Overview
Insider buying was concentrated in utilities, financials, and consumer discretionary sectors, while selling activity was notable in technology, energy, and consumer staples.
High Signal
VSTS — President & CEO (Barber James J.) bought $1.05M (first recorded purchase). The purchase increased holdings by 11%.
AMRZ — Chairman & CEO (Jenisch Jan Philipp) purchased $1.19M across 4 filings between 2026-09-02 and 2026-09-02 (15th, 17th, 25th, and 30th largest purchase out of 34). Additional purchases were made indirectly by spouse ($169K across 2 filings). 10 other insiders also purchased in the last 30 days. (indirect — By spouse) (indirect — By spouse)
Notable Buys
RSG — L.l.c. Cascade Investment purchased $112.6M across 7 filings between 2026-09-01 and 2026-09-02 (largest purchases on record for RSG). The buying was steady and methodical, with each transaction in the $2M–$32M range. The holding percentage change was negligible, indicating these are incremental additions to an already large position.
AON — Lester B Knight purchased $7.8M across 5 filings on 2026-09-02 (first purchases of AON). All shares were acquired indirectly by family partnership. The purchases were spread across multiple price points, and the holding percentage change was modest. (indirect — By Family Partnership)
GPI — L.L.C. Conifer Management purchased $8.8M across 6 filings between 2026-09-01 and 2026-09-02 (first purchases of GPI). All shares were acquired indirectly through commingled investment vehicles. The holding percentage change was minimal. (indirect — See footnote)
Notable Sells
POST — William P Stiritz sold $32.7M across 4 filings between 2026-09-01 and 2026-09-02 (largest sales on record for POST). All shares were sold indirectly by spouse. The sales were executed at prices in the $83–$85 range. (indirect — By Spouse)
LAUR — Snow Ian Kendell sold $19.1M across 3 filings between 2026-08-31 and 2026-09-02 (largest sales on record for LAUR). All shares were sold indirectly through investment partnerships. (indirect — See footnote)
STX — CEO (William D Mosley) sold $23.7M across 17 filings on 2026-09-01 (largest sales on record for STX). The sales were executed in small increments throughout the day, with negligible impact on overall holdings.
GNK — Shipping Inc. Diana sold $7.2M across 3 filings between 2026-09-01 and 2026-09-02 (largest sales on record for GNK). The sales were executed in large blocks at prices around $26.
PTEN — President & CEO (Hendricks William Andrew JR), Drummond Robert Wayne Jr, and EVP, General Counsel&Secretary (Wexler Seth David) sold a combined $7.3M across 4 filings between 2026-09-01 and 2026-09-02 (largest sales on record for PTEN). The sales were clustered among top executives.
Patterns
- Utilities and financials saw the largest insider buy transactions, with Cascade Investment and family partnerships leading the activity.
- Technology sector selling was dominated by a single CEO executing numerous small sales throughout the day.
- Multiple insiders in the materials sector (AMRZ) were active buyers, with 10 other insiders also purchasing in the last 30 days.
Close
Top buy tickers by $ value: RSG $112.6M, AON $7.8M, GPI $8.8M.
Top sell tickers by $ value: POST $32.7M, STX $23.7M, LAUR $19.1M.