DEAN ROBERT W II

PrivateCIK: 1445300
Location

PALO ALTO, CA

DEAN ROBERT W II (Interim CFO) sold 0.1% of their position (4.00 shares) of MONOLITHIC POWER SYSTEMS INC on the open market

Open‑market sale worth $6.3K — 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
-4.00
Net shares
Net seller
$6.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
4.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

4.00

Price / share

$1.56K

Trade value

$6.25K

% of position

0.1%
5/18/2026
5.90K5.90K
Total

Net shares

4.00

Net value

-$6.25K

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
DEAN ROBERT W II — Insider Transaction (Form 4) Filed May 20, 2026 | Finecho