Private company
Who owns Appalachia Midstream Investments (Bradford Supply Hub and Marcellus South gathering systems)
One company in the researched set discloses a stake in Appalachia Midstream Investments (Bradford Supply Hub and Marcellus South gathering systems), worth $2.74bn between them. Appalachia Midstream Investments (Bradford Supply Hub and Marcellus South gathering systems) 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.
- The Williams Companies, Inc., as of 31 Dec 2025. Equity-method LLC/partnership interests, not denominated in shares, so shares is null. FY2025 10-K Note 8 equity-method investments table reports this as ONE combined line: 'Appalachia Midstream Investments $2,737 $2,810' (2025 and 2024), footnoted 'Includes equity-method investments in multiple gathering systems in the Marcellus Shale region with an approximate average 66 percent interest.' The $2,737 million is the filing's own combined figure for this named group (it does not further split Bradford Supply Hub from Marcellus South), so it is used as-is rather than apportioned; Laurel Mountain, though also an Appalachian Marcellus-area gathering asset, has its own separate line in the same table and is reported as its own holding above. 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 Appalachia Midstream Investments (Bradford Supply Hub and Marcellus South gathering systems) where a holder stated one, and are missing where no holder did.