Insider Trading activities of Monolithic Power Systems Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Monolithic Power Systems Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Monolithic Power Systems Inc since year 2005. Table 2 shows the detailed insider transactions of Monolithic Power Systems Inc since 2005. The reporting company's ticker symbol is MPWR. The reporting company's CIK number is 1280452.
The total value of stock buying since 2005 is $0.
The total value of stock sales since 2005 is $421,928,683.
The total value of stock option exercises since 2005 is $42,827,321.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Monolithic Power Systems Inc (MPWR).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-11 0 $0 70,987 $8,690,796 0 $0
2017-10 0 $0 15,462 $1,681,829 0 $0
2017-09 0 $0 19,152 $2,005,251 0 $0
2017-08 0 $0 72,983 $7,426,714 0 $0
2017-07 0 $0 28,290 $2,803,024 0 $0
2017-06 0 $0 21,604 $2,104,990 0 $0
2017-05 0 $0 78,460 $7,335,136 0 $0
2017-04 0 $0 17,012 $1,556,090 0 $0
2017-03 0 $0 17,367 $1,524,256 0 $0
2017-02 0 $0 294,966 $25,881,950 23,567 $0
2017-01 0 $0 4,718 $409,804 0 $0
2016-12 0 $0 12,571 $1,007,035 0 $0
2016-11 0 $0 114,450 $9,138,100 6,819 $131,538
2016-10 0 $0 2,277 $180,783 70,701 $0
2016-09 0 $0 169 $12,892 0 $0
2016-08 0 $0 70,279 $5,137,090 0 $0
2016-07 0 $0 92 $6,234 0 $0
2016-06 0 $0 70 $4,790 0 $0
2016-05 0 $0 113,854 $7,181,730 19,357 $391,011
2016-04 0 $0 86,254 $5,529,310 0 $0
2016-03 0 $0 4,421 $280,408 0 $0
2016-02 0 $0 290,269 $16,824,540 0 $0
2016-01 0 $0 109 $6,642 0 $0
2015-12 0 $0 71 $4,562 275,600 $0
2015-11 0 $0 98,593 $6,335,854 23,176 $284,600
2015-10 0 $0 39,533 $2,289,898 3,000 $36,840
2015-09 0 $0 223 $11,224 0 $0
2015-08 0 $0 39,705 $2,013,613 0 $0
2015-07 0 $0 93 $4,704 0 $0
2015-06 0 $0 462 $24,574 8,234 $98,519
2015-05 0 $0 71,428 $3,728,658 5,705 $130,093
2015-04 0 $0 266,129 $13,917,410 314,117 $4,721,175
2015-03 0 $0 20,155 $1,088,107 275,600 $0
2015-02 0 $0 252,535 $12,278,908 302,408 $600,756
2015-01 0 $0 9,309 $447,144 0 $0
2014-12 0 $0 9,424 $464,289 0 $0
2014-11 0 $0 146,262 $6,633,361 88,529 $1,319,596
2014-10 0 $0 100 $4,361 275,600 $0
2014-09 0 $0 9,422 $444,215 0 $0
2014-08 0 $0 597,633 $27,061,746 0 $0
2014-07 0 $0 2,776 $118,707 278,282 $48,061
2014-06 0 $0 65,472 $2,713,235 197,234 $3,461,887
2014-05 0 $0 92,896 $3,460,612 0 $0
2014-04 0 $0 55,051 $2,052,808 0 $0
2014-03 0 $0 122,979 $4,722,314 45,000 $676,350
2014-02 0 $0 456,175 $15,538,827 106,541 $1,887,465
2014-01 0 $0 59,164 $2,008,473 0 $0
2013-12 0 $0 34,222 $1,124,316 0 $0
2013-11 0 $0 154,865 $5,012,453 20,000 $358,400
2013-10 0 $0 488,060 $15,390,841 209,964 $2,889,944
2013-09 0 $0 97,991 $2,988,430 63,767 $737,724
2013-08 0 $0 229,072 $6,447,029 81,910 $1,432,655
2013-07 0 $0 306,782 $7,864,860 173,753 $2,363,285
2013-06 0 $0 10,422 $251,211 0 $0
2013-05 0 $0 218,065 $5,293,474 151,718 $1,730,491
2013-04 0 $0 43,557 $984,955 35,895 $319,465
2013-03 0 $0 6,551 $158,812 0 $0
2013-02 0 $0 259,010 $6,188,746 129,471 $1,961,591
2013-01 0 $0 68,893 $1,594,271 14,367 $194,384
2012-12 0 $0 4,040 $87,909 500 $6,765
2012-11 0 $0 79,066 $1,560,998 36,000 $318,730
2012-10 0 $0 2,200 $42,737 0 $0
2012-09 0 $0 2,900 $59,534 500 $6,765
2012-08 0 $0 233,911 $5,068,671 173,830 $2,195,102
2012-07 0 $0 10,598 $217,457 0 $0
2012-06 0 $0 11,600 $224,802 0 $0
2012-05 0 $0 100,794 $2,169,727 19,981 $250,033
2012-04 0 $0 59,154 $1,233,942 55,894 $376,712
2012-03 0 $0 1,160 $21,858 0 $0
2012-02 0 $0 185,237 $3,426,107 80,985 $847,423
2012-01 0 $0 14,000 $218,330 14,000 $16,800
2011-12 0 $0 141 $2,016 0 $0
2011-11 0 $0 22,154 $264,342 0 $0
2011-09 0 $0 143 $1,770 0 $0
2011-08 0 $0 50,114 $615,992 13,000 $15,600
2011-07 0 $0 6,340 $90,903 0 $0
2011-06 0 $0 19,480 $287,069 13,000 $15,600
2011-05 0 $0 166,922 $2,794,429 0 $0
2011-04 0 $0 6,340 $92,568 0 $0
2011-03 0 $0 13,000 $184,288 348,997 $2,160,939
2011-02 0 $0 114,409 $1,709,407 259,774 $1,353,643
2010-12 0 $0 16,500 $305,299 16,500 $195,525
2010-11 0 $0 54,786 $876,933 0 $0
2010-09 0 $0 648 $11,093 0 $0
2010-08 0 $0 14,080 $243,871 0 $0
2010-07 0 $0 4,372 $80,832 4,000 $47,400
2010-06 0 $0 6,000 $117,854 6,000 $71,100
2010-05 0 $0 24,772 $571,455 10,693 $108,320
2010-04 0 $0 159,612 $3,855,841 135,700 $833,481
2010-03 0 $0 24,160 $547,565 94,500 $175,028
2010-02 0 $0 15,892 $326,784 0 $0
2010-01 0 $0 200 $4,456 0 $0
2009-12 0 $0 14,970 $357,866 10,650 $89,566
2009-11 0 $0 32,141 $703,465 32,000 $269,120
2009-10 0 $0 61,164 $1,321,793 60,000 $501,080
2009-09 0 $0 33,169 $770,893 31,729 $305,734
2009-08 0 $0 392,907 $9,112,828 36,000 $425,860
2009-07 0 $0 49,871 $1,138,284 49,871 $334,485
2009-06 0 $0 61,948 $1,294,609 55,000 $548,550
2009-05 0 $0 184,522 $3,614,582 113,560 $462,834
2008-09 0 $0 33,850 $710,282 8,000 $31,230
2008-08 0 $0 1,621,063 $42,581,323 137,429 $640,972
2008-07 0 $0 90,637 $2,122,757 63,000 $97,230
2008-06 0 $0 84,100 $2,031,522 15,000 $18,000
2008-05 0 $0 433,991 $10,561,746 101,833 $441,024
2008-04 0 $0 59,150 $1,227,473 5,000 $6,000
2008-03 0 $0 8,500 $153,080 0 $0
2008-02 0 $0 16,000 $264,480 0 $0
2008-01 0 $0 22,900 $477,095 0 $0
2007-12 0 $0 95,050 $2,036,831 0 $0
2007-11 0 $0 108,924 $2,225,631 62,224 $125,138
2007-10 0 $0 305,500 $7,496,894 163,500 $1,756,875
2007-09 0 $0 152,236 $3,586,367 17,500 $147,175
2007-08 0 $0 760,691 $15,219,106 79,403 $273,317
2007-05 0 $0 291,955 $4,988,694 175,001 $947,335
2007-04 0 $0 30,200 $394,099 0 $0
2007-03 0 $0 35,000 $457,955 0 $0
2007-02 0 $0 376,853 $4,991,406 430,000 $627,000
2007-01 0 $0 10,000 $122,382 0 $0
2006-06 0 $0 12,000 $176,159 0 $0
2006-05 0 $0 189,555 $3,285,588 10,000 $8,000
2005-11 0 $0 198,829 $2,832,231 0 $0
2005-10 0 $0 13,000 $144,494 0 $0
2005-09 0 $0 2,000 $17,006 0 $0
2005-08 0 $0 113,204 $796,527 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Monolithic Power Systems Inc insiders (MPWR)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-11-21 Tseng Saria (VP & General Counsel) Sale 4,998 125.61 627,823
2017-11-20 Blegen Theodore (CFO) Sale 79 122.75 9,697
2017-11-20 Moyer James C (Director) Sale 10,000 123.76 1,237,580
2017-11-16 Blegen Theodore (CFO) Sale 110 121.83 13,400
2017-11-14 Hsing Michael (CEO) Sale 18,817 119.63 2,251,058
2017-11-06 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 5,607 123.06 690,014
2017-11-06 Tseng Saria (VP & General Counsel) Sale 5,607 123.06 690,014
2017-11-06 Hsing Michael (CEO) Sale 19,765 123.06 2,432,340
2017-11-06 Xiao Deming (Pres. of MPS Asia Operations) Sale 6,004 123.06 738,870
2017-10-30 Blegen Theodore (CFO) Sale 462 120.68 55,754
2017-10-09 Moyer James C (Director) Sale 15,000 108.41 1,626,075
2017-09-18 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 1,693 104.09 176,224
2017-09-12 Moyer James C (Director) Sale 15,000 105.20 1,577,970
2017-09-01 Blegen Theodore (CFO) Sale 459 101.42 46,551
2017-09-01 Moyer James C (Director) Sale 2,000 102.25 204,506
2017-08-22 Tseng Saria (VP & General Counsel) Sale 4,996 96.50 482,138
2017-08-18 Blegen Theodore (CFO) Sale 89 97.59 8,685
2017-08-17 Blegen Theodore (CFO) Sale 99 100.85 9,984
2017-08-14 Hsing Michael (CEO) Sale 18,817 101.94 1,918,242
2017-08-07 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,983 102.19 304,823
2017-08-07 Tseng Saria (VP & General Counsel) Sale 2,983 102.19 304,823
2017-08-07 Hsing Michael (CEO) Sale 11,132 102.19 1,137,545
2017-08-07 Xiao Deming (Pres. of MPS Asia Operations) Sale 3,381 102.19 345,494
2017-08-04 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,623 101.66 266,662
2017-08-04 Tseng Saria (VP & General Counsel) Sale 2,623 101.66 266,662
2017-08-04 Hsing Michael (CEO) Sale 8,634 101.66 877,758
2017-08-04 Xiao Deming (Pres. of MPS Asia Operations) Sale 2,623 101.66 266,662
2017-08-01 Moyer James C (Director) Sale 12,000 103.10 1,237,236
2017-07-31 Blegen Theodore (CFO) Sale 462 102.60 47,401
2017-07-27 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 10,828 101.60 1,100,124
2017-07-10 Moyer James C (Director) Sale 15,000 97.64 1,464,675
2017-07-03 Moyer James C (Director) Sale 2,000 95.41 190,824
2017-06-26 Blegen Theodore (CFO) Sale 4,604 99.00 455,796
2017-06-12 Moyer James C (Director) Sale 15,000 96.84 1,452,660
2017-06-01 Moyer James C (Director) Sale 2,000 98.27 196,534
2017-05-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 30 95.44 2,863
2017-05-22 Tseng Saria (VP & General Counsel) Sale 4,996 95.37 476,473
2017-05-18 Blegen Theodore (CFO) Sale 11 92.61 1,018
2017-05-18 Xiao Deming (Pres. of MPS Asia Operations) Sale 5,352 93.64 501,139
2017-05-17 Blegen Theodore (CFO) Sale 99 96.75 9,578
2017-05-15 Hsing Michael (CEO) Sale 18,815 96.13 1,808,723
2017-05-08 Moyer James C (Director) Sale 10,000 92.47 924,700
2017-05-05 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,983 92.55 276,088
2017-05-05 Tseng Saria (VP & General Counsel) Sale 2,983 92.55 276,088
2017-05-05 Hsing Michael (CEO) Sale 11,131 92.55 1,030,218
2017-05-05 Xiao Deming (Pres. of MPS Asia Operations) Sale 3,380 92.55 312,832
2017-05-04 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,623 91.89 241,035
2017-05-04 Tseng Saria (VP & General Counsel) Sale 2,623 91.89 241,035
2017-05-04 Hsing Michael (CEO) Sale 8,634 91.89 793,404
2017-05-04 Xiao Deming (Pres. of MPS Asia Operations) Sale 2,623 91.89 241,035
2017-05-01 Blegen Theodore (CFO) Sale 177 91.50 16,195
2017-05-01 Moyer James C (Director) Sale 2,000 91.36 182,712
2017-04-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 12 94.99 1,139
2017-04-10 Moyer James C (Director) Sale 15,000 91.45 1,371,735
2017-04-03 Moyer James C (Director) Sale 2,000 91.61 183,216
2017-03-16 Xiao Deming (Pres. of MPS Asia Operations) Sale 83 93.05 7,723
2017-03-06 Moyer James C (Director) Sale 15,000 87.58 1,313,640
2017-03-01 Blegen Theodore (CFO) Sale 284 88.75 25,205
2017-03-01 Moyer James C (Director) Sale 2,000 88.84 177,688
2017-02-28 Xiao Deming (Pres. of MPS Asia Operations) Sale 10,619 88.08 935,300
2017-02-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 60 87.48 5,248
2017-02-21 Blegen Theodore (CFO) Sale 11 86.52 951
2017-02-21 Tseng Saria (VP & General Counsel) Sale 23,464 87.19 2,045,896
2017-02-17 Blegen Theodore (CFO) Sale 503 86.16 43,339
2017-02-14 Xiao Deming (Pres. of MPS Asia Operations) Sale 13,622 85.20 1,160,553
2017-02-13 Hsing Michael (CEO) Sale 95,667 86.17 8,244,008
2017-02-10 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 18,201 89.29 1,625,240
2017-02-10 Tseng Saria (VP & General Counsel) Sale 18,201 89.29 1,625,240
2017-02-10 Hsing Michael (CEO) Sale 59,943 89.29 5,352,550
2017-02-10 Xiao Deming (Pres. of MPS Asia Operations) Sale 18,201 89.29 1,625,240
2017-02-07 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Option Ex 4,876 .00 0
2017-02-07 Tseng Saria (VP & General Counsel) Option Ex 4,876 .00 0
2017-02-07 Hsing Michael (CEO) Option Ex 8,939 .00 0
2017-02-07 Xiao Deming (Pres. of MPS Asia Operations) Option Ex 4,876 .00 0
2017-02-06 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 4,722 88.25 416,735
2017-02-06 Tseng Saria (VP & General Counsel) Sale 4,723 88.25 416,823
2017-02-06 Hsing Michael (CEO) Sale 19,482 88.25 1,719,364
2017-02-06 Xiao Deming (Pres. of MPS Asia Operations) Sale 5,517 88.25 486,897
2017-02-01 Moyer James C (Director) Sale 2,000 87.97 175,942
2017-01-30 Blegen Theodore (CFO) Sale 206 89.00 18,334
2017-01-24 Moyer James C (Director) Sale 2,500 90.00 225,000
2017-01-23 Xiao Deming (Pres. of MPS Asia Operations) Sale 12 87.36 1,048
2017-01-03 Moyer James C (Director) Sale 2,000 82.71 165,422
2016-12-16 Xiao Deming (Pres. of MPS Asia Operations) Sale 71 84.59 6,005
2016-12-13 Moyer James C (Director) Sale 2,500 85.62 214,050
2016-12-01 Moyer James C (Director) Sale 6,000 78.70 472,188
2016-11-29 Blegen Theodore (CFO) Sale 185 83.78 15,499
2016-11-25 Xiao Deming (Pres. of MPS Asia Operations) Sale 25 83.89 2,097
2016-11-22 Lee Victor K (Director) Sale 4,504 83.74 377,146
2016-11-22 Lee Victor K (Director) Option Ex 4,504 19.29 86,882
2016-11-21 Tseng Saria (VP & General Counsel) Sale 5,633 83.56 470,676
2016-11-21 Lee Victor K (Director) Sale 1,200 83.52 100,224
2016-11-21 Lee Victor K (Director) Option Ex 1,200 19.29 23,148
2016-11-18 Blegen Theodore (CFO) Sale 11 81.66 898
2016-11-18 Lee Victor K (Director) Sale 1,115 82.05 91,489
2016-11-18 Lee Victor K (Director) Option Ex 1,115 19.29 21,508
2016-11-17 Blegen Theodore (CFO) Sale 40 81.27 3,250
2016-11-17 Hsing Michael (CEO) Sale 30,824 81.17 2,502,138
2016-11-09 Xiao Deming (Pres. of MPS Asia Operations) Sale 12,657 78.38 992,017
2016-11-07 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 5,963 77.88 464,416
2016-11-07 Tseng Saria (VP & General Counsel) Sale 5,963 77.88 464,416
2016-11-07 Hsing Michael (CEO) Sale 19,922 77.88 1,551,585
2016-11-07 Xiao Deming (Pres. of MPS Asia Operations) Sale 6,757 77.88 526,255
2016-11-04 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 356 76.32 27,169
2016-11-04 Tseng Saria (VP & General Counsel) Sale 356 76.32 27,169
2016-11-04 Hsing Michael (CEO) Sale 1,171 76.32 89,368
2016-11-04 Xiao Deming (Pres. of MPS Asia Operations) Sale 356 76.32 27,169
2016-11-01 Moyer James C (Director) Sale 2,000 77.03 154,050
2016-10-28 Blegen Theodore (CFO) Sale 177 77.97 13,800
2016-10-28 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Option Ex 14,628 .00 0
2016-10-28 Tseng Saria (VP & General Counsel) Option Ex 14,628 .00 0
2016-10-28 Hsing Michael (CEO) Option Ex 26,817 .00 0
2016-10-28 Xiao Deming (Pres. of MPS Asia Operations) Option Ex 14,628 .00 0
2016-10-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 11 77.89 856
2016-10-05 Xiao Deming (Pres. of MPS Asia Operations) Sale 89 79.14 7,043
2016-10-03 Moyer James C (Director) Sale 2,000 79.54 159,084
2016-09-16 Xiao Deming (Pres. of MPS Asia Operations) Sale 70 75.78 5,304
2016-09-01 Blegen Theodore (CFO) Sale 99 76.65 7,588
2016-08-29 Blegen Theodore (CFO) Sale 185 76.63 14,176
2016-08-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 25 75.85 1,896
2016-08-22 Tseng Saria (VP & General Counsel) Sale 5,653 75.06 424,297
2016-08-18 Blegen Theodore (CFO) Sale 11 73.52 808
2016-08-17 Blegen Theodore (CFO) Sale 40 73.48 2,939
2016-08-17 Hsing Michael (CEO) Sale 16,998 73.43 1,248,180
2016-08-10 Xiao Deming (Pres. of MPS Asia Operations) Sale 6,342 73.14 463,853
2016-08-08 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,981 72.64 216,539
2016-08-08 Tseng Saria (VP & General Counsel) Sale 2,981 72.64 216,539
2016-08-08 Hsing Michael (CEO) Sale 8,791 72.64 638,578
2016-08-08 Xiao Deming (Pres. of MPS Asia Operations) Sale 3,377 72.64 245,305
2016-08-05 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 2,983 72.73 216,953
2016-08-05 Tseng Saria (VP & General Counsel) Sale 2,983 72.73 216,953
2016-08-05 Hsing Michael (CEO) Sale 11,132 72.73 809,630
2016-08-05 Xiao Deming (Pres. of MPS Asia Operations) Sale 3,381 72.73 245,900
2016-08-04 Sciammas Maurice (Sr. V.P.of Sales and Marketing) Sale 356 72.21 25,707
2016-08-04 Tseng Saria (VP & General Counsel) Sale 356 72.21 25,707
2016-08-04 Hsing Michael (CEO) Sale 1,171 72.21 84,561
2016-08-04 Xiao Deming (Pres. of MPS Asia Operations) Sale 356 72.21 25,707
2016-08-02 Blegen Theodore (CFO) Sale 177 72.67 12,862
2016-07-25 Xiao Deming (Pres. of MPS Asia Operations) Sale 10 71.99 719
2016-07-05 Xiao Deming (Pres. of MPS Asia Operations) Sale 82 67.26 5,515
2016-06-16 Xiao Deming (Pres. of MPS Asia Operations) Sale 70 68.43 4,790
2016-05-27 Lee Victor K (Director) Sale 4,000 68.56 274,228
2016-05-27 Lee Victor K (Director) Option Ex 4,000 20.20 80,800
2016-05-26 Lee Victor K (Director) Sale 5,357 67.78 363,102
2016-05-26 Lee Victor K (Director) Option Ex 5,357 20.20 108,211
2016-05-24 Xiao Deming (Pres. of MPS Asia Operations) Sale 27 65.87 1,778
2016-05-23 Tseng Saria (VP & General Counsel) Sale 5,630 65.00 365,950
2016-05-23 Lee Victor K (Director) Sale 10,000 65.44 654,380
2016-05-23 Lee Victor K (Director) Option Ex 10,000 20.20 202,000
2016-05-13 Hsing Michael (CEO) Sale 4,105 60.56 248,598

Insider trading activities including stock purchases, stock sales, and option exercises of MPWR listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Monolithic Power Systems Inc (symbol MPWR, CIK number 1280452) see the Securities and Exchange Commission (SEC) website.