# Sam Altman, Partner at Apollo Projectcs > Sam Altman, Partner at Apollo Projectcs. 49 investments on record. The rounds they were named in and the filings that name them, each with its source. Source: https://millionrounds.com/person/sam-altman (Millionrounds; every figure on the page links to its filing or article) San Francisco, US · Partner # Sam Altman Partner at Apollo Projectcs Email Stages *Seed* *Series A* *Series B* Backs *Biotech* *AI* *Aerospace & Space* *Wellness* Latest rounds - **Longshot Space Technologies** Venture · $5M Jun 2026 - **Retro Biosciences** Venture May 2026 - **Red Queen Bio** Seed · $15M Mar 2026 Follow Sam Altman and see their new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fperson%2Fsam-altman) Profile summary - **Rounds named:** 49 last Jun 2025 - **Filings:** 7 with regulators - **Books:** 1 written What this record rests on - ✓ **Named in rounds** 49 rounds name them - ✓ **On filings** 7 filings with a regulator - ✓ **Own investor record** Their cheques, held under their name - **Claimed** Not claimed yet Titles come from filings their firm signed. [Correct or remove](https://millionrounds.com/corrections?person=sam-altman)[Is this you? Claim it](https://millionrounds.com/claim?person=sam-altman) ## Their investor record [**Sam Altman, investing** Every cheque we watched them write, on one record **3** cheques in 12 months **82** all time **0** led deploying](https://millionrounds.com/fund/sam-altman) ## Rounds they were named in - **Rounds:** 82 - **Led:** 0 - **Disclosed:** $3.1B - **Active:** 2010–26 2026 - [Longshot Space Technologies](https://millionrounds.com/company/longshot-space-technologies) *Venture* **$5M** *US* Jun 2026 Joined · +3 investors - [Retro Biosciences](https://millionrounds.com/company/retro-biosciences) *Venture* *US* May 2026 Joined - [Red Queen Bio](https://millionrounds.com/company/red-queen-bio) *Seed* **$15M** *US* Mar 2026 Joined · +4 investors 2025 - [Arcadia Medicine](https://millionrounds.com/company/arcadia-medicine) *Seed* **$9.3M** *US* Oct 2025 Joined - [teachme.to](https://millionrounds.com/company/teachme-to) *Seed* **$3M** *US* Sept 2025 Joined · +4 investors - [Coco Robotics](https://millionrounds.com/company/coco-robotics) *Round* **$80M** *US* Jun 2025 Joined · +3 investors - [Longshot Space Technologies](https://millionrounds.com/company/longshot-space-technologies) *Venture* *US* Jun 2025 Joined · +2 investors - [coco](https://millionrounds.com/company/coco) *Series B* **$80M** *MX* Jun 2025 Joined · +2 investors - [Helion Energy](https://millionrounds.com/company/helion-energy) *Series f* **$425M** *US* Jan 2025 Joined · +10 investors - [Retro Biosciences](https://millionrounds.com/company/retro-biosciences) *Series A* **$1B** *US* Jan 2025 Joined - [Ashvattha Therapeutics](https://millionrounds.com/company/ashvattha-therapeutics) *Series B* **$50M** *US* Jan 2025 Joined · +1 investor 2024 - [NOYACK](https://millionrounds.com/company/noyack) *Seed* **$3M** *US* Dec 2024 Joined · +1 investor By stage - Seed **40** - Series A **13** - Venture **9** - Series B **7** - Round **3** What they backed Biotech **4** AI **4** Aerospace & Space **3** Wellness **2** Pharma **2** Delivery **1** Alongside - [Draper Associates *2*](https://millionrounds.com/fund/draper-associates) - [Gaingels *2*](https://millionrounds.com/fund/gaingels) - [Pelion Venture Partners *2*](https://millionrounds.com/fund/pelion-venture-partners) - [1984 Ventures *1*](https://millionrounds.com/fund/1984-ventures) - [Alumni Ventures *1*](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) - [Bling Capital *1*](https://millionrounds.com/fund/bling-capital) - [Capricorn Investment Group *1*](https://millionrounds.com/fund/capricorn-investment-group) - [Cerberus Ventures *1*](https://millionrounds.com/fund/cerberus-ventures) The latest 12 of 82. Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names. ## Where they are named on record Filings - SEC Form D · Company raising **Tools for Humanity Corp** Executive Officer, Director since 2022 - SEC Form D · Company raising **Journey Colab Corp.** Director since 2021 - SEC Form D · Venture Capital fund **[OpenAI](https://millionrounds.com/fund/openai)** Manager of the General Partner on 2 filings · since 2021 - SEC Form D · Venture Capital fund **[APOLLO PROJECTS SPV-B](https://millionrounds.com/fund/apollo-projects-spv-b)** MANAGING MEMBER OF THE GENERAL PARTNER OF THE ISSUER since 2021 - SEC Form D · Company raising **Tools for Humanity Corp** Director since 2021 - SEC Form D · Company raising **Reddit, Inc.** Director on 4 filings · since 2017 - SEC Form D · Company raising **Helion Energy, Inc.** Director since 2015 Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date. ## Their book - Startup Playbook Sam Altman 4.47 from 595 ratings on Goodreads About the book http://playbook.samaltman.com/.. We spend a lot of time advising startups. Though one-on-one advice will always be crucial, we thought it might help us scale Y Combinator if we could distill the most generalizable parts of this advice into a sort of playbook we could give YC… On AmazonListen on Audible - Find the books for what you are building, or how you invest. [Open the Reading List](https://millionrounds.com/reading-list) As an Amazon Associate we earn from qualifying purchases. ## Find people like Sam Filter every partner and angel by firm, kind, market and whether we watched them invest. Free with an account. Search people[How we know what we know](https://millionrounds.com/methodology)