Kevin R. Sayer is CEO & Chairman +1 at DEXCOM INC (DXCM). They have made 76 open-market trades across 1 company since 2012, most recently 2026-08-20.
CIK 0001286858
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 76 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DXCM | 302,214 | $26.7M |
Shares reported on the most recent Form 4, priced at the 2026-08-24 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DXCM | SELL · 10b5-1 | 2026-08-20 | 2026-08-24 | $90.01 | $2.4M | -1.0% | -3.2% | — |
| DXCM | SELL · 10b5-1 | 2026-07-20 | 2026-07-21 | $76.32 | $2.0M | +11.3% | +20.3% | +14.6% |
| DXCM | SELL · 10b5-1 | 2026-07-06 | 2026-07-07 | $72.00 | $1.9M | +4.5% | +13.1% | +18.6% |
| DXCM | SELL · 10b5-1 | 2026-05-21 | 2026-05-26 | $72.00 | $1.9M | +0.5% | -5.4% | +25.6% |
| DXCM | SELL | 2025-03-12 | 2025-03-14 | $70.38 | $4.6M | +2.6% | -4.2% | +17.8% |
| DXCM | SELL | 2025-01-29 | 2025-01-30 | $86.91 | $5.8M | -0.6% | -1.0% | -17.8% |
| DXCM | SELL · 10b5-1 | 2024-04-08 | 2024-04-10 | $138.30 | $13.7M | -6.1% | -9.3% | -20.9% |
| DXCM | SELL · 10b5-1 | 2024-03-12 | 2024-03-14 | $133.36 | $21.6M | +6.9% | +2.8% | -10.5% |
| DXCM | SELL | 2024-01-16 | 2024-01-17 | $123.63 | $9.2M | -1.6% | -7.3% | +8.1% |
| DXCM | SELL | 2023-04-03 | 2023-04-05 | $114.46 | $4.8M | +5.3% | +7.0% | +13.4% |
| DXCM | SELL | 2023-03-01 | 2023-03-02 | $109.94 | $8.5M | -6.1% | -4.4% | -2.7% |
| DXCM | SELL | 2023-01-30 | 2023-01-31 | $106.15 | $12.1M | +10.0% | +13.1% | +10.5% |
| DXCM | SELL | 2023-01-20 | 2023-01-24 | $105.75 | $9.6M | +4.5% | +7.8% | +19.4% |
| DXCM | SELL | 2022-03-15 | 2022-03-17 | $409.76 | $1.8M | +13.2% | +5.6% | -37.2% |
| DXCM | SELL | 2022-02-14 | 2022-02-15 | $418.04 | $1.3M | -0.6% | +9.2% | -22.1% |
| DXCM | SELL | 2022-01-18 | 2022-01-20 | $435.33 | $18.4M | +0.1% | -10.0% | +14.3% |
| DXCM | SELL | 2021-12-15 | 2021-12-17 | $535.81 | $2.5M | -1.6% | -21.9% | -17.4% |
| DXCM | SELL | 2021-11-15 | 2021-11-16 | $647.70 | $2.9M | -11.8% | -18.2% | -37.1% |
| DXCM | SELL | 2021-10-15 | 2021-10-18 | $549.15 | $6.4M | +4.6% | +19.5% | -21.1% |
| DXCM | SELL | 2021-09-15 | 2021-09-16 | $540.79 | $5.9M | -4.1% | -3.3% | -3.3% |
| DXCM | SELL | 2021-09-09 | 2021-09-13 | $541.36 | $3.2M | +5.6% | +1.0% | +1.3% |
| DXCM | SELL | 2021-05-03 | 2021-05-05 | $379.76 | $4.0M | -9.8% | +6.1% | +44.5% |
| DXCM | SELL | 2021-04-05 | 2021-04-07 | $366.67 | $4.6M | +4.2% | -4.9% | +16.8% |
| DXCM | SELL | 2021-03-10 | 2021-03-12 | $362.92 | $10.2M | +0.6% | +9.4% | +12.8% |
| DXCM | SELL | 2021-03-09 | 2021-03-10 | $361.29 | $2.1M | +1.1% | +7.6% | +9.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.