Karen A. Foster

BLFS

Karen A. Foster serves as officer: Chief Quality and Operations at BioLife Solutions, Inc. (BLFS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

76 trades

$10.10M

Net Position

Net Seller

$10.10M

Companies Traded

BLFS

Active Period

Feb 2021 – Mar 2026

76 total trades

Most Recent

Sell BLFS

Mar 31, 2026 · $49.4K

Karen A. Foster's Insider Trading at BioLife Solutions, Inc. (BLFS)

Buys

0 · $0.00

Sells

26 · $7.42M

Total Shares Bought

Total Shares Sold

191,117

BLFS Price Chart

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Date	Type	Shares	Avg Price	Value
May 27, 2022	Sell	174	$14.53	$2.5K
May 13, 2022	Sell	58	$12.32	$714.56
Apr 18, 2022	Sell	16,413	$17.59	$288.7K
Mar 29, 2022	Sell	547	$22.24	$12.2K
Mar 1, 2022	Sell	221	$23.78	$5.3K
Feb 10, 2022	Sell	293	$29.38	$8.6K
Dec 29, 2021	Sell	625	$39.37	$24.6K
Nov 30, 2021	Sell	315	$37.59	$11.8K
Nov 22, 2021	Sell	16,332	$46.19	$754.4K
Oct 25, 2021	Sell	16,332	$44.45	$726.0K
Oct 14, 2021	Sell	1,082	$39.97	$43.2K
Sep 28, 2021	Sell	610	$43.12	$26.3K
Sep 27, 2021	Sell	16,332	$44.66	$729.4K
Aug 26, 2021	Sell	325	$57.26	$18.6K
Aug 23, 2021	Sell	16,332	$46.54	$760.1K
Jul 26, 2021	Sell	16,333	$45.24	$738.9K
Jun 29, 2021	Sell	607	$43.75	$26.6K
Jun 21, 2021	Sell	16,332	$42.79	$698.8K
May 28, 2021	Sell	264	$33.87	$8.9K
May 24, 2021	Sell	16,332	$31.44	$513.5K
Apr 19, 2021	Sell	16,332	$32.58	$532.1K
Apr 1, 2021	Sell	3,414	$36.53	$124.7K
Mar 26, 2021	Sell	2,562	$35.01	$89.7K
Mar 22, 2021	Sell	16,332	$37.56	$613.4K
Feb 26, 2021	Sell	284	$39.57	$11.2K
Feb 22, 2021	Sell	16,334	$39.66	$647.8K