Private company
Who owns Prairie Wind Transmission, LLC
One company in the researched set discloses a stake in Prairie Wind Transmission, LLC, none of it sized by anyone who discloses it. Prairie Wind Transmission, LLC 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.. Ownership percentage is from the AEP Transmission Holding Company (AEPTHCo) Joint Ventures summary table in the FY2025 10-K's MD&A (in-service since 2014; net PP&E of $121 million at 31 December 2025, an unallocated project-level figure, not AEP's carrying value). Note 18 (Equity Method Investments in Unconsolidated Entities) names only ETT and GWAI with dollar carrying values; Prairie Wind's carrying value is folded into AEP's broader $4,402 million 'Deferred Charges and Other Noncurrent Assets' balance at 31 December 2025 ($3,873 million at 31 December 2024), which is not split by investee and also contains unrelated deferred charges, so no carrying value can be attributed to Prairie Wind alone. 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 Prairie Wind Transmission, LLC where a holder stated one, and are missing where no holder did.