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Monolithic Power Systems Inc (MPWR) Insider Trading

Total insider buys:
  • $0.00
Total insider sells:
  • $1,313,546,620.34
Most recent insider trade:
  • Sept. 18, 2025
Most active insider trader:
  • Michael Hsing
Trader NameDateTitleAmountPriceTypeTotal Value
Oct. 6, 2015VP8,284$54.08Sell$447,998.72
Oct. 5, 2015Insider89$52.00Sell$4,628.00
June 16, 2015Insider70$53.26Sell$3,728.20
May 18, 2015CFO4,142$54.23Sell$224,620.66
May 18, 2015Director5,705$53.30Sell$304,076.50
May 15, 2015Director8,000$52.76Sell$422,080.00
May 12, 2015VP4,490$51.87Sell$232,896.30
May 11, 2015Insider10,220$52.05Sell$531,951.00
May 6, 2015Insider3,377$51.36Sell$173,442.72
May 6, 2015VP4,051$51.68Sell$209,355.68
May 6, 2015CFO3,300$51.68Sell$170,544.00
May 6, 2015CEO12,632$51.73Sell$653,453.36
May 5, 2015CEO2,679$52.54Sell$140,754.66
May 5, 2015CFO587$52.54Sell$30,840.98
May 5, 2015Insider1,544$52.54Sell$81,121.76
May 5, 2015VP718$52.54Sell$37,723.72
May 4, 2015Insider7,451$52.08Sell$388,048.08
May 4, 2015CFO282$52.70Sell$14,861.40
May 4, 2015CEO1,162$52.70Sell$61,237.40
May 4, 2015VP353$52.70Sell$18,603.10
April 23, 2015Insider27,070$54.00Sell$1,461,780.00
April 23, 2015CFO19,773$53.21Sell$1,052,121.33
April 14, 2015Director9,200$51.83Sell$476,836.00
April 13, 2015Director4,600$52.12Sell$239,752.00
April 9, 2015CEO7,025$52.01Sell$365,370.25
April 8, 2015CEO72,404$52.03Sell$3,767,180.12
April 6, 2015Insider97$51.28Sell$4,974.16
April 2, 2015CEO130,560$52.01Sell$6,790,425.60
March 30, 2015Insider10,696$53.00Sell$566,888.00
March 20, 2015Director9,200$55.18Sell$507,656.00
March 16, 2015Insider259$53.16Sell$13,768.44
Feb. 24, 2015Director5,000$52.50Sell$262,500.00
Feb. 20, 2015Director9,200$51.04Sell$469,568.00
Feb. 19, 2015Director15,705$50.96Sell$800,326.80
Feb. 19, 2015VP28,441$50.67Sell$1,441,105.47
Feb. 13, 2015Director5,000$50.25Sell$251,250.00
Feb. 9, 2015CFO5,248$47.50Sell$249,280.00
Feb. 9, 2015VP2,234$47.51Sell$106,137.34
Feb. 9, 2015CEO6,629$47.51Sell$314,943.79
Feb. 9, 2015Insider2,748$47.51Sell$130,557.48
Feb. 5, 2015CFO19,153$47.75Sell$914,555.75
Feb. 5, 2015CEO70,260$47.80Sell$3,358,428.00
Feb. 5, 2015VP23,005$47.78Sell$1,099,178.90
Feb. 3, 2015Insider27,106$47.75Sell$1,294,311.50
Jan. 9, 2015Director9,200$48.03Sell$441,876.00
Dec. 11, 2014Director17,700$41.27Sell$730,479.00
Nov. 26, 2014VP3,863$48.10Sell$185,810.30
Nov. 25, 2014Director9,200$46.86Sell$431,112.00
Nov. 24, 2014Director4,600$46.77Sell$215,142.00
Nov. 21, 2014Insider5,031$46.80Sell$235,450.80
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  • Insiders are selling Monolithic Power Systems Inc stock.

  • The insider traders at Monolithic Power Systems Inc are: Michael Hsing, Deming Xiao, Theodore Blegen, Maurice Sciammas, Saria Tseng, James C Moyer, Meera Rao, Jeff Zhou, Kuo Wei Herbert Chang, James Moyer, Victor K Lee, James C. Moyer, Victor K. Lee, Pilkington Karen A Smith-, Pilkington Karen Smith-, Victor Lee, Douglas Mcburnie, and Carintia Martinez

  • The most active insider trader at Monolithic Power Systems Inc is Michael Hsing with 147 trades.

  • Michael Hsing has sold the most Monolithic Power Systems Inc stock with a total value of $543,931,184.02.

  • The most recent insider trade for Monolithic Power Systems Inc was on Sept. 18, 2025.

  • The single biggest insider sell for Monolithic Power Systems Inc was from Michael Hsing with a total value of $34,203,493.56 on Jan. 4, 2024.