Jeff Zhou
CIK 1480772 · View on SEC EDGAR ↗
Insider
First SEC filing: May 27, 2026 · Latest: May 27, 2026
On this page
Insider at
Insider transactions
0 buys (P)
5 sells (S)
Net:
$-3,418,673
+ 30 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
30 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 | MPWR | S | 486 | $1680.00 | $816,480 | 3,800 Direct | -11.34% | Disposed | -23.3% (price as of 2026-08-19) |
| May 6, 2026 | MPWR | S | 500 | $1650.00 | $825,000 | 4,286 Direct | -10.45% | Disposed | -21.9% (price as of 2026-08-19) |
| May 5, 2026 | MPWR | S | 500 | $1600.00 | $800,000 | 4,786 Direct | -9.46% | Disposed | -19.4% (price as of 2026-08-19) |
| May 5, 2026 | MPWR | S | 514 | $1574.48 | $809,283 | 5,286 Direct | -8.86% | Disposed | -18.1% (price as of 2026-08-19) |
| Aug. 27, 2025 | MPWR | S | 193 | $870.00 | $167,910 | 5,611 Direct | -3.33% | Disposed | 48.2% (price as of 2026-08-19) |
| Aug. 13, 2025 | MPWR | S | 400 | $850.00 | $340,000 | 5,804 Direct | -6.45% | Disposed | 51.7% (price as of 2026-08-19) |
| Aug. 12, 2025 | MPWR | S | 200 | $830.00 | $166,000 | 6,204 Direct | -3.12% | Disposed | 55.3% (price as of 2026-08-19) |
| May 20, 2024 | MPWR | S | 200 | $750.00 | $150,000 | 6,069 Direct | -3.19% | Disposed | 71.9% (price as of 2026-08-19) |
| Feb. 12, 2024 | MPWR | S | 200 | $750.57 | $150,114 | 6,269 Direct | -3.09% | Disposed | 71.8% (price as of 2026-08-19) |
| Aug. 11, 2022 | MPWR | S 10b5-1 | 200 | $540.00 | $108,000 | 5,651 Direct | -3.42% | Disposed | 138.7% (price as of 2026-08-19) |
| Aug. 3, 2022 | MPWR | S 10b5-1 | 200 | $520.00 | $104,000 | 5,851 Direct | -3.31% | Disposed | 147.9% (price as of 2026-08-19) |
| Aug. 24, 2021 | MPWR | S | 300 | $490.00 | $147,000 | 5,509 Direct | -5.16% | Disposed | 163.1% (price as of 2026-08-19) |
| Aug. 20, 2021 | MPWR | S | 300 | $477.00 | $143,100 | 5,809 Direct | -4.91% | Disposed | 170.3% (price as of 2026-08-19) |
| Aug. 4, 2021 | MPWR | S | 400 | $465.22 | $186,088 | 6,109 Direct | -6.15% | Disposed | 177.1% (price as of 2026-08-19) |
| July 23, 2021 | MPWR | S 10b5-1 | 500 | $410.00 | $205,000 | 6,509 Direct | -7.13% | Disposed | 214.4% (price as of 2026-08-19) |
| July 21, 2021 | MPWR | S 10b5-1 | 500 | $405.02 | $202,510 | 7,009 Direct | -6.66% | Disposed | 218.3% (price as of 2026-08-19) |
| July 21, 2021 | MPWR | S 10b5-1 | 500 | $400.00 | $200,000 | 7,509 Direct | -6.24% | Disposed | 222.3% (price as of 2026-08-19) |
| July 14, 2021 | MPWR | S 10b5-1 | 500 | $395.00 | $197,500 | 8,009 Direct | -5.88% | Disposed | 226.4% (price as of 2026-08-19) |
| July 14, 2021 | MPWR | S 10b5-1 | 500 | $390.32 | $195,160 | 8,509 Direct | -5.55% | Disposed | 230.3% (price as of 2026-08-19) |
| July 7, 2021 | MPWR | S 10b5-1 | 500 | $387.27 | $193,635 | 9,009 Direct | -5.26% | Disposed | 232.9% (price as of 2026-08-19) |
| July 6, 2021 | MPWR | S 10b5-1 | 500 | $380.00 | $190,000 | 9,509 Direct | -5.00% | Disposed | 239.3% (price as of 2026-08-19) |
| June 28, 2021 | MPWR | S 10b5-1 | 1,000 | $367.65 | $367,650 | 10,509 Direct | -8.69% | Disposed | 250.6% (price as of 2026-08-19) |
| June 28, 2021 | MPWR | S 10b5-1 | 250 | $370.00 | $92,500 | 10,259 Direct | -2.38% | Disposed | 248.4% (price as of 2026-08-19) |
| June 28, 2021 | MPWR | S 10b5-1 | 250 | $375.00 | $93,750 | 10,009 Direct | -2.44% | Disposed | 243.8% (price as of 2026-08-19) |
| Feb. 12, 2021 | MPWR | S | 200 | $388.00 | $77,600 | 11,509 Direct | -1.71% | Disposed | 232.3% (price as of 2026-08-19) |
| Aug. 28, 2020 | MPWR | S | 200 | $266.35 | $53,270 | 11,369 Direct | -1.73% | Disposed | 384.0% (price as of 2026-08-19) |
| Aug. 28, 2020 | MPWR | S | 193 | $268.00 | $51,724 | 11,176 Direct | -1.70% | Disposed | 381.0% (price as of 2026-08-19) |
| Aug. 7, 2020 | MPWR | S | 200 | $283.00 | $56,600 | 11,569 Direct | -1.70% | Disposed | 355.5% (price as of 2026-08-19) |
| Aug. 6, 2020 | MPWR | S | 200 | $279.00 | $55,800 | 11,769 Direct | -1.67% | Disposed | 362.1% (price as of 2026-08-19) |
| Aug. 5, 2020 | MPWR | S | 200 | $276.00 | $55,200 | 11,969 Direct | -1.64% | Disposed | 367.1% (price as of 2026-08-19) |
| Aug. 4, 2020 | MPWR | S | 47 | $273.00 | $12,831 | 12,169 Direct | -0.38% | Disposed | 372.2% (price as of 2026-08-19) |
| Aug. 3, 2020 | MPWR | S | 153 | $273.00 | $41,769 | 12,216 Direct | -1.24% | Disposed | 372.2% (price as of 2026-08-19) |
| July 31, 2020 | MPWR | S | 300 | $271.62 | $81,486 | 12,369 Direct | -2.37% | Disposed | 374.6% (price as of 2026-08-19) |
| May 12, 2020 | MPWR | S | 1,000 | $216.00 | $216,000 | 13,669 Direct | -6.82% | Disposed | 496.8% (price as of 2026-08-19) |
| May 12, 2020 | MPWR | S | 1,000 | $218.00 | $218,000 | 12,669 Direct | -7.32% | Disposed | 491.4% (price as of 2026-08-19) |
| May 7, 2020 | MPWR | S | 590 | $205.00 | $120,950 | 14,669 Direct | -3.87% | Disposed | 528.9% (price as of 2026-08-19) |
| May 5, 2020 | MPWR | S | 500 | $198.00 | $99,000 | 15,259 Direct | -3.17% | Disposed | 551.1% (price as of 2026-08-19) |
| Feb. 13, 2020 | MPWR | S | 500 | $191.00 | $95,500 | 15,759 Direct | -3.08% | Disposed | 574.9% (price as of 2026-08-19) |
| Feb. 11, 2020 | MPWR | S | 500 | $185.00 | $92,500 | 15,744 Direct | -3.08% | Disposed | 596.8% (price as of 2026-08-19) |
| Feb. 11, 2020 | MPWR | S | 533 | $187.00 | $99,671 | 15,211 Direct | -3.39% | Disposed | 589.4% (price as of 2026-08-19) |
| Feb. 10, 2020 | MPWR | S | 1,500 | $182.24 | $273,360 | 16,244 Direct | -8.45% | Disposed | 607.4% (price as of 2026-08-19) |
| Aug. 1, 2019 | MPWR | S 10b5-1 | 1,747 | $157.00 | $274,279 | 17,744 Direct | -8.96% | Disposed | 721.1% (price as of 2026-08-19) |
| July 24, 2019 | MPWR | S 10b5-1 | 1,000 | $150.00 | $150,000 | 19,491 Direct | -4.88% | Disposed | 759.4% (price as of 2026-08-19) |
| July 22, 2019 | MPWR | S 10b5-1 | 1,000 | $147.00 | $147,000 | 20,491 Direct | -4.65% | Disposed | 777.0% (price as of 2026-08-19) |
| Nov. 20, 2015 | MPWR | S | 702 | $66.60 | $46,753 | 15,113 Direct | -4.44% | Disposed | 1835.7% (price as of 2026-08-19) |
| Nov. 20, 2015 | MPWR | S | 298 | $66.80 | $19,906 | 14,815 Direct | -1.97% | Disposed | 1829.9% (price as of 2026-08-19) |
| Nov. 19, 2015 | MPWR | S | 1,500 | $66.01 | $99,015 | 15,815 Direct | -8.66% | Disposed | 1853.0% (price as of 2026-08-19) |
| June 30, 2014 | MPWR | S 10b5-1 | 5,000 | $42.49 | $212,450 | 30,664 Direct | -14.02% | Disposed | 2934.0% (price as of 2026-08-19) |
| June 30, 2014 | MPWR | S 10b5-1 | 5,000 | $42.49 | $212,450 | 25,664 Direct | -16.31% | Disposed | 2934.0% (price as of 2026-08-19) |
| June 30, 2014 | MPWR | S 10b5-1 | 5,000 | $42.48 | $212,400 | 20,664 Direct | -19.48% | Disposed | 2934.7% (price as of 2026-08-19) |
| June 30, 2014 | MPWR | S 10b5-1 | 5,882 | $42.48 | $249,867 | 14,782 Direct | -28.46% | Disposed | 2934.7% (price as of 2026-08-19) |
| Feb. 12, 2014 | MPWR | S | 8,000 | $34.70 | $277,600 | 14,782 Direct | -35.12% | Disposed | 3615.1% (price as of 2026-08-19) |
| Feb. 11, 2014 | MPWR | S | 8,000 | $34.26 | $274,080 | 11,289 Direct | -41.47% | Disposed | 3662.8% (price as of 2026-08-19) |
| Oct. 31, 2013 | MPWR | S | 5,000 | $31.70 | $158,500 | 11,289 Direct | -30.70% | Disposed | 3966.7% (price as of 2026-08-19) |
| Feb. 12, 2013 | MPWR | S | 1,500 | $25.00 | $37,500 | 11,289 Direct | -11.73% | Disposed | 5056.6% (price as of 2026-08-19) |
| Feb. 14, 2012 | MPWR | S | 1,700 | $17.41 | $29,597 | 8,835 Direct | -16.14% | Disposed | 7304.7% (price as of 2026-08-19) |
| Feb. 14, 2012 | MPWR | S | 300 | $17.40 | $5,220 | 8,535 Direct | -3.40% | Disposed | 7308.9% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 30, 2014 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (1,882) | $19.29 | Feb. 9, 2017 | 1,882 | Disposed |
| June 30, 2014 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (19,000) | — | Feb. 9, 2017 | 19,000 | Disposed |
| Feb. 12, 2014 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (8,000) | — | Feb. 9, 2017 | 8,000 | Disposed |
| Feb. 11, 2014 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (8,000) | — | Feb. 9, 2017 | 8,000 | Disposed |
| Oct. 31, 2013 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | — | Feb. 9, 2017 | 5,000 | Disposed |
| Feb. 28, 2013 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (1,882) | $19.29 | Feb. 9, 2017 | 1,882 | Acquired |
| Feb. 9, 2010 | MPWR | Non-Qualified Stock Option (right to buy) | Common Stock (40,000) | $20.20 | Feb. 9, 2017 | 40,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).