Nasdaqยท2025-09-19 15:27Insider Buying Summary - Recent insider buying activity indicates confidence in stock performance, with notable purchases from executives at Archrock and ALX Oncology Holdings [1] Archrock (AROC) - Jason C. Rebrook, an insider at Archrock, purchased 10,000 shares at $24.17 each, totaling an investment of $241,670 [2] - Following the purchase, AROC experienced a high of $24.77, reflecting a gain of approximately 2.5% at the peak of trading [2] - Despite this, Archrock's stock was down about 0.4% on the day of the report [2] ALX Oncology Holdings (ALXO) - CEO Jason Lettmann acquired 92,233 shares for $99,352, at a price of $1.08 each, marking his first purchase in the past year [3] - ALX Oncology Holdings saw a significant increase, trading up about 20.6% on the day of the report [3] - Lettmann's investment was up approximately 30.0% at the peak of trading, with ALXO reaching a high of $1.40 [3]