Casdin Partners Master Fund increases stake in Standard Biotoools with significant share purchases.

Standard Biotoools Inc., a leading laboratory equipment provider, has announced that Casdin Partners Master Fund, a director and 10% owner of the company, has made significant investments in the firm. On November 18, 2025, Casdin Partners acquired 275,000 shares at a price of $1.23 per share. Subsequently, on November 19, 2025, the fund purchased an additional 350,000 shares at $1.28 per share. Finally, on November 20, 2025, Casdin Partners acquired 450,000 shares at $1.3 per share. These substantial investments demonstrate the fund's confidence in the company's future prospects and highlight the value it sees in Standard Biotoools' innovative laboratory equipment solutions.