MONOLITHIC POWER SYSTEMS, INC. (MPWR) — Insider Trading
Insider trading activity for MONOLITHIC POWER SYSTEMS, INC. sourced from SEC EDGAR Form 4 filings.
Overview
- Total insider trades: 97
- Last trade date: Sep 30, 2026
- Ticker: MPWR
Top Insiders
- Hsing Michael (CEO) — 21 trades, buy: $0, sell: $99.7M
- Tseng Saria (EVP & General Counsel) — 34 trades, buy: $0, sell: $68.9M
- Xiao Deming (EVP, Global Operations) — 4 trades, buy: $0, sell: $49.6M
- MICHAEL HSING (Officer) — 1 trades, buy: $0, sell: $40.3M
- Sciammas Maurice (EVP, WW Sales & Marketing) — 17 trades, buy: $0, sell: $19.5M
Recent Trades
| Date | Insider | Ticker / Company |
Type | Shares | Value |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
130 |
$176K |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
10,967 |
$14.8M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
6,343 |
$8.5M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
5,783 |
$7.8M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
2,949 |
$3.9M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
1,111 |
$1.5M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
2,121 |
$2.8M |
| Sep 28, 2026 |
Hsing Michael |
MPWR MONOLITHIC POWER SYSTEMS, INC. |
SELL |
596 |
$789K |
| Sep 28, 2026 |
MICHAEL HSING |
MMPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
30,000 |
$40.3M |
| Aug 24, 2026 |
DEAN ROBERT W II |
MMPWR MMPWR |
SELL |
32 |
$42K |
| Aug 24, 2026 |
DEAN ROBERT W II |
MMPWR MMPWR |
SELL |
32 |
$42K |
| Aug 17, 2026 |
DEAN ROBERT W II |
MMPWR MMPWR |
SELL |
6 |
$8K |
| Jul 1, 2026 |
Sciammas Maurice |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
30 |
$41K |
| Jun 1, 2026 |
Sciammas Maurice |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
30 |
$46K |
| May 29, 2026 |
Sciammas Maurice |
MPWR MONOLITHIC POWER SYSTEMS INC |
OTHER |
12,472 |
N/A |
| May 27, 2026 |
Tseng Saria |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
7,565 |
$12.9M |
| May 26, 2026 |
DEAN ROBERT W II |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
22 |
$36K |
| May 22, 2026 |
Tseng Saria |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
5,000 |
$7.9M |
| May 22, 2026 |
Tseng Saria |
MPWR MONOLITHIC POWER SYSTEMS INC |
OTHER |
200 |
N/A |
| May 26, 2026 |
Zhou Jeff |
MPWR MONOLITHIC POWER SYSTEMS INC |
SELL |
486 |
$816K |
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