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CSX in the 13F filings

CSX Corp · CUSIP 126408103

Sector · Industrials
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Q3 2026: 5 of 95 managers have filed so far; the filing deadline is 16 November 2026. Its figures cover those filers only, so it is not yet a picture of the tracked managers.

Quarter end
30 Sep 2026
the date the book describes
Filed
9 Nov 2026
latest of these filings; the earliest 30 Oct 2026
Managers listing it
3
at least, of 95 tracked, among listed positions
Comparable managers
5
filed both Q2 2026 and Q3 2026; 3 listed it in both
Shares listed
3,764,445
combined, among listed positions
Reported value
$175m
combined, at the quarter end

Among the 5 comparable managers: 2 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares was -1,054,808.

Managers listing CSX in Q3 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

3 of 3 holders

ActionFiling
Squarepoint Ops LLC2,229,677$104m0.11%Trimmed-1,176,0559 Nov 2026 (the filing on sec.gov)
Acadian Asset Management LLC937,268$44m0.05%Added+108,2479 Nov 2026 (the filing on sec.gov)
Markel Group Inc597,500$28m0.22%Added+13,00030 Oct 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2026 to Q3 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
23 in Q4 2024 to 3 in Q3 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CSX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201317$3.9bnn.a.n.a.
Q3 201313$4.1bnn.a.n.a.
Q4 201314$4.3bnn.a.n.a.
Q1 201410$4.2bnn.a.n.a.
Q2 201414$5.2bnn.a.n.a.
Q3 201413$5.5bnn.a.n.a.
Q4 201417$6.4bnn.a.n.a.
Q1 201522$5.6bnn.a.n.a.
Q2 201524$6.0bnn.a.n.a.
Q3 201528$4.9bnn.a.n.a.
Q4 201523$4.7bnn.a.n.a.
Q1 201626$4.5bnn.a.n.a.
Q2 201622$4.2bnn.a.n.a.
Q3 201620$4.8bnn.a.n.a.
Q4 201621$5.7bnn.a.n.a.
Q1 201722$7.6bnn.a.n.a.
Q2 201723$10.6bnn.a.n.a.
Q3 201720$10.5bnn.a.n.a.
Q4 201728$11.9bnn.a.n.a.
Q1 201824$11.3bnn.a.n.a.
Q2 201830$12.4bnn.a.n.a.
Q3 201830$13.8bnn.a.n.a.
Q4 201829$11.1bnn.a.n.a.
Q1 201922$14.1bnn.a.n.a.
Q2 201925$14.3bnn.a.n.a.
Q3 201918$11.2bnn.a.n.a.
Q4 201925$12.5bnn.a.n.a.
Q1 202028$9.9bnn.a.n.a.
Q2 202024$11.5bnn.a.n.a.
Q3 202028$13.7bnn.a.n.a.
Q4 202027$15.8bnn.a.n.a.
Q1 202129$17.0bnn.a.n.a.
Q2 202125$16.7bnn.a.n.a.
Q3 202124$15.0bnn.a.n.a.
Q4 202129$19.6bnn.a.n.a.
Q1 202228$18.0bnn.a.n.a.
Q2 202234$13.0bnn.a.n.a.
Q3 202233$10.7bnn.a.n.a.
Q4 202231$11.8bnn.a.n.a.
Q1 202329$11.3bnn.a.n.a.
Q2 202326$11.7bnn.a.n.a.
Q3 202329$9.4bnn.a.n.a.
Q4 202322$9.4bn815
Q1 202431$9.4bn2110
Q2 202429$7.2bn2110
Q3 202424$6.7bn1312
Q4 202423$5.7bn1013
Q1 202528$4.6bn2010
Q2 202528$5.8bn2110
Q3 202532$6.9bn1714
Q4 202530$8.5bn2023
Q1 202620$9.5bn1925
Q2 202629$11.0bn2913
Q3 20263$175m21

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

CSX and KLAC →CSX and GE →CSX and LRCX →Choose a stock to compare with CSX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own CSX, latest filings →Back to the 13F Explorer →