Michael Hsing Insider Trading Activity

Corporate InsiderCEO · CIK 1308676

90

Total trades

$329.1M

Total volume

May 18, 2026

Last activity

MPWR

MONOLITHIC POWER SYSTEMS INC

Michael Hsing has been net-selling over the last 12 months with 0 purchases and 90 sales across 1 company.

MPWR is the most-traded position with 90 trades. The largest single transaction was a sale of MPWR for $64.3M on Feb 6, 2026.

Performance Scorecard

Forward stock performance after each transaction by Michael Hsing. 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.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days—+3.7%64%77
90 days—-27.4%0%77
120 days—-10.9%0%47

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

Showing the 50 most recent of 90 disclosed trades.

DATETICKERTYPESHARESPRICEVALUEROLE
May 18, 2026MPWRSell3,424$1462.61$5.0MCEO
May 18, 2026MPWRSell5,819$1467.62$8.5MCEO
May 18, 2026MPWRSell5,049$1472.84$7.4MCEO
May 18, 2026MPWRSell4,082$1476.96$6.0MCEO
May 18, 2026MPWRSell5,737$1482.51$8.5MCEO
May 18, 2026MPWRSell6,688$1486.76$9.9MCEO
May 18, 2026MPWRSell862$1491.48$1.3MCEO
May 18, 2026MPWRSell608$1499.46$912KCEO
May 18, 2026MPWRSell2,929$1503.05$4.4MCEO
May 18, 2026MPWRSell3,769$1507.70$5.7MCEO
May 18, 2026MPWRSell551$1513.11$834KCEO
May 18, 2026MPWRSell352$1518.15$534KCEO
May 18, 2026MPWRSell130$1521.43$198KCEO
Feb 12, 2026MPWRSell12,731$1155.71$14.7MCEO
Feb 12, 2026MPWRSell4,992$1159.84$5.8MCEO
Feb 12, 2026MPWRSell4,001$1164.92$4.7MCEO
Feb 12, 2026MPWRSell2,076$1168.80$2.4MCEO
Feb 12, 2026MPWRSell200$1173.39$235KCEO
Feb 12, 2026MPWRSell480$1180.79$567KCEO
Feb 12, 2026MPWRSell160$1188.23$190KCEO
Feb 12, 2026MPWRSell600$1194.34$717KCEO
Feb 12, 2026MPWRSell1,440$1200.81$1.7MCEO
Feb 12, 2026MPWRSell3,640$1205.82$4.4MCEO
Feb 12, 2026MPWRSell1,240$1210.11$1.5MCEO
Feb 11, 2026MPWRSell363$1158.71$421KCEO
Feb 11, 2026MPWRSell1,366$1163.71$1.6MCEO
Feb 11, 2026MPWRSell1,533$1167.62$1.8MCEO
Feb 11, 2026MPWRSell1,987$1172.92$2.3MCEO
Feb 11, 2026MPWRSell2,799$1177.67$3.3MCEO
Feb 11, 2026MPWRSell1,542$1182.82$1.8MCEO
Feb 11, 2026MPWRSell2,104$1188.17$2.5MCEO
Feb 11, 2026MPWRSell6,079$1192.67$7.3MCEO
Feb 11, 2026MPWRSell14,578$1197.20$17.5MCEO
Feb 11, 2026MPWRSell649$1202.28$780KCEO
Feb 10, 2026MPWRSell4,302$1132.01$4.9MCEO
Feb 10, 2026MPWRSell6,325$1136.75$7.2MCEO
Feb 10, 2026MPWRSell16,080$1141.88$18.4MCEO
Feb 10, 2026MPWRSell3,864$1145.90$4.4MCEO
Feb 10, 2026MPWRSell1,215$1151.11$1.4MCEO
Feb 10, 2026MPWRSell694$1154.96$802KCEO
Feb 10, 2026MPWRSell360$1161.41$418KCEO
Feb 10, 2026MPWRSell880$1176.04$1.0MCEO
Feb 10, 2026MPWRSell280$1197.26$335KCEO
Feb 6, 2026MPWRSell54,923$1171.16$64.3MCEO
Nov 12, 2025MPWRSell3,264$964.47$3.1MCEO
Nov 12, 2025MPWRSell403$957.58$386KCEO
Nov 12, 2025MPWRSell2,799$958.34$2.7MCEO
Nov 12, 2025MPWRSell440$959.36$422KCEO
Nov 12, 2025MPWRSell1,904$961.63$1.8MCEO
Nov 12, 2025MPWRSell2,817$962.61$2.7MCEO

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
MPWRMONOLITHIC POWER SYSTEMS INC90$329.1M

Other insiders at MONOLITHIC POWER SYSTEMS INC

7 other tracked filers at MPWR.

Theodore Blegen

CFO

68

Trades

Saria Tseng

VP

63

Trades

Maurice Sciammas

VP

40

Trades

Elmiger Eugen J

Director

13

Trades

Lee Victor K

Director

8

Trades

Xiao Deming

VP

6

Trades

Zhou Jeff

Director

6

Trades