Steven R. Altman is Chairman at QUALCOMM INC/DE (QCOM). They have made 34 open-market trades across 3 companies since 2006, most recently 2026-05-28.
CIK 0001191307
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.
4 open-market purchases totalling $2.9M since 2013, against 30 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DXCM | SELL · 10b5-1 | 2024-01-16 | 2024-01-17 | $122.87 | $385K | -1.6% | -7.3% | +8.1% |
| DXCM | SELL · 10b5-1 | 2023-12-15 | 2023-12-18 | $122.77 | $246K | +0.4% | +1.5% | +9.0% |
| DXCM | SELL · 10b5-1 | 2023-12-12 | 2023-12-13 | $120.00 | $360K | +0.1% | +1.3% | +9.7% |
| DXCM | SELL | 2023-11-15 | 2023-11-15 | $101.26 | $101K | +10.0% | +20.2% | +14.7% |
| DXCM | SELL · 10b5-1 | 2023-10-16 | 2023-10-17 | $77.58 | $78K | +9.6% | +28.6% | +52.7% |
| DXCM | SELL | 2023-09-15 | 2023-09-19 | $101.50 | $102K | -2.2% | -9.8% | +29.3% |
| DXCM | SELL | 2020-09-15 | 2020-09-16 | $393.92 | $11.8M | +4.6% | +5.8% | -7.4% |
| DXCM | SELL | 2020-08-10 | 2020-08-12 | $435.14 | $1.5M | -2.3% | -11.4% | -21.6% |
| DXCM | SELL | 2020-07-10 | 2020-07-14 | $437.36 | $1.7M | +1.6% | +4.9% | -5.0% |
| DXCM | SELL | 2020-06-10 | 2020-06-12 | $385.61 | $1.4M | +8.6% | +11.4% | +7.4% |
| DXCM | SELL | 2020-01-02 | 2020-01-06 | $218.33 | $1.1M | +4.2% | +6.0% | +19.7% |
| DXCM | SELL | 2019-10-01 | 2019-10-03 | $149.03 | $626K | -2.7% | +0.9% | +39.6% |
| DXCM | SELL | 2019-07-01 | 2019-07-02 | $151.62 | $379K | +3.5% | +1.6% | +2.2% |
| DXCM | SELL | 2019-04-01 | 2019-04-02 | $119.60 | $299K | +0.0% | +2.1% | +28.5% |
| DXCM | SELL | 2019-01-02 | 2019-01-04 | $117.04 | $293K | +17.1% | +15.1% | -6.7% |
| DXCM | SELL | 2018-10-01 | 2018-10-03 | $135.93 | $428K | +0.1% | +6.1% | -7.8% |
| DXCM | SELL | 2018-08-24 | 2018-08-28 | $136.47 | $682K | +2.7% | +1.9% | -10.8% |
| DXCM | BUY | 2017-11-07 | 2017-11-09 | $50.01 | $1.3M | +8.2% | +14.8% | +7.7% |
| DXCM | BUY | 2017-11-06 | 2017-11-08 | $49.61 | $496K | +10.2% | +24.0% | +12.1% |
| DXCM | SELL | 2016-08-19 | 2016-08-23 | $90.91 | $318K | +0.4% | +2.5% | -20.2% |
| DXCM | SELL | 2015-08-18 | 2015-08-19 | $96.69 | $483K | -11.2% | -2.2% | -2.2% |
| UBNT | BUY | 2013-12-06 | 2013-12-09 | $36.85 | $737K | -11.9% | -3.0% | -3.0% |
| QCOM | SELL · 10b5-1 | 2013-11-29 | 2013-12-03 | $73.66 | $3.7M | -6.7% | +1.4% | +1.4% |
| QCOM | SELL · 10b5-1 | 2013-11-12 | 2013-11-13 | $69.10 | $3.6M | -6.7% | +1.4% | +1.4% |
| UBNT | BUY | 2013-11-11 | 2013-11-13 | $40.32 | $403K | -11.9% | -3.0% | -3.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.