SEC Form 4Delisted · Oct 22, 2026Coverage since Aug 11, 2025Open-market trades only
$BLFS insider trading
Over the last 12 months, Biolife Solutions insiders reported no purchases and 40 sales totaling $5.9M across SEC Form 4 filings. 58% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $5.9M 40 events
- Events · 12m
- 40 Form 4 filings, grouped
- Insiders · 12m
- 13 distinct reporters
- 10b5-1 share
- 58% of events, not dollars
Side
Price · $BLFS · 3Mvia TradingView
Top insiders · 12m
Wichterman TroyChief Financial Officer6× · $851K
Foster Karen A.Chief Quality and Operations6× · $2.1M
Berard ToddChief Marketing Officer5× · $35K
Mathew Aby J.EVP & Chief Scientific Officer5× · $51K
Aebersold SarahChief Human Resources Officer4× · $40K
All insider trades
50 of 66 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Oct 6, 2026 | Wichterman TroyChief Financial Officer · O | ▽ Sale to issuer | 256,000 | — | — | -100% | — |
| Oct 6, 2026 | GOSWAMI JOYDEEPD | ▽ Sale to issuer | 53,156 | — | — | -100% | — |
| Oct 6, 2026 | Ellingson RachelD | ▽ Sale to issuer | 57,995 | — | — | -100% | — |
| Oct 6, 2026 | DuRoss AmyD | ▽ Sale to issuer | 26,857 | — | — | -100% | — |
| Oct 6, 2026 | Coste CatherineD | ▽ Sale to issuer | 13,871 | — | — | -100% | — |
| Oct 6, 2026 | DE GREEF RODERICKChief Executive Officer · O·D | ▽ Sale to issuer | 826,454 | — | — | -100% | — |
| Oct 6, 2026 | Hunt AnthonyD | ▽ Sale to issuer | 15,046 | — | — | -100% | — |
| Oct 6, 2026 | MOORE TIMOTHY L.D | ▽ Sale to issuer | 44,943 | — | — | -100% | — |
| Oct 6, 2026 | Mathew Aby J.EVP & Chief Scientific Officer · O | ▽ Sale to issuer | 404,608 | — | — | -100% | — |
| Oct 6, 2026 | Berard ToddChief Marketing Officer · O | ▽ Sale to issuer | 194,786 | — | — | -100% | — |
| Oct 6, 2026 | Werner SeanChief Technology Officer · O | ▽ Sale to issuer | 69,979 | — | — | -100% | — |
| 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 |
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.