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 |
| 2025-05-13 Sale | 2025-05-13 6:09 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 50 | $738 | $36,900 | 626 (Direct) | View |
| 2025-05-12 Sale | 2025-05-12 8:24 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 100 | $698 | $69,800 | 676 (Direct) | View |
| 2025-05-12 Sale | 2025-05-12 6:02 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 12,000 | $701 | $8,412,000 | 199,555 (Indirect Direct) | View |
| 2025-05-08 Sale | 2025-05-09 6:53 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 100 | $650 | $65,000 | 776 (Direct) | View |
| 2025-02-18 Sale | 2025-02-20 7:01 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 5,200 | $700 | $3,640,000 | 980,763 (Indirect Direct) | View |
| 2025-02-10 Sale | 2025-02-12 3:45 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 662 | $717.1 | $474,721 | 185,423 (Indirect Direct) | View |
| 2025-02-10 Sale | 2025-02-12 3:45 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Tseng Saria EVP & General Counsel | 663 | $717.1 | $475,438 | 158,977 (Direct) | View |
| 2025-02-10 Sale | 2025-02-12 3:44 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 662 | $717.1 | $474,721 | 260,621 (Indirect Direct) | View |
| 2025-02-10 Sale | 2025-02-12 3:44 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 2,594 | $717.1 | $1,860,157 | 985,936 (Indirect Direct) | View |
| 2025-02-10 Sale | 2025-02-12 3:43 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 532 | $717.1 | $381,498 | 63,574 (Indirect Direct) | View |
| 2025-02-07 Sale | 2025-02-11 5:33 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 11,964 | $700 | $8,374,800 | 988,530 (Indirect Direct) | View |
| 2025-02-07 Sale | 2025-02-11 5:33 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 7,000 | $701.98 | $4,913,852 | 261,283 (Indirect Direct) | View |
| 2025-01-24 Sale | 2025-01-28 5:52 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 3,636 | $700 | $2,545,200 | 1,000,494 (Indirect Direct) | View |
| 2024-12-09 Sale | 2024-12-11 7:21 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 2,500 | $600 | $1,500,000 | 64,106 (Indirect Direct) | View |
| 2024-11-08 Sale | 2024-11-13 5:16 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 866 | $765.14 | $662,611 | 186,085 (Indirect Direct) | View |
| 2024-11-08 Sale | 2024-11-13 5:15 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Tseng Saria EVP & General Counsel | 866 | $765.14 | $662,611 | 159,640 (Direct) | View |
| 2024-11-08 Sale | 2024-11-13 5:14 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 866 | $765.14 | $662,611 | 219,193 (Indirect Direct) | View |
| 2024-11-08 Sale | 2024-11-13 5:13 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 734 | $765.15 | $561,620 | 66,606 (Indirect Direct) | View |
| 2024-11-08 Sale | 2024-11-13 5:12 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 2,812 | $765.15 | $2,151,602 | 1,004,130 (Indirect Direct) | View |
| 2024-11-01 Sale | 2024-11-05 5:31 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 2,500 | $772.96 | $1,932,405 | 67,340 (Indirect Direct) | View |
| 2024-10-07 Sale | 2024-10-08 1:14 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 11,000 | $929.59 | $10,225,485 | 220,059 (Indirect Direct) | View |
| 2024-10-01 Sale | 2024-10-02 11:08 am | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 2,500 | $908.36 | $2,270,900 | 69,840 (Indirect Direct) | View |
| 2024-09-03 Sale | 2024-09-03 7:40 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 2,500 | $904.2 | $2,260,506 | 72,340 (Indirect Direct) | View |
| 2024-08-27 Sale | 2024-08-29 5:05 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 9,259 | $950 | $8,796,050 | 186,951 (Indirect Direct) | View |
| 2024-08-22 Sale | 2024-08-22 7:48 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 10,000 | $950 | $9,500,000 | 196,210 (Indirect Direct) | View |
| 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 |
| 2024-08-09 Sale | 2024-08-13 11:07 am | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 4,263 | $827.18 | $3,526,277 | 1,006,934 (Indirect 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 |
| 2025-05-28 Gift | 2025-05-30 4:32 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 1,499 | $0 | 183,828 (Indirect) | View |
| 2025-05-09 Gift | 2025-05-09 7:55 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 1,878 | $0 | 194,329 (Indirect) | View |
| 2025-02-18 Gift | 2025-02-20 7:02 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 1,102 | $0 | 192,451 (Indirect) | View |
| 2025-02-11 Gift | 2025-02-13 6:00 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 7,575 | $0 | 189,733 (Indirect) | View |
| 2025-02-04 Option Award | 2025-02-06 3:58 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Lee Victor K Director | 335 | $0 | 29,567 (Direct) | View |
| 2025-02-04 Option Award | 2025-02-06 3:58 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Elmiger Eugen J Director | 335 | $0 | 21,213 (Direct) | View |
| 2025-02-04 Option Award | 2025-02-06 3:57 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT Director | 335 | $0 | 876 (Direct) | View |
| 2025-02-04 Option Award | 2025-02-06 3:57 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Martinez Carintia Director | 335 | $0 | 2,278 (Direct) | View |
| 2025-02-04 Option Award | 2025-02-06 3:57 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Zhou Jeff Director | 335 | $0 | 6,404 (Direct) | View |
| 2025-02-04 Option Award | 2025-02-06 3:56 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Wynne Eileen Director | 335 | $0 | 1,153 (Direct) | View |
| 2024-08-29 Gift | 2024-08-29 5:38 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C Director | 11,731 | $0 | 16,182 (Indirect) | View |
| 2024-08-22 Gift | 2024-08-22 7:48 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 8,968 | $0 | 196,210 (Direct) | View |
| 2024-08-19 Gift | 2024-08-21 4:28 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 30,291 | $0 | 206,210 (Direct) | View |
| 2024-08-08 Gift | 2024-08-12 6:09 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C Director | 22,000 | $0 | 27,913 (Indirect) | View |