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), Lachy Groom (LGF), Sarah Leary (Unusual Ventures), Matt Mullenweg (Audrey Capital), Nat Friedman (C2 Investment), Will Neale (Passion Capital), Tom Blomfield, Zehan Wang, Elad Gil, Claire Hughes Johnson, John Collison
HumanCo
Convertible NoteSep 2021$35M
$35M
Co-investors: Joe Lonsdale (8VC), Kurt Seidensticker (The Family Fund), Chris Denny-Brown (O'Shaughnessy Ventures), Nick Jonas, Edward Norton, Anjula Acharia Bath, Nick Green, Venus Williams
Eight Sleep
Series CJun 2021
$250M
Co-investors: Fred Ehrsam (Paradigm), Ryan Petersen (Founders Fund), Trae Stephens (Founders Fund), Igor Ryabenkiy (Altair Capital Management), Naval Ravikant (The Hit Forge), Jesse Robbins (Heavybit), Sophia Amoruso (Trust Fund), Alex Rodriguez (Vision/Capital/People (VCP)), Ankur Nagpal (Vibe Capital), Jason Calacanis (LAUNCH), Jared Friedman (Y Combinator), Kevin Hartz (A* Capital (A Star Capital)), Bryan Rosenblatt (Craft Ventures), Shawn Dimantha (Angel investor), Chris Moreno (Infinite Niches), Alexander Piskunov (KAAN Ventures), 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), Kevin Hart, Karim Atiyeh, Matthew Dellavedova, Sahin Boydas, Sahil Lavingia, Moshe Lifschitz, Dan Romero, Anthony Pompliano, Babak Nivi, Scott Belsky, Marcy Simon, Kyle Vogt
Prefect
Series AFeb 2021$12M
$56M
Co-investors: Ethan Kurzweil (Chemistry VC), Morgan Livermore (Quiet Capital), Chris Denny-Brown (O'Shaughnessy Ventures), Sam Teller (LaunchPad), Nat Friedman (C2 Investment), Daniel Gross (C2 Investment), Anthony Goldbloom (AIX Ventures), Gavin Baker (Atreides Management)
Bottomless
Series AJan 2021$5M
$5M
Co-investors: Dalton Caldwell (Y Combinator), Turner Novak (Banana Capital)