• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechOpenAI

Microsoft says it’s not an OpenAI shareholder as British antitrust watchdog examines relationship

By
Dina Bass
Dina Bass
,
Leah Nylen
Leah Nylen
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Dina Bass
Dina Bass
,
Leah Nylen
Leah Nylen
and
Bloomberg
Bloomberg
Down Arrow Button Icon
December 8, 2023, 5:11 PM ET
Microsoft CEO Satya Nadella speaks during the OpenAI DevDay event last month in San Francisco.
Microsoft CEO Satya Nadella speaks during the OpenAI DevDay event last month in San Francisco.Justin Sullivan—Getty Images

With global regulators examining Microsoft Corp.’s $13 billion investment in OpenAI, the software giant has a simple argument it hopes will resonate with antitrust officials: It doesn’t own a traditional stake in the buzzy startup so can’t be said to control it.

Recommended Video

When Microsoft negotiated an additional $10 billion investment in OpenAI in January, it opted for an unusual arrangement, people familiar with the matter said at the time. Rather than buy a chunk of the cutting-edge artificial intelligence lab, it cut a deal to receive almost half of OpenAI’s financial returns until the investment is repaid up to a pre-determined cap, one of the people said. The unorthodox structure was concocted because OpenAI is a capped for-profit company housed inside a non-profit organization.

It’s not clear regulators see a distinction, however. On Friday the UK Competition and Markets Authority said it was gathering information from stakeholders to determine whether the collaboration between the two firms threatens competition in the UK, home of Google’s AI research lab Deepmind. The US Federal Trade Commission is also examining the nature of Microsoft’s investment in OpenAI and whether it may violate antitrust laws, according to a person familiar with the matter.

The inquiries are preliminary and the agency hasn’t opened a formal investigation, according to the person, who asked not to be named discussing a confidential matter.

Microsoft didn’t report the transaction to the agency because the investment in OpenAI doesn’t amount to control of the company under US law, the person said. OpenAI is a non-profit and acquisitions of non-corporate entities aren’t reported under US merger law, regardless of value. Agency officials are analyzing the situation and assessing what its options are.

“While details of our agreement remain confidential, it is important to note that Microsoft does not own any portion of OpenAI and is simply entitled to a share of profit distributions,” a Microsoft spokesperson said in a statement. Earlier Friday, Microsoft President Brad Smith said “the only thing that has changed is that Microsoft will now have a non-voting observer on OpenAI’s board.” He described its relationship with OpenAI as “very different” from Google’s outright acquisition of DeepMind in the UK.

“Our partnership with Microsoft empowers us to pursue our research and develop safe and beneficial AI tools for everyone, while remaining independent and operating competitively. Their non-voting board observer does not provide them with governing authority or control over OpenAI’s operations,” said an OpenAI spokesperson in a statement.

From the beginning, Microsoft and OpenAI took pains to telegraph the two companies’ independence. Microsoft hoped to reassure investors and customers that it’s not overly reliant on one partner. OpenAI didn’t want employees, customers and other investors thinking it was merely an outpost of Redmond, Washington-based Microsoft. That careful positioning was upended last month with the firing of OpenAI Chief Executive Officer Sam Altman and the startup’s near implosion.

The Altman imbroglio demonstrated both Microsoft’s lack of control and its influence. Microsoft received just minutes notice that the OpenAI board planned to announce Altman’s ouster, and its executives were not consulted in the decision. Still Microsoft CEO Satya Nadella played a key role, along with other investors, in forcing the board to reverse its decision. At one point Microsoft said it would hire Altman and his OpenAI colleagues to form a new Microsoft AI unit.

Once Altman was restored as CEO, Microsoft executives debated the wisdom of taking a seat on the OpenAI board, people familiar with the matter said at the time. On the one hand, executives feared that a board seat or observer slot might draw the attention of regulators. On the other hand, Microsoft wanted to keep a closer eye on its partner and protect its investment—an imperative that carried the day, despite the risks.

Ultimately, Microsoft could face a world of regulatory headaches. Regulators in Europe are also paying attention, according to a spokesperson for the European Commission. In order for a transaction to be notifiable to the Commission under the EU Merger Regulation, it has to involve a change of control on a lasting basis. While this transaction has not been formally notified, the Commission had been following the situation even before the management turmoil, the spokesperson said.

Last month, Germany’s competition authority said it wasn’t subjecting Microsoft’s OpenAI investment to a merger review. But the regulator said they would hold off only because OpenAI didn’t have substantial business in Germany. After reviewing the transaction and talking the companies, the regulator found the investment would give Microsoft a “material competitive influence” over the AI company that might warrant scrutiny in the future if OpenAI increases its activities in Germany.

The partnership raises competition issues if Microsoft cuts back on its own AI research and development or if the investment keeps OpenAI from partnering with the tech giant’s rivals, said Bloomberg Intelligence antitrust analyst Jennifer Rie. Antitrust enforcers may also have concerns about Microsoft’s board observer since it would give Microsoft additional information on OpenAI’s plans even if it doesn’t have rights to influence the decisions.

— With assistance from Thomas Seal and Samuel Stolto

Fortune Brainstorm AI returns to San Francisco Dec. 8–9 to convene the smartest people we know—technologists, entrepreneurs, Fortune Global 500 executives, investors, policymakers, and the brilliant minds in between—to explore and interrogate the most pressing questions about AI at another pivotal moment. Register here.
About the Authors
By Dina Bass
See full bioRight Arrow Button Icon
By Leah Nylen
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Tech

Big TechSpotify
Spotify users lamented Wrapped in 2024. This year, the company brought back an old favorite and made it less about AI
By Dave Lozo and Morning BrewDecember 4, 2025
10 hours ago
InnovationVenture Capital
This Khosla Ventures–backed startup is using AI to personalize cancer care
By Allie GarfinkleDecember 4, 2025
14 hours ago
AIEye on AI
Companies are increasingly falling victim to AI impersonation scams. This startup just raised $28M to stop deepfakes in real time
By Sharon GoldmanDecember 4, 2025
14 hours ago
Jensen Huang
SuccessBillionaires
Nvidia CEO Jensen Huang admits he works 7 days a week, including holidays, in a constant ‘state of anxiety’ out of fear of going bankrupt
By Jessica CoacciDecember 4, 2025
14 hours ago
Ted Pick
BankingData centers
Morgan Stanley considers offloading some of its data-center exposure
By Esteban Duarte, Paula Seligson, Davide Scigliuzzo and BloombergDecember 4, 2025
14 hours ago
Zuckerberg
EnergyMeta
Meta’s Zuckerberg plans deep cuts for metaverse efforts
By Kurt Wagner and BloombergDecember 4, 2025
15 hours ago

Most Popular

placeholder alt text
Economy
Two months into the new fiscal year and the U.S. government is already spending more than $10 billion a week servicing national debt
By Eleanor PringleDecember 4, 2025
20 hours ago
placeholder alt text
Success
‘Godfather of AI’ says Bill Gates and Elon Musk are right about the future of work—but he predicts mass unemployment is on its way
By Preston ForeDecember 4, 2025
15 hours ago
placeholder alt text
North America
Jeff Bezos and Lauren Sánchez Bezos commit $102.5 million to organizations combating homelessness across the U.S.: ‘This is just the beginning’
By Sydney LakeDecember 2, 2025
3 days ago
placeholder alt text
Success
Nearly 4 million new manufacturing jobs are coming to America as boomers retire—but it's the one trade job Gen Z doesn't want
By Emma BurleighDecember 4, 2025
16 hours ago
placeholder alt text
Success
Nvidia CEO Jensen Huang admits he works 7 days a week, including holidays, in a constant 'state of anxiety' out of fear of going bankrupt
By Jessica CoacciDecember 4, 2025
14 hours ago
placeholder alt text
Health
Bill Gates decries ‘significant reversal in child deaths’ as nearly 5 million kids will die before they turn 5 this year
By Nick LichtenbergDecember 4, 2025
1 day ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.