Company · CIK 0001280452 · SIC 3674 — Semiconductors & Related Devices · Nasdaq
MONOLITHIC POWER SYSTEMS, INC. · MPWR
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Mar 18, 2015 MForm 4 → | Mar 20, 1:45 pm EDT | Deming XiaoPres. of MPS Asia Operations | 43,200 | — | — | 301,575 | — | plan? |
| Mar 16, 2015 SForm 4 → | Mar 18, 6:05 pm EDT | Deming XiaoPres. of MPS Asia Operations | 259 | $53.16 | $13,768 | 1,889 | −12.1% | plan? |
| Feb 24, 2015 SForm 4 → | Feb 25, 1:41 pm EST | Victor K LeeDirector | 5,000 | $52.50 | $262,500 | 20,615 | −19.5% | plan? |
| Feb 24, 2015 MForm 4 → | Feb 25, 1:41 pm EST | Victor K LeeDirector | 5,000 | $23.05 | $115,250 | 25,615 | — | plan? |
| Feb 19, 2015 SForm 4 → | Feb 23, 2:12 pm EST | James C MoyerDirector | 9,200 | $51.04 | $469,575 | 98,223 | −8.56% | plan? |
| Feb 19, 2015 SForm 4 → | Feb 23, 2:09 pm EST | Pilkington Karen A Smith-Director | 15,705 | $50.96 | $800,289 | 20,815 | −43.0% | plan? |
| Feb 19, 2015 MForm 4 → | Feb 23, 2:09 pm EST | Pilkington Karen A Smith-Director | 15,705 | $23.00 | $361,267 | 35,815 | — | plan? |
| Feb 19, 2015 SForm 4 → | Feb 20, 6:42 pm EST | Saria TsengVP & General Counsel | 28,441 | $50.67 | $1,441,013 | 160,534 | −15.1% | plan? |
| Feb 16, 2015 JForm 4 → | Feb 20, 6:42 pm EST | Saria TsengVP & General Counsel | 441 | $37.45 | $16,516 | 188,975 | — | plan? late |
| Feb 13, 2015 SForm 4 → | Feb 17, 7:17 pm EST | Victor K LeeDirector | 5,000 | $50.25 | $251,250 | 20,615 | −19.5% | plan? |
| Feb 13, 2015 MForm 4 → | Feb 17, 7:17 pm EST | Victor K LeeDirector | 5,000 | $23.05 | $115,250 | 25,615 | — | plan? |
| Feb 10, 2015 SForm 4 → | Feb 12, 5:35 pm EST | Meera RaoCFO | 1,182 | $47.87 | $56,582 | 149,512 | −0.78% | plan? |
| Feb 9, 2015 AForm 4 → | Feb 10, 7:04 pm EST | Jeff ZhouDirector | 2,533 | — | — | 17,315 | — | plan? |
| Feb 9, 2015 AForm 4 → | Feb 10, 7:02 pm EST | Victor K LeeDirector | 2,533 | — | — | 20,615 | — | plan? |
| Feb 9, 2015 AForm 4 → | Feb 10, 6:59 pm EST | Eugen J ElmigerDirector | 2,533 | — | — | 11,261 | — | plan? |
| Feb 9, 2015 AForm 4 → | Feb 10, 6:57 pm EST | Kuo Wei Herbert ChangDirector | 2,533 | — | — | 6,026 | — | plan? |
| Feb 9, 2015 AForm 4 → | Feb 10, 6:54 pm EST | Pilkington Karen A Smith-Director | 2,533 | — | — | 20,815 | — | plan? |
| Feb 6, 2015 SForm 4/A → | Mar 20, 1:23 pm EDT | Saria TsengVP & General Counsel | 2,234 | $47.51 | $106,126 | 189,178 | −1.17% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:27 pm EST | Saria TsengVP & General Counsel | 2,878 | $47.62 | $137,055 | 188,534 | −1.50% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:26 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 2,234 | $47.51 | $106,126 | 229,802 | −0.96% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:26 pm EST | Deming XiaoPres. of MPS Asia Operations | 2,748 | $47.51 | $130,555 | 214,701 | −1.26% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:25 pm EST | Meera RaoCFO | 5,248 | $47.50 | $249,262 | 150,694 | −3.37% | plan? |
| Feb 6, 2015 SForm 4 → | Feb 9, 8:25 pm EST | Michael HsingCEO, Director | 6,629 | $47.51 | $314,913 | 587,240 | −1.12% | plan? |
| Feb 5, 2015 SForm 4 → | Feb 13, 7:33 pm EST | Michael HsingCEO, Director | 2,699 | $48.02 | $129,607 | 591,170 | −0.45% | plan? late |
| Feb 5, 2015 MForm 4 → | Feb 9, 8:26 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 1,103 | $14.89 | $16,424 | 232,036 | — | plan? |
| Feb 5, 2015 SForm 4 → | Feb 5, 7:10 pm EST | Michael HsingCEO, Director | 70,260 | $47.80 | $3,358,714 | 26,301 | −72.8% | plan? |
| Feb 3, 2015 MForm 4 → | Mar 20, 2:03 pm EDT | Meera RaoCFO | 72,000 | — | — | 221,512 | — | plan? late |
| Feb 3, 2015 MForm 4 → | Mar 20, 2:01 pm EDT | Maurice SciammasSr. V.P.of Sales and Marketing | 86,400 | — | — | 316,202 | — | plan? late |
| Feb 3, 2015 JMForm 4 → | Mar 20, 1:41 pm EDT | Michael HsingCEO, Director | 220,567 | $37.45 | $21,235 | 1,037,891 | — | plan? late |
| Feb 3, 2015 MForm 4 → | Mar 20, 1:24 pm EDT | Saria TsengVP & General Counsel | 86,400 | — | — | 247,578 | — | plan? late |
| Feb 3, 2015 AJMForm 4 → | Mar 18, 6:05 pm EDT | Deming XiaoPres. of MPS Asia Operations | 44,243 | $37.45 | $17,752 | 2,148 | — | plan? late |
| Feb 3, 2015 SForm 4 → | Feb 5, 7:24 pm EST | Meera RaoCFO | 19,153 | $47.75 | $914,649 | 155,942 | −10.9% | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:24 pm EST | Meera RaoCFO | 79,999 | — | — | 173,540 | — | plan? |
| Feb 3, 2015 SForm 4 → | Feb 5, 7:22 pm EST | Deming XiaoPres. of MPS Asia Operations | 27,106 | $47.75 | $1,294,415 | 1,579 | −94.5% | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:22 pm EST | Deming XiaoPres. of MPS Asia Operations | 110,275 | — | — | 242,312 | — | plan? |
| Feb 3, 2015 SForm 4 → | Feb 5, 7:20 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 23,348 | $47.77 | $1,115,326 | 230,933 | −9.18% | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:20 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 98,252 | — | — | 252,975 | — | plan? |
| Feb 3, 2015 SForm 4 → | Feb 5, 7:17 pm EST | Saria TsengVP & General Counsel | 23,005 | $47.78 | $1,099,074 | 191,412 | −10.7% | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:17 pm EST | Saria TsengVP & General Counsel | 98,252 | — | — | 213,353 | — | plan? |
| Feb 3, 2015 AForm 4 → | Feb 5, 7:10 pm EST | Michael HsingCEO, Director | 292,706 | — | — | 661,430 | — | plan? |
| Jan 26, 2015 SForm 4 → | Jan 27, 7:49 pm EST | Deming XiaoPres. of MPS Asia Operations | 12 | $47.82 | $574 | 1,706 | −0.70% | plan? |
| Jan 8, 2015 SForm 4 → | Jan 12, 5:57 pm EST | James C MoyerDirector | 9,200 | $48.03 | $441,900 | 107,423 | −7.89% | plan? |
| Jan 5, 2015 SForm 4 → | Jan 6, 5:47 pm EST | Deming XiaoPres. of MPS Asia Operations | 97 | $48.18 | $4,673 | 1,718 | −5.34% | plan? |
| Apr 24, 2012 AForm 4 → | Nov 14, 2016, 8:34 pm EST | Deming XiaoPres. of MPS Asia Operations | 8,448 | — | — | 8,620 | — | plan? late |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 25, 2018 AMForm 4 → | Oct 29, 7:16 pm EDT | Maurice SciammasSr. V.P.of Sales and Marketing | 75,960 | — | — | 48,000 | — | |
| Oct 25, 2018 AMForm 4 → | Oct 29, 7:16 pm EDT | Deming XiaoPres. of MPS Asia Operations | 75,960 | — | — | 48,000 | — | |
| Oct 25, 2018 AForm 4 → | Oct 29, 7:15 pm EDT | Theodore BlegenCFO | 48,000 | — | — | 48,000 | — | |
| Oct 25, 2018 AMForm 4 → | Oct 29, 7:11 pm EDT | Saria TsengVP & General Counsel | 75,960 | — | — | 48,000 | — | |
| Oct 25, 2018 AMForm 4 → | Oct 29, 7:07 pm EDT | Michael HsingCEO, Director | 159,265 | — | — | 108,000 | — | |
| Feb 7, 2017 MForm 4 → | Feb 8, 5:38 pm EST | Deming XiaoPres. of MPS Asia Operations | 4,876 | — | — | 56,174 | — | |
| Feb 7, 2017 MForm 4 → | Feb 8, 5:17 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 4,876 | — | — | 56,174 | — | |
| Feb 7, 2017 MForm 4 → | Feb 8, 5:15 pm EST | Michael HsingCEO, Director | 8,939 | — | — | 102,987 | — | |
| Feb 7, 2017 MForm 4 → | Feb 8, 5:07 pm EST | Saria TsengVP & General Counsel | 4,876 | — | — | 56,174 | — | |
| Nov 22, 2016 MForm 4 → | Nov 23, 12:12 pm EST | Victor K LeeDirector | 4,504 | — | — | 0 | — | |
| Nov 18, 2016 MForm 4 → | Nov 22, 7:57 pm EST | Victor K LeeDirector | 2,315 | — | — | 3,328 | — | |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:57 pm EDT | Michael HsingCEO, Director | 26,817 | — | — | 111,926 | — | |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:52 pm EDT | Deming XiaoPres. of MPS Asia Operations | 14,628 | — | — | 61,050 | — | |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:51 pm EDT | Maurice SciammasSr. V.P.of Sales and Marketing | 14,628 | — | — | 61,050 | — | |
| Oct 28, 2016 MForm 4 → | Nov 1, 6:43 pm EDT | Saria TsengVP & General Counsel | 14,628 | — | — | 61,050 | — | |
| May 26, 2016 MForm 4 → | May 27, 6:08 pm EDT | Victor K LeeDirector | 9,357 | — | — | 5,643 | — | |
| May 23, 2016 MForm 4 → | May 25, 5:13 pm EDT | Victor K LeeDirector | 10,000 | — | — | 15,000 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:25 pm EST | Deming XiaoPres. of MPS Asia Operations | 75,678 | — | — | 75,678 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:24 pm EST | Saria TsengVP & General Counsel | 75,678 | — | — | 75,678 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:22 pm EST | Meera RaoCFO | 63,065 | — | — | 63,065 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:21 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 75,678 | — | — | 75,678 | — | |
| Dec 31, 2015 AForm 4 → | Jan 5, 2016, 6:19 pm EST | Michael HsingCEO, Director | 138,743 | — | — | 138,743 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:13 pm EST | Meera RaoCFO | 36,000 | — | — | 0 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:12 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 43,200 | — | — | 0 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:11 pm EST | Deming XiaoPres. of MPS Asia Operations | 43,200 | — | — | 0 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:11 pm EST | Michael HsingCEO, Director | 110,000 | — | — | 0 | — | |
| Dec 17, 2015 MForm 4 → | Dec 21, 5:10 pm EST | Saria TsengVP & General Counsel | 43,200 | — | — | 0 | — | |
| Nov 24, 2015 MForm 4 → | Nov 24, 8:08 pm EST | Victor K LeeDirector | 2,582 | — | — | 0 | — | |
| Nov 5, 2015 MForm 4 → | Nov 6, 7:08 pm EST | Victor K LeeDirector | 20,000 | — | — | 1,406 | — | |
| Oct 30, 2015 MForm 4 → | Nov 2, 7:17 pm EST | Victor K LeeDirector | 3,594 | — | — | 21,406 | — | |
| Jun 11, 2015 MForm 4 → | Jun 12, 6:07 pm EDT | Maurice SciammasSr. V.P.of Sales and Marketing | 8,234 | — | — | 0 | — | |
| May 14, 2015 MForm 4 → | May 18, 6:58 pm EDT | Victor K LeeDirector | 5,705 | — | — | 0 | — | |
| Apr 9, 2015 MForm 4 → | Apr 13, 6:45 pm EDT | Michael HsingCEO, Director | 10,507 | — | — | 0 | — | |
| Apr 6, 2015 MForm 4 → | Apr 8, 6:57 pm EDT | Michael HsingCEO, Director | 108,309 | — | — | 10,507 | — | |
| Apr 1, 2015 MForm 4 → | Apr 3, 5:33 pm EDT | Michael HsingCEO, Director | 195,301 | — | — | 118,816 | — | |
| Mar 18, 2015 MForm 4 → | Mar 20, 1:45 pm EDT | Deming XiaoPres. of MPS Asia Operations | 43,200 | — | — | 43,200 | — | |
| Feb 24, 2015 MForm 4 → | Feb 25, 1:41 pm EST | Victor K LeeDirector | 5,000 | — | — | 5,000 | — | |
| Feb 19, 2015 MForm 4 → | Feb 23, 2:09 pm EST | Pilkington Karen A Smith-Director | 15,705 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 7:17 pm EST | Victor K LeeDirector | 5,000 | — | — | 10,000 | — | |
| Feb 5, 2015 MForm 4 → | Feb 9, 8:26 pm EST | Maurice SciammasSr. V.P.of Sales and Marketing | 1,103 | — | — | 0 | — | |
| Feb 3, 2015 MForm 4 → | Mar 20, 2:03 pm EDT | Meera RaoCFO | 72,000 | — | — | 36,000 | — | late |
| Feb 3, 2015 MForm 4 → | Mar 20, 2:01 pm EDT | Maurice SciammasSr. V.P.of Sales and Marketing | 86,400 | — | — | 43,200 | — | late |
| Feb 3, 2015 MForm 4 → | Mar 20, 1:41 pm EDT | Michael HsingCEO, Director | 220,000 | — | — | 110,000 | — | late |
| Feb 3, 2015 MForm 4 → | Mar 20, 1:24 pm EDT | Saria TsengVP & General Counsel | 86,400 | — | — | 43,200 | — | late |
| Feb 3, 2015 MForm 4 → | Mar 18, 6:05 pm EDT | Deming XiaoPres. of MPS Asia Operations | 43,200 | — | — | 86,400 | — | late |