Form 4: BioLife Solutions CEO Sells Shares for Tax Obligations

Sentiment:

Insider Transaction Report 24 October 2025 5:03 PM

BioLife Solutions President and CEO, Roderick de Greef, sold 37,795 shares of common stock at $27.3 per share to cover tax withholding obligations.

Summary

Roderick de Greef, President and CEO, and a Director of BioLife Solutions Inc. (BLFS), reported a sale of common stock.
On October 22, 2025, Mr. de Greef disposed of 37,795 shares of BioLife Solutions Common Stock.
The shares were sold at a price of $27.3 per share.
Following this transaction, Mr. de Greef directly beneficially owns 489,998 shares of common stock.
The sale was executed under a Rule 10b5-1(c) trading plan, which was adopted on October 19, 2023.
The purpose of the sale was to satisfy tax withholding obligations related to the vesting of restricted stock.

Sentiment

Score: 5

Explanation: Neutral. This is a routine, non-discretionary insider sale for tax purposes under a pre-established plan, which is common for executives and does not typically indicate a change in management's outlook on the company.

Negatives

Insider sale of 37,795 shares by the President and CEO.

Future Outlook

Industry Context

Stakeholder Impact

Minimal direct impact on shareholders as this is a routine, pre-planned transaction for tax purposes and not a discretionary sale indicating a change in sentiment.
No direct impact on employees, customers, suppliers, or creditors.

Key Dates

Date	Description
10/19/2023	Effective date of the Rule 10b5-1(c) trading plan.
10/22/2025	Date of common stock transaction (sale).
10/24/2025	Date of filing the Form 4.

Recommendation

hold

The reported insider sale by President and CEO Roderick de Greef is a non-discretionary transaction executed under a Rule 10b5-1 trading plan to cover tax withholding obligations from restricted stock vesting. Such sales are routine for executives and do not typically reflect a change in management's confidence or the company's fundamentals. Therefore, this filing alone does not provide sufficient new information to alter an existing investment thesis, warranting a 'hold' recommendation.

Keywords

BioLife Solutions, BLFS, Roderick de Greef, Insider Trading, Form 4, Stock Sale, Rule 10b5-1, Tax Withholding, Restricted Stock

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