DEAN ROBERT W II

PrivateCIK: 1445300
Location

PALO ALTO, CA

DEAN ROBERT W II (Interim CFO) sold 1.5% of their position (105.00 shares) of MONOLITHIC POWER SYSTEMS, INC. on the open market

Open‑market sale worth $141.1K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderDEAN ROBERT W IICIK 1445300
Officer· Interim CFO
Since Feb 2026
-105.00
Net shares
Net seller
$141.1K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
105.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

105.00

Price / share

$1.34K

Trade value

$141.15K

% of position

1.5%
8/5/2026
7.24K7.13K
Total

Net shares

105.00

Net value

-$141.15K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned65.00
Total
65.00 indirect65.00
Derivative Holdings (Post-Transaction)0
No derivative holdings reported