Form 4 Tracker
BIOLIFE SOLUTIONS INC
BLFS

40 insider filings · Latest: Jun 18, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
May 21, 2026May 21 11:10 PMCasdin Partners Master Fund, L.P.10% Owner
Sale
650,000$23.70$15.4M4,757,165(I)

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May 20, 2026May 21 11:10 PMCasdin Partners Master Fund, L.P.10% Owner
Sale
250,000$23.70$5.9M5,407,165(I)

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May 19, 2026May 21 11:10 PMCasdin Partners Master Fund, L.P.10% Owner
Sale
300,000$22.65$6.8M5,657,165(I)

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May 21, 2026May 21 11:04 PMCasdin Partners Master Fund, L.P.
Proposed Sale
650,000$24.00$15.6M

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May 20, 2026May 20 11:26 PMCasdin Partners Master Fund, L.P
Proposed Sale
250,000$24.00$6.0M

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May 19, 2026May 19 10:25 PMCasdin Partners Master Fund, L.P.
Proposed Sale
300,000$22.30$6.7M

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Mar 23, 2026Mar 31 9:19 PMKaren A. FosterChief Quality and Operations
Sale
2,577$19.17$49.4K108,758(D)

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Mar 23, 2026Mar 23 8:38 PMKAREN FOSTER
Proposed Sale
2,577$18.85$48.6K

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Mar 9, 2026Mar 9 10:11 PMKaren A. FosterChief Quality and Operations
Sale
500$20.00$10.0K113,242(D)

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Mar 5, 2026Mar 9 10:11 PMKaren A. FosterChief Quality and Operations
Sale
96,923$20.15$2.0M113,742(D)

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Mar 9, 2026Mar 9 8:38 PMKAREN FOSTER
Proposed Sale
500$19.86$9.9K

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Mar 3, 2026Mar 5 10:10 PMSean WernerChief Technology Officer
Sale
111$20.74$2.3K49,932(D)

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Mar 3, 2026Mar 5 10:10 PMKaren A. FosterChief Quality and Operations
Sale
418$20.74$8.7K210,665(D)

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Mar 3, 2026Mar 5 10:10 PMAby J. MathewEVP & Chief Scientific Officer
Sale
529$20.74$11.0K392,937(D)

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Mar 3, 2026Mar 5 10:10 PMTroy WichtermanChief Financial Officer
Sale
588$20.74$12.2K220,649(D)

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Mar 3, 2026Mar 5 10:10 PMSarah AebersoldChief Human Resources Officer
Sale
219$20.74$4.5K93,360(D)

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Mar 3, 2026Mar 5 10:10 PMTodd BerardChief Marketing Officer
Sale
353$20.74$7.3K165,940(D)

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Mar 5, 2026Mar 5 9:52 PMKAREN FOSTER
Proposed Sale
96,923$20.67$2.0M

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Dec 15, 2025Dec 15 9:16 PMSARAH AEBERSOLD
Proposed Sale
713$24.39$17.4K

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Dec 4, 2025Dec 4 9:42 PMTROY WICHTERMAN
Proposed Sale
30,000$25.72$771.5K

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Stock Options & Derivatives

No transactions found.