Form 4 Tracker
SANDBROOK WILLIAM J

Director · 4 filings · Latest: May 20, 2026

COMFORT SYSTEMS USA INC
Knife River Corp
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
FIX
SANDBROOK WILLIAM JDirectorApr 29, 2026
Sale
$1,732.671,500$2.6M7,666
FIX
SANDBROOK WILLIAM JApr 29, 2026
Proposed Sale
$1,732.671,500$2.6M
FIX
SANDBROOK WILLIAM JDirectorFeb 24, 2026
Sale
$1,443.322,500$3.6M9,166
FIX
SANDBROOK WILLIAM JFeb 24, 2026
Proposed Sale
$1,443.322,500$3.6M
FIX
SANDBROOK WILLIAM JSep 10, 2025
Proposed Sale
$733.56800$586.8K
FIX
SANDBROOK WILLIAM JSep 9, 2025
Proposed Sale
$708.55700$496.0K
FIX
SANDBROOK WILLIAM JAug 25, 2025
Proposed Sale
$689.57700$482.7K