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KF
Insider

Karen A. Foster

Chief Quality and Operations

Karen A. Foster (Chief Quality and Operations) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in BLFS. The largest single filing was $2.0M of BLFS (96,923 sh × $20.15, as filed), executed Mar 5. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.0M
shares × price, as filed
Last traded
Mar 5
Filed Mar 9
Open performance→
Volume by month
$2.0M$976K$0Dec 2024Jun 2025Dec 2025Jun 2026Apr 2025 · sells $178KMar 2026 · sells $2.0M
Buys $0 Sells $2.1M

Shares × price, as filed · by filing month · past 24 months

Most traded names
BLFS BLFS 0 buys · 2 sells 2 filings
Recent filings
BLFSSALE BIOLIFE SOLUTIONS INC View filing → $2.0M
96,923 sh × $20.15
Exec Mar 5
Filed Mar 9 · 5:30 PM ET BLFSSALE BIOLIFE SOLUTIONS INC View filing → $178K
7,869 sh × $22.66
Exec Apr 1 2025
Filed Apr 3 2025 · 5:30 PM ET