Senior insider sale
CEO at MONOLITHIC POWER SYSTEMS INC — senior position signals high conviction
$181.07M
154.92K shares
What this filing means
HSING MICHAEL plans to sell 154.92K shares of MONOLITHIC POWER SYSTEMS INC valued at approximately $181.07M. 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: 2/12/2026ACC: 0001950047-26-001207
DirectorOfficer· CEO
Since Jul 2018
154.92K
Shares to sell
$181.07M
Approx. market value
33K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months2
Performance Shares
Not Applicable
2/3/2026
14.90KPerformance Shares
Not Applicable
10/25/2025
18.10KTotal acquired33K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
2/3/2026 | Performance Shares Not Applicable | 14.90K | — |
10/25/2025 | Performance Shares Not Applicable | 18.10K | — |
| Total | 33K | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
33K
Market value
$39.23M
2/11/2026
—Completed
Units to sell
34K
Market value
$38.84M
2/10/2026
—Completed
Units to sell
54.92K
Market value
$64.32M
2/6/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
33K
Market value
$38.67M
2/12/2026
Total
Units
154.92K
Value
$181.07M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
2/11/2026 | 33K | $39.23M | — | Completed |
2/10/2026 | 34K | $38.84M | — | Completed |
2/6/2026 | 54.92K | $64.32M | — | Completed |
| Planned — Approximate Date | ||||
2/12/2026 | 33K | $38.67M | NASDAQ | Planned |
| Total | 154.92K | $181.07M | ||