Stock market today: insider buys and sells, Tuesday, August 4, 2026
Corporate insiders filed 5 open-market purchases worth $2.3M and 178 sales worth $222M. The S&P 500 (SPY) rose 1.8% on the day.
Biggest insider buys
- Buy
CVNA Director Michael E Maroone bought $1.3M of CVNA at $61.69 — largest purchase by this insider in our records.
- Buy
BG Director Christopher Mahoney bought $528K of BG at $105.53 — first open-market purchase in our records; raises the stake by 60%.
- Buy
CVNA Director Michael E Maroone bought $240K of CVNA at $62.40.
- Buy
BG Director Christopher Mahoney bought $161K of BG at $107.60.
- Buy
TSCO Director Andre J Hawaux bought $100K of TSCO at $31.83 — first open-market purchase in our records; opens a new position.
Biggest insider sales
| Stock | Insider | Value | Plan |
|---|---|---|---|
| DVADavita Inc. | Berkshire Hathaway Inc10% Owner | $36.5M | — |
| FTNTFortinet, Inc. | Ken XieCEO, President | $11.1M | 10b5-1 |
| SCHWSchwab Charles Corp | Charles R. SchwabChair | $10.1M | — |
| GDGeneral Dynamics Corp | Marguerite Amy GillilandPresident | $9.9M | — |
| MAMastercard Inc | Michael MiebachCEO, President | $9.6M | 10b5-1 |
| MAMastercard Inc | Michael MiebachCEO, President | $9.4M | 10b5-1 |
| GDGeneral Dynamics Corp | Phebe N NovakovicCEO, Chair | $8.7M | — |
| FTNTFortinet, Inc. | Ken XieCEO, President | $7.9M | 10b5-1 |
| GDGeneral Dynamics Corp | Marguerite Amy GillilandPresident | $6.4M | — |
| GDGeneral Dynamics Corp | Phebe N NovakovicCEO, Chair | $6.1M | — |
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.