SEC Form 4Coverage since Aug 11, 2025Open-market trades only
$BLFS insider trading
Over the last 12 months, Biolife Solutions insiders reported no purchases and 53 sales totaling $28.9M across SEC Form 4 filings. 85% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $28.9M 53 events
- Events · 12m
- 53 Form 4 filings, grouped
- Insiders · 12m
- 10 distinct reporters
- 10b5-1 share
- 85% of events, not dollars
Side
Price · $BLFS · 3Mvia TradingView
Top insiders · 12m
Foster Karen A.Chief Quality and Operations9× · $2.1M
Aebersold SarahChief Human Resources Officer8× · $75K
Berard ToddChief Marketing Officer8× · $316K
Wichterman TroyChief Financial Officer8× · $916K
Mathew Aby J.EVP & Chief Scientific Officer7× · $96K
All insider trades
50 of 55 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Mar 23, 2026 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 2,577 | $19.17 | $49K | -2.3% | plan · late |
| Mar 9, 2026 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 97,423 | $20.15 | $2.0M | -46.2% | 2 tranches |
| Mar 3, 2026 | Werner SeanChief Technology Officer · O | ▼ Sale | 111 | $20.74 | $2K | -0.2% | plan |
| Mar 3, 2026 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 418 | $20.74 | $9K | -0.2% | plan |
| Mar 3, 2026 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 529 | $20.74 | $11K | -0.1% | plan |
| Mar 3, 2026 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 588 | $20.74 | $12K | -0.3% | plan |
| Mar 3, 2026 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 219 | $20.74 | $5K | -0.2% | plan |
| Mar 3, 2026 | Berard ToddChief Marketing Officer · O | ▼ Sale | 353 | $20.74 | $7K | -0.2% | plan |
| Jan 6, 2026 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 990 | $25.59 | $25K | -0.7% | plan |
| Jan 6, 2026 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 335 | $25.59 | $9K | -0.2% | plan |
| Jan 6, 2026 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 241 | $25.59 | $6K | -0.3% | plan |
| Jan 6, 2026 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 405 | $25.59 | $10K | -0.1% | plan |
| Jan 6, 2026 | Berard ToddChief Marketing Officer · O | ▼ Sale | 344 | $25.59 | $9K | -0.3% | plan |
| Dec 15, 2025 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 946 | $24.63 | $23K | -1.2% | plan · 2 tranches |
| Dec 15, 2025 | DuRoss AmyD | ▼ Sale | 2,000 | $24.6 | $49K | -9.7% | — |
| Dec 9, 2025 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 631 | $25.13 | $16K | -0.2% | plan · late |
| Dec 9, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 1,033 | $25.13 | $26K | -0.7% | plan · late |
| Dec 9, 2025 | Berard ToddChief Marketing Officer · O | ▼ Sale | 358 | $25.13 | $9K | -0.3% | plan · late |
| Dec 9, 2025 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 519 | $25.13 | $13K | -0.3% | plan · late |
| Dec 4, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 30,000 | $25.72 | $772K | -16.4% | — |
| Nov 26, 2025 | DuRoss AmyD | ▼ Sale | 4,000 | $27 | $108K | -16.2% | 2 tranches |
| Nov 25, 2025 | Berard ToddChief Marketing Officer · O | ▼ Sale | 351 | $26.74 | $9K | -0.3% | plan |
| Nov 25, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 584 | $26.74 | $16K | -0.3% | plan |
| Nov 25, 2025 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 217 | $26.74 | $6K | -0.3% | plan |
| Nov 25, 2025 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 415 | $26.74 | $11K | -0.2% | plan |
| Nov 25, 2025 | Werner SeanChief Technology Officer · O | ▼ Sale | 110 | $26.74 | $3K | -0.4% | plan |
| Nov 25, 2025 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 526 | $26.74 | $14K | -0.1% | plan |
| Nov 21, 2025 | DuRoss AmyD | ▼ Sale | 6,000 | $24.76 | $149K | -19.6% | 3 tranches |
| Nov 13, 2025 | DE GREEF RODERICKPresident and CEO · O·D | ▼ Sale | 100,000 | $25.8 | $2.6M | -20.4% | 3 tranches |
| Oct 24, 2025 | GOSWAMI JOYDEEPD | ▼ Sale | 1,666 | $28.99 | $48K | -3.6% | plan |
| Oct 22, 2025 | DE GREEF RODERICKPresident and CEO · O·D | ▼ Sale | 37,795 | $27.3 | $1.0M | -7.2% | plan |
| Oct 20, 2025 | Werner SeanChief Technology Officer · O | ▼ Sale | 275 | $27.82 | $8K | -1% | plan |
| Oct 16, 2025 | GOSWAMI JOYDEEPD | ▼ Sale | 1,334 | — | — | -2.8% | plan |
| Oct 15, 2025 | Casdin Partners Master Fund, L.P.10% | ▼ Sale | 750,000 | $28.55 | $21.4M | -11.2% | indirect |
| Oct 9, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 833 | $27.36 | $23K | -0.5% | plan |
| Oct 9, 2025 | Berard ToddChief Marketing Officer · O | ▼ Sale | 289 | $27.36 | $8K | -0.2% | plan |
| Oct 9, 2025 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 509 | $27.36 | $14K | -0.1% | plan |
| Oct 9, 2025 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 188 | $27.36 | $5K | -0.2% | plan |
| Oct 9, 2025 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 419 | $27.36 | $11K | -0.2% | plan |
| Sep 15, 2025 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 714 | $25.61 | $18K | -0.9% | plan |
| Sep 11, 2025 | Werner SeanChief Technology Officer · O | ▼ Sale | 72 | $26.83 | $2K | -0.3% | plan |
| Sep 11, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 1,032 | $26.83 | $28K | -0.6% | plan |
| Sep 11, 2025 | Aebersold SarahChief Human Resources Officer · O | ▼ Sale | 233 | $26.83 | $6K | -0.3% | plan |
| Sep 11, 2025 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 511 | $26.83 | $14K | -0.3% | plan |
| Sep 11, 2025 | Berard ToddChief Marketing Officer · O | ▼ Sale | 358 | $26.83 | $10K | -0.3% | plan |
| Sep 11, 2025 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 630 | $26.83 | $17K | -0.2% | plan |
| Aug 26, 2025 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▼ Sale | 531 | $25.44 | $14K | -0.2% | plan |
| Aug 26, 2025 | Foster Karen A.Chief Quality and Operations · O | ▼ Sale | 413 | $25.44 | $11K | -0.2% | plan |
| Aug 26, 2025 | Werner SeanChief Technology Officer · O | ▼ Sale | 111 | $25.44 | $3K | -0.4% | plan |
| Aug 26, 2025 | Wichterman TroyChief Financial Officer · O | ▼ Sale | 590 | $25.44 | $15K | -0.3% | plan |
Every $BLFS filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Biolife Solutions filings can reach your inbox instead.
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $BLFS feed.