MPWR · Monolithic Power Systems Inc. Common Stock
View on chartInsiders & Stakes
| Michael Hsing CEO | ▼ Sell | Open Market | 818,264 Shares held | 9/28/2026 | View profile |
| Deming Xiao Pres. of MPS Asia Operations | ▼ Sell | Open Market | 205,959 Shares held | 5/6/2026 | View profile |
| Theodore Blegen CFO | ▼ Sell | Open Market | 82,353 Shares held | 2/6/2026 | View profile |
| Maurice Sciammas Sr. V.P.of Sales and Marketing | ▼ Sell | Gift | 36,062 Shares held | 8/4/2026 | View profile |
| Victor K. Lee | ▼ Sell | Open Market | 27,756 Shares held | 2/9/2026 | View profile |
| Robert W. Dean II Interim CFO | ▼ Sell | Other | 7,089 Shares held | 8/24/2026 | View profile |
| Eugen J. Elmiger | ▼ Sell | Open Market | 5,402 Shares held | 5/6/2026 | View profile |
| Jeff Zhou | ▼ Sell | Open Market | 3,800 Shares held | 5/26/2026 | View profile |
| Saria Tseng EVP & General Counsel | ▼ Sell | Gift | 2,000 Shares held | 8/31/2026 | View profile |
| Martinez Carintia | ▲ Buy | Grant | 1,067 Shares held | 2/3/2026 | View profile |
| Eileen Wynne | ▼ Sell | Open Market | 1,007 Shares held | 5/6/2026 | View profile |
| Kuo Wei Herbert Chang | ▼ Sell | Open Market | 515 Shares held | 8/24/2026 | View profile |
| Moyer James C | ▼ Sell | Gift | 0 Shares held | 8/29/2024 | View profile |
Transaction History
| Michael Hsing | ▼ Sell | Open Market | 596 | $789K | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,121 | $2.8M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,111 | $1.5M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,949 | $3.9M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 5,783 | $7.8M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 6,343 | $8.5M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 10,967 | $14.8M | 9/28/2026 |
| Michael Hsing | ▼ Sell | Open Market | 130 | $176K | 9/28/2026 |
| Saria Tseng | ▼ Sell | Gift | 2,000 | $0 | 8/31/2026 |
| Saria Tseng | ▼ Sell | Gift | 2,000 | $0 | 8/31/2026 |
| Robert W. Dean II | ▼ Sell | Open Market | 32 | $42K | 8/24/2026 |
| Robert W. Dean II | ▼ Sell | Other | 5 | $0 | 8/24/2026 |
| Kuo Wei Herbert Chang | ▼ Sell | Open Market | 50 | $64K | 8/24/2026 |
| Robert W. Dean II | ▼ Sell | Open Market | 6 | $8K | 8/17/2026 |
| Kuo Wei Herbert Chang | ▼ Sell | Open Market | 50 | $71K | 8/11/2026 |
| Robert W. Dean II | ▼ Sell | Open Market | 105 | $141K | 8/5/2026 |
| Maurice Sciammas | ▼ Sell | Gift | 25,000 | $0 | 8/4/2026 |
| Maurice Sciammas | ▼ Sell | Gift | 25,000 | $0 | 8/4/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $40K | 8/3/2026 |
| Robert W. Dean II | ▲ Buy | Grant | 1,359 | $0 | 7/25/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 240 | $329K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 472 | $649K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 418 | $576K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 410 | $567K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 50 | $69K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 213 | $297K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 117 | $164K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 110 | $155K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 527 | $692K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 274 | $361K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 409 | $541K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 464 | $617K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 776 | $1.0M | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 1,460 | $2.0M | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 1,864 | $2.5M | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 1,506 | $2.0M | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 5,640 | $7.6M | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 50 | $68K | 7/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $41K | 7/1/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $46K | 6/1/2026 |
| Maurice Sciammas | ▼ Sell | Gift | 12,472 | $0 | 5/29/2026 |
| Saria Tseng | ▼ Sell | Open Market | 7,565 | $12.9M | 5/27/2026 |
| Robert W. Dean II | ▼ Sell | Open Market | 22 | $36K | 5/26/2026 |
| Jeff Zhou | ▼ Sell | Open Market | 486 | $816K | 5/26/2026 |
| Saria Tseng | ▼ Sell | Gift | 200 | $0 | 5/22/2026 |
| Saria Tseng | ▼ Sell | Open Market | 5,000 | $7.9M | 5/22/2026 |
| Michael Hsing | ▼ Sell | Open Market | 3,424 | $5.0M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 5,819 | $8.5M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 5,049 | $7.4M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 4,082 | $6.0M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 5,737 | $8.5M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 6,688 | $9.9M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 862 | $1.3M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 608 | $912K | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,929 | $4.4M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 3,769 | $5.7M | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 551 | $834K | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 352 | $534K | 5/18/2026 |
| Michael Hsing | ▼ Sell | Open Market | 130 | $198K | 5/18/2026 |
| Robert W. Dean II | ▼ Sell | Open Market | 4 | $6K | 5/18/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 2,020 | $3.2M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 1,312 | $2.1M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 703 | $1.1M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 447 | $707K | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 50 | $79K | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 3,741 | $5.8M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 1,717 | $2.7M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 2,010 | $3.1M | 5/15/2026 |
| Maurice Sciammas | ▼ Sell | Gift | 1,563 | $0 | 5/13/2026 |
| Maurice Sciammas | ▼ Sell | Gift | 1,563 | $0 | 5/13/2026 |
| Robert W. Dean II | ▼ Sell | Other | 2,156 | $0 | 5/13/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 834 | $1.3M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 1,879 | $3.0M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 2,587 | $4.1M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 1,355 | $2.2M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 2,619 | $4.2M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 514 | $822K | 5/6/2026 |
| Deming Xiao | ▼ Sell | Open Market | 3,329 | $5.5M | 5/6/2026 |
| Deming Xiao | ▼ Sell | Open Market | 14,167 | $23.4M | 5/6/2026 |
| Deming Xiao | ▼ Sell | Open Market | 11,597 | $19.2M | 5/6/2026 |
| Jeff Zhou | ▼ Sell | Open Market | 500 | $825K | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 320 | $499K | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 814 | $1.3M | 5/6/2026 |
| Eugen J. Elmiger | ▼ Sell | Open Market | 1,078 | $1.7M | 5/6/2026 |
| Deming Xiao | ▼ Sell | Open Market | 907 | $1.5M | 5/6/2026 |
| Eileen Wynne | ▼ Sell | Open Market | 335 | $530K | 5/6/2026 |
| Jeff Zhou | ▼ Sell | Open Market | 500 | $800K | 5/5/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 380 | $602K | 5/5/2026 |
| Jeff Zhou | ▼ Sell | Open Market | 514 | $809K | 5/5/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $48K | 5/4/2026 |
| Saria Tseng | ▼ Sell | Open Market | 240 | $307K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 120 | $154K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 400 | $517K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 800 | $1.0M | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 1,279 | $1.7M | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 4,244 | $5.6M | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 560 | $709K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 360 | $457K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 840 | $1.1M | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 120 | $159K | 4/8/2026 |
| Saria Tseng | ▼ Sell | Open Market | 244 | $278K | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 556 | $636K | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 480 | $552K | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 560 | $649K | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 684 | $797K | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 2,036 | $2.4M | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 1,680 | $2.0M | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 1,396 | $1.6M | 4/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 576 | $652K | 4/1/2026 |
| Saria Tseng | ▼ Sell | Open Market | 184 | $208K | 4/1/2026 |
| Saria Tseng | ▼ Sell | Open Market | 188 | $214K | 4/1/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $33K | 4/1/2026 |
| Saria Tseng | ▼ Sell | Open Market | 292 | $332K | 4/1/2026 |
| Saria Tseng | ▼ Sell | Open Market | 160 | $181K | 4/1/2026 |
| Saria Tseng | ▼ Sell | Open Market | 9,080 | $9.1M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 3,360 | $3.4M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 2,200 | $2.3M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 80 | $83K | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 5,154 | $5.2M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 3,194 | $3.2M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 2,440 | $2.5M | 3/30/2026 |
| Saria Tseng | ▼ Sell | Open Market | 166 | $172K | 3/30/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 30 | $33K | 3/20/2026 |
| Michael Hsing | ▼ Sell | Open Market | 12,731 | $14.7M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 4,992 | $5.8M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 4,001 | $4.7M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,076 | $2.4M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 200 | $235K | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 480 | $567K | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 160 | $190K | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 600 | $717K | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,440 | $1.7M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 3,640 | $4.4M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,240 | $1.5M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,440 | $1.8M | 2/12/2026 |
| Michael Hsing | ▼ Sell | Open Market | 649 | $780K | 2/11/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 200 | $236K | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 6,079 | $7.3M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 14,578 | $17.5M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,533 | $1.8M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,799 | $3.3M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,542 | $1.8M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 2,104 | $2.5M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 363 | $421K | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,366 | $1.6M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,987 | $2.3M | 2/11/2026 |
| Michael Hsing | ▼ Sell | Open Market | 4,302 | $4.9M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 6,325 | $7.2M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 16,080 | $18.4M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 360 | $418K | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 880 | $1.0M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 280 | $335K | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 3,864 | $4.4M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 1,215 | $1.4M | 2/10/2026 |
| Michael Hsing | ▼ Sell | Open Market | 694 | $802K | 2/10/2026 |
| Victor K. Lee | ▼ Sell | Open Market | 400 | $485K | 2/9/2026 |
| Deming Xiao | ▼ Sell | Open Market | 22,875 | $26.8M | 2/6/2026 |
| Saria Tseng | ▼ Sell | Open Market | 22,875 | $26.8M | 2/6/2026 |
| Maurice Sciammas | ▼ Sell | Open Market | 22,875 | $26.8M | 2/6/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 21,725 | $25.4M | 2/6/2026 |
| Michael Hsing | ▼ Sell | Open Market | 54,923 | $64.3M | 2/6/2026 |
| Eileen Wynne | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Kuo Wei Herbert Chang | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Jeff Zhou | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Eugen J. Elmiger | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Victor K. Lee | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Michael Hsing | ▲ Buy | Grant | 136,825 | $0 | 2/3/2026 |
| Maurice Sciammas | ▲ Buy | Grant | 57,170 | $0 | 2/3/2026 |
| Martinez Carintia | ▲ Buy | Grant | 189 | $0 | 2/3/2026 |
| Deming Xiao | ▲ Buy | Grant | 57,170 | $0 | 2/3/2026 |
| Theodore Blegen | ▲ Buy | Grant | 38,745 | $0 | 2/3/2026 |
| Saria Tseng | ▲ Buy | Grant | 57,170 | $0 | 2/3/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 240 | $271K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 220 | $244K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 40 | $45K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $90K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 40 | $45K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 200 | $225K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $90K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 240 | $271K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 320 | $362K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 198 | $224K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 322 | $365K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 379 | $430K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 241 | $273K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 120 | $136K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 120 | $136K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $91K | 2/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $91K | 2/2/2026 |
| Victor K. Lee | ▼ Sell | Open Market | 600 | $559K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $74K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 194 | $181K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $75K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 74 | $70K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 539 | $509K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 650 | $614K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 40 | $38K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $76K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 40 | $37K | 1/2/2026 |
| Theodore Blegen | ▼ Sell | Open Market | 80 | $75K | 1/2/2026 |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
MPWR Upgraded to Buy Ahead of Earnings
Monolithic Power Systems received an upgrade to Buy, adding to the anticipation surrounding its upcoming earnings report. The stock is currently trading near its 52-week low, which provides context for the recent analyst action. While the company faces a high valuation, the upgrade suggests some analysts see potential value in the current price levels.
MPWR Upgraded to Buy Ahead of Earnings. Monolithic Power Systems received an upgrade to Buy, adding to the anticipation surrounding its upcoming earnings report. The stock is currently trading near its 52-week low, which provides context for the recent analyst action. While the company faces a high valuation, the upgrade suggests some analysts see potential value in the current price levels.