Form 4 Tracker
SANDBROOK WILLIAM J

Director · 3 filings · Latest: May 20, 2026

COMFORT SYSTEMS USA INC
Knife River Corp
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Form 4
KNF
SANDBROOK WILLIAM JDirectorMay 20, 2026
Grant/Award
$0.002,0407,735
FIX
SANDBROOK WILLIAM JDirectorMay 18, 2026
Grant/Award
$0.001057,771
FIX
SANDBROOK WILLIAM JDirectorApr 29, 2026
Sale
$1,732.671,500$2.6M7,666