Westinghouse Files for IPO at Over $50 Billion Valuation Under 2025 US-Cameco-Brookfield Reactor Deal

The 2017 Toshiba bankruptcy stemmed from fixed-price construction overruns at Vogtle and Summer. Brookfield acquired the assets for $4.6 billion in 2018, shifted emphasis to services and technology through eight acquisitions including Rolls-Royce systems and Tecnatom, then sold 49 percent to Cameco in 2023 at an $8.2 billion enterprise value. The current filing occurs as the 2025 US agreement converts a 20 percent distribution interest above $17.5 billion into a warrant exercisable post-IPO. Cameco’s 2026 Q2 call confirmed Brookfield and Cameco retain control post-listing. The US interest vests only after final investment decisions and binding commitments; an IPO at $30 billion or higher could allow Washington to force the process by January 2029. Actual reactor construction remains at zero new AP1000 starts since the pledge, while federal financing and permitting support constitute the documented incentive structure. The valuation multiple of roughly eleven times the 2018 purchase price reflects scarcity pricing for Western nuclear supply-chain capacity rather than completed megawatts. Primary records show no change in ownership thresholds or project execution timelines tied directly to the filing.