Karen A. Foster Biolife Solutions Inc (BLFS) insider trading activity

Karen A. Foster is Chief Quality and Operations of BIOLIFE SOLUTIONS INC. Currently has a direct ownership of 192,838 shares of BLFS, which is worth approximately $4.64 Million. The most recent transaction as insider was on Nov 25, 2025, when has been sold 415 shares (Common Stock) at a price of $26.74 per share, resulting in proceeds of $11,097. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 193K

0.69% 3M change

22.85% 12M change

Total Value Held $4.64 Million

Karen A. Foster Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 25 2025	SELL Open market or private sale	$11,097 $26.74 p/Share	415 Reduced 0.21%	192,838 Common Stock
Oct 09 2025	SELL Open market or private sale	$11,463 $27.36 p/Share	419 Reduced 0.22%	193,253 Common Stock
Sep 11 2025	SELL Open market or private sale	$13,710 $26.83 p/Share	511 Reduced 0.26%	193,672 Common Stock
Aug 26 2025	SELL Open market or private sale	$10,506 $25.44 p/Share	413 Reduced 0.21%	194,183 Common Stock
Jul 07 2025	SELL Open market or private sale	$8,908 $22.27 p/Share	400 Reduced 0.21%	194,596 Common Stock
Jun 10 2025	SELL Open market or private sale	$7,584 $23.7 p/Share	320 Reduced 0.16%	194,996 Common Stock
May 28 2025	SELL Open market or private sale	$5,637 $22.46 p/Share	251 Reduced 0.13%	195,316 Common Stock

Apr 09 2025	SELL Open market or private sale	$5,751 $20.11 p/Share	286 Reduced 0.15%	195,567 Common Stock
Apr 01 2025	SELL Open market or private sale	$178,311 $22.66 p/Share	7,869 Reduced 3.86%	195,853 Common Stock
Mar 18 2025	BUY Grant, award, or other acquisition	-	48,810 Added 19.33%	203,722 Common Stock
Mar 11 2025	SELL Open market or private sale	$33,275 $25.0 p/Share	1,331 Reduced 0.85%	154,912 Common Stock
Mar 03 2025	SELL Open market or private sale	$8,249 $25.46 p/Share	324 Reduced 0.21%	156,243 Common Stock
Feb 12 2025	SELL Open market or private sale	$2,070 $26.54 p/Share	78 Reduced 0.05%	156,567 Common Stock
Jan 06 2025	SELL Open market or private sale	$8,862 $27.02 p/Share	328 Reduced 0.21%	156,645 Common Stock
Nov 26 2024	SELL Open market or private sale	$6,854 $27.2 p/Share	252 Reduced 0.16%	156,973 Common Stock
Nov 12 2024	SELL Open market or private sale	$1,738 $26.34 p/Share	66 Reduced 0.04%	157,225 Common Stock
Oct 30 2024	SELL Open market or private sale	$6,412 $23.15 p/Share	277 Reduced 0.18%	157,291 Common Stock
Sep 16 2024	SELL Open market or private sale	$6,707 $25.12 p/Share	267 Reduced 0.17%	157,568 Common Stock
Aug 21 2024	SELL Open market or private sale	$2,458 $25.61 p/Share	96 Reduced 0.06%	157,835 Common Stock
Jul 18 2024	SELL Open market or private sale	$5,400 $22.5 p/Share	240 Reduced 0.15%	157,931 Common Stock
May 29 2024	SELL Open market or private sale	$8,886 $21.78 p/Share	408 Reduced 0.26%	158,171 Common Stock
May 17 2024	SELL Open market or private sale	$1,885 $22.18 p/Share	85 Reduced 0.05%	158,579 Common Stock
Apr 18 2024	SELL Open market or private sale	$7,364 $15.31 p/Share	481 Reduced 0.3%	158,664 Common Stock
Mar 27 2024	SELL Open market or private sale	$7,106 $17.99 p/Share	395 Reduced 0.25%	159,145 Common Stock
Mar 12 2024	SELL Open market or private sale	$85,938 $16.6 p/Share	5,177 Reduced 3.14%	159,540 Common Stock

KAF

Karen A. Foster

Chief Quality and Operations

Bothell, WA

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