Private company
Who owns Hitachi-GE Nuclear Energy, Ltd.
One company in the researched set discloses a stake in Hitachi-GE Nuclear Energy, Ltd., worth $184m between them. Hitachi-GE Nuclear Energy, Ltd. is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
Hitachi-GE Nuclear Energy, Ltd. - Profile
- Type
- joint venture
- Based in
- Japan
- Founded
- 2007
Hitachi-GE Nuclear Energy, Ltd., renamed Hitachi GE Vernova Nuclear Energy, Ltd. on 1 June 2025, is the Japanese arm of the nuclear alliance formed by Hitachi and General Electric in June 2007, and it is based in Tokyo. It carries out research, development, design, manufacturing, construction and maintenance of nuclear power plants, principally boiling water reactors, and has delivered 23 reactors in Japan; its service range covers new build, preventive maintenance and decommissioning. Hitachi contributes the manufacturing, modular construction and Japanese plant base while GE contributes the reactor design lineage, and the pairing outside Japan operates separately as GE Vernova Hitachi Nuclear Energy. The company supplies reactor internals, fine motion control rod drives and hydraulic control units for Ontario Power Generation's Darlington small modular reactor project, sourcing the first unit's components from Japanese suppliers.
Source
Hitachi-GE Nuclear Energy, Ltd. files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from Hitachi-GE Nuclear Energy announces supply of key reactor components for OPG's Darlington New Nuclear Project (Hitachi), GE Vernova Hitachi Nuclear Energy (Wikipedia) and GE, Hitachi Forge Global Alliance in Nuclear Industry (GE). The ownership figures below come from the holders' filings instead, and are sourced row by row.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- GE Vernova Inc., as of 31 Dec 2025. Equity method investment balance from GE Vernova FY2025 Form 10-K, Note 11: 20% ownership, balance $184 million at both 31 Dec 2025 and 31 Dec 2024 (income of $12 million in 2025, a loss of $12 million in 2024). No updated per-entity figure at 30 June 2026; the Q2 2026 10-Q only discloses the combined Power-segment equity method balance ($938 million), which this JV sits within. source
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Hitachi-GE Nuclear Energy, Ltd. where a holder stated one, and are missing where no holder did.