By Sujan Pariyar
Senior Writer
Published: April 10, 2026 | Last Updated: April 10, 2026
OpenAI, the company powering ChatGPT, has officially closed one of the largest funding rounds in history — $122 billion in committed capital, pushing its post-money valuation to $852 billion as of March 31, 2026. A widely circulated reconstructed cap table, based on public filings, secondary-market data, and leaks first highlighted by investor Sheel Mohnot on X, now offers the clearest public view yet of who owns what — and who is cashing in.
The numbers are staggering: Microsoft’s roughly $13 billion total investment is now worth $228.3 billion (a ~17.6x return), SoftBank is already sitting on more than $50 billion in paper gains, and early backers like Khosla Ventures and Sound Ventures (Ashton Kutcher) have seen 30x–43x multiples. Meanwhile, CEO Sam Altman holds 0% equity, and the OpenAI Foundation (the nonprofit) owns 25.80% at zero cost basis while retaining full board control.
This article delivers the complete investor-by-investor breakdown, historical context, governance implications, and what it means for OpenAI’s expected 2026 IPO. For the full picture of OpenAI’s hybrid nonprofit/for-profit structure and founding history, read our definitive guide: Who Owns ChatGPT and OpenAI? Complete Guide.
OpenAI’s Corporate Structure (Quick Recap)
Since the October 2025 restructuring, OpenAI operates as OpenAI Group PBC (a Public Benefit Corporation) fully controlled by the OpenAI Foundation (nonprofit). The Foundation appoints and can remove all board members, ensuring mission alignment even as the for-profit arm raises massive capital. The Foundation now holds conventional equity alongside investors — a structure designed to balance growth with its original nonprofit mission.
Official confirmation is available on OpenAI’s structure page.
Full Reconstructed OpenAI Cap Table (April 2026 – $852 Billion Valuation)
The table below is reconstructed from the leaked cap table widely reported by Forbes, The VC Corner, and others. Percentages are on a fully diluted basis and reflect estimates; official SEC filings may vary slightly.
| Rank | Shareholder | Ownership % | Value at $852B | Est. Cost Basis | Unrealized Gain | Return Multiple |
|---|---|---|---|---|---|---|
| 1 | Microsoft | 26.79% | $228.3B | ~$13B | ~$215.3B | ~17.6x |
| 2 | OpenAI Foundation (Nonprofit) | 25.80% | $219.8B | $0 | $219.8B | Infinite |
| 3 | SoftBank Group | 11.66% | $99.3B | ~$64.6B | ~$34.7B+ | ~1.5x |
| 4 | Current & Former Employees | ~19–20% | ~$162–170B | Varies (ESOP/RSUs) | Substantial | High (varies) |
| 5 | Amazon | ~4.66%+ | ~$39.7B+ | Not disclosed | Positive | Varies |
| 6 | NVIDIA | ~3.47% | ~$29.6B | ~$30.1B | Flat/slight loss | ~1x |
| – | Other VCs (a16z, Sequoia, Thrive, D.E. Shaw, TPG, etc.) | ~7–8% | ~$60–68B | Varies | 30x–140x+ | Very High |
| – | Early Angels & Individuals (incl. Khosla, Sound Ventures) | ~0.4–1% | ~$3–8B | Very low | Extremely high | Up to 140x |
| – | ARK Invest ETFs / Retail (new) | ~0.05%+ | ~$0.4B+ | Recent | New | N/A |
| – | Sam Altman (CEO) | 0% | $0 | N/A | N/A | N/A |
Sources: Reconstructed cap table data from Forbes (April 2, 2026), The VC Corner, and secondary-market disclosures.
Key Investor Analysis & New Insights
Microsoft – The Unrivaled Winner With a 26.79% stake valued at $228.3 billion, Microsoft has turned its multi-year partnership into one of the most successful corporate investments ever. Its total outlay of ~$13 billion (starting 2019) now delivers a ~17.6x return. The Azure integration and revenue-sharing continue to provide strategic advantages beyond pure equity.
OpenAI Foundation – Mission-First Control Holding 25.80% worth $219.8 billion at zero cost, the nonprofit is now one of the world’s best-resourced philanthropic entities. It has already committed billions to health breakthroughs, AI resilience, and public-good initiatives. Crucially, it retains 100% board control, creating a unique “mission-protected” governance model.
SoftBank – Massive Scale, Solid Gains SoftBank’s $64.6 billion commitment (largest single cash outlay outside Microsoft) secures an 11.66% stake now valued at $99.3 billion — already up over $50 billion on paper. Co-leading the latest round alongside a16z and others, SoftBank’s involvement underscores its aggressive AI bet.
Employees – Creating Tech’s New Wealth Cohort Current and former staff own roughly 19–20%, translating to $162–170 billion in paper wealth. This includes generous RSU and option pools that have made many early engineers multi-millionaires (or billionaires).
Strategic Partners: Amazon, NVIDIA & More Amazon and NVIDIA anchored earlier tranches of the round with major commitments tied to cloud and GPU supply. Newer participants include ARK Invest (Cathie Wood’s ETFs) and ~$3 billion allocated to retail investors — a first for OpenAI, opening access via major banks ahead of the IPO.
Early VCs & Angels – Asymmetric Returns Firms like Khosla Ventures (30x on $50M), Sound Ventures (Ashton Kutcher, reportedly ~43x), and Peter Thiel-linked early backers have seen life-changing multiples from tiny 2015–2019 checks.
Sam Altman’s Zero Equity The CEO remains at 0% (“None/Pending”). Altman has publicly stated this choice was intentional to avoid conflicts, though he has noted it fueled unnecessary conspiracy theories.
OpenAI Valuation Journey: 2023–2026
- April 2023: $28 billion
- January 2024: $86 billion
- October 2024: $157 billion
- March 2025: $300 billion
- October 2025: $500 billion
- March 2026: $852 billion (post $122B round)
This 30x+ growth in three years is unprecedented in tech history.
What This Means for the Future: IPO, Governance & Risks
OpenAI is actively preparing for a 2026 IPO, potentially the largest tech debut since Google. However, internal tensions exist: CFO Sarah Friar has reportedly flagged the Q4 2026 timeline as “too aggressive” and raised concerns over Altman’s $600 billion five-year spending plan on infrastructure.
The nonprofit’s governance control remains a flashpoint (see Elon Musk’s ongoing lawsuit), but it also reassures regulators and the public that profit won’t override safety.
Philanthropic Impact: The Foundation’s massive stake will fund open-source health datasets, AI safety research, and global access initiatives — turning private AI wealth into public benefit.
For deeper context on how this hybrid model evolved from the 2023 board drama, revisit the article: Who Owns ChatGPT and OpenAI?.
Frequently Asked Questions (FAQ)
A: $852 billion post-money (March 31, 2026 funding round).
A: Microsoft (26.79%), followed closely by the OpenAI Foundation (25.80%).
A: No — 0% equity as of the latest cap table.
A: ~$215 billion unrealized gain on $13 billion invested (~17.6x).
A: Strong indications point to a 2026 IPO, though CFO concerns suggest possible delays.
A: Yes — approximately $3 billion of the latest round was opened to retail via banks and ETFs like ARK Invest.
Conclusion
The 2026 OpenAI cap table is more than a list of numbers — it’s a case study in 21st-century capitalism: mission-driven governance, unprecedented returns, and a nonprofit suddenly sitting on a $220 billion endowment. As OpenAI marches toward an IPO that could value it at $1 trillion or more, this structure will determine who benefits most from the AI revolution.
Whether you’re an investor, founder, or simply curious about the future of AI, understanding this cap table is essential. Bookmark this page and check back regularly — we will update it with any new filings or developments.
Sources: Official OpenAI announcements, Forbes cap table analysis (April 2, 2026), CNBC, Bloomberg, The VC Corner, PitchBook, and secondary-market data. This is not financial advice. All figures are estimates based on publicly available and leaked information as of April 10, 2026.
Be First to Comment