Stock market today: insider buys and sells, Thursday, August 13, 2026
Corporate insiders filed 4 open-market purchases worth $668K and 67 sales worth $118M. The S&P 500 (SPY) rose 0.7% on the day.
Biggest insider buys
- Buy
CEG Director Roger W Crandall bought $418K of CEG at $278.62 — first open-market purchase in our records; raises the stake by 777%.
- Buy
BRK-B See Remarks Michael J. O'sullivan bought $205K of BRK-B at $512.52 — raises the stake by 56%.
- Buy
BRK-B See Remarks Michael J. O'sullivan bought $23K of BRK-B at $510.64.
- Buy
BRK-B See Remarks Michael J. O'sullivan bought $22K of BRK-B at $513.61.
Biggest insider sales
| Stock | Insider | Value | Plan |
|---|---|---|---|
| AIGAmerican International Group, Inc. | Peter ZaffinoChair | $15.3M | 10b5-1 |
| PSXPhillips 66 | Richard G HarbisonEvp, Refining | $11.7M | — |
| MRKMerck & Co., Inc. | Jennifer ZacharyGeneral Counsel | $10.7M | — |
| TMOThermo Fisher Scientific Inc. | Michael D ShaferPresident | $8.6M | 10b5-1 |
| ETNEaton Corp plc | Heath B. MonesmithSee Remarks Below. | $8.3M | — |
| TMOThermo Fisher Scientific Inc. | Michael D ShaferPresident | $6.7M | 10b5-1 |
| KLACKla Corp | Bren D. HigginsCFO | $6.6M | 10b5-1 |
| SCHWSchwab Charles Corp | Charles R. SchwabChair | $5.0M | — |
| PEverpure, Inc. | John ColgroveChief Visionary Officer | $4.3M | 10b5-1 |
| PEverpure, Inc. | John ColgroveChief Visionary Officer | $4.1M | 10b5-1 |
Biggest moves among these stocks
Share-price change on the day, for stocks with insider filings.
Filing dates are when the SEC received each Form 4; trades can be up to two business days earlier. Facts from public filings, not investment advice.