James C. Moyer is Director at MONOLITHIC POWER SYSTEMS INC (MPWR). They have made 78 open-market trades across 1 company since 2006, most recently 2024-08-29.
CIK 0001308656
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 78 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MPWR | 11,731 | $14.2M |
Shares reported on the most recent Form 4, priced at the 2024-08-12 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MPWR | SELL | 2023-11-16 | 2023-11-20 | $538.94 | $4.1M | +2.7% | +12.1% | +30.7% |
| MPWR | SELL | 2022-12-12 | 2022-12-12 | $386.63 | $28.9M | -15.8% | -3.8% | +17.8% |
| MPWR | SELL | 2022-09-22 | 2022-09-26 | $385.58 | $7.4M | +3.7% | -12.6% | -10.2% |
| MPWR | SELL | 2021-11-12 | 2021-11-18 | $555.31 | $1.1M | -0.9% | -14.8% | -13.0% |
| MPWR | SELL | 2021-08-06 | 2021-08-10 | $460.75 | $5.5M | +3.6% | +6.3% | +19.3% |
| MPWR | SELL | 2021-07-16 | 2021-07-16 | $381.41 | $9.2M | +15.2% | +22.5% | +28.3% |
| MPWR | SELL | 2021-06-11 | 2021-06-15 | $343.41 | $8.7M | +5.9% | +9.9% | +41.7% |
| MPWR | SELL | 2021-02-09 | 2021-02-11 | $374.27 | $11.1M | +0.9% | -11.1% | -20.4% |
| MPWR | SELL | 2020-12-08 | 2020-12-10 | $320.70 | $9.6M | +15.6% | +28.1% | +5.6% |
| MPWR | SELL | 2020-11-13 | 2020-11-17 | $307.70 | $308K | +5.7% | +12.8% | +28.2% |
| MPWR | SELL | 2020-11-10 | 2020-11-12 | $308.38 | $4.6M | -3.2% | +1.4% | +18.7% |
| MPWR | SELL | 2020-09-08 | 2020-09-10 | $248.03 | $3.7M | +7.0% | +30.4% | +27.3% |
| MPWR | SELL | 2020-08-26 | 2020-08-27 | $268.83 | $2.7M | -6.6% | +4.1% | +16.0% |
| MPWR | SELL | 2020-05-14 | 2020-05-18 | $195.34 | $2.0M | +2.7% | +10.3% | +37.7% |
| MPWR | SELL | 2020-05-11 | 2020-05-13 | $210.43 | $2.9M | +3.4% | +8.0% | +36.4% |
| MPWR | SELL | 2020-04-13 | 2020-04-15 | $170.74 | $2.4M | +7.4% | +6.9% | +38.2% |
| MPWR | SELL | 2020-03-09 | 2020-03-11 | $152.66 | $2.9M | -3.8% | +18.3% | +55.9% |
| MPWR | SELL | 2020-02-20 | 2020-02-24 | $184.38 | $1.8M | +2.6% | -5.7% | +22.0% |
| MPWR | SELL | 2020-01-13 | 2020-01-15 | $179.11 | $6.8M | +0.4% | +6.5% | +2.4% |
| MPWR | SELL | 2019-12-02 | 2019-12-03 | $158.58 | $6.0M | +9.8% | +13.2% | +3.2% |
| MPWR | SELL | 2019-11-13 | 2019-11-15 | $160.31 | $1.6M | +0.9% | +9.6% | +18.4% |
| MPWR | SELL | 2019-10-07 | 2019-10-09 | $150.72 | $2.9M | +8.6% | +23.3% | +31.9% |
| MPWR | SELL | 2019-09-19 | 2019-09-23 | $158.02 | $3.2M | -4.6% | -5.2% | +12.6% |
| MPWR | SELL | 2019-08-15 | 2019-08-19 | $145.52 | $1.5M | -1.5% | +3.6% | +5.5% |
| MPWR | SELL | 2019-07-15 | 2019-07-16 | $143.53 | $2.9M | +5.1% | +1.0% | -0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.