Stock market today: insider buys and sells, Monday, December 8, 2025
Corporate insiders filed 5 open-market purchases worth $26.6M and 58 sales worth $99.7M. The S&P 500 (SPY) fell 0.3% on the day.
Biggest insider buys
- Buy
CRM See Remarks G Mason Morfit bought $25.0M of CRM at $260.58 — first open-market purchase in our records.
- Buy
LIN CEO Sanjiv Lamba bought $1000K of LIN at $396.68 — first open-market purchase in our records.
- Buy
PODD Director Timothy C. Stonesifer bought $300K of PODD at $311.73 — first open-market purchase in our records; raises the stake by 27%.
- Buy
ECL Director David Maclennan bought $193K of ECL at $257.60 — first open-market purchase in our records.
- Buy
NSC Director William Clyburn Jr. bought $60K of NSC at $294.79 — first open-market purchase in our records; raises the stake by 101%.
Biggest insider sales
| Stock | Insider | Value | Plan |
|---|---|---|---|
| FANGDiamondback Energy, Inc. | Charles Alvin MeloyDirector | $52.4M | — |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $4.1M | 10b5-1 |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $2.9M | 10b5-1 |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $2.5M | 10b5-1 |
| LLoews Corp | Andrew H TischDirector Emeritus | $2.5M | — |
| WDCWestern Digital Corp | Vidyadhara K GubbiChief Of Global Operations | $2.2M | — |
| AMDAdvanced Micro Devices Inc | Paul Darren GrasbyEvp & Cso | $2.2M | — |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $1.8M | 10b5-1 |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $1.8M | 10b5-1 |
| GWWW.W. Grainger, Inc. | Donald G MacphersonCEO, Chair | $1.8M | 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.