Saria Tseng Insider Trading Activity

Corporate InsiderVP · CIK 1312593

63

Total trades

$143.1M

Total volume

Apr 8, 2026

Last activity

MPWR

MONOLITHIC POWER SYSTEMS INC

Saria Tseng has been net-selling over the last 12 months with 0 purchases and 63 sales across 1 company.

MPWR is the most-traded position with 63 trades. The largest single transaction was a sale of MPWR for $26.8M on Feb 6, 2026.

Performance Scorecard

Forward stock performance after each transaction by Saria Tseng. 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—-19.1%8%63
90 days—-26.4%15%33
120 days—-19.8%0%33

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

Price & Trades

Pro: Trade Markers

MPWR · MONOLITHIC POWER SYSTEMS INC

🔒 Subscribe to see trade entries

Pro members see exactly when Saria Tseng bought and sold MPWR.

Upgrade to Pro

Recent Trades

Showing the 50 most recent of 63 disclosed trades.

DATETICKERTYPESHARESPRICEVALUEROLE
Apr 8, 2026MPWRSell4,244$1312.82$5.6MVP
Apr 8, 2026MPWRSell1,279$1308.30$1.7MVP
Apr 8, 2026MPWRSell800$1302.52$1.0MVP
Apr 8, 2026MPWRSell400$1292.08$517KVP
Apr 8, 2026MPWRSell120$1287.12$154KVP
Apr 8, 2026MPWRSell240$1279.55$307KVP
Apr 8, 2026MPWRSell360$1270.29$457KVP
Apr 8, 2026MPWRSell840$1319.25$1.1MVP
Apr 8, 2026MPWRSell560$1266.48$709KVP
Apr 6, 2026MPWRSell556$1144.42$636KVP
Apr 6, 2026MPWRSell480$1149.05$552KVP
Apr 6, 2026MPWRSell560$1159.62$649KVP
Apr 6, 2026MPWRSell684$1165.66$797KVP
Apr 6, 2026MPWRSell2,036$1170.38$2.4MVP
Apr 6, 2026MPWRSell1,680$1176.35$2.0MVP
Apr 6, 2026MPWRSell1,396$1179.50$1.6MVP
Apr 6, 2026MPWRSell244$1139.96$278KVP
Apr 1, 2026MPWRSell184$1132.15$208KVP
Apr 1, 2026MPWRSell160$1134.14$181KVP
Apr 1, 2026MPWRSell188$1135.91$214KVP
Apr 1, 2026MPWRSell292$1136.99$332KVP
Apr 1, 2026MPWRSell576$1131.24$652KVP
Mar 30, 2026MPWRSell5,154$1000.81$5.2MVP
Mar 30, 2026MPWRSell3,360$1009.63$3.4MVP
Mar 30, 2026MPWRSell9,080$1005.18$9.1MVP
Mar 30, 2026MPWRSell3,194$1017.22$3.2MVP
Mar 30, 2026MPWRSell2,200$1023.00$2.3MVP
Mar 30, 2026MPWRSell2,440$1029.21$2.5MVP
Mar 30, 2026MPWRSell166$1035.60$172KVP
Mar 30, 2026MPWRSell80$1041.12$83KVP
Feb 6, 2026MPWRSell22,875$1171.16$26.8MVP
Nov 26, 2025MPWRSell2,238$929.29$2.1MVP
Nov 26, 2025MPWRSell984$928.60$914KVP
Nov 26, 2025MPWRSell1,845$927.41$1.7MVP
Nov 26, 2025MPWRSell10,360$926.02$9.6MVP
Nov 26, 2025MPWRSell1,126$925.55$1.0MVP
Nov 26, 2025MPWRSell1,327$924.32$1.2MVP
Nov 26, 2025MPWRSell1,200$923.54$1.1MVP
Nov 26, 2025MPWRSell240$922.78$221KVP
Nov 26, 2025MPWRSell680$930.48$633KVP
Nov 25, 2025MPWRSell240$912.30$219KVP
Nov 25, 2025MPWRSell385$894.54$344KVP
Nov 25, 2025MPWRSell1,625$895.63$1.5MVP
Nov 25, 2025MPWRSell2,066$896.37$1.9MVP
Nov 25, 2025MPWRSell754$897.54$677KVP
Nov 25, 2025MPWRSell145$898.38$130KVP
Nov 25, 2025MPWRSell320$899.37$288KVP
Nov 25, 2025MPWRSell346$900.41$312KVP
Nov 25, 2025MPWRSell880$901.58$793KVP
Nov 25, 2025MPWRSell120$902.07$108KVP

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
MPWRMONOLITHIC POWER SYSTEMS INC63$143.1M

Other insiders at MONOLITHIC POWER SYSTEMS INC

7 other tracked filers at MPWR.

Michael Hsing

CEO

90

Trades

Theodore Blegen

CFO

68

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