William Blair & Company
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William Blair & Company’s CarMax KMX Stock Holding History

William Blair & Company’s Portfolio KMX Stock Details KMX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2017
Q3 		– Sell
-700
Closed -$44K – 1439
2017
Q2 		$44K Buy
+700
New +$42.3K ﹤0.01% 1479
2017
Q1 		– Sell
-600
Closed -$38K – 1485
2016
Q4 		$38K Buy
+600
New +$33.7K ﹤0.01% 1268

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AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SIM
SRS Investment Management New York $10.8B AUM 34.05% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

William Blair & Company's KMX Position: Q2 2026 in Review

William Blair & Company increased its CarMax (KMX) stake by 6.1% in Q2 2026, buying an estimated $240K and bringing the position to 96,203 shares worth $5.09M. The position accounts for 0.01% of the portfolio, ranked #515.

William Blair & Company first reported a position in KMX in Q2 2013 and has held it in 53 quarters since. The position peaked at $286M in Q4 2021. 557 funds tracked by Wall St. Rank hold KMX as of Q2 2026.

  • William Blair & Company held 96,203 shares of CarMax worth $5.09M as of Q2 2026.
  • William Blair & Company bought 5,512 CarMax shares in Q2 2026, an estimated $240K.
  • CarMax made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #515 holding.
  • William Blair & Company first reported a position in CarMax in Q2 2013 and has held it in 53 quarters since.
  • William Blair & Company's CarMax position peaked at $286M in Q4 2021.
  • 557 funds tracked by Wall St. Rank held CarMax as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.