Starboard Value

Superinvestor

Starboard Value LP

SEC CIK: 0001517137
Manager: Jeff Smith
Style: Activist
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

KMX holding history

CarMax Inc in every 13F filed by Starboard Value, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

KMX overview All 13F holders of KMX Full Q2 2026 holdings

Shares (Q2 2026): 3,206,438
Value: $169.6M
% of portfolio: 3.8%
Quarters held: 2; Since Q1 2026

Holdings of KMX by Starboard Value, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	3,206,438	$169.6M	3.8%	−2,994,924−48.3%	Reduced	Holders
Q1 2026	6,201,362	$257.9M	5.6%	+6,201,362	New	Holders