Investing Profile

Patrick O'Shaughnessy(57)

CEOVCInvestorFounder
Partner and CEO @ Positive Sum
positivesumvc.comStamford, Connecticut
Photo of Patrick O'Shaughnessy, Partner at Positive Sum VC

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1 Investor

Connected to Jeff Baehr (RueOne Investments).

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$100K - $1M
$100K
11
$20M
CompanyStageDateRound SizeTotal Raised
Cubby Law
SeedAug 2025$3M
$3M
Co-investors: Jonathon Triest (Ludlow Ventures)
Passthrough
Series AFeb 2023$10M
SeedFeb 2022$5M
$15M
Co-investors: Eric Bahn (Hustle Fund), Adam Demuyakor (Wilshire Lane Capital), Sam Cates (Positive Sum VC), Robert Moore
Tegus
Series UnknownSep 2022$20M
$20M
Entrepreneurs First
Series CJun 2022$160M
$180M
Co-investors: Mustafa Suleyman (Greylock), Reid Hoffman (Greylock), Auren Hoffman (Flex Capital), Andrew J Scott (7percent Ventures), Will Neale (Passion Capital), Lachy Groom (LGF), Sarah Leary (Unusual Ventures), Matt Mullenweg (Audrey Capital), Nat Friedman (C2 Investment), John Collison, Claire Hughes Johnson, Zehan Wang, Tom Blomfield, Elad Gil
HumanCo
Convertible NoteSep 2021$35M
$35M
Co-investors: Joe Lonsdale (8VC), Kurt Seidensticker (The Family Fund), Chris Denny-Brown (O'Shaughnessy Ventures), Edward Norton, Anjula Acharia Bath, Nick Green, Venus Williams, Nick Jonas
Eight Sleep
Series CJun 2021
$250M
Co-investors: Trae Stephens (Founders Fund), Fred Ehrsam (Paradigm), Ryan Petersen (Founders Fund), Hemant Taneja (General Catalyst), Igor Ryabenkiy (Altair Capital Management), Jesse Robbins (Heavybit), Sophia Amoruso (Trust Fund), Jared Friedman (Y Combinator), Ankur Nagpal (Vibe Capital), Alex Rodriguez (Vision/Capital/People (VCP)), Geoffrey Woo (Anti fund), Avlok Kohli (AngelList), Todd Goldberg (Todd and Rahul's Angel Fund), Niv Dror (Shrug Capital), James Murphy (Proton Enterprises), Rahul Vohra (Todd and Rahul's Angel Fund), Kal Vepuri (Brainchild), Naval Ravikant (The Hit Forge), Kevin Hartz (A* Capital (A Star Capital)), Bryan Rosenblatt (Craft Ventures), Shawn Dimantha (Angel investor), Chris Moreno (Infinite Niches), Alexander Piskunov (KAAN Ventures), Jason Calacanis (LAUNCH), Kyle Vogt, Anthony Pompliano, Sahin Boydas, Kevin Hart, Marcy Simon, Scott Belsky, Babak Nivi, Matthew Dellavedova, Moshe Lifschitz, Sahil Lavingia, Karim Atiyeh
Prefect
Series AFeb 2021$12M
$56M
Co-investors: Sam Teller (LaunchPad), Nat Friedman (C2 Investment), Daniel Gross (C2 Investment), Anthony Goldbloom (AIX Ventures), Gavin Baker (Atreides Management), Chris Denny-Brown (O'Shaughnessy Ventures), Ethan Kurzweil (Chemistry VC), Morgan Livermore (Quiet Capital)
Bottomless
Series AJan 2021$5M
$5M
Co-investors: Dalton Caldwell (Y Combinator), Turner Novak (Banana Capital)