Sean Werner - 19 Mar 2026 Form 4 Insider Report for BIOLIFE SOLUTIONS INC (BLFS)

Reporting relationship: Chief Technology Officer
Issuer ticker: BLFS
Reported as of: 19 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Mar 2026, 17:08:55 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Sean Werner

Key filing fact

Sean Werner filed Form 4 for BIOLIFE SOLUTIONS INC (BLFS) on 23 Mar 2026.

Key facts

This page summarizes Sean Werner's Form 4 filing for BIOLIFE SOLUTIONS INC (BLFS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 23 Mar 2026, 17:08.

Change

Previous filing in this sequence was filed on 05 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002047541 Primary reporting owner

Werner Sean

Relationship: Chief Technology Officer
Address: 3303 MONTE VILLA PARKWAY, SUITE 310, BOTHELL
Signature: /s/ Sean Werner
Signature date: 23 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BLFS transaction

Common Stock

Tax liability

Transaction value
Shares: -1,681
Change %: -3.4%
Price: $19.12^*
Shares after: 48,251
Date: 19 Mar 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units.