Terrance H. Gregg is Chairman at DEXCOM INC (DXCM). They have made 70 open-market trades across 1 company since 2008, most recently 2018-07-16.
CIK 0001093557
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.
11 open-market purchases totalling $1.1M since 2008, against 59 sales. Across 11 scored buys the stock is down 2.2% at ninety days, and 2.5 points behind the S&P over the same stretch.
11 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| DXCM | 50,882 | $4.5M |
Shares reported on the most recent Form 4, priced at the 2018-07-18 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 0% |
| Avg Move | -11.2% | -2.2% | -2.2% |
| Alpha | -5.3% | -2.5% | -2.5% |
| Scored | 11 | 11 | 11 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 100% | 100% |
| Avg Move | -11.2% | -2.2% | -2.2% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DXCM | SELL | 2018-07-16 | 2018-07-18 | $99.55 | $996K | -9.8% | +26.5% | +28.6% |
| DXCM | SELL | 2018-06-15 | 2018-06-19 | $97.81 | $978K | -6.2% | +1.3% | +36.2% |
| DXCM | SELL | 2018-05-15 | 2018-05-17 | $85.90 | $859K | +0.9% | +16.4% | +43.0% |
| DXCM | SELL | 2018-04-16 | 2018-04-18 | $73.04 | $1.5M | -0.2% | +18.2% | +38.8% |
| DXCM | SELL | 2018-03-15 | 2018-03-19 | $65.51 | $655K | +13.6% | +12.6% | +54.5% |
| DXCM | SELL | 2018-02-15 | 2018-02-20 | $55.91 | $559K | -4.3% | +16.4% | +51.6% |
| DXCM | SELL | 2018-01-16 | 2018-01-18 | $56.86 | $569K | +5.6% | +1.6% | +30.8% |
| DXCM | SELL | 2017-04-20 | 2017-04-24 | $74.10 | $1.1M | +0.5% | -9.0% | -7.0% |
| DXCM | SELL | 2016-09-07 | 2016-09-09 | $95.29 | $2.0M | +1.5% | -8.9% | -29.9% |
| DXCM | SELL | 2016-08-30 | 2016-09-01 | $92.14 | $921K | -0.2% | -7.6% | -29.0% |
| DXCM | SELL | 2016-08-24 | 2016-08-26 | $92.72 | $927K | +4.6% | +1.7% | -20.5% |
| DXCM | SELL | 2016-08-22 | 2016-08-24 | $90.81 | $1.8M | +4.1% | +3.7% | -22.4% |
| DXCM | SELL | 2016-08-18 | 2016-08-22 | $90.70 | $3.6M | +1.5% | +3.5% | -19.0% |
| DXCM | SELL | 2016-08-15 | 2016-08-17 | $91.01 | $2.7M | +1.6% | +3.1% | -20.7% |
| DXCM | SELL | 2016-08-11 | 2016-08-15 | $91.03 | $992K | -0.4% | +0.9% | -24.4% |
| DXCM | SELL | 2016-08-09 | 2016-08-11 | $91.09 | $3.4M | +1.2% | +2.2% | -31.9% |
| DXCM | SELL | 2016-08-05 | 2016-08-09 | $91.29 | $1.8M | +0.8% | +6.1% | -30.2% |
| DXCM | SELL | 2016-05-16 | 2016-05-17 | $62.72 | $1.3M | +5.6% | +17.3% | +47.1% |
| DXCM | SELL | 2016-05-11 | 2016-08-09 | $83.98 | $4.6M | +0.8% | +6.1% | -30.2% |
| DXCM | SELL | 2016-05-11 | 2016-08-09 | $64.50 | $968K | +0.8% | +6.1% | -30.2% |
| DXCM | SELL | 2016-05-11 | 2016-05-13 | $64.32 | $1.1M | +7.2% | +18.2% | +49.1% |
| DXCM | SELL | 2016-05-09 | 2016-05-10 | $62.23 | $892K | +1.5% | +15.6% | +44.2% |
| DXCM | SELL | 2016-04-11 | 2016-04-12 | $68.00 | $147K | +4.5% | -6.7% | +21.2% |
| DXCM | SELL | 2016-03-22 | 2016-03-24 | $59.51 | $1.5M | +15.0% | +15.7% | +29.7% |
| DXCM | SELL · 10b5-1 | 2015-12-15 | 2015-12-17 | $83.26 | $1.2M | -11.2% | -9.8% | -25.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| Scored | 5 | 5 | 5 |