Companies / Monolithic Power Systems Inc / Activity

Activity — Monolithic Power Systems Inc

166 moves.

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InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
May 29, 2026Sciammas Maurice
Executive
GiftCommon Stock$0-12K
-49.70%
12,625
0.03% of shares
low
May 22, 2026Tseng Saria
Executive
GiftCommon Stock$0-200
-0.13%
156,783
0.32% of shares
low
May 13, 2026Sciammas Maurice
Executive
GiftCommon Stock$0+2K
+3.16%
51,023
0.10% of shares
low
May 13, 2026Sciammas Maurice
Executive
GiftCommon Stock$0-2K
-5.86%
25,097
0.05% of shares
low
May 13, 2026Dean Robert W II
Executive
OtherCommon Stock$0-2K
-26.75%
5,904
0.01% of shares
low
Feb 3, 2026Wynne Eileen
Director
GrantCommon Stock$0+189
+16.39%
1,342
<0.01% of shares
low
Feb 3, 2026Elmiger Eugen J
Director
GrantCommon Stock$0+189
+1.10%
17,402
0.04% of shares
low
Feb 3, 2026Zhou Jeff
Director
GrantCommon Stock$0+189
+3.37%
5,800
0.01% of shares
low
Feb 3, 2026Blegen Theodore
Executive
GrantCommon Stock$0+39K
+59.30%
104,078
0.21% of shares
low
Feb 3, 2026Sciammas Maurice
Executive
GrantCommon Stock$0+57K
+39.61%
201,500
0.41% of shares
low
Feb 3, 2026Tseng Saria
Executive
GrantCommon Stock$0+57K
+34.37%
223,501
0.45% of shares
low
Feb 3, 2026Hsing Michael
CEO
GrantCommon Stock$0+137K
+15.10%
1,043,157
2.12% of shares
low
Feb 3, 2026Xiao Deming
Executive
GrantCommon Stock$0+57K
+28.35%
258,807
0.53% of shares
low
Feb 3, 2026Lee Victor K
Director
GrantCommon Stock$0+189
+0.68%
28,156
0.06% of shares
low
Feb 3, 2026Chang Kuo Wei Herbert
Director
GrantCommon Stock$0+189
+44.37%
615
<0.01% of shares
low
Feb 3, 2026Martinez Carintia
Director
GrantCommon Stock$0+189
+21.53%
1,067
<0.01% of shares
low
May 18, 2026Dean Robert W II
Executive
SellCommon Stock$6.3K-4
-0.07%
5,900
0.01% of shares
low
Mar 20, 2026Sciammas Maurice
Executive
SellCommon Stock$32.9K-30
-2.31%
1,269
<0.01% of shares
low
Apr 1, 2026Sciammas Maurice
Executive
SellCommon Stock$33.5K-30
-2.36%
1,239
<0.01% of shares
low
May 26, 2026Dean Robert W II
Executive
SellCommon Stock$36.3K-22
-0.37%
5,878
0.01% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$37.4K-40
-0.06%
70,938
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$37.6K-40
-0.06%
70,121
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$37.8K-40
-0.06%
68,412
0.14% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$44.7K-40
-0.06%
68,072
0.14% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$44.9K-40
-0.06%
67,952
0.14% of shares
low
Jun 1, 2026Sciammas Maurice
Executive
SellCommon Stock$46.0K-30
-2.48%
1,179
<0.01% of shares
low
May 4, 2026Sciammas Maurice
Executive
SellCommon Stock$47.7K-30
-2.42%
1,209
<0.01% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$69.7K-74
-0.11%
69,641
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$74.2K-80
-0.11%
71,252
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$74.7K-80
-0.11%
70,978
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$74.8K-80
-0.11%
70,858
0.14% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$75.7K-80
-0.12%
68,332
0.14% of shares
low
May 15, 2026Sciammas Maurice
Executive
SellCommon Stock$79.3K-50
-0.03%
166,644
0.34% of shares
low
Mar 30, 2026Tseng Saria
Executive
SellCommon Stock$83.3K-80
-0.05%
174,982
0.36% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$89.7K-80
-0.12%
67,992
0.14% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$90.2K-80
-0.12%
67,672
0.14% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$91.0K-80
-0.12%
65,412
0.13% of shares
low
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$91.2K-80
-0.12%
65,333
0.13% of shares
low
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$110.0K-117
-0.17%
70,161
0.14% of shares
medium
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$112.4K-120
-0.17%
70,738
0.14% of shares
medium
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$136.3K-120
-0.18%
65,612
0.13% of shares
medium
Feb 2, 2026Blegen Theodore
Executive
SellCommon Stock$136.4K-120
-0.18%
65,492
0.13% of shares
medium
Apr 8, 2026Tseng Saria
Executive
SellCommon Stock$154.5K-120
-0.07%
164,666
0.34% of shares
medium
Apr 8, 2026Tseng Saria
Executive
SellCommon Stock$158.6K-120
-0.08%
156,983
0.32% of shares
medium
Mar 30, 2026Tseng Saria
Executive
SellCommon Stock$171.9K-166
-0.09%
175,062
0.36% of shares
medium
Jan 2, 2026Blegen Theodore
Executive
SellCommon Stock$180.6K-194
-0.27%
71,058
0.14% of shares
medium
Apr 1, 2026Tseng Saria
Executive
SellCommon Stock$181.5K-160
-0.09%
174,062
0.35% of shares
medium
Feb 12, 2026Hsing Michael
CEO
SellCommon Stock$190.1K-160
-0.02%
896,594
1.82% of shares
medium
May 18, 2026Hsing Michael
CEO
SellCommon Stock$197.8K-130
-0.02%
848,263
1.73% of shares
medium
Apr 1, 2026Tseng Saria
Executive
SellCommon Stock$208.3K-184
-0.11%
174,222
0.35% of shares
medium
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