Carmax KMX Institutional Ownership

NYSE KMX

$57.18 -1.19 (-2.04%)

At close: Sep 18, 2026 · 4:00 PM EDT

Institutions by Trading Activity

557 Institutions

Increased 232 41.7%

Unchanged 74 13.3%

Reduced 251 45.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

105.12%

▼-1.14 pp QoQ

Shares Held by Institutions

149.11Mn

of 141.85Mn outstanding

▲+2.57% QoQ

Shares Outstanding

141.85Mn

-7.26Mn held outside 13F filers

Institutional Investors

557

filed 13F for Jun 2026

▲+11 vs prior quarter

Net Shares Added (QoQ)

+3.74Mn

accumulated since last quarter

Value of Holdings

$8.53Bn

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

Quarter ending 30 Jun, 2026

Carmax Inc (NYSE:KMX) is held by 557 institutional investors per 13F filings through June 2026.

These investors held 105.1% of outstanding shares in June 2026, down from 106.3% in March 2026.
They increased total shares held in KMX by 2.57% quarter over quarter, and investors in Carmax decreased 24.01% from a year ago.
Of these 557 funds, 232 grew their exposure to Carmax, 251 cut back, and 74 maintained positions.
Institutional investors collectively held 149.11Mn shares in Carmax as of June 2026, up by 3.74Mn shares quarter on quarter, and down 10.75Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Carmax with 17.09Mn shares, accounting for 12.05% of total shares outstanding.
Leading buyers of Carmax shares for the quarter ending June 2026 were Jupiter Topco LLC (4.65Mn), HAWK RIDGE CAPITAL MANAGEMENT LP (2.83Mn), CANADA PENSION PLAN INVESTMENT BOARD (1.91Mn), AMERICAN CENTURY COMPANIES INC (1.86Mn), Slate Path Capital LP (1.83Mn).
Top sellers of KMX stock for the quarter ending June 2026 included AQR CAPITAL MANAGEMENT LLC (3.44Mn), Starboard Value LP (2.99Mn), Apollo Management Holdings, L.P. (2.16Mn), Vulcan Value Partners, LLC (1.29Mn), Diamond Hill Capital Management, LLC (Investment Advisor) (841.69K).
Per Business Quant data, the top 10 holders of Carmax for the quarter ending June 2026 are BlackRock, Inc. (17.09Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (7.29Mn), AQR CAPITAL MANAGEMENT LLC (6.62Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.42Mn), SRS Investment Management, LLC (5.92Mn), TWO SIGMA INVESTMENTS, LP (5.83Mn), State Street Corp (5.16Mn), DIMENSIONAL FUND ADVISORS LP (4.97Mn), Jupiter Topco LLC (4.65Mn), PRIMECAP MANAGEMENT CO/CA/ (4.36Mn).

Form 13F Holdings

555 Institutional Holders

Report period 30 Jun, 2026

Total shares held 149.11Mn

Of outstanding 105.12%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	17,092,089	12.05%	▼165,372	-0.96%	$904.00Mn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	7,286,475	5.14%	▲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	4.53%	▲33,427	+0.52%	$339.56Mn
5	SRS Investment Management, LLC	0001503174	5,922,862	4.18%	▲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	3.64%	▲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 555 holders