Stock market today: insider buys and sells, Tuesday, April 28, 2026
Corporate insiders filed 4 open-market purchases worth $2.3M and 28 sales worth $53.5M. The S&P 500 (SPY) fell 0.5% on the day.
Biggest insider buys
- Buy
ABT Director Daniel J Starks bought $927K of ABT at $92.65 — largest purchase by this insider in our records.
- Buy
CHTR CEO, President Christopher L Winfrey bought $597K of CHTR at $172.23 — first open-market purchase in our records.
- Buy
CHTR CEO, President Christopher L Winfrey bought $597K of CHTR at $172.23 — opens a new position.
- Buy
CHTR Director Balan Nair bought $175K of CHTR at $175.46 — first open-market purchase in our records.
Biggest insider sales
| Stock | Insider | Value | Plan |
|---|---|---|---|
| AMDAdvanced Micro Devices Inc | Mark D PapermasterCTO | $11.0M | 10b5-1 |
| MSCIMSCI Inc. | Alvise J. MunariChief Product Officer | $5.9M | — |
| BLKBlackRock, Inc. | Robert KapitoPresident | $5.7M | — |
| UNPUnion Pacific Corp | Kenyatta G RockerEvp Marketing & Sales | $4.2M | — |
| EFXEquifax Inc | Mark W BegorCEO | $3.5M | 10b5-1 |
| BLKBlackRock, Inc. | Robert KapitoPresident | $3.4M | — |
| UNPUnion Pacific Corp | Kenyatta G RockerEvp Marketing & Sales | $3.2M | — |
| GLGlobe Life Inc. | James Matthew DardenCEO, Chair | $2.7M | — |
| PEverpure, Inc. | John ColgroveChief Visionary Officer | $2.0M | 10b5-1 |
| EFXEquifax Inc | Mark W BegorCEO | $1.9M | 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.