Private company
Who owns Gigawatt AI, Inc. (GWAI)
One company in the researched set discloses a stake in Gigawatt AI, Inc. (GWAI), worth $150m between them. Gigawatt AI, Inc. (GWAI) 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.
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.
- American Electric Power Company, Inc., as of 30 Jun 2026. AEP invested $100 million in August 2025 for an initial 10% ownership interest in GWAI common stock, plus a warrant to acquire an additional 5% for $50 million (warrant not included in this holding's shares or value). In January and April 2026 AEP made two further $25 million milestone-based investments, each for an incremental 2.5% interest. As of 30 June 2026 AEP holds 15% of GWAI's common stock with a cumulative cost-basis investment of $150 million, accounted for as an equity method investment (AEP has the right to designate one of GWAI's three board seats). In July 2026 AEP confirmed GWAI had achieved two further performance milestones and additional investment was pending close in Q3 2026, not yet reflected in this figure. 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 Gigawatt AI, Inc. (GWAI) where a holder stated one, and are missing where no holder did.