Form 4: BioLife Solutions Officer Sells Shares for Tax Obligations

BioLife Solutions' Chief Quality and Operations, Karen A. Foster, sold 519 shares of common stock to cover tax withholding obligations.

Summary

• Karen A. Foster, Chief Quality and Operations of BioLife Solutions Inc. (BLFS), reported a sale of common stock.
• On December 9, 2025, Foster sold 519 shares of BLFS common stock at a price of $25.13 per share.
• The total value of the shares sold is approximately $13,032.07.
• Following this transaction, Foster beneficially owns 192,319 shares of common stock.
• The sale was executed under a Rule 10b5-1(c) trading plan, adopted on March 8, 2024, specifically to satisfy tax withholding obligations related to the vesting of restricted stock.

Sentiment

Score: 5

Explanation: The transaction is a routine insider sale for tax purposes under a pre-arranged plan, indicating a neutral impact on company sentiment.

Future Outlook

NA

Industry Context

This is a routine insider transaction for tax purposes and does not reflect broader industry trends or competitive positioning. Such sales are common for executives receiving equity compensation.

Stakeholder Impact

• Minimal direct impact on shareholders as this is a small, routine sale by an executive for tax purposes, not indicative of a change in company fundamentals or executive confidence.
• No direct impact on employees, customers, suppliers, or creditors.

Key Dates

Recommendation

This Form 4 filing reports a routine insider sale by an executive to cover tax obligations associated with restricted stock vesting, executed under a pre-arranged 10b5-1 plan. Such transactions are common and generally do not reflect a change in the executive's long-term outlook on the company or its fundamentals. Therefore, it provides no new information that would warrant a change in investment recommendation based solely on this filing.

Keywords

BioLife Solutions, BLFS, Form 4, Insider Trading, Stock Sale, Karen A. Foster, Rule 10b5-1, Tax Withholding, Restricted Stock