BIOLIFE SOLUTIONS INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for BIOLIFE SOLUTIONS INC (BLFS), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · 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
Are BLFS insiders buying or selling?
In the last 12 months, BIOLIFE SOLUTIONS INC insiders reported 0 open-market purchases ($0) and 34 sales ($35.1M) — net selling of $35.1M. Since January 2018, Trabud has recorded 685 Form 4 filings for BLFS: 15 buys ($90.5M) and 670 sells ($333.1M).
Source: SEC EDGAR Form 4
What stands out
- No BIOLIFE SOLUTIONS INC insider made an open-market purchase in the last 12 months; the 34 reported open-market sales totaled $35.1M.
Key Statistics (January 2018 – May 21, 2026)
Total Form 4 filings
685
SEC EDGAR
Insider filers
20
Insider buys (15)
$90.5M
Insider sells (670)
$333.1M
Insider sentiment
Net sellingNet insider flow of $242.6M in net selling since January 2018, and $35.1M in net selling over the last 12 months.
Recent BLFS insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| May 21, 2026 | Eli Casdin | 10% Owner | Sale | 1.2M | $23.44 | $28.1M | SEC ↗ |
| Mar 31, 2026 | Karen A. Foster | Chief Quality and Operations | Sale | 2.6K | $19.17 | $49.4K | SEC ↗ |
| Mar 9, 2026 | Karen A. Foster | Chief Quality and Operations | Sale | 97.4K | $20.15 | $2.0M | SEC ↗ |
| Mar 5, 2026 | Sean Werner | Chief Technology Officer | Sale | 111 | $20.74 | $2.3K | SEC ↗ |
| Mar 5, 2026 | Karen A. Foster | Chief Quality and Operations | Sale | 418 | $20.74 | $8.7K | SEC ↗ |
| Mar 5, 2026 | Aby J. Mathew | EVP & Chief Scientific Officer | Sale | 529 | $20.74 | $11.0K | SEC ↗ |
| Mar 5, 2026 | Troy Wichterman | Chief Financial Officer | Sale | 588 | $20.74 | $12.2K | SEC ↗ |
| Mar 5, 2026 | Sarah Aebersold | Chief Human Resources Officer | Sale | 219 | $20.74 | $4.5K | SEC ↗ |
| Mar 5, 2026 | Todd Berard | Chief Marketing Officer | Sale | 353 | $20.74 | $7.3K | SEC ↗ |
| Jan 8, 2026 | Troy Wichterman | Chief Financial Officer | Sale | 990 | $25.59 | $25.3K | SEC ↗ |
| Jan 8, 2026 | Karen A. Foster | Chief Quality and Operations | Sale | 335 | $25.59 | $8.6K | SEC ↗ |
| Jan 8, 2026 | Sarah Aebersold | Chief Human Resources Officer | Sale | 241 | $25.59 | $6.2K | SEC ↗ |
| Jan 8, 2026 | Aby J. Mathew | EVP & Chief Scientific Officer | Sale | 405 | $25.59 | $10.4K | SEC ↗ |
| Jan 8, 2026 | Todd Berard | Chief Marketing Officer | Sale | 344 | $25.59 | $8.8K | SEC ↗ |
| Dec 17, 2025 | Aby J. Mathew | EVP & Chief Scientific Officer | Sale | 631 | $25.13 | $15.9K | SEC ↗ |
| Dec 17, 2025 | Troy Wichterman | Chief Financial Officer | Sale | 1.0K | $25.13 | $26.0K | SEC ↗ |
| Dec 17, 2025 | Sarah Aebersold | Chief Human Resources Officer | Sale | 946 | $24.63 | $23.3K | SEC ↗ |
| Dec 17, 2025 | Amy Duross | Director | Sale | 2.0K | $24.60 | $49.2K | SEC ↗ |
| Dec 17, 2025 | Todd Berard | Chief Marketing Officer | Sale | 358 | $25.13 | $9.0K | SEC ↗ |
| Dec 17, 2025 | Karen A. Foster | Chief Quality and Operations | Sale | 519 | $25.13 | $13.0K | SEC ↗ |
| Dec 5, 2025 | Troy Wichterman | Chief Financial Officer | Sale | 30.0K | $25.72 | $771.6K | SEC ↗ |
| Nov 28, 2025 | Amy Duross | Director | Sale | 4.0K | $27.00 | $108.0K | SEC ↗ |
| Nov 28, 2025 | Todd Berard | Chief Marketing Officer | Sale | 351 | $26.74 | $9.4K | SEC ↗ |
| Nov 28, 2025 | Troy Wichterman | Chief Financial Officer | Sale | 584 | $26.74 | $15.6K | SEC ↗ |
| Nov 28, 2025 | Sarah Aebersold | Chief Human Resources Officer | Sale | 217 | $26.74 | $5.8K | SEC ↗ |
Showing the 25 most recent of 685 Form 4 filings for BIOLIFE SOLUTIONS INC.
Most active BLFS insiders
- Aby J. Mathew103 filings
- Michael Rice93 filings
- Karen A. Foster81 filings
- Todd Berard80 filings
- Troy Wichterman59 filings
Ask anything about BLFS insider activity
Use Trabud's AI agent to query BIOLIFE SOLUTIONS INC's Form 4 history in plain English — "Show me BLFS CEO purchases this year" or compare it against any other ticker.
Open the AI agentBLFS insider trading FAQ
Are BIOLIFE SOLUTIONS INC insiders buying or selling?
In the last 12 months, BIOLIFE SOLUTIONS INC insiders reported 0 open-market purchases ($0) and 34 sales ($35.1M) — net selling of $35.1M. Since January 2018, Trabud has recorded 685 Form 4 filings for BLFS: 15 buys ($90.5M) and 670 sells ($333.1M). Over the full record that is net selling of $242.6M.
How many insiders trade BLFS stock?
20 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for BIOLIFE SOLUTIONS INC. The most recent filing was accepted on May 21, 2026.
Where does Trabud get BLFS insider trading data?
All BLFS insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.