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KMX in the 13F filings

Carmax Inc · CUSIP 143130102

Sector · Consumer discretionary
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Sep 2024
the date the book describes
Filed
14 Nov 2024
latest of these filings; the earliest 1 Nov 2024
Managers listing it
17
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q2 2024 and Q3 2024; 14 listed it in both
Shares listed
13,305,985
combined, among listed positions
Reported value
$1.0bn
combined, at the quarter end

Among the 94 comparable managers: 9 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing KMX in Q3 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

17 of 17 holders

ActionFiling
Janus Henderson Group Ltd4,642,235$359m0.18%Added+28,46614 Nov 2024 (the filing on sec.gov)
Ruane Cunniff & Goldfarb LP1,825,488$141m2.21%Trimmed-1,971,95314 Nov 2024 (the filing on sec.gov)
Akre Capital Management LLC1,297,151$100m0.84%Trimmed-848,35813 Nov 2024 (the filing on sec.gov)
Holocene Advisors LP946,931$73m0.30%Added+834,23214 Nov 2024 (the filing on sec.gov)
Man Group PLC800,133$62m0.16%Added+209,56814 Nov 2024 (the filing on sec.gov)
AQR Capital Management LLC765,622$59m0.08%Added+276,78614 Nov 2024 (the filing on sec.gov)
Two Sigma Advisers LP664,900$51m0.12%Trimmed-125,60014 Nov 2024 (the filing on sec.gov)
Marshall Wace LLP633,368$49m0.06%Trimmed-527,23314 Nov 2024 (the filing on sec.gov)
Two Sigma Investments LP562,964$44m0.10%Trimmed-214,78014 Nov 2024 (the filing on sec.gov)
Squarepoint Ops LLC539,035$42m0.07%Trimmed-108,89614 Nov 2024 (the filing on sec.gov)
Baillie Gifford & Co169,270$13munder 0.1%Trimmed-4,1205 Nov 2024 (the filing on sec.gov)
Markel Group Inc136,500$11m0.10%Held01 Nov 2024 (the filing on sec.gov)
Tudor Investment Corp135,899$11munder 0.1%Newnew14 Nov 2024 (the filing on sec.gov)
ExodusPoint Capital Management LP109,436$8.5m0.05%Added+23,49112 Nov 2024 (the filing on sec.gov)
Quantbot Technologies LP42,455$3.3m0.13%Addedn.a.13 Nov 2024 (the filing on sec.gov)
PDT Partners LLC20,901$1.6m0.14%Newnew14 Nov 2024 (the filing on sec.gov)
Winton Group Ltd13,697$1.1m0.07%Added+5,66512 Nov 2024 (the filing on sec.gov)

What managers have written about KMX

Shown because the letter names the company. A letter is commentary; it is not a record of why a position changed.

  • Starboard Value's letter to CarMax's incoming CEO10 Mar 2026 · Activist letter · Subject of the letter · Starboard Value LP’s 13F
    Before the letter
    31 Dec 2025 (Q4 2025 13F): not among Starboard Value LP’s listed positions. A holding below the listed range, under another security, or none at all would read the same.
    After the letter
    31 Mar 2026 (Q1 2026 13F): 6,201,362 shares, reported at $258m.

Every letter beside its positions →

Largest increases and reductions, by shares

Q2 2024 to Q3 2024, 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 (2)

Exited (1)

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.
17 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
KMX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201314$2.6bnn.a.n.a.
Q3 201313$2.7bnn.a.n.a.
Q4 201310$2.5bnn.a.n.a.
Q1 201412$3.0bnn.a.n.a.
Q2 201411$3.3bnn.a.n.a.
Q3 201411$3.1bnn.a.n.a.
Q4 20148$4.2bnn.a.n.a.
Q1 201510$4.2bnn.a.n.a.
Q2 201514$3.5bnn.a.n.a.
Q3 201513$3.2bnn.a.n.a.
Q4 20159$3.1bnn.a.n.a.
Q1 20169$2.9bnn.a.n.a.
Q2 201612$2.9bnn.a.n.a.
Q3 201615$2.7bnn.a.n.a.
Q4 201612$3.5bnn.a.n.a.
Q1 201716$3.2bnn.a.n.a.
Q2 201716$3.5bnn.a.n.a.
Q3 201720$4.0bnn.a.n.a.
Q4 201721$2.9bnn.a.n.a.
Q1 201816$2.7bnn.a.n.a.
Q2 201820$3.2bnn.a.n.a.
Q3 201818$3.2bnn.a.n.a.
Q4 201821$2.5bnn.a.n.a.
Q1 201915$2.6bnn.a.n.a.
Q2 201922$3.2bnn.a.n.a.
Q3 201924$3.3bnn.a.n.a.
Q4 201922$3.1bnn.a.n.a.
Q1 202017$2.0bnn.a.n.a.
Q2 202014$3.5bnn.a.n.a.
Q3 202016$3.0bnn.a.n.a.
Q4 202017$3.3bnn.a.n.a.
Q1 202119$4.0bnn.a.n.a.
Q2 202116$3.9bnn.a.n.a.
Q3 202114$3.8bnn.a.n.a.
Q4 202115$4.3bnn.a.n.a.
Q1 202213$3.2bnn.a.n.a.
Q2 202211$2.8bnn.a.n.a.
Q3 20229$2.0bnn.a.n.a.
Q4 202213$2.1bnn.a.n.a.
Q1 202312$1.9bnn.a.n.a.
Q2 202313$2.3bnn.a.n.a.
Q3 202312$1.8bnn.a.n.a.
Q4 202317$2.0bn106
Q1 202418$2.2bn126
Q2 202418$1.6bn139
Q3 202417$1.0bn98
Q4 202419$1.3bn125
Q1 202523$1.5bn175
Q2 202519$1.3bn137
Q3 202511$650m65
Q4 202512$1.0bn1519
Q1 202612$1.4bn1815
Q2 202612$1.4bn2012

Compare with…

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

KMX and AMZN →KMX and TSLA →KMX and HD →Choose a stock to compare with KMX →

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 KMX, latest filings →Back to the 13F Explorer →