Private company
Who owns TTX Company
3 companies in the researched set disclose a stake in TTX Company, worth $3.06bn between them. TTX Company 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.
- Union Pacific Corporation, as of 30 Jun 2026. Union Pacific Railroad (UPRR) applies the equity method of accounting (ASC 323) to its 37.03 percent economic interest in TTX, a rail car pooling company jointly owned with other North American railroads. The 10-Q states the carrying value only as a rounded figure, 'UPRR had $2.0 billion recognized as investments related to TTX,' identical at both June 30, 2026 and December 31, 2025. No more precise dollar figure or share count is disclosed; TTX is a private company with no public share count. The balance sheet 'Investments' line totals $2,977 million at June 30, 2026 (versus TTX's disclosed $2.0 billion), meaning roughly $1.0 billion of other, unnamed investments make up the remainder of that combined balance; those other investments are not sized or named anywhere in the filing and are not recorded here. sourcesource 2
- CSX Corporation, as of 31 Dec 2025. FY2025 10-K, Note 15: 'CSX owns about 20 percent of TTX's common stock, and the remaining is owned by the other leading North American railroads and their affiliates.' CSX applies the equity method to this investment. Carrying value disclosed as $1,055 million at December 31, 2025 ($1,012 million at December 31, 2024). This percentage was established independently from CSX's own filings and is materially different from Union Pacific's separately disclosed 37.03 percent economic interest in TTX (per the union-pacific.json research file); each Class I railroad holds a different share of TTX and the two figures should not be conflated or copied between companies. TTX is privately held with no public share count, so shares is null. source
- Norfolk Southern Corporation, as of 30 Jun 2026. TTX's 19.78% ownership percentage is disclosed (Q2 2026 10-Q, Note 9), but no standalone dollar value is given. TTX sits inside the balance sheet's combined 'Investments' line ($4,155 million at June 30, 2026 versus $4,089 million at December 31, 2025), which also includes the $1.9 billion Conrail investment and other items such as corporate-owned life insurance cash surrender value, none of which are broken out individually. Per the brief's rule against assigning a combined balance to one investee, value_usd is left null here; see notes and unknowns. 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 TTX Company where a holder stated one, and are missing where no holder did.
