Karen A. Foster

CIK 1683151 · Chief Quality and Operations · last filed 2026-03-23

Karen A. Foster is a Chief Quality and Operations who has filed 111 SEC Form 4 insider transactions across 1 company since 2016. The most recent filing, for BLFS, was dated Mar 23, 2026. Across all open-market trades the lifetime net is −$10.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$4.06M

Companies

1

Total Filings

111

Lifetime Open-Market Net

-$10.54M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
BLFS	Chief Quality and Operations	111,335	$36.47	$4.06M	-$10.54M	108	2026-03-23

Recent Filings

111 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-03-23	BLFS	Notice (144)	−2,577	-$48.6K	EDGAR
2026-03-23	BLFS	Tax (F)	−1,907	-$36.5K	EDGAR
2026-03-09	BLFS	Notice (144)	−500	-$9.9K	EDGAR
2026-03-09	BLFS	Sell (S)	−97,423	-$1.96M	EDGAR
2026-03-05	BLFS	Notice (144)	−96,923	-$2.00M	EDGAR
2026-03-05	BLFS	Sell (S)	−418	-$8.7K	EDGAR
2026-02-26	BLFS	Mixed	+19,099	-$294.7K	EDGAR
2026-01-08	BLFS	Sell (S)	−335	-$8.6K	EDGAR
2025-12-17	BLFS	Sell (S)	−519	-$13.0K	EDGAR
2025-11-28	BLFS	Sell (S)	−415	-$11.1K	EDGAR

Showing 1–10 of 111

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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.