CARMAX INC (KMX) Institutional Shareholders
CARMAX INC (KMX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $7.74B in KMX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of KMX tracked by InsiderSet, reporting ownership valued at approximately $904.00M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $997.84M, representing an estimated gain of +10.38% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed KMX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Aqr Capital Management Llc, and several other long-term asset managers with concentrated positions in CARMAX INC (KMX).
This page ranks the largest institutional KMX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
541
Total Reported Value
$7.74B
Largest Holder
Blackrock, Inc.
Largest Position
$904.00M
Insider Transactions (90d)
17
Latest Filing Quarter
Q2 2026
New Institutional Positions
54
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 17,092,089 | $904,000,591 | $997,836,156 | +$93,835,565 | +10.38% | |
| Vanguard Portfolio Management Llc | 0.02% | 7,286,475 | $385,381,663 | $425,384,411 | +$40,002,748 | +10.38% | |
| Aqr Capital Management Llc | 0.12% | 6,622,794 | $348,955,015 | $386,638,714 | +$37,683,699 | +10.80% | |
| Vanguard Capital Management Llc | 0.01% | 6,420,191 | $339,563,902 | $374,810,751 | +$35,246,849 | +10.38% | |
| Srs Investment Management, Llc | 2.93% | 5,922,862 | $313,260,171 | $345,776,684 | +$32,516,513 | +10.38% | |
| Two Sigma Investments, Lp | 0.23% | 5,831,970 | $308,452,893 | $340,470,409 | +$32,017,516 | +10.38% | |
| State Street Corp | 0.01% | 5,156,276 | $272,715,438 | $301,023,393 | +$28,307,955 | +10.38% | |
| Dimensional Fund Advisors Lp | 0.05% | 4,974,772 | $263,119,540 | $290,427,189 | +$27,307,649 | +10.38% | |
| Primecap Management Co/Ca/ | 0.14% | 4,359,016 | $230,548,357 | $254,479,354 | +$23,930,997 | +10.38% | |
| Janus Henderson Group Plc | 0.09% | 4,580,807 | $190,470,595 | $267,427,513 | +$76,956,918 | +40.40% | |
| D. E. Shaw & Co., Inc. | 0.11% | 3,280,103 | $173,484,648 | $191,492,413 | +$18,007,765 | +10.38% | |
| American Century Companies Inc | 0.08% | 3,250,267 | $171,906,622 | $189,750,587 | +$17,843,965 | +10.38% | |
| Baird Financial Group, Inc. | 0.23% | 3,207,134 | $169,625,340 | $187,232,483 | +$17,607,143 | +10.38% | |
| Starboard Value Lp | 3.75% | 3,206,438 | $169,588,506 | $187,191,850 | +$17,603,344 | +10.38% | |
| First Pacific Advisors, Lp | 1.97% | 3,008,564 | $159,122,950 | $175,639,966 | +$16,517,016 | +10.38% | |
| Hawk Ridge Capital Management Lp | 4.81% | 2,834,458 | $149,914,484 | $165,475,658 | +$15,561,174 | +10.38% | |
| Geode Capital Management, Llc | 0.01% | 2,564,007 | $135,644,698 | $149,686,729 | +$14,042,031 | +10.35% | |
| Manufacturers Life Insurance Company, The | 0.10% | 2,420,139 | $128,001,152 | $141,287,715 | +$13,286,563 | +10.38% | |
| Canada Pension Plan Investment Board | 0.06% | 2,183,121 | $115,465,270 | $127,450,604 | +$11,985,334 | +10.38% | |
| Morgan Stanley | 0.01% | 2,176,424 | $115,111,219 | $127,059,633 | +$11,948,414 | +10.38% | |
| Apollo Management Holdings, L.P. | 1.48% | 1,986,285 | $105,054,614 | $115,959,318 | +$10,904,704 | +10.38% | |
| Millennium Management Llc | 0.07% | 1,898,337 | $100,403,044 | $110,824,914 | +$10,421,870 | +10.38% | |
| Slate Path Capital Lp | 1.34% | 1,827,700 | $96,667,053 | $106,701,126 | +$10,034,073 | +10.38% | |
| Goldman Sachs Group Inc | 0.01% | 1,634,480 | $86,447,656 | $95,420,942 | +$8,973,286 | +10.38% | |
| Diamond Hill Capital Management Inc | 0.69% | 1,628,905 | $86,152,785 | $95,095,474 | +$8,942,689 | +10.38% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,510,820 | $79,907,270 | $88,201,672 | +$8,294,402 | +10.38% | |
| Invesco Ltd. | 0.00% | 1,133,035 | $59,926,223 | $66,146,583 | +$6,220,360 | +10.38% | |
| Northern Trust Corp | 0.01% | 1,129,189 | $59,722,806 | $65,922,054 | +$6,199,248 | +10.38% | |
| Bank Of America Corp | 0.00% | 1,045,011 | $55,270,605 | $61,007,742 | +$5,737,137 | +10.38% | |
| Focus Partners Wealth | 0.06% | 1,016,596 | $53,768,186 | $59,348,874 | +$5,580,688 | +10.38% | |
| Woodline Partners Lp | 0.16% | 1,005,951 | $53,204,748 | $58,727,419 | +$5,522,671 | +10.38% | |
| Jane Street Group, Llc | 0.03% | 969,082 | $51,254,747 | $56,575,007 | +$5,320,260 | +10.38% | |
| Alyeska Investment Group, L.P. | 0.13% | 957,980 | $50,667,562 | $55,926,872 | +$5,259,310 | +10.38% | |
| Rings Capital Management Llc | 25.54% | 949,000 | $50,192,610 | $55,402,620 | +$5,210,010 | +10.38% | |
| Envestnet Asset Management Inc | 0.01% | 932,805 | $49,336,062 | $54,457,156 | +$5,121,094 | +10.38% | |
| Silver Heights Capital Management Inc | 14.90% | 912,993 | $48,288,200 | $53,300,531 | +$5,012,331 | +10.38% | |
| Vulcan Value Partners | C.T. Fitzpatrick | 1.47% | 912,638 | $48,269,424 | $53,279,806 | +$5,010,382 | +10.38% |
| Vanguard Fiduciary Trust Co | 0.01% | 899,029 | $47,549,644 | $52,485,313 | +$4,935,669 | +10.38% | |
| Ubs Group Ag | 0.01% | 866,663 | $45,837,806 | $50,595,786 | +$4,757,980 | +10.38% | |
| Renaissance Technologies LLC | Jim Simons | 0.06% | 864,362 | $45,716,106 | $50,461,454 | +$4,745,348 | +10.38% |
| Bank Of New York Mellon Corp | 0.01% | 807,108 | $42,687,920 | $47,118,965 | +$4,431,045 | +10.38% | |
| Principal Financial Group Inc | 0.02% | 684,372 | $36,196,435 | $39,953,637 | +$3,757,202 | +10.38% | |
| Norges Bank | 0.00% | 665,737 | $35,210,830 | $38,865,726 | +$3,654,896 | +10.38% | |
| Holocene Advisors, Lp | 0.08% | 664,084 | $35,123,403 | $38,769,224 | +$3,645,821 | +10.38% | |
| Framtiden Holdings Management Co Llc | 20.83% | 610,000 | $34,378,500 | $35,611,800 | +$1,233,300 | +3.59% | |
| Mount Capital Ltd | 11.67% | 584,800 | $30,930,072 | $34,140,624 | +$3,210,552 | +10.38% | |
| Nuveen, Llc | 0.01% | 550,461 | $29,113,882 | $32,135,913 | +$3,022,031 | +10.38% | |
| Public Sector Pension Investment Board | 0.07% | 487,570 | $25,787,577 | $28,464,337 | +$2,676,760 | +10.38% | |
| Nexus Investment Management Ulc | 3.17% | 459,315 | $24,293,170 | $26,814,810 | +$2,521,640 | +10.38% | |
| Balyasny Asset Management L.P. | 0.04% | 423,953 | $22,422,874 | $24,750,376 | +$2,327,502 | +10.38% |
Frequently asked questions about KMX
Who owns the most KMX stock?
The largest holders of KMX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CARMAX INC (KMX).
Is KMX widely held by superinvestors?
Many widely followed stocks like KMX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly KMX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.