David Mh Matthews is VP at POWER INTEGRATIONS INC (POWI). They have made 92 open-market trades across 1 company since 2013, most recently 2024-05-28.
CIK 0001583135
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 92 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| POWI | 53,729 | $2.4M |
Shares reported on the most recent Form 4, priced at the 2024-05-28 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| POWI | SELL | 2024-05-28 | 2024-05-28 | $77.17 | $733K | -1.3% | -8.4% | -12.1% |
| POWI | SELL | 2024-05-20 | 2024-05-21 | $76.88 | $384K | -2.0% | -7.5% | -15.2% |
| POWI | SELL | 2024-04-02 | 2024-04-03 | $69.04 | $159K | -4.7% | -2.7% | +0.1% |
| POWI | SELL | 2024-02-12 | 2024-02-14 | $78.87 | $178K | -7.0% | -7.4% | +2.2% |
| POWI | SELL | 2024-02-06 | 2024-02-08 | $73.96 | $162K | -14.4% | -12.4% | -9.7% |
| POWI | SELL | 2024-02-02 | 2024-02-06 | $75.47 | $170K | -0.9% | +3.3% | -5.9% |
| POWI | SELL | 2024-02-02 | 2024-02-27 | $74.49 | $114K | +6.7% | +3.2% | +11.6% |
| POWI | SELL | 2023-11-22 | 2023-11-27 | $77.69 | $1.1M | +4.4% | +11.5% | -5.1% |
| POWI | SELL | 2023-11-14 | 2023-11-16 | $76.14 | $834K | +0.9% | +11.3% | -2.0% |
| POWI | SELL | 2023-08-30 | 2023-08-30 | $84.28 | $1.0M | -7.3% | -8.5% | -9.4% |
| POWI | SELL | 2023-08-22 | 2023-08-23 | $82.62 | $1.4M | +0.4% | -8.7% | -8.7% |
| POWI | SELL | 2023-05-30 | 2023-05-30 | $88.55 | $784K | +6.3% | +7.3% | -6.1% |
| POWI | SELL | 2023-05-22 | 2023-05-23 | $86.61 | $520K | +3.9% | +6.5% | -1.9% |
| POWI | SELL | 2023-04-04 | 2023-04-05 | $81.46 | $253K | +0.1% | +1.7% | +17.7% |
| POWI | SELL | 2023-02-27 | 2023-03-01 | $82.47 | $984K | -2.4% | +2.5% | +7.0% |
| POWI | SELL | 2023-02-14 | 2023-02-15 | $83.97 | $317K | +0.1% | +2.4% | -3.4% |
| POWI | SELL | 2023-02-08 | 2023-02-09 | $84.96 | $82K | -0.2% | -1.3% | -0.8% |
| POWI | SELL | 2023-02-07 | 2023-02-08 | $83.18 | $186K | -3.4% | -3.4% | -6.7% |
| POWI | SELL | 2023-02-02 | 2023-02-06 | $90.43 | $260K | -1.9% | -0.8% | -5.6% |
| POWI | SELL | 2022-11-29 | 2022-12-01 | $76.64 | $383K | -0.2% | -8.1% | +7.4% |
| POWI | SELL | 2022-11-11 | 2022-11-15 | $78.29 | $931K | -3.9% | -8.2% | +6.2% |
| POWI | SELL | 2022-05-31 | 2022-06-02 | $83.84 | $1.0M | -9.8% | -17.1% | -15.4% |
| POWI | SELL | 2022-05-17 | 2022-05-19 | $85.29 | $680K | -0.7% | -10.9% | -5.3% |
| POWI | SELL | 2022-04-04 | 2022-04-05 | $91.23 | $274K | -0.7% | -0.4% | -16.0% |
| POWI | SELL | 2022-02-28 | 2022-02-28 | $89.79 | $449K | -2.3% | +5.3% | -6.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.