Wednesday, September 16, 2026: insiders filed 54 open-market purchases and 367 sales

The S&P 500 (SPY) closed at 754.05, -0.44% on the day.

• Insiders of US-listed companies filed 54 open-market purchases (about $24.4M) at 31 companies and 367 open-market sales (about $432M) at 76 companies; see every filing of the day.
• The largest open-market purchase filed: NIPPON LIFE INSURANCE CO (10% owner) at Corebridge Financial (CRBG), about $10.3M (SEC Form 4).
• 3 insiders at Cytosorbents (CTSO) each filed an open-market purchase, about $50K in total (SEC Form 4).
• The largest open-market sale filed: William D Mosley (CEO) at Seagate Technology (STX), about $75.6M (SEC Form 4).
• 6 federal contract awards of $10M or more were announced, the largest: Department of Transportation awarded RTX: $438M obligated to date (USAspending record).