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MPWR - As of  05/17/24, 11:38:32 AM:   56 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 FRANKLIN RESOURCES INC 10.6% view
S 2019-06-07 16:59:00.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 3.378% view
S 2019-02-11 13:34:54.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 9.8% view
S 2019-01-28 14:44:49.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 10.1% view
B 2017-02-14 11:39:23.0 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 9.8% view
S 2016-11-02 18:21:07.0 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 BlackRock Inc 9.0% view
S 2015-02-17 16:35:39.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 5.15% view
B 2015-02-13 10:27:42.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 6.38% view
S 2015-01-23 15:15:26.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 4.8% view
S 2014-10-10 14:13:31.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 5.0% view
B 2014-05-02 14:48:30.0 MONOLITHIC POWER SYSTEMS INC MPWR CITADEL ADVISORS LLC 5.1% view
S 2014-02-14 10:41:42.0 MONOLITHIC POWER SYSTEMS INC MPWR EARNEST PARTNERS LLC 10.837% view
S 2014-02-11 13:53:12.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC n/a view
B 2014-01-29 21:44:41.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 5.0% view
S 2013-04-08 14:28:33.0 MONOLITHIC POWER SYSTEMS INC MPWR ADAGE CAPITAL PARTNERS GP LLC 5.6% view
B 2013-02-14 13:13:35.0 MONOLITHIC POWER SYSTEMS INC MPWR FRONTIER CAPITAL MANAGEMENT CO LLC 6.4% view
S 2013-02-12 13:02:53.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 4.3% view
S 2013-02-05 10:06:56.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 0.84% view
B 2013-01-31 16:09:45.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 15.0% view
B 2012-08-07 11:45:43.0 MONOLITHIC POWER SYSTEMS INC MPWR FRONTIER CAPITAL MANAGEMENT CO LLC 9.303% view
S 2012-02-14 15:58:44.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 6.77% view
B 2012-02-10 17:28:26.0 MONOLITHIC POWER SYSTEMS INC MPWR VANGUARD GROUP INC 5.27% view
B 2012-01-31 10:08:19.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 11.12% view
B 2011-05-10 15:37:20.0 MONOLITHIC POWER SYSTEMS INC MPWR BLAIR WILLIAM & CO 11.02% view
S 2011-02-14 18:53:33.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LLC n/a view
S 2011-02-07 20:30:59.0 MONOLITHIC POWER SYSTEMS INC MPWR BlackRock Inc 7.14% view
B 2010-12-10 16:11:32.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 10.36% view
B 2010-04-12 10:39:03.0 MONOLITHIC POWER SYSTEMS INC MPWR ALGER FRED MANAGEMENT INC 4.87% view
B 2010-02-16 11:02:44.0 MONOLITHIC POWER SYSTEMS INC MPWR KINGDOM RIDGE CAPITAL MASTER FUND 6.66% view
S 2010-02-01 16:36:50.0 MONOLITHIC POWER SYSTEMS INC MPWR COLUMBIA WANGER ASSET MANAGEMENT LP 5.69% view
B 2009-11-10 15:41:20.0 MONOLITHIC POWER SYSTEMS INC MPWR FMR LLC 12.0% view
S 2009-02-17 13:50:31.0 MONOLITHIC POWER SYSTEMS INC MPWR AXA FINANCIAL INC 0.2% view
S 2009-02-11 10:39:56.0 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 CHANG KUO WEI HERBERT 1.63% view
B 2008-12-15 17:16:55.0 MONOLITHIC POWER SYSTEMS INC MPWR WELLS FARGO & CO 10.34% view
B 2008-06-06 06:03:53.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 10.68% view
S 2008-02-14 15:35:43.0 MONOLITHIC POWER SYSTEMS INC MPWR CHANG KUO WEI HERBERT 4.0% view
B 2008-02-14 07:25:48.0 MONOLITHIC POWER SYSTEMS INC MPWR AXA FINANCIAL INC 5.5% view
S 2008-02-13 19:26:51.0 MONOLITHIC POWER SYSTEMS INC MPWR LAFFONT PHILIPPE 2.8% view
S 2008-01-25 19:15:19.0 MONOLITHIC POWER SYSTEMS INC MPWR BANK OF AMERICA CORP 5.0% view
B 2007-10-10 16:23:31.0 MONOLITHIC POWER SYSTEMS INC MPWR ARTIS CAPITAL MANAGEMENT 14.16% view
B 2007-02-13 14:32:36.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC 7.25% view
S 2007-02-07 17:01:23.0 MONOLITHIC POWER SYSTEMS INC MPWR Moyer James C 6.98% view
B 2007-01-18 15:59:51.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN TECH SPECTRUM 11.3% view
S 2006-09-01 17:16:20.0 MONOLITHIC POWER SYSTEMS INC MPWR SELIGMAN J & W & CO INC n/a view
S 2006-05-10 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 7.51% view
B 2006-03-06 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC n/a view
B 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 Hsing Michael 7.32% view
B 2006-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 CHANG KUO WEI HERBERT 6.81% view
B 2006-02-13 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 SELIGMAN J & W & CO INC 8.14% view
B 2005-12-13 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 6.9% view
B 2005-02-14 00:00:00.0 MONOLITHIC POWER SYSTEMS INC 770466789 CHANG KUO WEI HERBERT 6.9% view
B 2005-02-14 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.