Overview
Insider activity was concentrated in the energy, technology, and healthcare sectors, with significant selling in oil & gas and electronic components, while notable buying appeared in medical devices and pharmaceuticals.
High Signal
BSX — Chairman, President & CEO (Michael F Mahoney) purchased $9.00M (first recorded purchase). Habiger David C bought $56.89K (first recorded purchase). Dip Buy: the stock was down 13% in the previous 4 weeks. 1 other insider also purchased in the last 30 days.
CSGP — Founder and CEO (Andrew C Florance) bought $2.49M (first recorded purchase).
Notable Buys
APMD — Morningside Venture Investments Ltd purchased $5.00M (largest purchase of 5). This is their 7th trade in APMD, and the largest so far. The buy comes after a 5% decline over the past 4 weeks.
PFE — Ronald E Blaylock bought $999K (largest purchase of 5). Buckley Mortimer J purchased $960K (first recorded purchase). Both insiders increased their holdings in Pfizer, with Blaylock's purchase representing a 142% increase in holdings.
XIIIU — See Remarks (Klein Michael Stuart) purchased $3.50M (first recorded purchase) (indirect — See footnote) (private placement). This was a private placement and not an open-market buy.
Notable Sells
CVX — John B Hess sold a total of $151.6M across multiple filings between 2026-08-03 and 2026-08-03, including both direct and indirect (by trust) holdings. The sales represented reductions of 2.8% to 41% in various accounts. Selling was clustered, with multiple large blocks sold in a single day.
APH — EVP & CFO (Lampo Craig A) sold $32.3M (2nd largest sale of 21). EVP, Human Resources (Silverman David M) sold $20.9M (largest sale of 16). EVP, Secretary & GenCounsel (Lance E D'amico) sold $16.6M (multiple filings, including indirect — By Lance E. D'Amico 2024 Irrevocable Trust). The technology sector saw heavy selling, with three insiders transacting in the last 30 days.
DAL — Chief Executive Officer (Bastian Edward H) sold $19.2M (largest sale of 5). President (Carter Peter W) sold $3.71M (largest sale of 5). EVP & Pres. - International (Alain Bellemare) sold $3.25M (largest sale of 5). David G Dewalt sold $2.88M (largest sale of 5). Multiple executives sold shares, with several large transactions clustered on the same day.
GSHD — Mark & Robyn Jones Descendants Trust 2014 sold $7.53M across multiple filings between 2026-08-03 and 2026-08-04. The trust reduced its holdings by 100% in several tranches, with significant sales on consecutive days.
MHK — CHIEF EXECUTIVE OFFICER (Jeffrey S Lorberbaum) sold $7.13M across multiple filings between 2026-08-03 and 2026-08-03, including both direct and indirect (Dalton Fund, JSL Legacy Fund LP, MCL Family Funds Tr) holdings. Suzanne L Helen sold $921K (largest sale of 5) (indirect — By PASTrust fbo Suzanne Helen). The sales were spread across several accounts and trusts, with reductions in holdings ranging from 0.6% to 49%.
Patterns
- Energy and technology sectors saw the largest dollar-value insider sales, with Chevron and Amphenol insiders executing multiple large transactions.
- Healthcare insiders made high-conviction buys into recent price declines, particularly in Boston Scientific, which was down 13% over the past month.
- Several tickers, including Delta Air Lines and Mohawk Industries, saw multiple insiders or entities selling on the same day, indicating coordinated or clustered activity.
Close
Top buy tickers by $ value: BSX $9.06M, XIIIU $3.50M, APMD $5.00M.
Top sell tickers by $ value: CVX $151.6M, APH $71.6M, DAL $29.1M.