Held by 7 tracked superinvestors.
See COST insider (officer/director) trading →Thomas Gayner
Markel Group · as of 2026-06-30
$36,623,651
39,150 shares
Thomas Russo
Gardner Russo & Quinn · as of 2026-06-30
$3,179,709
3,399 shares
Christopher Bloomstran
Semper Augustus · as of 2026-06-30
$3,137,566
3,354 shares
Mairs & Power Funds
Mairs & Power Funds · as of 2026-06-30
$2,771,798
2,963 shares
Torray Funds
Torray Funds · as of 2026-06-30
$587,475
628 shares
David Katz
Matrix Asset Advisors · as of 2026-06-30
$515,137
551 shares
Bill Nygren
Oakmark Funds · as of 2026-06-30
$334,898
358 shares
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