Group One Trading’s Monolithic Power Systems MPWR Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q4 | – | Sell |
-1,000
| Closed | -$921K | – | 8778 |
|
|
2025
Q3 | $921K | Buy |
+1,000
| New | +$811K | ﹤0.01% | 3119 |
|
|
2025
Q2 | – | Sell |
-100
| Closed | -$58K | – | 8378 |
|
|
2025
Q1 | $58K | Sell |
100
-1,900
| -95% | -$1.2M | ﹤0.01% | 5046 |
|
|
2024
Q4 | $1.18M | Sell |
2,000
-300
| -13% | -$217K | ﹤0.01% | 2409 |
|
|
2024
Q3 | $2.13M | Sell |
2,300
-13,700
| -86% | -$11.8M | 0.01% | 1670 |
|
|
2024
Q2 | $13.1M | Sell |
16,000
-2,100
| -12% | -$1.52M | 0.05% | 317 |
|
|
2024
Q1 | $12.3M | Sell |
18,100
-600
| -3% | -$401K | 0.05% | 357 |
|
|
2023
Q4 | $11.8M | Buy |
18,700
+16,700
| +835% | +$8.72M | 0.03% | 605 |
|
|
2023
Q3 | $924K | Sell |
2,000
-15,800
| -89% | -$8.08M | ﹤0.01% | 2340 |
|
|
2023
Q2 | $9.62M | Buy |
17,800
+15,600
| +709% | +$7.41M | 0.03% | 533 |
|
|
2023
Q1 | $1.1M | Sell |
2,200
-10,900
| -83% | -$5.01M | ﹤0.01% | 2053 |
|
|
2022
Q4 | $4.63M | Sell |
13,100
-4,100
| -24% | -$1.47M | 0.01% | 1190 |
|
|
2022
Q3 | $6.25M | Buy |
17,200
+7,100
| +70% | +$3.16M | 0.01% | 1008 |
|
|
2022
Q2 | $3.88M | Buy |
10,100
+2,900
| +40% | +$1.22M | 0.01% | 1490 |
|
|
2022
Q1 | $3.5M | Buy |
7,200
+5,700
| +380% | +$2.48M | ﹤0.01% | 1845 |
|
|
2021
Q4 | $740K | Buy |
1,500
+900
| +150% | +$465K | ﹤0.01% | 3664 |
|
|
2021
Q3 | $291K | Sell |
600
-15,400
| -96% | -$7M | ﹤0.01% | 4782 |
|
|
2021
Q2 | $5.97M | Buy |
16,000
+14,700
| +1,131% | +$5.17M | 0.01% | 1529 |
|
|
2021
Q1 | $459K | Sell |
1,300
-11,500
| -90% | -$4.19M | ﹤0.01% | 4140 |
|
|
2020
Q4 | $4.69M | Buy |
12,800
+9,800
| +327% | +$3.14M | 0.01% | 1334 |
|
|
2020
Q3 | $839K | Sell |
3,000
-2,800
| -48% | -$729K | ﹤0.01% | 2362 |
|
|
2020
Q2 | $1.38M | Buy |
+5,800
| New | +$1.17M | 0.01% | 1758 |
|
|
2020
Q1 | – | Sell |
-2,000
| Closed | -$356K | – | 5564 |
|
|
2019
Q4 | $356K | Buy |
2,000
+400
| +25% | +$63.9K | ﹤0.01% | 2713 |
|
|
2019
Q3 | $249K | Buy |
+1,600
| New | +$239K | ﹤0.01% | 2928 |
|
|
2019
Q2 | – | Sell |
-15,200
| Closed | -$2.06M | – | 5225 |
|
|
2019
Q1 | $2.06M | Buy |
+15,200
| New | +$1.99M | 0.02% | 915 |
|
|
2017
Q4 | – | Sell |
-1,000
| Closed | -$107K | – | 5072 |
|
|
2017
Q3 | $107K | Buy |
1,000
+700
| +233% | +$71.1K | ﹤0.01% | 3197 |
|
|
2017
Q2 | $29K | Sell |
300
-900
| -75% | -$85.8K | ﹤0.01% | 3798 |
|
|
2017
Q1 | $111K | Buy |
1,200
+1,000
| +500% | +$88.6K | ﹤0.01% | 2906 |
|
|
2016
Q4 | $16K | Sell |
200
-9,000
| -98% | -$723K | ﹤0.01% | 3784 |
|
|
2016
Q3 | $741K | Buy |
+9,200
| New | +$680K | 0.01% | 1500 |
|
|
2014
Q1 | – | Sell |
-1,100
| Closed | -$38K | – | 5431 |
|
|
2013
Q4 | $38K | Buy |
+1,100
| New | +$35.2K | ﹤0.01% | 3829 |
|
|
2013
Q3 | – | Sell |
-400
| Closed | -$10K | – | 5451 |
|
|
2013
Q2 | $10K | Buy |
+400
| New | +$9.5K | ﹤0.01% | 4440 |
|
Other funds holding MPWR
VCM
VPM
Group One Trading's MPWR Position: Q1 2026 in Review
Group One Trading sold out of Monolithic Power Systems (MPWR) in Q1 2026, closing a stake of 929 shares — an estimated $1.01M sold.
Group One Trading first reported a position in MPWR in Q2 2013 and held it in 19 quarters. The position peaked at $2.77M in Q3 2025. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.
- Group One Trading reported no remaining Monolithic Power Systems position as of Q1 2026 after selling out during the quarter.
- Group One Trading sold 929 Monolithic Power Systems shares in Q1 2026, an estimated $1.01M.
- Group One Trading first reported a position in Monolithic Power Systems in Q2 2013 and held it in 19 quarters.
- Group One Trading's Monolithic Power Systems position peaked at $2.77M in Q3 2025.
- 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.
Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.