Who owns Cerebras? Ownership structure explained (2026)

Cerebras Systems completed one of the most closely watched AI hardware IPOs in years. The Sunnyvale-based chipmaker, which designs wafer-scale processors purpose-built for AI training and inference, priced its IPO at $185 per share on May 13, 2026, above its marketed range, and began trading on the Nasdaq the next day. The stock closed its first session up 68%, valuing Cerebras at about $95 billion.

But behind that debut sits an ownership structure that raises questions most chip companies never face. A UAE-linked investor triggered a national security review. A single customer, OpenAI, is also a lender and shareholder. And the founders locked in near-total voting control through a multi-class share structure that survived the public listing.

Understanding who owns Cerebras matters because ownership shapes strategy, governance, and risk. This article breaks down the company's founders, major investors, share class mechanics, regulatory history, and the key people who control the company now that it trades publicly.

Cerebras Systems builds AI-specific hardware centered on its wafer-scale engine (WSE), the largest chip ever made. While most AI processors are cut from standard silicon wafers, Cerebras uses the entire wafer as a single chip — a design that dramatically increases compute density for training and running large AI models.

The company was founded in 2015 or 2016 (sources differ on the exact year) by Andrew Feldman, Gary Lauterbach, Michael James, Sean Lie, and Jean-Philippe Fricker. All five co-founders remain with the company. Feldman serves as CEO, Lauterbach as CTO, James as Chief Architect (Advanced Technologies), Lie as Chief Hardware Architect, and Fricker as Chief System Architect.

Cerebras is headquartered in Sunnyvale, California, and is incorporated in the United States. It went public in May 2026 at an IPO price that valued it near $55 billion, then closed its first day at about $95 billion. The stock has since given back much of that pop: as of early July 2026 it trades near $215, a market cap of roughly $60 billion. Cerebras competes in the AI accelerator market against Nvidia, AMD, and a growing field of custom silicon efforts from hyperscalers like Google and Amazon.

The most important thing to understand about who owns Cerebras is the gap between economic ownership and voting power. The company uses a multi-class share structure with three distinct classes:

All Class B shares together represent roughly 99.2% of total voting power. That keeps control with the pre-IPO insiders who hold them: the founders, directors, and large early investors, rather than the Class A public float. Feldman and his co-founders retain effective control over board composition, strategic direction, executive compensation, and any potential acquisition, regardless of how much economic ownership public shareholders hold.

Feldman did not sell shares in the IPO. He holds 10.3 million Class B shares, about 5% of the company's voting power and a stake worth close to $2 billion at the IPO price. Co-founder Gary Lauterbach's pre-IPO equity stake has been estimated at 5–10%, though specific stakes for the other three co-founders have not been publicly disclosed.

Cerebras has raised billions in private capital across multiple rounds, with its investor base evolving significantly over time.

Early-stage backers: Benchmark, led by Bill Gurley, was the lead investor in Cerebras's seed/Series A round. Andy Bechtolsheim, co-founder of Sun Microsystems, also made a strategic angel investment at this stage.

Growth-stage investors: The Series F round in November 2021, led by Alpha Wave Global and UAE-based G42, valued the company at over $4 billion and introduced sovereign-linked capital into the cap table. This round would later trigger significant regulatory scrutiny.

Late-stage investors: The September 2025 Series G raised $1.1 billion at an $8.1 billion valuation, led by Fidelity Management and Research and Atreides Management. Other notable co-investors across rounds include Coatue Management, Altimeter Capital, Foundation Capital, Eclipse Ventures, and Sequoia Capital.

Pre-IPO capital: In February 2026, the Series H raised an additional $1 billion, tripling the valuation to $23 billion. The lead investor for this round has not been publicly identified.

OpenAI occupies a unique position in Cerebras's ownership story. In January 2026 the two companies signed a multi-year compute agreement worth more than $20 billion for 750 megawatts of capacity, running through 2028. As part of that deal, OpenAI took warrants to buy Cerebras stock and provided a $1 billion working capital loan. In March 2026, Amazon Web Services added its own partnership to run Cerebras chips, and Amazon holds warrants too.

That makes OpenAI at once a major customer, a lender, and a shareholder, three roles that rarely converge in one relationship. Analysts and SEC filings have flagged the arrangement as a potential conflict of interest, since OpenAI's commercial decisions directly affect Cerebras's revenue while its financial instruments give it leverage over the company's balance sheet.

Cerebras priced its IPO on May 13, 2026, selling 30 million Class A shares at $185 each, above its marketed range. The offering raised $5.55 billion, or up to $6.38 billion if underwriters exercise their option on 4.5 million additional shares, making it the largest U.S. tech IPO since Uber in 2019. The stock opened at $350 on May 14, peaked at $386, and closed at $311.07, up 68%, for a first-day market cap near $95 billion.

The underwriting syndicate was led by Morgan Stanley, Citigroup, Barclays, and UBS. Shares trade on the Nasdaq Global Select Market under the ticker CBRS. The debut pop did not hold: after a weak first earnings report in June, the stock traded near $215 by early July 2026, a market cap of about $60 billion.

Feldman co-founded Cerebras and has served as CEO since inception. Before Cerebras, he founded SeaMicro, a server company that AMD acquired for $334 million. That exit gave him credibility in silicon design and a network of engineers he later recruited to build the wafer-scale engine.

Feldman's 10.3 million Class B shares, each carrying 20 votes, keep him among the company's most powerful decision-makers, with about 5% of the total vote. He did not sell shares in the IPO, signaling long-term commitment and preserving his voting position.

All five co-founders remain active in the company. Gary Lauterbach (CTO), Michael James (Chief Architect, Advanced Technologies), Sean Lie (Chief Hardware Architect), and Jean-Philippe Fricker (Chief System Architect) hold Class B shares alongside Feldman. Class B stock collectively carries roughly 99.2% of voting power, held by the founders together with directors and large early investors.

The identity of Cerebras's board chair has not been publicly disclosed in available filings as of July 2026.

Cerebras's path to public markets has been anything but straightforward. A CFIUS investigation, an IPO withdrawal, a massive customer deal, and three funding rounds in under a year have reshaped the company's ownership structure in rapid succession.

Cerebras's first attempt to go public in 2024 was derailed by a national security investigation from the Committee on Foreign Investment in the United States (CFIUS). The probe centered on G42, a UAE-based AI firm that had invested in Cerebras during the Series F round.

Two factors made G42's involvement particularly sensitive. First, G42 had historical ties to Chinese entities — a red flag for U.S. regulators overseeing companies that design advanced AI chips. Second, G42 accounted for 87% of Cerebras's revenue in the first half of 2024, raising concerns about foreign influence over a strategically important U.S. technology company.

The review was resolved on March 31, 2025. G42 agreed to divest its Chinese investments and restructure its $335 million equity holding in Cerebras into non-voting Class N shares. This effectively stripped G42 of any governance influence while allowing it to retain economic exposure.

With G42's revenue share declining, OpenAI emerged as Cerebras's largest commercial partner. G42 fell to about 24% of revenue in 2025, down from 85% in 2024, but customer concentration did not go away: a single UAE customer, the Mohamed bin Zayed University of Artificial Intelligence, accounted for roughly 62% of 2025 revenue. OpenAI's role is more tangled still, as a major customer, a $1 billion lender, and a warrant holder at once, which has drawn scrutiny from public-market analysts.

The concern is straightforward: OpenAI's decisions about compute procurement directly affect Cerebras's revenue, while its financial instruments create dependencies that go beyond a standard arm's-length commercial relationship. SEC filings have flagged these overlapping roles as a governance risk that investors should weigh carefully.

Cerebras's ownership structure will shape the company's trajectory in several concrete ways.

Product strategy: With near-total voting control, the founding team can pursue long-term hardware bets — like wafer-scale computing — without pressure from activist investors or short-term earnings demands. That's a meaningful advantage in a capital-intensive industry where chip design cycles span years.

Customer risk: The concentration of revenue in a small number of large customers, first G42 and now OpenAI, means ownership and commercial relationships are deeply intertwined. If OpenAI shifts its compute strategy, the impact on Cerebras would be both financial and structural.

Governance: Public shareholders buying Class A shares in the IPO are purchasing economic exposure with minimal voting rights. The 20:1 vote ratio on Class B shares means the founders can approve or block any major corporate action indefinitely. For investors, this is a feature or a bug depending on how much you trust the founding team's judgment.

Geopolitical exposure: The G42 episode demonstrated that ownership composition can become a regulatory liability in the AI chip sector, where national security considerations increasingly influence who can own, invest in, or buy from advanced semiconductor companies.

Andrew Feldman is the co-founder and CEO of Cerebras. He has led the company since its founding in 2015/2016. Previously, he founded SeaMicro, which AMD acquired for $334 million. Feldman holds 10.3 million Class B shares, about 5% of the vote, and did not sell shares in the IPO.

Yes. Cerebras went public on May 14, 2026, and trades on the Nasdaq Global Select Market under the ticker CBRS. It priced its IPO at $185 per share, sold 30 million shares to raise $5.55 billion, and closed its first day at a market cap near $95 billion. As of early July 2026 the stock trades around $215, a market cap of roughly $60 billion.

Cerebras was co-founded by five people: Andrew Feldman (CEO), Gary Lauterbach (CTO), Michael James (Chief Architect, Advanced Technologies), Sean Lie (Chief Hardware Architect), and Jean-Philippe Fricker (Chief System Architect). All five remain with the company as of July 2026.

The co-founders hold outsized control through Class B shares, which carry 20 votes each; all Class B stock together represents roughly 99.2% of voting power. By economic stake, Fidelity controls about 11% and Benchmark about 9%. Other major holders include Alpha Wave Global, G42 (non-voting Class N shares), Coatue Management, and OpenAI, which holds warrants.

OpenAI signed a multi-year compute agreement with Cerebras worth more than $20 billion, covering 750 megawatts of capacity through 2028. As part of the deal, OpenAI also took warrants to buy Cerebras stock and provided a $1 billion working capital loan. That combination, customer, lender, and shareholder, has been flagged by analysts as an unusual arrangement with potential conflict-of-interest implications.