NasdaqGS - Nasdaq Real Time Price
USD
Monolithic Power Systems, Inc. (MPWR)
1,211.63
+12.82
(+1.07%)
At close: October 30 at 4:00:02 PM EDT
1,214.08
+2.45
(+0.20%)
After hours: October 30 at 7:46:41 PM EDT
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Learn moreInsider Purchases Last 6 Months
| Shares | Transactions | |
|---|---|---|
|
Purchases
|
42,594 | 6 |
|
Sales
|
114,669 | 22 |
|
Net Shares Purchased (Sold)
|
-72,075 | 28 |
|
Total Insider Shares Held
|
1.77M | -- |
|
% Net Shares Purchased (Sold)
|
-3.90% | -- |
Net Institutional Purchases Prior Quarter to Latest Quarter
| Shares | |
|---|---|
| Net Shares Purchased (Sold) | -6,927,050 |
| % Change in Institutional Shares Held | -14.03% |
Insider Transactions Reported - Last Two Years
| Insider | Transaction | Type | Value | Date |
|---|---|---|---|---|
| HSING MICHAEL R Chief Executive Officer |
Sale at price 1323.31 - 1356.94 per share. | Direct | 40,349,047 | Sep 28, 2026 |
| TSENG SARIA H General Counsel |
Stock Gift at price 0.00 per share. | Direct | 0 | Aug 31, 2026 |
| CHANG KUO WEI HERBERT Director |
Sale at price 1281.57 per share. | Direct | 64,078 | Aug 24, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Sale at price 1297.72 per share. | Direct | 41,527 | Aug 24, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Sale at price 1413.64 per share. | Direct | 8,482 | Aug 17, 2026 |
| CHANG KUO WEI HERBERT Director |
Sale at price 1420.00 per share. | Direct | 71,000 | Aug 11, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Sale at price 1344.27 per share. | Direct | 141,148 | Aug 5, 2026 |
| SCIAMMAS MAURICE Officer |
Stock Gift at price 0.00 per share. | Direct | 0 | Aug 4, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1343.94 per share. | Indirect | 40,318 | Aug 3, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Jul 24, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1314.03 - 1405.71 per share. | Direct | 20,245,937 | Jul 15, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1351.61 per share. | Indirect | 40,548 | Jul 1, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1533.95 per share. | Indirect | 46,018 | Jun 1, 2026 |
| SCIAMMAS MAURICE Officer |
Stock Gift at price 0.00 per share. | Indirect | 0 | May 29, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1700.00 per share. | Direct | 12,860,500 | May 27, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Sale at price 1649.56 per share. | Direct | 36,290 | May 26, 2026 |
| ZHOU JEFFREY Director |
Sale at price 1680.00 per share. | Direct | 816,480 | May 26, 2026 |
| TSENG SARIA H General Counsel |
Stock Gift at price 0.00 per share. | Direct | 0 | May 22, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1586.43 per share. | Direct | 7,932,150 | May 22, 2026 |
| DEAN ROBERT W II Chief Financial Officer |
Sale at price 1563.28 per share. | Direct | 6,253 | May 18, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1550.36 - 1585.51 per share. | Direct | 18,736,850 | May 15, 2026 |
| SCIAMMAS MAURICE Officer |
Stock Gift at price 0.00 per share. | Indirect | 0 | May 13, 2026 |
| ZHOU JEFFREY Director |
Sale at price 1574.48 - 1650.00 per share. | Direct | 2,434,283 | May 6, 2026 |
| XIAO DEMING Officer |
Sale at price 1648.38 - 1661.38 per share. | Direct | 49,636,560 | May 6, 2026 |
| ELMIGER EUGEN J Director |
Sale at price 1559.88 - 1600.14 per share. | Direct | 19,019,482 | May 6, 2026 |
| WYNNE EILEEN Director |
Sale at price 1582.68 per share. | Direct | 530,198 | May 6, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1583.81 per share. | Indirect | 601,848 | May 5, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1588.73 per share. | Indirect | 47,662 | May 4, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1266.48 - 1321.94 per share. | Direct | 11,698,654 | Apr 8, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1139.96 - 1179.50 per share. | Direct | 8,918,434 | Apr 6, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1131.24 - 1136.99 per share. | Direct | 1,586,924 | Apr 1, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1116.44 per share. | Indirect | 33,493 | Apr 1, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1000.81 - 1041.12 per share. | Direct | 25,943,638 | Mar 30, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1095.07 per share. | Indirect | 32,852 | Mar 20, 2026 |
| HSING MICHAEL R Chief Executive Officer |
Sale at price 1155.71 - 1217.12 per share. | Direct | 38,670,257 | Feb 12, 2026 |
| HSING MICHAEL R Chief Executive Officer |
Sale at price 1158.71 - 1202.28 per share. | Direct | 39,234,212 | Feb 11, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1179.98 per share. | Indirect | 235,995 | Feb 11, 2026 |
| HSING MICHAEL R Chief Executive Officer |
Sale at price 1132.01 - 1197.26 per share. | Direct | 38,837,435 | Feb 10, 2026 |
| LEE VICTOR K Director |
Sale at price 1212.16 per share. | Direct | 484,864 | Feb 9, 2026 |
| BLEGEN THEODORE BERNHARD Chief Financial Officer |
Sale at price 1171.16 per share. | Direct | 25,443,531 | Feb 6, 2026 |
| TSENG SARIA H General Counsel |
Sale at price 1171.16 per share. | Direct | 26,790,370 | Feb 6, 2026 |
| XIAO DEMING Officer |
Sale at price 1171.16 per share. | Direct | 26,790,370 | Feb 6, 2026 |
| HSING MICHAEL R Chief Executive Officer |
Sale at price 1171.16 per share. | Direct | 64,323,824 | Feb 6, 2026 |
| SCIAMMAS MAURICE Officer |
Sale at price 1171.16 per share. | Direct | 26,790,370 | Feb 6, 2026 |
| LEE VICTOR K Director |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
| CHANG KUO WEI HERBERT Director |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
| BLEGEN THEODORE BERNHARD Chief Financial Officer |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
| ZHOU JEFFREY Director |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
| TSENG SARIA H General Counsel |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
| XIAO DEMING Officer |
Stock Award(Grant) at price 0.00 per share. | Direct | 0 | Feb 3, 2026 |
