Walleye 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 |
-1,271
| Closed | -$1.22M | – | 4672 |
|
|
2025
Q3 | $1.17M | Buy |
1,271
+1,162
| +1,066% | +$942K | ﹤0.01% | 2163 |
|
|
2025
Q2 | $79.7K | Sell |
109
-2,240
| -95% | -$1.43M | ﹤0.01% | 3677 |
|
|
2025
Q1 | $1.36M | Buy |
+2,349
| New | +$1.48M | ﹤0.01% | 1871 |
|
|
2024
Q2 | – | Sell |
-1,632
| Closed | -$1.18M | – | 4689 |
|
|
2024
Q1 | $1.11M | Sell |
1,632
-1,149
| -41% | -$767K | ﹤0.01% | 2157 |
|
|
2023
Q4 | $1.75M | Buy |
+2,781
| New | +$1.45M | ﹤0.01% | 2029 |
|
|
2023
Q1 | – | Sell |
-1,298
| Closed | -$597K | – | 5178 |
|
|
2022
Q4 | $459K | Buy |
+1,298
| New | +$466K | ﹤0.01% | 2877 |
|
|
2022
Q1 | – | Sell |
-446
| Closed | -$194K | – | 5688 |
|
|
2021
Q4 | $220K | Buy |
+446
| New | +$230K | ﹤0.01% | 3778 |
|
|
2021
Q1 | – | Sell |
-331
| Closed | -$121K | – | 5111 |
|
|
2020
Q4 | $121K | Sell |
331
-1,128
| -77% | -$361K | ﹤0.01% | 3837 |
|
|
2020
Q3 | $408K | Buy |
1,459
+497
| +52% | +$129K | ﹤0.01% | 2409 |
|
|
2020
Q2 | $228K | Buy |
962
+868
| +923% | +$176K | ﹤0.01% | 2971 |
|
|
2020
Q1 | $16K | Buy |
+94
| New | +$16.1K | ﹤0.01% | 3660 |
|
|
2019
Q3 | – | Sell |
-3,973
| Closed | -$594K | – | 4285 |
|
|
2019
Q2 | $539K | Buy |
+3,973
| New | +$540K | ﹤0.01% | 2132 |
|
|
2018
Q4 | – | Sell |
-12,558
| Closed | -$1.58M | – | 5056 |
|
|
2018
Q3 | $1.58M | Buy |
12,558
+5,412
| +76% | +$754K | 0.01% | 1593 |
|
|
2018
Q2 | $955K | Buy |
7,146
+16
| +0.2% | +$2.04K | 0.01% | 2159 |
|
|
2018
Q1 | $825K | Buy |
7,130
+958
| +16% | +$114K | ﹤0.01% | 2135 |
|
|
2017
Q4 | $693 | Sell |
6,172
-2,871
| -32% | -$333K | ﹤0.01% | 2290 |
|
|
2017
Q3 | $964 | Buy |
9,043
+3,699
| +69% | +$376K | ﹤0.01% | 1910 |
|
|
2017
Q2 | $515 | Sell |
5,344
-4,096
| -43% | -$390K | ﹤0.01% | 2349 |
|
|
2017
Q1 | $869 | Buy |
9,440
+8,775
| +1,320% | +$778K | 0.01% | 1764 |
|
|
2016
Q4 | $54K | Sell |
665
-4,233
| -86% | -$340K | ﹤0.01% | 3600 |
|
|
2016
Q3 | $394K | Sell |
4,898
-5,443
| -53% | -$402K | ﹤0.01% | 2316 |
|
|
2016
Q2 | $706K | Buy |
10,341
+5,662
| +121% | +$371K | ﹤0.01% | 1907 |
|
|
2016
Q1 | $298K | Buy |
+4,679
| New | +$279K | ﹤0.01% | 2420 |
|
|
2015
Q3 | – | Sell |
-300
| Closed | -$15K | – | 5316 |
|
|
2015
Q2 | $15K | Buy |
+300
| New | +$15.9K | ﹤0.01% | 4134 |
|
Other funds holding MPWR
VNIM
Walleye Trading's MPWR Position: Q4 2025 in Review
Walleye Trading sold out of Monolithic Power Systems (MPWR) in Q4 2025, closing a stake of 1,271 shares — an estimated $1.22M sold.
Walleye Trading first reported a position in MPWR in Q2 2015 and held it in 24 quarters. The position peaked at $1.75M in Q4 2023. 1,061 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.
- Walleye Trading reported no remaining Monolithic Power Systems position as of Q4 2025 after selling out during the quarter.
- Walleye Trading sold 1,271 Monolithic Power Systems shares in Q4 2025, an estimated $1.22M.
- Walleye Trading first reported a position in Monolithic Power Systems in Q2 2015 and held it in 24 quarters.
- Walleye Trading's Monolithic Power Systems position peaked at $1.75M in Q4 2023.
- 1,061 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.
Based on Walleye Trading's 13F filing for Q4 2025, filed 13 Feb 2026.