Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2024-08-15 Sale | 2024-08-15 4:10 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 200 | $893.44 | $178,688 | 541 (Direct) | View |
| 2024-05-20 Sale | 2024-05-22 6:09 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 200 | $750 | $150,000 | 741 (Direct) | View |
| 2024-05-15 Sale | 2024-05-15 6:52 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 200 | $735 | $147,000 | 941 (Direct) | View |
| 2024-02-29 Sale | 2024-02-29 6:10 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 250 | $706.34 | $176,585 | 1,141 (Direct) | View |
| 2024-02-22 Sale | 2024-02-23 11:25 am | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 250 | $750 | $187,500 | 1,391 (Direct) | View |
| 2023-11-14 Sale | 2023-11-15 5:40 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 400 | $523.64 | $209,456 | 1,293 (Direct) | View |
| 2023-11-13 Sale | 2023-11-13 5:37 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 100 | $510 | $51,000 | 1,693 (Direct) | View |
| 2023-08-29 Sale | 2023-08-29 4:24 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 500 | $500 | $250,000 | 1,793 (Direct) | View |
| 2021-02-26 Sale | 2021-02-26 5:55 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 300 | $370 | $111,000 | 1,281 (Direct) | View |
| 2020-11-04 Sale | 2020-11-05 4:02 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 3,000 | $326.33 | $978,999 | 1,048 (Direct) | View |
| 2020-08-28 Sale | 2020-09-01 4:46 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,300 | $268 | $348,400 | 4,048 (Direct) | View |
| 2020-08-12 Sale | 2020-08-14 5:21 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 400 | $279.5 | $111,800 | 5,348 (Direct) | View |
| 2020-08-06 Sale | 2020-08-10 6:27 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 700 | $280.43 | $196,300 | 5,748 (Direct) | View |
| 2020-08-03 Sale | 2020-08-05 5:53 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,276 | $274 | $349,620 | 6,448 (Direct) | View |
| 2020-05-08 Sale | 2020-05-12 5:23 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 3,026 | $210.64 | $637,408 | 7,724 (Direct) | View |
| 2020-05-05 Sale | 2020-05-07 4:22 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,000 | $198 | $198,000 | 10,750 (Direct) | View |
| 2020-02-13 Sale | 2020-02-14 5:17 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,000 | $192 | $192,000 | 11,750 (Direct) | View |
| 2020-02-11 Sale | 2020-02-12 5:21 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,000 | $187.72 | $187,717 | 11,702 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-02-06 Option Award | 2024-02-08 11:29 am | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 348 | $0 | 1,641 (Direct) | View |
| 2023-02-07 Option Award | 2023-02-08 7:52 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 470 | $0 | 2,293 (Direct) | View |
| 2022-02-08 Option Award | 2022-02-09 6:59 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 542 | $0 | 2,356 (Direct) | View |
| 2021-02-02 Option Award | 2021-02-04 7:51 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 533 | $0 | 1,581 (Direct) | View |
| 2020-02-12 Option Award | 2020-02-14 5:17 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 1,048 | $0 | 11,750 (Direct) | View |