Lee Victor K Insider Trading Activity

Corporate InsiderDirector · CIK 1292133

Total trades

$2.0M

Total volume

Feb 9, 2026

Last activity

MPWR

MONOLITHIC POWER SYSTEMS INC

Lee Victor K has been net-selling over the last 12 months with 0 purchases and 8 sales across 1 company.

MPWR is the most-traded position with 8 trades. The largest single transaction was a sale of MPWR for $559K on Jan 2, 2026.

Performance Scorecard

Forward stock performance after each transaction by Lee Victor K. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	-10.6%	13%	8
90 days	—	-18.9%	0%	8
120 days	—	-62.3%	0%	8

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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MPWR · MONOLITHIC POWER SYSTEMS INC

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
Feb 9, 2026	MPWR	Sell	400	$1212.16	$485K	−1.4%	Director
Jan 2, 2026	MPWR	Sell	600	$930.86	$559K	−2.1%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	197	$949.70	$187K	−0.7%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	280	$950.64	$266K	−1.0%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	160	$951.60	$152K	−0.6%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	83	$952.37	$79K	−0.3%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	200	$953.70	$191K	−0.7%	Director
Dec 24, 2025 Filed 3d late	MPWR	Sell	80	$955.08	$76K	−0.3%	Director