Senior insider sale
CEO at MONOLITHIC POWER SYSTEMS INC — senior position signals high conviction
$59.31M
40K shares
What this filing means
HSING MICHAEL plans to sell 40K shares of MONOLITHIC POWER SYSTEMS INC valued at approximately $59.31M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 5/18/2026ACC: 0001950047-26-004722
DirectorOfficer· CEO
Since Jul 2018
40K
Shares to sell
$59.31M
Approx. market value
40K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Performance Shares
Not Applicable
1/1/2024
40KTotal acquired40K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
1/1/2024 | Performance Shares Not Applicable | 40K | — |
| Total | 40K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
40K
Market value
$59.31M
5/18/2026
Total
Units
40K
Value
$59.31M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
5/18/2026 | 40K | $59.31M | NASDAQ | Planned |
| Total | 40K | $59.31M | ||