared Raymond C. Leonard · Houston, TX7 shared Tom J. Parsons · Grand Cayman, Cayman Islands6 shared Matthew Gilmartin · NEW YORK, NY6 shared David A. Bree · Grand Cayman, Cayman Islands6 shared Laurence W. Cohen · New York, NY6 shared Benjamin S. Gambill Iii · New York, NY6 shared Julie O. O'Hara · GRAND CAYMAN, Cayman Islands6 shared Jeffrey C. Lightcap · Lewisville, TX6 shared Kevin R. Barcelona · New York, NY6 shared Don M. Seymour · George Town, Grand Cayman, Cayman Islands6 shared Cormac L. Sheehan · Georgetown, Cayman Islands6 shared Campbell D. Rogers · Waltham, MA6 shared Thomas Heneghan · CHICAGO, IL6 shared James Gilligan · CHICAGO, IL6 shared Michael J. Linn · NEW YORK, NY6 shared James R. Tobin · Waltham, MA5 shared Douglas L. Braunstein · Waltham, MA5 shared George R. Arida · Ann Arbor, MI5 shared Nicole Kruk · Southold, NY5 shared

Recent filings (23)

H. Barton Venture Select VI, LLCSep 2025 · 4 co-filers$300.0M H. Barton Rise Fund, LLCSep 2025 · 4 co-filers$40.0M H. Barton Venture Select IV, LLCApr 2020 · 5 co-filers$250.0M H. Barton Co-Invest Fund IV, LLCApr 2020 · 5 co-filers$60.0M H. Barton Co-Invest Fund IV, LLCJan 2020 · 5 co-filers$30.0M Corindus Vascular Robotics, Inc.Mar 2019 · 29 co-filers$414K Corindus Vascular Robotics, Inc.Mar 2019 · 29 co-filers$4.8M Corindus Vascular Robotics, Inc.Mar 2019 · 29 co-filers$15.0M Corindus Vascular Robotics, Inc.Mar 2018 · 25 co-filers$25.0M Corindus Vascular Robotics, Inc.Mar 2018 · 26 co-filers$180K H. BARTON VENTURE SELECT III, LLCJan 2018 · 5 co-filers$250.0M Corindus Vascular Robotics, Inc.Mar 2017 · 21 co-filers$45.0M H. Barton Co-Invest Fund III, LLCJun 2016 · 4 co-filers$50.0M KPCB Digital Growth Fund III, LLCJun 2016 · 9 co-filers$1.0B Kleiner Perkins Caufield & Byers XVII, LLCJun 2016 · 13 co-filers$400.0M KPCB Digital Growth Fund II, LLCJun 2014 · 5 co-filers$750.0M Kleiner Perkins Caufield & Byers XVI, LLCJun 2014 · 9 co-filers$450.0M Kleiner Perkins Caufield & Byers XV, LLCMay 2012 · 17 co-filers$525.0M KPCB China Fund II, L.P.Nov 2011 · 8 co-filers$250.0M KPCB Digital Growth Fund, LLCMar 2011 · 7 co-filers$1.0B KPCB Digital Growth Fund, LLCNov 2010 · 7 co-filers$750.0M Kleiner Perkins Caufield & Byers XIV, LLCNov 2010 · 7 co-filers$650.0M KPCB sFund, LLCOct 2010 · 7 co-filers$50.0M

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