Private company
Who owns Atlantic Methanol Production Company LLC (AMPCO)
One company in the researched set discloses a stake in Atlantic Methanol Production Company LLC (AMPCO), none of it sized by anyone who discloses it. Atlantic Methanol Production Company LLC (AMPCO) 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.
- ConocoPhillips. No carrying value is disclosed for AMPCO anywhere in the FY2025 10-K or the Q2 FY2026 10-Q; only the 45 percent ownership interest is stated (FY2025 10-K, Item 1/2 business description). The position is deliberately left unsized rather than estimated. The Q2 FY2026 10-Q does not contain the string 'AMPCO' at all. 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 Atlantic Methanol Production Company LLC (AMPCO) where a holder stated one, and are missing where no holder did.