Mariner
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Mariner’s CarMax KMX Stock Holding History

Mariner’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
2026
Q2 		$13.7M Sell
259,057
-97,618
-27% -$4.25M 0.01% 601
2026
Q1 		$14.8M Buy
356,675
+203,708
+133% +$8.92M 0.02% 576
2025
Q4 		$5.92M Buy
152,967
+104,830
+218% +$4.19M 0.01% 938
2025
Q3 		$2.16M Buy
48,137
+1,410
+3% +$84.2K ﹤0.01% 1376
2025
Q2 		$3.14M Buy
46,727
+32,475
+228% +$2.18M ﹤0.01% 1078
2025
Q1 		$1.11M Buy
14,252
+2,522
+22% +$202K ﹤0.01% 1614
2024
Q4 		$959K Buy
11,730
+54
+0.5% +$4.24K ﹤0.01% 1684
2024
Q3 		$903K Sell
11,676
-6,294
-35% -$498K ﹤0.01% 1691
2024
Q2 		$1.32M Sell
17,970
-2,475
-12% -$178K ﹤0.01% 1333
2024
Q1 		$1.78M Buy
20,445
+2,417
+13% +$183K ﹤0.01% 1178
2023
Q4 		$1.38M Buy
18,028
+3,550
+25% +$239K ﹤0.01% 1236
2023
Q3 		$1.02M Buy
14,478
+1,062
+8% +$87K ﹤0.01% 1308
2023
Q2 		$1.12M Buy
13,416
+3,083
+30% +$226K ﹤0.01% 1233
2023
Q1 		$663K Sell
10,333
-794
-7% -$53.1K ﹤0.01% 1522
2022
Q4 		$678K Sell
11,127
-2,531
-19% -$162K ﹤0.01% 1462
2022
Q3 		$901K Buy
13,658
+3,432
+34% +$314K ﹤0.01% 1104
2022
Q2 		$925K Sell
10,226
-806
-7% -$75.8K ﹤0.01% 928
2022
Q1 		$1.06M Buy
+11,032
New +$1.19M ﹤0.01% 916

Other funds holding KMX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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

Mariner's KMX Position: Q2 2026 in Review

Mariner reduced its CarMax (KMX) stake by 27% in Q2 2026, selling an estimated $4.25M and leaving 259,057 shares worth $13.7M. The position accounts for 0.01% of the portfolio, ranked #601.

Mariner first reported a position in KMX in Q1 2022 and has held it in 18 quarters since. The position peaked at $14.8M in Q1 2026. 554 funds tracked by Wall St. Rank hold KMX as of Q2 2026.

  • Mariner held 259,057 shares of CarMax worth $13.7M as of Q2 2026.
  • Mariner sold 97,618 CarMax shares in Q2 2026, an estimated $4.25M.
  • CarMax made up 0.01% of Mariner's portfolio in Q2 2026, its #601 holding.
  • Mariner first reported a position in CarMax in Q1 2022 and has held it in 18 quarters since.
  • Mariner's CarMax position peaked at $14.8M in Q1 2026.
  • 554 funds tracked by Wall St. Rank held CarMax as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.