Tuesday, August 18, 2026: insiders filed 48 open-market purchases and 308 sales

The S&P 500 (SPY) closed at 767.45, -0.68% on the day.

• Insiders of US-listed companies filed 48 open-market purchases (about $130M) at 28 companies and 308 open-market sales (about $308M) at 94 companies; see every filing of the day.
• The largest open-market purchase filed: Catalyst4, Inc. (10% owner) at Maplight Therapeutics (MPLT), about $50.1M (SEC Form 4).
• 4 insiders at Verrica Pharmaceuticals (VRCA) each filed an open-market purchase, about $211K in total (SEC Form 4).
• The largest open-market sale filed: Michael K Wirth (Chairman and CEO) at Chevron (CVX), about $61.5M (SEC Form 4).
• 10 stock-trade reports from members of Congress were disclosed; the largest range: Rep. Richard W. Allen (GA12) disclosed a sale of ABT, reported range $15,001 - $50,000 (official disclosure).
• 138 fund and investor stake filings were recorded, led by Liontrust Investment Partners LLP disclosed a new position in AZN for Q2 2026 (SEC filing).
• 1 federal contract awards of $10M or more were announced, the largest: Department of Defense awarded Amentum Holdings, Inc.: $25.5M obligated to date (USAspending record).