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 |
| 2025-09-02 Sale | 2025-09-03 6:39 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 3,000 | $814.34 | $2,443,032 | 51,601 (Indirect Direct) | View |
| 2025-08-29 Sale | 2025-09-02 4:04 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Elmiger Eugen J Director | 4,000 | $846.71 | $3,386,841 | 17,213 (Direct) | View |
| 2025-08-27 Sale | 2025-08-28 2:23 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Zhou Jeff Director | 193 | $870 | $167,910 | 5,611 (Direct) | View |
| 2025-08-15 Sale | 2025-08-18 5:36 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael CEO | 20,231 | $829.1 | $16,773,550 | 960,532 (Indirect Direct) | View |
| 2025-08-13 Sale | 2025-08-15 2:54 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Zhou Jeff Director | 400 | $850 | $340,000 | 5,804 (Direct) | View |
| 2025-08-12 Sale | 2025-08-13 5:47 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Zhou Jeff Director | 200 | $830 | $166,000 | 6,204 (Direct) | View |
| 2025-08-01 Sale | 2025-08-04 7:58 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 39,999 | $780 | $31,199,220 | 145,451 (Indirect Direct) | View |
| 2025-08-01 Sale | 2025-08-04 7:31 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 3,000 | $750 | $2,250,000 | 54,601 (Indirect Direct) | View |
| 2025-07-01 Sale | 2025-07-02 11:46 am | MONOLITHIC POWER SYSTEMS INC | MPWR | BLEGEN THEODORE EVP and CFO | 6,000 | $750 | $4,500,000 | 57,601 (Indirect Direct) | View |
| 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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-08-19 Gift | 2025-08-21 5:09 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 2,499 | $0 | 185,327 (Indirect) | View |
| 2025-08-11 Gift | 2025-08-12 5:45 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming EVP, Global Operations | 945 | $0 | 145,451 (Indirect) | View |
| 2025-08-06 Gift | 2025-08-08 12:40 pm | N/A N/A | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice EVP, WW Sales & Marketing | 8,254 | $0 | 131,417 (Indirect) | View |
| 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 |