Fermi's CEO Steps Down Just 6 Months After Going Public—Here's What It Means

Toby Neugebauer, the co-founder and CEO of Fermi Inc., left his position on April 17, 2026—less than seven months after the Amarillo-based power and AI infrastructure company went public, according to SEC filings. The company's board brought in two executives to share leadership: Chief Operating Officer Jacobo Ortiz and board member Anna Bofa.

This departure is unusual. A founding CEO typically stays longer at a newly public company. In Neugebauer's case, he lasted exactly 198 days after Fermi's October 2024 debut on NASDAQ and the London Stock Exchange. The company had raised $682.5 million at a $16 billion valuation—a notable figure given that Fermi had no revenue at the time of the IPO.

The market reacted sharply. Fermi stock fell 20% in after-hours trading, settling at $5.27 per share. The stock had opened 19% above its initial offer price just months earlier, so this decline represents a significant loss for early investors.

Leadership Reshuffle and More Questions

The leadership changes didn't stop at the CEO departure. CFO Miles Everson also left but was promptly appointed to Fermi's board of directors. Everson's nomination came through a contractual mechanism tied to Neugebauer's trust, and the board expanded from five to seven members to accommodate the shift.

Fermi filed required disclosure paperwork but offered no public explanation for Neugebauer's exit. The company said it would share details about finding a replacement CEO on April 20, 2026.

After the departures, Fermi announced "Fermi 2.0," though the company provided limited information about what this new initiative entails.

Insiders Cashing Out

The leadership changes arrived against a backdrop of substantial insider selling. Jacobo Ortiz, who would become interim CEO, sold nearly 831,000 Fermi shares less than two weeks before announcing Neugebauer's departure—collecting roughly $3.9 million, according to regulatory filings.

That's not the biggest picture. Griffin Perry (son of former Energy Secretary Rick Perry) has sold more Fermi stock than Ortiz since the IPO. In total, four company insiders have sold shares worth nearly $68 million since late March. These are substantial paydays for early stakeholders.

The Nuclear Power Bet

Fermi operates as a specialized real estate investment vehicle focused on building data centers powered by nuclear energy. The company's main project aims to construct four nuclear plants next to a U.S. nuclear weapons facility, marketing itself to large cloud and AI companies that need enormous amounts of reliable, carbon-free electricity.

Rick Perry, a former Energy Secretary sitting on Fermi's board, has called the project the "world's largest energy-driven AI complex." The company says it is in talks with major data center operators about long-term contracts to lease power from these nuclear facilities.

The underlying bet is straightforward: AI training and inference—the compute-heavy work that powers everything from ChatGPT to image generation—consumes staggering amounts of electricity. Traditional power grids in major tech hubs are constrained. Small modular reactors (compact nuclear units designed to be built in factories rather than on-site) could provide dedicated, emissions-free power. Fermi is betting it can build and own this infrastructure.

How a Company Went Public This Fast

Fermi went from idea to publicly traded company in less than a year—an unusually rapid trajectory. Two factors explain this speed. First, investor appetite for AI infrastructure plays is intense right now. Second, Fermi structured itself as a REIT (Real Estate Investment Trust), a legal form that offers tax advantages and makes it easier to raise capital for large infrastructure projects. REITs typically go public faster than traditional companies.

Neugebauer brought credible energy sector experience to the venture. He is the son of retired congressman Randy Neugebauer and previously co-founded Quantum Energy Partners (now Quantum Capital Group), a private equity firm focused on energy deals.

Analysis: The Execution Challenge Ahead

Worth flagging: the departure of a founding CEO within seven months of an IPO at a company with no revenue and ambitious nuclear projects raises real questions about whether the business is ready to execute. A pre-revenue company pursuing nuclear facility construction is a high-stakes undertaking; consistent leadership and deep operational expertise matter enormously.

The timing of insider share sales relative to the CEO announcement may also draw regulatory attention. The sales were substantial and happened close to a major corporate event.

Fermi faces a complex path forward. The company must navigate regulatory approval processes for building nuclear facilities while simultaneously securing long-term contracts from major data center operators—both of which take years. Interim leadership managing a CEO search adds another layer of uncertainty during a critical period.

The REIT structure provides tax benefits and funding mechanisms, but it also limits operational flexibility during the building phase. With a temporary leadership structure in place while searching for a permanent CEO, stakeholders face genuine questions about whether the company can maintain momentum on such a complex, long-cycle project.

In this author's view, Fermi's core idea—dedicated nuclear power for AI workloads—makes sense given how much electricity AI infrastructure consumes and how constrained the power grid already is in key tech markets. But moving from concept to operational nuclear plants involves serious regulatory, technical, and business obstacles. That transition demands stable, experienced leadership and flawless execution. The market's sharp reaction to the CEO departure suggests investors share that concern.