Form 4 Tracker
Karen A. Foster

Chief Quality and Operations · 5 filings · Latest: Mar 23, 2026

BIOLIFE SOLUTIONS INC
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
BLFS
Karen A. FosterChief Quality and OperationsMar 23, 2026
Sale
$19.172,577$49.4K108,758
BLFS
KAREN FOSTERMar 23, 2026
Proposed Sale
$18.852,577$48.6K
BLFS
Karen A. FosterChief Quality and OperationsMar 9, 2026
Sale
$20.00500$10.0K113,242
BLFS
Karen A. FosterChief Quality and OperationsMar 5, 2026
Sale
$20.1596,923$2.0M113,742
BLFS
KAREN FOSTERMar 9, 2026
Proposed Sale
$19.86500$9.9K
BLFS
Karen A. FosterChief Quality and OperationsMar 3, 2026
Sale
$20.74418$8.7K210,665
BLFS
KAREN FOSTERMar 5, 2026
Proposed Sale
$20.6796,923$2.0M