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 | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | – | Sell |
-929
| Closed | -$1.01M | – | 8321 |
|
|
2025
Q4 | $842K | Sell |
929
-2,077
| -69% | -$2M | ﹤0.01% | 3057 |
|
|
2025
Q3 | $2.77M | Buy |
3,006
+1,343
| +81% | +$1.09M | ﹤0.01% | 1989 |
|
|
2025
Q2 | $1.22M | Buy |
1,663
+739
| +80% | +$471K | ﹤0.01% | 2591 |
|
|
2025
Q1 | $536K | Buy |
+924
| New | +$582K | ﹤0.01% | 3018 |
|
|
2022
Q2 | – | Sell |
-213
| Closed | -$90K | – | 8243 |
|
|
2022
Q1 | $103K | Buy |
+213
| New | +$92.8K | ﹤0.01% | 5464 |
|
|
2021
Q4 | – | Sell |
-297
| Closed | -$153K | – | 8610 |
|
|
2021
Q3 | $144K | Buy |
+297
| New | +$135K | ﹤0.01% | 5516 |
|
|
2021
Q2 | – | Sell |
-811
| Closed | -$285K | – | 8402 |
|
|
2021
Q1 | $286K | Buy |
811
+618
| +320% | +$225K | ﹤0.01% | 4633 |
|
|
2020
Q4 | $71K | Buy |
+193
| New | +$61.9K | ﹤0.01% | 4792 |
|
|
2020
Q2 | – | Sell |
-483
| Closed | -$97.8K | – | 6030 |
|
|
2020
Q1 | $81K | Buy |
+483
| New | +$82.8K | ﹤0.01% | 3441 |
|
|
2019
Q3 | – | Sell |
-169
| Closed | -$25.3K | – | 5394 |
|
|
2019
Q2 | $23K | Buy |
+169
| New | +$23K | ﹤0.01% | 4120 |
|
|
2018
Q4 | – | Sell |
-442
| Closed | -$55K | – | 5201 |
|
|
2018
Q3 | $55K | Sell |
442
-358
| -45% | -$49.9K | ﹤0.01% | 3919 |
|
|
2018
Q2 | $107K | Buy |
+800
| New | +$102K | ﹤0.01% | 3518 |
|
|
2017
Q4 | – | Sell |
-150
| Closed | -$16K | – | 5073 |
|
|
2017
Q3 | $16K | Buy |
+150
| New | +$15.2K | ﹤0.01% | 4152 |
|
|
2017
Q1 | – | Sell |
-100
| Closed | -$8.86K | – | 4864 |
|
|
2016
Q4 | $8K | Buy |
+100
| New | +$8.03K | ﹤0.01% | 4006 |
|
|
2016
Q3 | – | Sell |
-100
| Closed | -$7.39K | – | 4759 |
|
|
2016
Q2 | $7K | Buy |
+100
| New | +$6.55K | ﹤0.01% | 4186 |
|
|
2014
Q2 | – | Sell |
-1,768
| Closed | -$69K | – | 5380 |
|
|
2014
Q1 | $69K | Sell |
1,768
-2,331
| -57% | -$82.2K | ﹤0.01% | 3386 |
|
|
2013
Q4 | $142K | Buy |
4,099
+3,133
| +324% | +$100K | ﹤0.01% | 2734 |
|
|
2013
Q3 | $29K | Buy |
966
+518
| +116% | +$14.6K | ﹤0.01% | 3938 |
|
|
2013
Q2 | $11K | Buy |
+448
| New | +$10.6K | ﹤0.01% | 4396 |
|
Other funds holding MPWR
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. 1,121 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.
- 1,121 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.