Private company
Who owns Gulf Coast Express Pipeline LLC (GCX)
One company in the researched set discloses a stake in Gulf Coast Express Pipeline LLC (GCX), worth $630m between them. Gulf Coast Express Pipeline LLC (GCX) 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.
- Kinder Morgan, Inc., as of 31 Dec 2025. Equity-method joint venture interest, not a share count. FY2025 10-K states 34% ownership and a $630 million carrying value at 31 Dec 2025 ($566 million at 31 Dec 2024). KMI's Q2 2026 10-Q separately notes higher cash contributions to GCX during H1 2026 (part of a $73 million increase in contributions to equity investees) without resizing the position. sourcesource 2
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 Gulf Coast Express Pipeline LLC (GCX) where a holder stated one, and are missing where no holder did.