Starboard Value’s CarMax KMX Stock Holding History

Starboard Value’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	$170M	Sell	3,206,438 -2,994,924	-48%	-$130M	3.75%	11
2026 Q1	$258M	Buy	+6,201,362	New	+$271M	5.64%	9

Other funds holding KMX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

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 New York $138B AUM 41.87% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Starboard Value's KMX Position: Q2 2026 in Review

Starboard Value reduced its CarMax (KMX) stake by 48% in Q2 2026, selling an estimated $130M and leaving 3,206,438 shares worth $170M. The position accounts for 3.75% of the portfolio, ranked #11.

Starboard Value first reported a position in KMX in Q1 2026 and has held it in 2 quarters since. The position peaked at $258M in Q1 2026. 554 funds tracked by Wall St. Rank hold KMX as of Q2 2026.

Starboard Value held 3,206,438 shares of CarMax worth $170M as of Q2 2026.
Starboard Value sold 2,994,924 CarMax shares in Q2 2026, an estimated $130M.
CarMax made up 3.75% of Starboard Value's portfolio in Q2 2026, its #11 holding.
Starboard Value first reported a position in CarMax in Q1 2026 and has held it in 2 quarters since.
Starboard Value's CarMax position peaked at $258M in Q1 2026.
554 funds tracked by Wall St. Rank held CarMax as of Q2 2026.

Based on Starboard Value's 13F filing for Q2 2026, filed 14 Aug 2026.