Karen A. Foster insider trades: Biolife Solutions (BLFS) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Karen reports to the SEC
Open-market buys and sales
82 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 23, 2026 | BLFS | ↓ Sell | 2,577 | $19.17 | $49K | Direct | Mar 31, 2026 (8d) |
| Mar 9, 2026 | BLFS | ↓ Sell | 97,423 | $20.15 | $2.0M | Direct | Mar 9, 2026 (0d) |
| Mar 3, 2026 | BLFS | ↓ Sell | 418 | $20.74 | $9K | Direct | Mar 5, 2026 (2d) |
| Jan 6, 2026 | BLFS | ↓ Sell | 335 | $25.59 | $9K | Direct | Jan 8, 2026 (2d) |
| Dec 9, 2025 | BLFS | ↓ Sell | 519 | $25.13 | $13K | Direct | Dec 17, 2025 (8d) |
| Nov 25, 2025 | BLFS | ↓ Sell | 415 | $26.74 | $11K | Direct | Nov 28, 2025 (3d) |
| Oct 9, 2025 | BLFS | ↓ Sell | 419 | $27.36 | $11K | Direct | Oct 14, 2025 (5d) |
| Sep 11, 2025 | BLFS | ↓ Sell | 511 | $26.83 | $14K | Direct | Sep 15, 2025 (4d) |
| Aug 26, 2025 | BLFS | ↓ Sell | 413 | $25.44 | $11K | Direct | Aug 28, 2025 (2d) |
| Jul 7, 2025 | BLFS | ↓ Sell | 400 | $22.27 | $9K | Direct | Jul 9, 2025 (2d) |
| Jun 10, 2025 | BLFS | ↓ Sell | 320 | $23.70 | $8K | Direct | Jun 12, 2025 (2d) |
| May 28, 2025 | BLFS | ↓ Sell | 251 | $22.46 | $6K | Direct | May 30, 2025 (2d) |
| Apr 9, 2025 | BLFS | ↓ Sell | 286 | $20.11 | $6K | Direct | Apr 11, 2025 (2d) |
| Apr 1, 2025 | BLFS | ↓ Sell | 7,869 | $22.66 | $178K | Direct | Apr 3, 2025 (2d) |
| Mar 11, 2025 | BLFS | ↓ Sell | 1,331 | $25.00 | $33K | Direct | Mar 13, 2025 (2d) |
| Mar 3, 2025 | BLFS | ↓ Sell | 324 | $25.46 | $8K | Direct | Mar 5, 2025 (2d) |
| Feb 12, 2025 | BLFS | ↓ Sell | 78 | $26.54 | $2K | Direct | Feb 14, 2025 (2d) |
| Jan 6, 2025 | BLFS | ↓ Sell | 328 | $27.02 | $9K | Direct | Jan 8, 2025 (2d) |
| Nov 26, 2024 | BLFS | ↓ Sell | 252 | $27.20 | $7K | Direct | Nov 29, 2024 (3d) |
| Nov 12, 2024 | BLFS | ↓ Sell10b5-1 | 66 | $26.34 | $2K | Direct | Nov 14, 2024 (2d) |
| Oct 30, 2024 | BLFS | ↓ Sell | 277 | $23.15 | $6K | Direct | Nov 1, 2024 (2d) |
| Sep 16, 2024 | BLFS | ↓ Sell | 603 | $24.16 | $15K | Direct | Sep 18, 2024 (2d) |
| May 29, 2024 | BLFS | ↓ Sell | 408 | $21.78 | $9K | Direct | May 31, 2024 (2d) |
| May 17, 2024 | BLFS | ↓ Sell | 85 | $22.18 | $2K | Direct | May 21, 2024 (4d) |
| Apr 18, 2024 | BLFS | ↓ Sell | 481 | $15.31 | $7K | Direct | Apr 23, 2024 (5d) |
| Mar 27, 2024 | BLFS | ↓ Sell | 395 | $17.99 | $7K | Direct | Mar 29, 2024 (2d) |
| Mar 12, 2024 | BLFS | ↓ Sell | 5,496 | $16.65 | $91K | Direct | Mar 12, 2024 (0d) |
| Feb 21, 2024 | BLFS | ↓ Sell | 87 | $17.35 | $2K | Direct | Feb 23, 2024 (2d) |
| Jan 19, 2024 | BLFS | ↓ Sell | 1,198 | $16.76 | $20K | Direct | Jan 23, 2024 (4d) |
| Jan 2, 2024 | BLFS | ↓ Sell | 601 | $16.75 | $10K | Direct | Jan 4, 2024 (2d) |
| Dec 1, 2023 | BLFS | ↓ Sell | 466 | $12.37 | $6K | Direct | Dec 4, 2023 (3d) |
| Nov 13, 2023 | BLFS | ↓ Sell | 114 | $10.77 | $1K | Direct | Nov 15, 2023 (2d) |
| Sep 28, 2023 | BLFS | ↓ Sell | 568 | $14.16 | $8K | Direct | Oct 2, 2023 (4d) |
| Aug 25, 2023 | BLFS | ↓ Sell | 410 | $10.99 | $5K | Direct | Aug 29, 2023 (4d) |
| Aug 14, 2023 | BLFS | ↓ Sell | 156 | $12.38 | $2K | Direct | Aug 16, 2023 (2d) |
| Jun 27, 2023 | BLFS | ↓ Sell | 590 | $22.91 | $14K | Direct | Jun 29, 2023 (2d) |
| May 31, 2023 | BLFS | ↓ Sell | 392 | $23.21 | $9K | Direct | Jun 2, 2023 (2d) |
| May 15, 2023 | BLFS | ↓ Sell | 106 | $18.71 | $2K | Direct | May 17, 2023 (2d) |
| Apr 6, 2023 | BLFS | ↓ Sell | 1,101 | $20.03 | $22K | Direct | Apr 10, 2023 (4d) |
| Mar 29, 2023 | BLFS | ↓ Sell | 390 | $20.62 | $8K | Direct | Mar 31, 2023 (2d) |
| Mar 7, 2023 | BLFS | ↓ Sell | 175 | $22.95 | $4K | Direct | Mar 9, 2023 (2d) |
| Mar 1, 2023 | BLFS | ↓ Sell | 1,203 | $22.75 | $27K | Direct | Mar 3, 2023 (2d) |
| Feb 9, 2023 | BLFS | ↓ Sell | 81 | $24.60 | $2K | Direct | Feb 13, 2023 (4d) |
| Dec 28, 2022 | BLFS | ↓ Sell | 605 | $16.90 | $10K | Direct | Dec 30, 2022 (2d) |
| Nov 29, 2022 | BLFS | ↓ Sell | 307 | $19.93 | $6K | Direct | Nov 30, 2022 (1d) |
| Nov 10, 2022 | BLFS | ↓ Sell | 91 | $23.16 | $2K | Direct | Nov 14, 2022 (4d) |
| Sep 29, 2022 | BLFS | ↓ Sell | 559 | $23.02 | $13K | Direct | Sep 30, 2022 (1d) |
| Aug 31, 2022 | BLFS | ↓ Sell | 299 | $23.44 | $7K | Direct | Sep 1, 2022 (1d) |
| Aug 10, 2022 | BLFS | ↓ Sell | 95 | $23.17 | $2K | Direct | Aug 11, 2022 (1d) |
| Jun 28, 2022 | BLFS | ↓ Sell | 598 | $14.86 | $9K | Direct | Jun 30, 2022 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other BLFS insiders
Open-market trades in the last 12 months
About Karen A. Foster's insider trades
Karen A. Foster is Chief Quality and Operations at Biolife Solutions (BLFS). Since Feb 26, 2020, Karen has reported no open-market purchases and 82 sales worth $10.6M on SEC Form 4. In the last 12 months: 6 sales ($2.1M).
1 sale (0% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.
Their filings also include grants and awards (28 filings), option exercises (13 filings), shares withheld for taxes (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every BLFS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.