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MPWR - As of  04/30/25, 10:14:39 AM:   116 Insider Transactions.

Sector: Technology    Industry: Semiconductor - Specialized
Prev Close:$69.81  Avg Vol(3m): 280,398  P/E: 72.70  EPS: 0.96

Email this page to a friend.    Insider Transactions for MPWR

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-02-12 08:09:02.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 8.83% view
S 2020-02-05 13:33:34.0 MONOLITHIC POWER SYSTEMS INC MPWR FRANKLIN RESOURCES INC 4.9% view
B 2020-02-04 12:16:14.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 10.6% view
B 2019-06-07 16:59:00.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 10.2% view
S 2019-02-13 11:58:22.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 3.378% view
B 2019-02-11 13:34:54.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 8.63% view
S 2019-02-06 15:03:14.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 9.8% view
B 2019-01-28 14:44:49.0 MONOLITHIC POWER SYSTEMS INC MPWR FRANKLIN RESOURCES INC 5.3% view
B 2018-02-09 14:19:38.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 8.13% view
S 2018-01-19 13:55:18.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 10.1% view
S 2017-02-14 11:39:23.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 8.398% view
B 2017-02-10 09:59:06.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 7.07% view
B 2017-02-08 15:42:29.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 10.3% view
B 2017-01-25 14:46:00.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 9.8% view
S 2016-11-02 18:21:07.0 MONOLITHIC POWER SYSTEMS INC MPWR RS INVESTMENT MANAGEMENT CO LLC 0.0% view
S 2016-02-16 10:43:57.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 1.13% view
B 2016-02-11 20:02:33.0 MONOLITHIC POWER SYSTEMS INC MPWR RS INVESTMENT MANAGEMENT CO LLC 5.35% view
B 2016-01-26 16:40:26.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 9.0% view
S 2015-02-17 16:35:39.0 MONOLITHIC POWER SYSTEMS INC MPWR CITADEL ADVISORS LLC 2.8% view
S 2015-02-17 15:32:04.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 5.15% view
S 2015-02-13 10:27:42.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 10.018% view
B 2015-02-11 10:15:42.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 6.38% view
B 2015-01-23 15:15:26.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 8.2% view
S 2014-11-10 11:04:43.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 4.8% view
B 2014-10-10 14:13:31.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 5.1% view
S 2014-07-10 16:45:47.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 5.0% view
S 2014-05-02 14:48:30.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 5.42% view
B 2014-02-14 16:12:20.0 MONOLITHIC POWER SYSTEMS INC MPWR CITADEL ADVISORS LLC 5.1% view
B 2014-02-14 10:41:42.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 5.5% view
S 2014-02-14 06:54:30.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 10.837% view
B 2014-02-11 13:53:12.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 5.77% view
S 2014-02-03 11:41:33.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LLC n/a view
B 2014-01-29 21:44:41.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 8.0% view
B 2013-12-27 09:25:02.0 MONOLITHIC POWER SYSTEMS INC MPWR CITADEL ADVISORS LLC 5.0% view
B 2013-04-08 14:28:33.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 5.6% view
S 2013-02-14 14:07:29.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 14.997% view
S 2013-02-14 13:13:35.0 MONOLITHIC POWER SYSTEMS INC MPWR FRONTIER CAPITAL MANAGEMENT CO LLC 5.857% view
B 2013-02-13 18:39:12.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LLC 6.4% view
B 2013-02-12 13:02:53.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 5.56% view
S 2013-02-07 15:49:49.0 MONOLITHIC POWER SYSTEMS INC MPWR MASSACHUSETTS FINANCIAL SERVICES CO 4.3% view
S 2013-02-05 10:06:56.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 6.47% view
S 2013-02-04 15:42:25.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 0.84% view
S 2013-01-31 16:09:45.0 MONOLITHIC POWER SYSTEMS INC MPWR JANUS CAPITAL MANAGEMENT LLC 0.0% view
B 2012-09-10 14:05:35.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 15.0% view
S 2012-08-07 11:45:43.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 5.66% view
B 2012-02-14 16:48:38.0 MONOLITHIC POWER SYSTEMS INC MPWR FRONTIER CAPITAL MANAGEMENT CO LLC 9.303% view
B 2012-02-14 15:58:44.0 MONOLITHIC POWER SYSTEMS INC MPWR JANUS CAPITAL MANAGEMENT LLC 6.0% view
S 2012-02-13 12:22:30.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 6.77% view
B 2012-02-10 17:28:26.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LLC 6.2% view
B 2012-02-10 07:42:42.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 5.27% view
B 2012-01-31 10:08:19.0 MONOLITHIC POWER SYSTEMS INC MPWR MASSACHUSETTS FINANCIAL SERVICES CO 5.4% view
B 2012-01-30 13:04:06.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 11.12% view
S 2011-05-10 15:37:20.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 3.77% view
B 2011-05-10 12:41:55.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 11.02% view
B 2011-02-14 18:53:33.0 MONOLITHIC POWER SYSTEMS INC MPWR FRONTIER CAPITAL MANAGEMENT CO LLC 9.008% view
S 2011-02-10 14:57:56.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LLC n/a view
B 2011-02-07 20:30:59.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 7.38% view
B 2011-02-07 13:56:19.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 7.14% view
S 2011-01-20 09:54:06.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 5.73% view
S 2010-12-10 16:11:32.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 4.466% view
B 2010-06-10 18:17:55.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 10.36% view
S 2010-04-12 10:39:03.0 MONOLITHIC POWER SYSTEMS INC MPWR ALGER FRED MANAGEMENT INC 4.87% view
B 2010-02-16 12:54:03.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 11.376% view
S 2010-02-16 11:02:44.0 MONOLITHIC POWER SYSTEMS INC MPWR KINGDOM RIDGE CAPITAL MASTER FUND 0.29% view
B 2010-02-16 09:25:43.0 MONOLITHIC POWER SYSTEMS INC MPWR ALGER FRED MANAGEMENT INC 6.66% view
B 2010-02-01 16:36:50.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LP 5.5% view
S 2010-01-21 13:01:56.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 5.69% view
B 2009-11-10 15:41:20.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 11.181% view
B 2009-03-09 17:28:12.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 12.0% view
B 2009-02-17 13:50:31.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 12.0% view
S 2009-02-13 07:17:44.0 MONOLITHIC POWER SYSTEMS INC MPWR AXA FINANCIAL INC 0.2% view
B 2009-02-11 10:39:56.0 MONOLITHIC POWER SYSTEMS INC MPWR TimesSquare Capital Management 5.9% view
S 2009-02-06 06:20:27.0 MONOLITHIC POWER SYSTEMS INC MPWR TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD n/a view
S 2009-01-26 13:17:24.0 MONOLITHIC POWER SYSTEMS INC MPWR Moyer James C 4.45% view
S 2009-01-26 13:16:08.0 MONOLITHIC POWER SYSTEMS INC MPWR CHANG KUO WEI HERBERT 1.63% view
B 2008-12-15 17:16:55.0 MONOLITHIC POWER SYSTEMS INC MPWR KINGDOM RIDGE CAPITAL MASTER FUND 5.29% view
B 2008-11-10 20:18:40.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 10.34% view
B 2008-06-06 06:03:53.0 MONOLITHIC POWER SYSTEMS INC MPWR TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD 5.6% view
B 2008-04-09 14:42:11.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 10.68% view
S 2008-02-14 15:35:43.0 MONOLITHIC POWER SYSTEMS INC MPWR Moyer James C 5.16% view
S 2008-02-14 15:35:42.0 MONOLITHIC POWER SYSTEMS INC MPWR CHANG KUO WEI HERBERT 4.0% view
S 2008-02-14 15:35:42.0 MONOLITHIC POWER SYSTEMS INC MPWR Hsing Michael 4.84% view
B 2008-02-14 07:25:48.0 MONOLITHIC POWER SYSTEMS INC MPWR AXA FINANCIAL INC 5.5% view
B 2008-02-13 19:26:51.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 5.4% view
S 2008-02-13 19:06:34.0 MONOLITHIC POWER SYSTEMS INC MPWR LAFFONT PHILIPPE 2.8% view
S 2008-01-25 19:15:19.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 6.8% view
S 2007-12-13 10:40:06.0 MONOLITHIC POWER SYSTEMS INC MPWR BANK OF AMERICA CORP 5.0% view
S 2007-10-10 16:23:31.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 4.9% view
B 2007-02-14 15:13:29.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 14.16% view
S 2007-02-13 14:32:36.0 MONOLITHIC POWER SYSTEMS INC MPWR BAVP 7.05% view
B 2007-02-13 13:15:34.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 12.17% view
B 2007-02-12 12:00:19.0 MONOLITHIC POWER SYSTEMS INC MPWR LAFFONT PHILIPPE 7.25% view
S 2007-02-07 17:01:23.0 MONOLITHIC POWER SYSTEMS INC MPWR Moyer James C 6.08% view
S 2007-02-07 16:59:47.0 MONOLITHIC POWER SYSTEMS INC MPWR Hsing Michael 6.98% view
B 2007-01-18 15:59:51.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN TECH SPECTRUM 5.23% view
B 2006-11-09 15:53:09.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 11.3% view
B 2006-09-01 17:16:20.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 10.09% view
S 2006-08-10 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 FMR CORP n/a view
S 2006-05-10 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 7.08% view
S 2006-04-19 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 BANK OF AMERICA CORP 7.51% view
B 2006-03-06 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 10.6% view
B 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 FMR CORP n/a view
S 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 Moyer James C 6.8% view
B 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 Hsing Michael 7.32% view
S 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 CHANG KUO WEI HERBERT 14.41% view
B 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 LAFFONT PHILIPPE 6.81% view
B 2006-02-13 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 9.18% view
B 2006-02-08 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 BANK OF AMERICA CORP 8.14% view
S 2005-12-13 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 8.65% view
B 2005-08-12 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 11.34% view
B 2005-08-04 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 LAFFONT PHILIPPE 5.45% view
B 2005-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 CHWANG RONALD 6.9% view
B 2005-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 CHANG KUO WEI HERBERT 15.1% view
B 2005-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 Moyer James C 6.9% view
B 2005-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 Hsing Michael 7.0% view
B 2005-02-11 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 BAVP 8.61% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.