Insider Trading for BLFS
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
Acquisitions: 0 shares
Dispositions: 1.9K shares
Net: -1.9K shares
Insiders have been net sellers recently, which could indicate concerns about current valuation or short-term outlook.
Quarterly Activity (3 Months)
Acquisitions: 0 shares
Dispositions: 1.2M shares
Net: -1.2M shares
Insiders have been net sellers over the quarter, which institutional investors may view as a cautionary signal.
Key Insider Activity: Sep 11, 2025 to Jul 17, 2026
Casdin Partners Master Fund, L.P.
Other10 Percent Owner
-1.9M shares
4 transactions
DE GREEF RODERICK
ExecutiveChief Executive Officer
+203.2K shares
11 transactions
Foster Karen A.
ExecutiveOfficer: Chief Quality And Operations
-85.4K shares
12 transactions
Wichterman Troy
ExecutiveCorporate Officer
+28.0K shares
15 transactions
Mathew Aby J.
ExecutiveVice President
+36.4K shares
14 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Jul 17, 2026 | Werner Sean | ECorporate Officer | Payment In Kind | 275 | $29.15 | $8,016.25 | 47.6K | View |
| Jul 7, 2026 | Wichterman Troy | ECorporate Officer | Payment In Kind | 844 | $27.79 | $23,454.76 | 213.2K | View |
| Jul 7, 2026 | Mathew Aby J. | EVice President | Payment In Kind | 516 | $27.79 | $14,339.64 | 388.5K | View |
Jul 7, 2026 | Locked | — | — | — | — | — | — | — |
Jun 18, 2026 | Locked | — | — | — | — | — | — | — |
Jun 18, 2026 | Locked | — | — | — | — | — | — | — |
Jun 18, 2026 | Locked | — | — | — | — | — | — | — |
Jun 18, 2026 | Locked | — | — | — | — | — | — | — |
Jun 18, 2026 | Locked | — | — | — | — | — | — | — |
Jun 8, 2026 | Locked | — | — | — | — | — | — | — |
Jun 8, 2026 | Locked | — | — | — | — | — | — | — |
Jun 8, 2026 | Locked | — | — | — | — | — | — | — |
May 21, 2026 | Locked | — | — | — | — | — | — | — |
May 20, 2026 | Locked | — | — | — | — | — | — | — |
May 19, 2026 | Locked | — | — | — | — | — | — | — |
Apr 8, 2026 | Locked | — | — | — | — | — | — | — |
Apr 8, 2026 | Locked | — | — | — | — | — | — | — |
Apr 8, 2026 | Locked | — | — | — | — | — | — | — |
Mar 23, 2026 | Locked | — | — | — | — | — | — | — |
Mar 19, 2026 | Locked | — | — | — | — | — | — | — |
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Mar 19, 2026 | Locked | — | — | — | — | — | — | — |
Mar 9, 2026 | Locked | — | — | — | — | — | — | — |
Mar 5, 2026 | Locked | — | — | — | — | — | — | — |
Mar 3, 2026 | Locked | — | — | — | — | — | — | — |
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Mar 3, 2026 | Locked | — | — | — | — | — | — | — |
Feb 24, 2026 | Locked | — | — | — | — | — | — | — |
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Feb 24, 2026 | Locked | — | — | — | — | — | — | — |
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Feb 24, 2026 | Locked | — | — | — | — | — | — | — |
Feb 24, 2026 | Locked | — | — | — | — | — | — | — |
Feb 24, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
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Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Dec 15, 2025 | Locked | — | — | — | — | — | — | — |
Dec 15, 2025 | Locked | — | — | — | — | — | — | — |
Dec 9, 2025 | Locked | — | — | — | — | — | — | — |
Dec 9, 2025 | Locked | — | — | — | — | — | — | — |
Dec 9, 2025 | Locked | — | — | — | — | — | — | — |
Dec 9, 2025 | Locked | — | — | — | — | — | — | — |
Dec 9, 2025 | Locked | — | — | — | — | — | — | — |
Dec 4, 2025 | Locked | — | — | — | — | — | — | — |
Nov 26, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 21, 2025 | Locked | — | — | — | — | — | — | — |
Nov 20, 2025 | Locked | — | — | — | — | — | — | — |
Nov 19, 2025 | Locked | — | — | — | — | — | — | — |
Nov 13, 2025 | Locked | — | — | — | — | — | — | — |
Nov 12, 2025 | Locked | — | — | — | — | — | — | — |
Nov 11, 2025 | Locked | — | — | — | — | — | — | — |
Oct 24, 2025 | Locked | — | — | — | — | — | — | — |
Oct 22, 2025 | Locked | — | — | — | — | — | — | — |
Oct 20, 2025 | Locked | — | — | — | — | — | — | — |
Oct 16, 2025 | Locked | — | — | — | — | — | — | — |
Oct 15, 2025 | Locked | — | — | — | — | — | — | — |
Oct 9, 2025 | Locked | — | — | — | — | — | — | — |
Oct 9, 2025 | Locked | — | — | — | — | — | — | — |
Oct 9, 2025 | Locked | — | — | — | — | — | — | — |
Oct 9, 2025 | Locked | — | — | — | — | — | — | — |
Oct 9, 2025 | Locked | — | — | — | — | — | — | — |
Sep 15, 2025 | Locked | — | — | — | — | — | — | — |
Sep 11, 2025 | Locked | — | — | — | — | — | — | — |
Sep 11, 2025 | Locked | — | — | — | — | — | — | — |
Sep 11, 2025 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net buyers of BLFS stock, which is typically a strong positive signal.