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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
July 1, 2019CEO10,960$139.56Sell$1,529,577.60
June 27, 2019VP7,979$131.09Sell$1,045,967.11
June 24, 2019VP2,722$128.63Sell$350,130.86
June 10, 2019VP5,203$130.00Sell$676,390.00
May 30, 2019Director10,000$118.31Sell$1,183,100.00
May 21, 2019VP19,883$121.98Sell$2,425,328.34
May 20, 2019CFO51$121.80Sell$6,211.80
May 16, 2019Insider3,474$129.50Sell$449,883.00
May 13, 2019Director15,000$129.18Sell$1,937,700.00
May 8, 2019CFO1,681$138.03Sell$232,028.43
May 8, 2019VP2,847$138.03Sell$392,971.41
May 8, 2019Insider2,470$138.03Sell$340,934.10
May 8, 2019CEO8,447$138.03Sell$1,165,939.41
May 3, 2019VP3,144$144.49Sell$454,276.56
May 3, 2019CEO10,354$144.49Sell$1,496,049.46
April 22, 2019CFO1,047$152.89Sell$160,075.83
April 18, 2019VP6,495$155.33Sell$1,008,868.35
April 8, 2019Director15,000$143.93Sell$2,158,950.00
April 4, 2019CEO16,540$144.20Sell$2,385,068.00
April 3, 2019VP3,008$142.00Sell$427,136.00
April 1, 2019CFO905$138.60Sell$125,433.00
April 1, 2019VP14,470$137.25Sell$1,986,007.50
April 1, 2019Insider4,305$138.60Sell$596,673.00
April 1, 2019CEO12,205$138.28Sell$1,687,707.40
March 28, 2019VP4,181$134.62Sell$562,846.22
March 28, 2019CEO1,245$135.51Sell$168,709.95
March 21, 2019VP3,563$145.00Sell$516,635.00
March 11, 2019Director15,000$137.01Sell$2,055,150.00
Feb. 27, 2019CEO75,241$136.26Sell$10,252,338.66
Feb. 25, 2019Insider13,979$138.74Sell$1,939,446.46
Feb. 25, 2019CEO19,000$137.55Sell$2,613,450.00
Feb. 21, 2019Director10,000$134.66Sell$1,346,600.00
Feb. 20, 2019VP22,403$136.93Sell$3,067,642.79
Feb. 12, 2019Insider21,308$130.66Sell$2,784,103.28
Feb. 12, 2019CFO12,656$130.66Sell$1,653,632.96
Feb. 12, 2019VP23,020$130.66Sell$3,007,793.20
Feb. 12, 2019CEO72,851$130.66Sell$9,518,711.66
Feb. 4, 2019VP4,615$129.59Sell$598,057.85
Feb. 4, 2019Insider3,623$129.59Sell$469,504.57
Feb. 4, 2019CEO14,516$129.59Sell$1,881,128.44
Jan. 22, 2019CFO899$123.50Sell$111,026.50
Jan. 14, 2019Director15,000$120.59Sell$1,808,850.00
Dec. 10, 2018Director15,000$120.16Sell$1,802,400.00
Dec. 3, 2018CEO35,171$134.77Sell$4,739,995.67
Nov. 26, 2018Director10,000$126.18Sell$1,261,800.00
Nov. 16, 2018VP5,641$126.45Sell$713,304.45
Nov. 5, 2018Insider4,819$121.73Sell$586,616.87
Nov. 5, 2018VP5,808$121.73Sell$707,007.84
Nov. 5, 2018CEO15,867$121.73Sell$1,931,489.91
Oct. 22, 2018CFO1,088$114.61Sell$124,695.68
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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.