Insider · CIK 0001312593
Saria Tseng
Files at: MPWR, SMCI. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 31, 2026 GForm 4 → | Sep 2, 5:26 pm EDT | MONOLITHIC POWER SYSTEMS, INC.MPWR | 4,000 | — | — | 2,000 | — | |
| Feb 20, 2019 SForm 4 → | Feb 21, 4:31 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 22,403 | $136.93 | $3,067,642 | 328,613 | −6.38% | plan? |
| Feb 15, 2019 JForm 4 → | Feb 21, 4:31 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 92 | $117.71 | $10,829 | 351,016 | — | plan? late |
| Feb 12, 2019 SForm 4 → | Feb 13, 5:12 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 21,694 | $130.66 | $2,834,475 | 350,924 | −5.82% | plan? |
| Feb 11, 2019 AForm 4 → | Feb 13, 5:12 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 74,331 | $30.00 | $2,229,930 | 372,618 | — | plan? |
| Feb 4, 2019 SForm 4 → | Feb 5, 5:59 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 3,623 | $129.59 | $469,501 | 298,287 | −1.20% | plan? |
| Nov 16, 2018 SForm 4 → | Nov 20, 7:30 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 5,641 | $126.45 | $713,307 | 301,910 | −1.83% | plan? |
| Nov 5, 2018 SForm 4 → | Nov 6, 5:00 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,819 | $121.73 | $586,625 | 307,551 | −1.54% | plan? |
| Oct 25, 2018 MForm 4 → | Oct 29, 7:11 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 27,960 | — | — | 312,370 | — | plan? |
| Aug 21, 2018 SForm 4 → | Aug 22, 4:03 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,795 | $143.81 | $833,405 | 284,410 | −2.00% | plan? |
| Aug 15, 2018 JForm 4 → | Aug 22, 4:03 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 64 | $98.74 | $6,320 | 290,205 | — | plan? late |
| Aug 3, 2018 SForm 4 → | Aug 7, 5:12 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,729 | $135.65 | $641,486 | 290,141 | −1.60% | plan? |
| May 21, 2018 SForm 4 → | May 22, 5:03 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,070 | $130.91 | $663,694 | 294,870 | −1.69% | plan? |
| May 3, 2018 SForm 4 → | May 7, 5:10 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,736 | $120.01 | $688,360 | 299,940 | −1.88% | plan? |
| Feb 22, 2018 SForm 4 → | Feb 26, 3:59 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 26,429 | $117.34 | $3,101,166 | 305,676 | −7.96% | plan? |
| Feb 15, 2018 JForm 4 → | Feb 26, 3:59 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 173 | $86.51 | $14,967 | 332,105 | — | plan? late |
| Feb 12, 2018 SForm 4 → | Feb 13, 4:49 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 29,497 | $108.19 | $3,191,404 | 331,932 | −8.16% | plan? |
| Feb 7, 2018 AForm 4 → | Feb 8, 7:51 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 98,760 | $20.00 | $1,975,200 | 361,429 | — | plan? |
| Feb 5, 2018 SForm 4 → | Feb 5, 6:40 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,057 | $113.85 | $461,906 | 262,669 | −1.52% | plan? |
| Nov 21, 2017 SForm 4 → | Nov 22, 4:51 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,998 | $125.62 | $627,824 | 266,726 | −1.84% | plan? |
| Nov 6, 2017 SForm 4 → | Nov 7, 6:21 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 5,607 | $123.06 | $690,012 | 271,724 | −2.02% | plan? |
| Aug 22, 2017 SForm 4 → | Aug 24, 5:38 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,996 | $96.50 | $482,136 | 277,331 | −1.77% | plan? |
| Aug 15, 2017 JForm 4 → | Aug 24, 5:38 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 174 | $73.12 | $12,722 | 282,327 | — | plan? late |
| Aug 4, 2017 SForm 4 → | Aug 7, 7:04 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,606 | $101.94 | $571,485 | 282,153 | −1.95% | plan? |
| May 22, 2017 SForm 4 → | May 23, 6:27 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,996 | $95.37 | $476,472 | 287,759 | −1.71% | plan? |
| May 4, 2017 SForm 4 → | May 8, 5:19 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,606 | $92.24 | $517,125 | 292,755 | −1.88% | plan? |
| Feb 21, 2017 SForm 4 → | Feb 22, 5:19 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 23,464 | $87.86 | $2,061,486 | 298,361 | −7.29% | plan? |
| Feb 15, 2017 JForm 4 → | Feb 22, 5:19 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 134 | $63.43 | $8,499 | 321,825 | — | plan? late |
| Feb 10, 2017 SForm 4 → | Feb 13, 6:22 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 18,201 | $89.29 | $1,625,240 | 321,691 | −5.35% | plan? |
| Feb 7, 2017 AMForm 4 → | Feb 8, 5:07 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 73,480 | — | — | 339,892 | — | plan? |
| Feb 6, 2017 SForm 4 → | Feb 8, 5:07 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,723 | $88.25 | $416,821 | 266,412 | −1.74% | plan? |
| Nov 21, 2016 SForm 4 → | Nov 23, 12:16 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 5,633 | $83.56 | $470,678 | 262,826 | −2.10% | plan? |
| Nov 4, 2016 SForm 4 → | Nov 8, 5:31 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 6,319 | $77.79 | $491,585 | 276,768 | −2.23% | plan? |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:43 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 14,628 | — | — | 283,087 | — | plan? |
| Aug 22, 2016 SForm 4 → | Aug 24, 6:16 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,653 | $75.25 | $425,400 | 268,459 | −2.06% | plan? |
| Aug 15, 2016 JForm 4 → | Aug 24, 6:16 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 20 | $49.38 | $988 | 274,112 | — | plan? late |
| Aug 4, 2016 SForm 4 → | Aug 8, 6:23 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 6,320 | $72.66 | $459,201 | 274,092 | −2.25% | plan? |
| May 23, 2016 SForm 4 → | May 25, 5:09 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 5,630 | $65.00 | $365,950 | 280,412 | −1.97% | plan? |
| May 4, 2016 SForm 4 → | May 6, 7:09 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 6,318 | $61.90 | $391,111 | 286,042 | −2.16% | plan? |
| Feb 19, 2016 SForm 4 → | Feb 22, 7:05 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 28,712 | $58.34 | $1,675,042 | 292,360 | −8.94% | plan? |
| Feb 16, 2016 JForm 4 → | Feb 22, 7:05 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 463 | $43.71 | $20,236 | 321,072 | — | plan? late |
| Feb 5, 2016 SForm 4 → | Feb 9, 5:36 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 5,413 | $57.52 | $311,345 | 320,609 | −1.66% | plan? |
| Feb 4, 2016 SForm 4 → | Feb 4, 6:41 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 22,057 | $57.93 | $1,277,844 | 326,022 | −6.34% | plan? |
| Feb 2, 2016 AForm 4 → | Feb 4, 6:41 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 90,284 | — | — | 348,079 | — | plan? |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:10 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 43,200 | — | — | 257,795 | — | plan? |
| Nov 13, 2015 SForm 4 → | Nov 16, 7:10 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,998 | $62.77 | $313,720 | 214,595 | −2.28% | plan? |
| Nov 6, 2015 SForm 4 → | Nov 10, 2:51 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,507 | $63.91 | $288,031 | 219,593 | −2.01% | plan? |
| Nov 4, 2015 SForm 4 → | Nov 5, 7:07 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 1,071 | $62.69 | $67,145 | 224,100 | −0.48% | plan? |
| Oct 6, 2015 SForm 4 → | Oct 7, 5:10 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 8,284 | $54.08 | $447,975 | 225,171 | −3.55% | plan? |
| Aug 20, 2015 SForm 4 → | Aug 24, 3:54 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 110 | $48.55 | $5,341 | 233,455 | −0.05% | plan? |
| Aug 17, 2015 JForm 4 → | Aug 24, 3:54 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 110 | $43.02 | $4,732 | 233,565 | — | plan? late |
| Aug 10, 2015 SForm 4 → | Aug 11, 7:01 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 1,522 | $51.30 | $78,079 | 233,455 | −0.65% | plan? |
| Aug 4, 2015 SForm 4 → | Aug 6, 6:25 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,060 | $50.50 | $205,043 | 234,977 | −1.70% | plan? |
| May 8, 2015 SForm 4 → | May 12, 6:47 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,490 | $51.87 | $232,915 | 239,037 | −1.84% | plan? |
| May 4, 2015 SForm 4 → | May 6, 8:06 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 4,051 | $51.68 | $209,375 | 243,527 | −1.64% | plan? |
| Feb 19, 2015 SForm 4 → | Feb 20, 6:42 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 28,441 | $50.67 | $1,441,013 | 160,534 | −15.1% | plan? |
| Feb 16, 2015 JForm 4 → | Feb 20, 6:42 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 441 | $37.45 | $16,516 | 188,975 | — | plan? late |
| Feb 6, 2015 SForm 4/A → | Mar 20, 1:23 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 2,234 | $47.51 | $106,126 | 189,178 | −1.17% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:27 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 2,878 | $47.62 | $137,055 | 188,534 | −1.50% | plan? |
| Feb 3, 2015 MForm 4 → | Mar 20, 1:24 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 86,400 | — | — | 247,578 | — | plan? late |
| Feb 3, 2015 SForm 4 → | Feb 5, 7:17 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 23,005 | $47.78 | $1,099,074 | 191,412 | −10.7% | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:17 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 98,252 | — | — | 213,353 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 25, 2018 AMForm 4 → | Oct 29, 7:11 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 75,960 | — | — | 48,000 | — | |
| Mar 1, 2017 AForm 4 → | Mar 3, 2:53 pm EST | Super Micro Computer, Inc.SMCI | 4,500 | — | — | 4,500 | — | |
| Feb 7, 2017 MForm 4 → | Feb 8, 5:07 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 4,876 | — | — | 56,174 | — | |
| Nov 4, 2016 AForm 4 → | Nov 7, 8:41 pm EST | Super Micro Computer, Inc.SMCI | 18,000 | — | — | 18,000 | — | |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:43 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 14,628 | — | — | 61,050 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:24 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 75,678 | — | — | 75,678 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:10 pm EST | MONOLITHIC POWER SYSTEMS INCMPWR | 43,200 | — | — | 0 | — | |
| Feb 3, 2015 MForm 4 → | Mar 20, 1:24 pm EDT | MONOLITHIC POWER SYSTEMS INCMPWR | 86,400 | — | — | 43,200 | — | late |