Jeff Zhou insider trades: Monolithic Power Systems (MPWR) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Jeff reports to the SEC
Open-market buys and sales
35 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 26, 2026 | MPWR | ↓ Sell | 486 | $1680.00 | $816K | Direct | May 27, 2026 (1d) |
| May 6, 2026 | MPWR | ↓ Sell | 1,514 | $1607.85 | $2.4M | Direct | May 6, 2026 (0d) |
| Aug 27, 2025 | MPWR | ↓ Sell | 193 | $870.00 | $168K | Direct | Aug 28, 2025 (1d) |
| Aug 13, 2025 | MPWR | ↓ Sell | 400 | $850.00 | $340K | Direct | Aug 15, 2025 (2d) |
| Aug 12, 2025 | MPWR | ↓ Sell | 200 | $830.00 | $166K | Direct | Aug 13, 2025 (1d) |
| May 20, 2024 | MPWR | ↓ Sell | 200 | $750.00 | $150K | Direct | May 22, 2024 (2d) |
| Feb 12, 2024 | MPWR | ↓ Sell | 200 | $750.57 | $150K | Direct | Feb 13, 2024 (1d) |
| Aug 11, 2022 | MPWR | ↓ Sell10b5-1 | 200 | $540.00 | $108K | Direct | Aug 12, 2022 (1d) |
| Aug 3, 2022 | MPWR | ↓ Sell10b5-1 | 200 | $520.00 | $104K | Direct | Aug 3, 2022 (0d) |
| Aug 24, 2021 | MPWR | ↓ Sell | 300 | $490.00 | $147K | Direct | Aug 26, 2021 (2d) |
| Aug 20, 2021 | MPWR | ↓ Sell | 300 | $477.00 | $143K | Direct | Aug 23, 2021 (3d) |
| Aug 4, 2021 | MPWR | ↓ Sell | 400 | $465.22 | $186K | Direct | Aug 5, 2021 (1d) |
| Jul 23, 2021 | MPWR | ↓ Sell10b5-1 | 500 | $410.00 | $205K | Direct | Jul 26, 2021 (3d) |
| Jul 21, 2021 | MPWR | ↓ Sell10b5-1 | 1,000 | $402.51 | $403K | Direct | Jul 21, 2021 (0d) |
| Jul 14, 2021 | MPWR | ↓ Sell10b5-1 | 1,000 | $392.66 | $393K | Direct | Jul 16, 2021 (2d) |
| Jul 7, 2021 | MPWR | ↓ Sell10b5-1 | 500 | $387.27 | $194K | Direct | Jul 8, 2021 (1d) |
| Jul 6, 2021 | MPWR | ↓ Sell10b5-1 | 500 | $380.00 | $190K | Direct | Jul 6, 2021 (0d) |
| Jun 28, 2021 | MPWR | ↓ Sell10b5-1 | 1,500 | $369.27 | $554K | Direct | Jun 28, 2021 (0d) |
| Feb 12, 2021 | MPWR | ↓ Sell | 200 | $388.00 | $78K | Direct | Feb 16, 2021 (4d) |
| Aug 28, 2020 | MPWR | ↓ Sell | 393 | $267.16 | $105K | Direct | Sep 1, 2020 (4d) |
| Aug 7, 2020 | MPWR | ↓ Sell | 600 | $279.33 | $168K | Direct | Aug 7, 2020 (0d) |
| Aug 4, 2020 | MPWR | ↓ Sell | 500 | $272.17 | $136K | Direct | Aug 4, 2020 (0d) |
| May 12, 2020 | MPWR | ↓ Sell | 2,000 | $217.00 | $434K | Direct | May 14, 2020 (2d) |
| May 7, 2020 | MPWR | ↓ Sell | 590 | $205.00 | $121K | Direct | May 11, 2020 (4d) |
| May 5, 2020 | MPWR | ↓ Sell | 500 | $198.00 | $99K | Direct | May 7, 2020 (2d) |
| Feb 13, 2020 | MPWR | ↓ Sell | 500 | $191.00 | $96K | Direct | Feb 14, 2020 (1d) |
| Feb 11, 2020 | MPWR | ↓ Sell | 2,533 | $183.79 | $466K | Direct | Feb 12, 2020 (1d) |
| Aug 1, 2019 | MPWR | ↓ Sell | 1,747 | $157.00 | $274K | Direct | Aug 5, 2019 (4d) |
| Jul 24, 2019 | MPWR | ↓ Sell | 2,000 | $148.50 | $297K | Direct | Jul 24, 2019 (0d) |
| Nov 20, 2015 | MPWR | ↓ Sell | 2,500 | $66.27 | $166K | Direct | Nov 23, 2015 (3d) |
| Jun 30, 2014 | MPWR | ↓ Sell | 20,882 | $42.48 | $887K | Direct | Jul 1, 2014 (1d) |
| Feb 12, 2014 | MPWR | ↓ Sell | 16,000 | $34.48 | $552K | Direct | Feb 13, 2014 (1d) |
| Oct 31, 2013 | MPWR | ↓ Sell | 5,000 | $31.70 | $159K | Direct | Nov 4, 2013 (4d) |
| Feb 12, 2013 | MPWR | ↓ Sell | 1,500 | $25.00 | $37K | Direct | Feb 13, 2013 (1d) |
| Feb 14, 2012 | MPWR | ↓ Sell | 2,000 | $17.41 | $35K | Direct | Feb 16, 2012 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MPWR insiders
Open-market trades in the last 12 months
About Jeff Zhou's insider trades
Jeff Zhou is an insider at Monolithic Power Systems (MPWR). Since Feb 14, 2012, Jeff has reported no open-market purchases and 35 sales worth $11.0M on SEC Form 4. In the last 12 months: 2 sales ($3.3M).
8 sales (20% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (20 filings), option exercises (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MPWR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.