Senior insider sale
Interim CFO at MONOLITHIC POWER SYSTEMS, INC. — senior position signals high conviction
$191.4K
137.00 shares
What this filing means
DEAN ROBERT W II plans to sell 137.00 shares of MONOLITHIC POWER SYSTEMS, INC. valued at approximately $191.4K. 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: 8/17/2026ACC: 0001280452-26-000014
Officer· Interim CFO
Since Feb 2026
137.00
Shares to sell
$191.4K
Approx. market value
6.00
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Time-based restricted stock units
N/A
8/15/2026
6.00Total acquired6.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
8/15/2026 | Time-based restricted stock units N/A | 6.00 | — |
| Total | 6.00 | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
105.00
Market value
$141.1K
8/5/2026
—Completed
Units to sell
22.00
Market value
$35.9K
5/26/2026
—Completed
Units to sell
4.00
Market value
$6.3K
5/18/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
6.00
Market value
$8.1K
8/17/2026
Total
Units
137.00
Value
$191.4K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
8/5/2026 | 105.00 | $141.1K | — | Completed |
5/26/2026 | 22.00 | $35.9K | — | Completed |
5/18/2026 | 4.00 | $6.3K | — | Completed |
| Planned — Approximate Date | ||||
8/17/2026 | 6.00 | $8.1K | NASDAQ | Planned |
| Total | 137.00 | $191.4K | ||