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Insider
Amy DuRoss
DirectorAmy DuRoss (Director) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in BLFS. The largest single filing was $111K of BLFS (4,523 sh × $24.51, as filed), executed Nov 20 2025. Data as of Nov 7 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
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no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
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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
–
no filings in the window
Last traded
Nov 20 2025
Filed Nov 21 2025
Volume by month
Buys $0
Sells $251K
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 →
$111K4,523 sh × $24.51
Exec Nov 20 2025
Filed Nov 21 2025 · 5:30 PM ET BLFSSALE BIOLIFE SOLUTIONS INC View filing → $141K
5,632 sh × $24.96
Exec Mar 14 2025
Filed Mar 20 2025 · 5:30 PM ET †