Senior insider sale
Interim CFO at MONOLITHIC POWER SYSTEMS INC — senior position signals high conviction
$108.0K
89.00 shares
What this filing means
DEAN ROBERT W II plans to sell 89.00 shares of MONOLITHIC POWER SYSTEMS INC valued at approximately $108.0K. 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: 5/19/2026ACC: 0001280452-26-000008
Officer· Interim CFO
Since Feb 2026
89.00
Shares to sell
$108.0K
Approx. market value
4.00
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Time-based restricted stock units
N/A
5/15/2026
4.00Total acquired4.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/15/2026 | Time-based restricted stock units N/A | 4.00 | — |
| Total | 4.00 | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
85.00
Market value
$101.8K
2/23/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
4.00
Market value
$6.3K
5/18/2026
Total
Units
89.00
Value
$108.0K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
2/23/2026 | 85.00 | $101.8K | — | Completed |
| Planned — Approximate Date | ||||
5/18/2026 | 4.00 | $6.3K | NASDAQ | Planned |
| Total | 89.00 | $108.0K | ||