MONOLITHIC POWER SYSTEMS INC
MPWR
DELAYED 1 MONTH
17 insider filings · Latest: Jun 1, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | Jun 3 9:31 PM | Maurice SciammasEVP, WW Sales & Marketing | Sale | 30 | $1,533.95 | $46.0K | 1,179(I) | View → |
| May 27, 2026 | May 29 10:43 PM | Saria TsengEVP & General Counsel | Sale | 7,565 | $1,700.00 | $12.9M | 144,218(D) | View → |
| May 26, 2026 | May 28 11:46 PM | Robert W Dean IIInterim CFO | Sale | 22 | $1,649.56 | $36.3K | 5,878(D) | View → |
| May 26, 2026 | May 27 11:28 PM | Jeff ZhouDirector | Sale | 486 | $1,680.00 | $816.5K | 3,800(D) | View → |
| May 22, 2026 | May 27 9:07 PM | Saria TsengEVP & General Counsel | Sale | 5,000 | $1,586.43 | $7.9M | 151,783(D) | View → |
| May 18, 2026 | May 21 12:10 AM | Michael HsingDirector, CEO | Sale | 40,000 | $1,482.75 | $59.3M | 848,263(D) | View → |
| May 18, 2026 | May 20 10:52 PM | Robert W Dean IIInterim CFO | Sale | 4 | $1,563.28 | $6.3K | 5,900(D) | View → |
| May 15, 2026 | May 19 11:09 PM | Maurice SciammasEVP, WW Sales & Marketing | Sale | 12,000 | $1,561.40 | $18.7M | 166,644(D) | View → |
| May 6, 2026 | May 8 11:37 PM | Eugen J ElmigerDirector | Sale | 12,000 | $1,584.96 | $19.0M | 5,402(D) | View → |
| May 6, 2026 | May 8 10:15 PM | Deming XiaoEVP, Global Operations | Sale | 30,000 | $1,654.55 | $49.6M | 205,959(D) | View → |
| May 6, 2026 | May 8 6:36 PM | Eileen WynneDirector | Sale | 335 | $1,582.68 | $530.2K | 1,007(D) | View → |
| May 6, 2026 | May 6 11:59 PM | Jeff ZhouDirector | Sale | 500 | $1,650.00 | $825.0K | 4,286(D) | View → |
| May 5, 2026 | May 6 11:59 PM | Jeff ZhouDirector | Sale | 1,014 | $1,587.06 | $1.6M | 4,786(D) | View → |
| May 5, 2026 | May 6 7:18 PM | Maurice SciammasEVP, WW Sales & Marketing | Sale | 380 | $1,583.81 | $601.8K | 919(I) | View → |
| May 4, 2026 | May 6 4:55 PM | Maurice SciammasEVP, WW Sales & Marketing | Sale | 30 | $1,588.73 | $47.7K | 1,209(I) | View → |
Stock Options & Derivatives
No transactions found.