Quentin S. Blackford, Chief Operating Officer at DEXCOM INC (DXCM), sold 32,263 shares at $541.45 ($17.7M) on 2021-09-09, disclosed to the SEC on 2021-09-10.
Seasonal sale ($17.7M) by Chief Operating Officer — this insider has traded DXCM in September in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $545.87 | 7,639 | $4.2M | 23.6% |
| 2 | $545.87 | 7,639 | $4.2M | 23.6% |
| 3 | $546.31 | 42 | $23K | 0.1% |
| 4 | $541.36 | 1,534 | $830K | 4.7% |
| 5 | $541.36 | 1,534 | $830K | 4.7% |
| 6 | $541.45 | 515 |
| $279K |
| 1.6% |
| 7 | $541.45 | 515 | $279K | 1.6% |
| 8 | $542.03 | 19 | $10K | 0.1% |
| 9 | $542.83 | 300 | $163K | 0.9% |
| 10 | $543.66 | 100 | $54K | 0.3% |
| 11 | $545.10 | 100 | $55K | 0.3% |
| 12 | $547.28 | 900 | $493K | 2.8% |
| 13 | $548.40 | 1,200 | $658K | 3.7% |
| 14 | $549.45 | 2,394 | $1.3M | 7.4% |
| 15 | $549.45 | 2,394 | $1.3M | 7.4% |
| 16 | $550.51 | 2,200 | $1.2M | 6.9% |
| 17 | $551.28 | 200 | $110K | 0.6% |
| 18 | $558.33 | 1,519 | $848K | 4.8% |
| 19 | $558.33 | 1,519 | $848K | 4.8% |
| Total | $547.45 avg | 32,263 | $17.7M | 100% |
| Filing → |
| IRTC | SELL | 2026-02-26 | $3.5M | — | Filing → |
| IRTC | SELL | 2025-11-04 | $5.1M | — | Filing → |
| IRTC | SELL | 2025-08-06 | $9.6M | — | Filing → |