Insider buying on Oct 21, 2025

On Oct 21, 2025, 26 insiders at 23 companies filed 45 purchases reported on Form 4, worth $489.6M in all, with a median purchase of $58.6K. The largest was Blackstone Holdings IV GP Management (Delaware) L.P., 10% owner of CIK 2049733, who reported buying 8,634,071 shares worth $222.5M. Officers accounted for 15 purchases, directors who are not officers for 9, and 10% owners with no board or officer role for 16. Chief executives and chief financial officers filed 9 purchases: Angel Stephen F, President & CEO, Director of Csx Corp (CSX); Hawryluk P. Kent, President & CEO, Director of MBX Biosciences, Inc. (MBX); Gould Jeffrey, PRESIDENT AND CEO, Director of BRT Apartments Corp. (BRT) among others. 5 companies showed cluster buying, two or more insiders buying within 7 days, among them BRT (3 insiders), CIK 2049733 (2 insiders), MBX (2 insiders), RMCF (2 insiders). For 3 insiders of 26, this was the first purchase of that company's stock on our record. That is more than the 40 purchases filed on Oct 20, 2025. A Form 4 is due within two business days of the trade, so most of these purchases were made earlier in the week. Code P also covers shares bought privately from the company, so one large figure can be a negotiated placement rather than buying on the exchange.