Insider

Karen A. Foster Insider Trading Activity

Every SEC Form 4 transaction reported by Karen A. Foster, sourced directly from SEC EDGAR and updated as new filings are accepted.

By · Insider-trading data from SEC EDGAR
Latest filing:

Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.

Quick Answer

Is Karen A. Foster buying or selling?

Karen A. Foster reported 0 open-market buys ($0) and 81 sells ($10.6M) across 81 Form 4 filings at 1 company — a net selling position of $10.6M.

Source: SEC EDGAR Form 4

What stands out

  • All 81 of Karen A. Foster's Form 4 filings are for one company, BIOLIFE SOLUTIONS INC (BLFS).
  • The most recent Form 4 was accepted on Mar 31, 2026 (6 months ago).
  • In the last 12 months: no open-market purchases and 6 sales ($2.1M).
  • The largest open-market sale in the last 12 months was $2.0M of BIOLIFE SOLUTIONS INC (BLFS) on Mar 9, 2026. SEC ↗

Key Statistics (as of Mar 31, 2026)

Total Form 4 filings
81
SEC EDGAR
Companies
1
Buys (0)
$0
Sells (81)
$10.6M

Insider sentiment

Net selling

Net insider flow of $10.6M in net selling, filed between Feb 29, 2020 – Mar 31, 2026.

Companies Karen A. Foster files for

#CompanyForm 4 filings
1BLFSBIOLIFE SOLUTIONS INC81

Recent Karen A. Foster transactions

DateTickerRoleTypeSharesValueFiling
Mar 31, 2026BLFSChief Quality and OperationsSale2.6K$49.4KSEC ↗
Mar 9, 2026BLFSChief Quality and OperationsSale97.4K$2.0MSEC ↗
Mar 5, 2026BLFSChief Quality and OperationsSale418$8.7KSEC ↗
Jan 8, 2026BLFSChief Quality and OperationsSale335$8.6KSEC ↗
Dec 17, 2025BLFSChief Quality and OperationsSale519$13.0KSEC ↗
Nov 28, 2025BLFSChief Quality and OperationsSale415$11.1KSEC ↗
Oct 14, 2025BLFSChief Quality and OperationsSale419$11.5KSEC ↗
Sep 15, 2025BLFSChief Quality and OperationsSale511$13.7KSEC ↗
Aug 28, 2025BLFSChief Quality and OperationsSale413$10.5KSEC ↗
Jul 9, 2025BLFSChief Quality and OperationsSale400$8.9KSEC ↗
Jun 12, 2025BLFSChief Quality and OperationsSale320$7.6KSEC ↗
May 30, 2025BLFSChief Quality and OperationsSale251$5.6KSEC ↗
Apr 11, 2025BLFSChief Quality and OperationsSale286$5.8KSEC ↗
Apr 3, 2025BLFSChief Quality and OperationsSale7.9K$178.3KSEC ↗
Mar 13, 2025BLFSChief Quality and OperationsSale1.3K$33.3KSEC ↗
Mar 5, 2025BLFSChief Quality and OperationsSale324$8.2KSEC ↗
Feb 14, 2025BLFSChief Quality and OperationsSale78$2.1KSEC ↗
Jan 9, 2025BLFSChief Quality and OperationsSale328$8.9KSEC ↗
Nov 29, 2024BLFSChief Quality and OperationsSale252$6.9KSEC ↗
Nov 14, 2024BLFSChief Quality and OperationsSale66$1.7KSEC ↗
Nov 1, 2024BLFSChief Quality and OperationsSale277$6.4KSEC ↗
Sep 18, 2024BLFSChief Quality and OperationsSale603$14.6KSEC ↗
May 31, 2024BLFSChief Quality and OperationsSale408$8.9KSEC ↗
May 21, 2024BLFSChief Quality and OperationsSale85$1.9KSEC ↗
Apr 23, 2024BLFSChief Quality and OperationsSale481$7.4KSEC ↗

Showing the 25 most recent filings of 81. Screen every filing.

Karen A. Foster insider trading FAQ

Is Karen A. Foster buying or selling?

Across 81 SEC Form 4 filings, Karen A. Foster reported 0 open-market purchases totaling $0 and 81 sales totaling $10.6M — a net selling position of $10.6M.

Which companies does Karen A. Foster file Form 4s for?

Karen A. Foster has reported insider transactions at 1 company, most often BIOLIFE SOLUTIONS INC (BLFS).

How far back does Karen A. Foster's filing history go?

Trabud holds Karen A. Foster's SEC Form 4 filings from Feb 29, 2020 – Mar 31, 2026, sourced directly from SEC EDGAR.

Where does Trabud get Karen A. Foster's insider trading data?

Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.

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