Jess Roper is CFO & VP at DEXCOM INC (DXCM). They have made 17 open-market trades across 1 company since 2008, most recently 2026-08-17.
CIK 0001408993
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.
1 open-market purchase totalling $8K since 2008, against 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DXCM | SELL | 2017-03-22 | 2017-03-24 | $75.97 | $152K | -2.5% | -8.8% | -4.2% |
| DXCM | SELL | 2017-02-22 | 2017-02-24 | $78.76 | $367K | +0.1% | +6.6% | -11.6% |
| DXCM | SELL | 2017-01-18 | 2017-01-20 | $85.01 | $512K | -0.3% | +0.4% | -4.7% |
| DXCM | SELL | 2016-12-14 | 2016-12-16 | $64.14 | $313K | -5.1% | +33.7% | +21.1% |
| DXCM | SELL | 2016-10-24 | 2016-10-26 | $80.75 | $399K | -17.4% | -4.6% | +4.6% |
| DXCM | SELL | 2016-09-22 | 2016-09-23 | $93.99 | $464K | -10.9% | -12.0% | -33.6% |
| DXCM | SELL | 2016-06-07 | 2016-06-08 | $69.00 | $239K | +5.3% | +7.6% | +28.6% |
| DXCM | SELL | 2016-04-25 | 2016-04-26 | $69.00 | $239K | -11.2% | -8.6% | +27.1% |
| DXCM | SELL | 2016-03-31 | 2016-04-01 | $69.00 | $239K | -3.3% | -4.5% | +16.4% |
| DXCM | SELL | 2016-01-22 | 2016-01-25 | $72.97 | $513K | -3.1% | -11.6% | -5.2% |
| DXCM | SELL · 10b5-1 | 2015-12-22 | 2015-12-23 | $81.19 | $277K | -11.2% | -7.8% | -21.9% |
| DXCM | SELL · 10b5-1 | 2015-11-18 | 2015-11-19 | $84.15 | $589K | -11.2% | -2.2% | -23.0% |
| DXCM | SELL | 2015-11-12 | 2015-11-16 | $84.07 | $1.7M | -11.2% | -2.2% | -26.2% |
| DXCM | SELL · 10b5-1 | 2015-10-19 | 2015-10-20 | $83.37 | $584K | -11.2% | -2.2% | -9.8% |
| DXCM | SELL · 10b5-1 | 2015-09-18 | 2015-09-21 | $101.22 | $709K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-08-18 | 2015-08-21 | $97.29 | $681K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-07-20 | 2015-07-22 | $83.73 | $586K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-06-18 | 2015-06-22 | $77.10 | $540K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-05-18 | 2015-05-20 | $69.27 | $485K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-04-20 | 2015-04-22 | $68.05 | $476K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-03-18 | 2015-03-20 | $62.43 | $437K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-02-18 | 2015-02-20 | $61.88 | $433K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2015-01-20 | 2015-01-22 | $57.34 | $401K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL · 10b5-1 | 2014-12-18 | 2014-12-19 | $56.43 | $677K | -11.2% | -2.2% | -2.2% |
| DXCM | SELL | 2014-11-11 | 2014-11-13 | $52.93 | $1.1M | -11.2% | -2.2% | -2.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.