MONOLITHIC POWER SYSTEMS, INC. (MPWR)

Nasdaq · Semiconductors & Related Devices · Inc. DE

What they're doing

Not enough recent activity to summarise.

Signals, last 12 months

  1. Large insider sale
    Tseng Saria (officer) sold $12.9M of stock
  2. Large insider sale
    Tseng Saria (officer) sold $7.9M of stock
  3. Large insider sale
    Hsing Michael (director) sold $9.9M of stock
  4. Large insider sale
    Hsing Michael (director) sold $8.5M of stock
  5. Large insider sale
    Hsing Michael (director) sold $8.5M of stock
  6. Large insider sale
    Hsing Michael (director) sold $7.4M of stock
  7. Large insider sale
    Hsing Michael (director) sold $5.7M of stock
  8. Large insider sale
    Hsing Michael (director) sold $6.0M of stock
  9. Large insider sale
    Hsing Michael (director) sold $5.0M of stock
  10. Large insider sale
    Hsing Michael (director) sold $4.4M of stock
  11. Large insider sale
    Hsing Michael (director) sold $1.3M of stock
  12. Large insider sale
    Sciammas Maurice (officer) sold $5.8M of stock
  13. Large insider sale
    Sciammas Maurice (officer) sold $3.1M of stock
  14. Large insider sale
    Sciammas Maurice (officer) sold $3.2M of stock
  15. Large insider sale
    Sciammas Maurice (officer) sold $2.7M of stock
  16. Large insider sale
    Sciammas Maurice (officer) sold $2.1M of stock
  17. Large insider sale
    Sciammas Maurice (officer) sold $1.1M of stock
  18. Large insider sale
    Xiao Deming (officer) sold $23.4M of stock
  19. Large insider sale
    Xiao Deming (officer) sold $19.2M of stock
  20. Large insider sale
    Xiao Deming (officer) sold $5.5M of stock
  21. Large insider sale
    Elmiger Eugen J (director) sold $4.1M of stock
  22. Large insider sale
    Elmiger Eugen J (director) sold $4.2M of stock
  23. Large insider sale
    Elmiger Eugen J (director) sold $3.0M of stock
  24. Large insider sale
    Elmiger Eugen J (director) sold $2.2M of stock
  25. Large insider sale
    Elmiger Eugen J (director) sold $1.7M of stock
  26. Large insider sale
    Xiao Deming (officer) sold $1.5M of stock
  27. Large insider sale
    Elmiger Eugen J (director) sold $1.3M of stock
  28. Large insider sale
    Elmiger Eugen J (director) sold $1.3M of stock
  29. Large insider sale
    Tseng Saria (officer) sold $5.6M of stock
  30. Large insider sale
    Tseng Saria (officer) sold $1.7M of stock
  31. Large insider sale
    Tseng Saria (officer) sold $1.1M of stock
  32. Large insider sale
    Tseng Saria (officer) sold $1.0M of stock
  33. Large insider sale
    Tseng Saria (officer) sold $2.4M of stock
  34. Large insider sale
    Tseng Saria (officer) sold $2.0M of stock
  35. Large insider sale
    Tseng Saria (officer) sold $1.6M of stock
  36. Large insider sale
    Tseng Saria (officer) sold $9.1M of stock
  37. Large insider sale
    Tseng Saria (officer) sold $5.2M of stock
  38. Large insider sale
    Tseng Saria (officer) sold $3.2M of stock
  39. Large insider sale
    Tseng Saria (officer) sold $3.4M of stock
  40. Large insider sale
    Tseng Saria (officer) sold $2.5M of stock
  41. Large insider sale
    Tseng Saria (officer) sold $2.3M of stock
  42. Large insider sale
    Hsing Michael (director) sold $14.7M of stock
  43. Large insider sale
    Hsing Michael (director) sold $5.8M of stock
  44. Large insider sale
    Hsing Michael (director) sold $4.7M of stock
  45. Large insider sale
    Hsing Michael (director) sold $4.4M of stock
  46. Large insider sale
    Hsing Michael (director) sold $2.4M of stock
  47. Large insider sale
    Hsing Michael (director) sold $1.7M of stock
  48. Large insider sale
    Hsing Michael (director) sold $1.8M of stock
  49. Large insider sale
    Hsing Michael (director) sold $1.5M of stock
  50. Large insider sale
    Hsing Michael (director) sold $17.5M of stock
  51. Large insider sale
    Hsing Michael (director) sold $7.3M of stock
  52. Large insider sale
    Hsing Michael (director) sold $3.3M of stock
  53. Large insider sale
    Hsing Michael (director) sold $2.5M of stock
  54. Large insider sale
    Hsing Michael (director) sold $2.3M of stock
  55. Large insider sale
    Hsing Michael (director) sold $1.8M of stock
  56. Large insider sale
    Hsing Michael (director) sold $1.8M of stock
  57. Large insider sale
    Hsing Michael (director) sold $1.6M of stock
  58. Large insider sale
    Hsing Michael (director) sold $18.4M of stock
  59. Large insider sale
    Hsing Michael (director) sold $7.2M of stock
  60. Large insider sale
    Hsing Michael (director) sold $4.9M of stock
  61. Large insider sale
    Hsing Michael (director) sold $4.4M of stock
  62. Large insider sale
    Hsing Michael (director) sold $1.4M of stock
  63. Large insider sale
    Hsing Michael (director) sold $1.0M of stock
  64. Large insider sale
    Hsing Michael (director) sold $64.3M of stock
  65. Large insider sale
    Sciammas Maurice (officer) sold $26.8M of stock
  66. Large insider sale
    Tseng Saria (officer) sold $26.8M of stock
  67. Large insider sale
    BLEGEN THEODORE (officer) sold $25.4M of stock
  68. Large insider sale
    Xiao Deming (officer) sold $26.8M of stock
  69. Material 8-K filing
    Filed 8-K disclosing director or officer change
  70. Large insider sale
    BLEGEN THEODORE (officer) sold $1.8M of stock
  71. Large insider sale
    Tseng Saria (officer) sold $9.6M of stock
  72. Large insider sale
    Tseng Saria (officer) sold $2.1M of stock
  73. Large insider sale
    Tseng Saria (officer) sold $1.7M of stock
  74. Large insider sale
    Tseng Saria (officer) sold $1.1M of stock
  75. Large insider sale
    Tseng Saria (officer) sold $1.2M of stock
  76. Large insider sale
    Tseng Saria (officer) sold $1.0M of stock
  77. Large insider sale
    Tseng Saria (officer) sold $9.3M of stock
  78. Large insider sale
    Tseng Saria (officer) sold $1.9M of stock
  79. Large insider sale
    Tseng Saria (officer) sold $1.5M of stock
  80. Large insider sale
    Sciammas Maurice (officer) sold $3.6M of stock
  81. Large insider sale
    Sciammas Maurice (officer) sold $5.8M of stock
  82. Large insider sale
    Sciammas Maurice (officer) sold $3.0M of stock
  83. Large insider sale
    Sciammas Maurice (officer) sold $3.3M of stock
  84. Large insider sale
    Sciammas Maurice (officer) sold $2.2M of stock
  85. Large insider sale
    Sciammas Maurice (officer) sold $1.6M of stock
  86. Large insider sale
    Sciammas Maurice (officer) sold $1.7M of stock
  87. Large insider sale
    Sciammas Maurice (officer) sold $1.7M of stock
  88. Large insider sale
    Sciammas Maurice (officer) sold $1.9M of stock
  89. Large insider sale
    Sciammas Maurice (officer) sold $1.5M of stock
  90. Large insider sale
    Sciammas Maurice (officer) sold $1.6M of stock
  91. Large insider sale
    Sciammas Maurice (officer) sold $1.0M of stock
  92. Large insider sale
    Hsing Michael (director) sold $6.3M of stock
  93. Large insider sale
    Hsing Michael (director) sold $5.4M of stock
  94. Large insider sale
    Hsing Michael (director) sold $2.9M of stock
  95. Large insider sale
    Hsing Michael (director) sold $3.4M of stock
  96. Large insider sale
    Hsing Michael (director) sold $3.1M of stock
  97. Large insider sale
    Hsing Michael (director) sold $2.7M of stock
  98. Large insider sale
    Hsing Michael (director) sold $2.7M of stock
  99. Large insider sale
    Hsing Michael (director) sold $2.0M of stock
  100. Large insider sale
    Hsing Michael (director) sold $1.8M of stock
  101. Large insider sale
    Hsing Michael (director) sold $7.6M of stock
  102. Large insider sale
    Hsing Michael (director) sold $3.9M of stock
  103. Large insider sale
    Hsing Michael (director) sold $4.0M of stock
  104. Large insider sale
    Hsing Michael (director) sold $3.8M of stock
  105. Large insider sale
    Hsing Michael (director) sold $3.7M of stock
  106. Large insider sale
    Hsing Michael (director) sold $2.6M of stock
  107. Large insider sale
    Hsing Michael (director) sold $2.4M of stock
  108. Large insider sale
    Hsing Michael (director) sold $2.8M of stock
  109. Large insider sale
    Hsing Michael (director) sold $1.8M of stock
  110. Large insider sale
    Hsing Michael (director) sold $1.4M of stock
  111. Large insider sale
    Hsing Michael (director) sold $1.2M of stock
  112. Large insider sale
    Tseng Saria (officer) sold $1.4M of stock
  113. Large insider sale
    Tseng Saria (officer) sold $1.4M of stock
  114. Large insider sale
    Tseng Saria (officer) sold $1.5M of stock
  115. Large insider sale
    Tseng Saria (officer) sold $14.3M of stock

Insider transactions

DateInsiderRoleCodeSharesPriceValue
2026-06-01Sciammas MauriceofficerS301,533.95$46,019
2026-05-29Sciammas MauriceofficerG12,4720$0
2026-05-27Tseng SariaofficerS7,5651,700$12,860,500
2026-05-26DEAN ROBERT W IIofficerS221,649.56$36,290
2026-05-26Zhou JeffdirectorS4861,680$816,480
2026-05-22Tseng SariaofficerS5,0001,586.43$7,932,150
2026-05-22Tseng SariaofficerG2000$0
2026-05-18Hsing MichaeldirectorS3,4241,462.61$5,007,977
2026-05-18Hsing MichaeldirectorS5,8191,467.62$8,540,081
2026-05-18Hsing MichaeldirectorS5,0491,472.84$7,436,369
2026-05-18Hsing MichaeldirectorS4,0821,476.96$6,028,951
2026-05-18Hsing MichaeldirectorS5,7371,482.51$8,505,160
2026-05-18Hsing MichaeldirectorS6,6881,486.76$9,943,451
2026-05-18Hsing MichaeldirectorS1301,521.43$197,786
2026-05-18Hsing MichaeldirectorS6081,499.46$911,672
2026-05-18Hsing MichaeldirectorS2,9291,503.05$4,402,433
2026-05-18Hsing MichaeldirectorS3,7691,507.7$5,682,521
2026-05-18Hsing MichaeldirectorS5511,513.11$833,724
2026-05-18Hsing MichaeldirectorS3521,518.15$534,389
2026-05-18Hsing MichaeldirectorS8621,491.48$1,285,656
2026-05-18DEAN ROBERT W IIofficerS41,563.28$6,253
2026-05-15Sciammas MauriceofficerS2,0101,562.01$3,139,640
2026-05-15Sciammas MauriceofficerS2,0201,567.15$3,165,643
2026-05-15Sciammas MauriceofficerS1,3121,571.49$2,061,795
2026-05-15Sciammas MauriceofficerS7031,577.75$1,109,158
2026-05-15Sciammas MauriceofficerS3,7411,550.36$5,799,897
2026-05-15Sciammas MauriceofficerS4471,582.21$707,248
2026-05-15Sciammas MauriceofficerS501,585.51$79,276
2026-05-15Sciammas MauriceofficerS1,7171,557.48$2,674,193
2026-05-13Sciammas MauriceofficerG1,5630$0
2026-05-13Sciammas MauriceofficerG1,5630$0
2026-05-13DEAN ROBERT W IIofficerJ2,1560$0
2026-05-06Elmiger Eugen JdirectorS3201,559.88$499,162
2026-05-06Elmiger Eugen JdirectorS8141,566.36$1,275,017
2026-05-06Elmiger Eugen JdirectorS1,0781,571.58$1,694,163
2026-05-06Elmiger Eugen JdirectorS8341,575.57$1,314,025
2026-05-06Elmiger Eugen JdirectorS5141,600.14$822,472
2026-05-06Elmiger Eugen JdirectorS2,5871,586.81$4,105,077
2026-05-06Elmiger Eugen JdirectorS1,3551,591.38$2,156,320
2026-05-06Elmiger Eugen JdirectorS2,6191,596.42$4,181,024
2026-05-06Elmiger Eugen JdirectorS1,8791,581.81$2,972,221
2026-05-06Xiao DemingofficerS3,3291,648.38$5,487,457
2026-05-06Xiao DemingofficerS9071,661.38$1,506,872
2026-05-06Xiao DemingofficerS11,5971,657.93$19,227,014
2026-05-06Xiao DemingofficerS14,1671,652.8$23,415,218
2026-05-06Wynne EileendirectorS3351,582.68$530,198
2026-05-06Zhou JeffdirectorS5001,650$825,000
2026-05-05Zhou JeffdirectorS5001,600$800,000
2026-05-05Zhou JeffdirectorS5141,574.48$809,283
2026-05-05Sciammas MauriceofficerS3801,583.81$601,848

Federal contracts

No federal contract actions on record for this recipient mapping.

Lobbying

No federal lobbying filings on record for this client mapping.

Public attention

7-day average 76 views/day vs 90-day median 78.

Recent filings

  • 2026-09-10 8-K
  • 2026-09-02 4
  • 2026-08-26 4
  • 2026-08-25 4
  • 2026-08-24 144
  • 2026-08-19 4
  • 2026-08-17 144
  • 2026-08-13 4
  • 2026-08-11 144
  • 2026-08-06 4
  • 2026-08-06 4
  • 2026-08-05 4
  • 2026-08-05 144
  • 2026-08-05 10-Q
  • 2026-07-30 8-K
  • 2026-07-28 4
  • 2026-07-17 4
  • 2026-07-15 144
  • 2026-07-08 SCHEDULE 13G/A
  • 2026-07-06 4