<div id="readability-page-1"><div><p><span>Casdin Partners Master Fund LP Beneficial Owner of Standard BioTools Inc [LAB] filed a Form 4 on November 17, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><td><span>Date</span></td><td><span>11/13/25-11/17/25</span></td></tr><tr><td><span>Transaction</span></td><td><span>Purchase</span></td></tr><tr><td><span>Shares</span></td><td><span>925,000</span></td></tr><tr><td><span>Price</span></td><td><span>$1.22</span></td></tr><tr><td><span>Value</span></td><td><span>$1,126,743</span></td></tr></tbody></table></div><p><span>Ending Holdings: 82,559,918 (2,901,062 - Direct, 79,658,856 - Indirect)</span></p><p><span>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.</span></p><p><span>Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data.</span></p><span> </span></div></div>

<p>Casdin Partners Master Fund LP purchased 925,000 shares of Standard BioTools Inc [LAB] for $1.1 million, as disclosed in a Form 4 filed with the SEC. The transaction occurred between November 13-17, 2025, at a price of $1.22 per share. The fund's ending holdings are 82,559,918 shares, with 2,901,062 held directly and 79,658,856 indirectly.</p>

Owner Casdin Partners Master Fund LP Buys 925,000 ($1.1M) Of Standard BioTools Inc [LAB]