Foster Karen A.
Chief Quality and Operations
Foster Karen A. has filed 10 SEC Form 4 filings (12 transaction rows) across 1 company, with disclosures dating back to 2025. 10 of those filings fall inside the rolling window. Most recent filing: Mar 31, 2026.
On the most recent filing, Foster Karen A. is listed as Chief Quality and Operations at BIOLIFE SOLUTIONS INC. Inside the rolling window, Foster Karen A. reported no open-market purchases and 9 open-market sales totaling $2.1M in BLFS. The largest disclosed transaction in the window is a sale of 96,923 BLFS shares on Mar 5, 2026, worth $2.0M.
Companies traded
Other insiders at BLFS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$2.1M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| BLFS | Chief Quality and Operations | Sale | 2,577 | $49K | Mar 31 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 96,923 | $2.0M | Mar 9 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 500 | $10K | Mar 9 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 418 | $9K | Mar 5 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 335 | $9K | Jan 8 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 519 | $13K | Dec 17 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 415 | $11K | Nov 28 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 419 | $11K | Oct 14 | SEC ↗ | |
| BLFS | Chief Quality and Operations | Sale | 511 | $14K | Sep 15 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Foster Karen A. made?
Foster Karen A. has filed 10 SEC Form 4 filings (12 transaction rows) across 1 company since 2025.
Which companies does Foster Karen A. trade?
Foster Karen A. has filed SEC Form 4 disclosures for 1 company, including BLFS.
When was Foster Karen A.'s most recent SEC Form 4 filing?
Foster Karen A.'s most recent SEC Form 4 filing on Tracefour is dated Mar 31, 2026.
What is Foster Karen A.'s job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Foster Karen A. is listed as Chief Quality and Operations.
What is Foster Karen A.'s total buy and sell value in the current window?
Inside the rolling retention window, Foster Karen A. bought $0 and sold $2.1M based on SEC Form 4 filings.
What was Foster Karen A.'s largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 96,923 BLFS shares on 2026-03-05, worth $2.0M, per SEC Form 4 filings.