Carmax KMX Institutional Ownership

NYSE KMX

$51.66 -1.67 (-3.13%)

As of: Oct 19, 2026 · 3:59 PM EDT

Institutions by Trading Activity

556 Institutions

Increased 231 41.5%

Unchanged 74 13.3%

Reduced 251 45.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

147.53Mn

of 141.91Mn outstanding

▼-2.86% QoQ

Shares Outstanding

141.91Mn

Institutional Investors

556

filed 13F for Jun 2026

▲+10 vs prior quarter

Net Shares Added (QoQ)

-4.35Mn

distributed since last quarter

Value of Holdings

$7.76Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Carmax Inc (NYSE:KMX) counted 556 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Total shares held in KMX fell 2.86% from Q1 2026; the number of holders fell 24.04% from Q2 2025.
Of the 556 holders of KMX in Q2 2026, 231 added to their positions, 251 reduced their stakes and 74 left their positions unchanged.
In total, institutional investors held 147.53Mn shares of Carmax at the end of Q2 2026, down 4.35Mn from the prior quarter and down 8.41Mn from a year earlier.
BlackRock, Inc. held the largest position in KMX at 17.09Mn shares as of June 30, 2026.
Among existing holders, the largest additions to Carmax in Q2 2026 came from Canada Pension Plan Investment Board (+1.91Mn shares), American Century Companies Inc (+1.86Mn shares), Dimensional Fund Advisors LP (+699.11K shares), Millennium Management LLC (+583.5K shares) and Jane Street Group, LLC (+511.35K shares).
The biggest cuts to KMX positions during Q2 2026 came from AQR Capital Management LLC (-3.44Mn shares), Starboard Value LP (-2.99Mn shares), Apollo Management Holdings, L.P. (-2.16Mn shares), Vulcan Value Partners, LLC (-1.29Mn shares) and Diamond Hill Capital Management, LLC (-841.69K shares).
Per Business Quant, the top 10 investors in KMX for the quarter ended June 30, 2026 were BlackRock, Inc. (17.09Mn shares), Vanguard Portfolio Management LLC (7.29Mn shares), AQR Capital Management LLC (6.62Mn shares), Vanguard Capital Management LLC (6.42Mn shares), SRS Investment Management, LLC (5.92Mn shares), Two Sigma Investments, LP (5.83Mn shares), State Street Corp (5.16Mn shares), Dimensional Fund Advisors LP (4.97Mn shares), Jupiter Topco LLC (4.65Mn shares) and Primecap Management Co (4.36Mn shares).

Form 13F Holdings

556 Institutional Holders

Report period 30 Jun, 2026

Total shares held 147.53Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	17,092,089	12.04%	▼165,372	-0.96%	$904.00Mn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	7,286,475	5.13%	▲10,203	+0.14%	$385.38Mn
3	AQR CAPITAL MANAGEMENT LLC	0001167557	6,622,794	4.67%	▼3,437,708	-34.17%	$348.96Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	6,420,191	4.52%	▲33,427	+0.52%	$339.56Mn
5	SRS Investment Management, LLC	0001503174	5,922,862	4.17%	▲271,188	+4.80%	$313.26Mn
6	TWO SIGMA INVESTMENTS, LP	0001179392	5,831,970	4.11%	▲484,873	+9.07%	$308.45Mn
7	State Street Corp	0000093751	5,156,276	3.63%	▲271,216	+5.55%	$272.72Mn
8	DIMENSIONAL FUND ADVISORS LP	0000354204	4,974,772	3.51%	▲699,109	+16.35%	$263.12Mn
9	Jupiter Topco LLC	0002146052	4,645,036	3.27%	▲4,645,036	0.00%	$245.68Mn
10	PRIMECAP MANAGEMENT CO/CA/	0000763212	4,359,016	3.07%	▲870	+0.02%	$230.55Mn
11	D. E. Shaw & Co., Inc.	0001009207	3,280,103	2.31%	▲359,686	+12.32%	$173.48Mn
12	AMERICAN CENTURY COMPANIES INC	0000748054	3,250,267	2.29%	▲1,859,355	+133.68%	$171.91Mn
13	Baird Financial Group, Inc.	0001648711	3,207,134	2.26%	▲138,682	+4.52%	$169.63Mn
14	Starboard Value LP	0001517137	3,206,438	2.26%	▼2,994,924	-48.29%	$169.59Mn
15	First Pacific Advisors, LP	0001377581	3,008,564	2.12%	▲26,855	+0.90%	$159.12Mn
16	HAWK RIDGE CAPITAL MANAGEMENT LP	0001609074	2,834,458	2.00%	▲2,834,458	0.00%	$149.91Mn
17	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,564,007	1.81%	▲9,240	+0.36%	$135.64Mn
18	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0000928047	2,420,139	1.71%	▲21,882	+0.91%	$128.00Mn
19	CANADA PENSION PLAN INVESTMENT BOARD	0001283718	2,183,121	1.54%	▲1,908,090	+693.77%	$115.47Mn
20	Morgan Stanley	0000895421	2,176,424	1.53%	▼358,315	-14.14%	$115.11Mn

Showing 1 to 20 of 556 holders