Foster Karen A. Sells BIOLIFE SOLUTIONS INC Common Stock

Karen A. Foster, Chief Quality and Operations at BIOLIFE SOLUTIONS INC, sold 2,577 shares of common stock on March 23, 2026. The sales were executed under a Rule 10b5-1 trading plan. The weighted average selling price was $19.17 per share, with individual sales ranging from $18.99 to $19.35. Following these transactions, Foster directly owns 108,758 shares of common stock. The filing includes a footnote undertaking to provide full information on prices for each separate sale upon request.