Investing Profile

Sam Altman

Photo of Sam Altman, Managing Partner at Hydrazine Capital
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Hydrazine Capital Managing Partner
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CompanyStageDateRound SizeTotal Raised
Series AJun 2019$30M
$36M
Co-investors: Robin Chan (Goat Capital), Jude Gomila (Jude Gomila Rolling Fund), Louis Beryl
Seed RoundOct 2018$2.5M
$2.5M
Co-investors: Paul Buchheit (Y Combinator)
Seed RoundAug 2018$5M
$5M
Co-investors: Louis Beryl
Series AMar 2018$10M
$10M
Seed RoundFeb 2018$4.3M
$22.3M
Co-investors: Josh Kopelman (First Round Capital), Hemant Taneja (General Catalyst), Raymond Tonsing (Caffeinated Capital), Chad Byers (Susa Ventures), Elad Gil
Series DJan 2018$75M
Series CMar 2016$50M
$213.2M
Co-investors: Marc Andreessen (Andreessen Horowitz), Matt Cohler (Benchmark), Peter Thiel (Founders Fund), Mitch Kapor (Kapor Capital), Ron Conway (SV Angel), Ben Horowitz (Andreessen Horowitz), Aditya Agarwal (South Park Commons), Ruchi Sanghvi (South Park Commons), Zach Ware (VTF Capital), Mitchell Green, David Jeske, Jed Stremel, Eric Ries, mitch kapor
Series CAug 2017$200M
Series BSep 2014$50M
$250M
Co-investors: Ron Conway (SV Angel), Marc Andreessen (Andreessen Horowitz), Alfred Lin (Sequoia Capital), Michael Abramson (Sequoia Capital), Rick Marini (Catapult Capital), Calvin Broadus (Casa Verde Capital), Paul Buchheit (Y Combinator), Joshua Kushner (Thrive Capital), Yun-Fang Juan, Yishan Wong, Philip Kaplan, Kevin Hartz, Edward Lando
Series BMay 2017
Seed RoundNov 2013$2.4M
$29.4M
Co-investors: Pat Kinsel (Polaris Partners), Garry Tan (Initialized Capital), Eric Kwan (Locus Ventures), Geoff Bernstein (Indicator Ventures), Tak Miyata (Scrum Ventures), Paul Buchheit (Y Combinator), Alexis Ohanian (Seven Seven Six), Joshua Schachter, Rohit Jain
Series DMay 2017$30M
Series CDec 2014$25M
$70M
Co-investors: Ev Williams (Obvious Ventures), Kevin Colleran (Slow Ventures), Reid Hoffman (Greylock), sundeep ahuja (Duro Ventures), Nasir Jones (QueensBridge Venture Partners), Katie Stanton (Moxxie Ventures), Guy Oseary (A-Grade), Gideon Yu (formation|8), Ariel Poler (Human Augmentation Syndicate), Anthony Saleh, Ashton Kutcher, Evan Williams, Richard Branson, Hadi Partovi
Seed RoundMay 2017$1.8M
$1.8M
Co-investors: James Sowers (GreaterGoodSociety), Chris Howard (Fuel Capital), David Petersen, Immad Akhund, Ryan Petersen, Samvit Ramadurgam, Sohail Prasad