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 | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $18.8M | Hold |
17,200
| – | – | 0.03% | 531 |
|
|
2025
Q4 | $15.6M | Sell |
17,200
-8,300
| -33% | -$7.99M | 0.02% | 720 |
|
|
2025
Q3 | $23.5M | Buy |
25,500
+6,900
| +37% | +$5.59M | 0.04% | 525 |
|
|
2025
Q2 | $13.6M | Buy |
18,600
+4,300
| +30% | +$2.74M | 0.02% | 685 |
|
|
2025
Q1 | $8.29M | Buy |
14,300
+1,200
| +9% | +$756K | 0.02% | 829 |
|
|
2024
Q4 | $7.75M | Buy |
13,100
+3,400
| +35% | +$2.46M | 0.02% | 918 |
|
|
2024
Q3 | $8.97M | Sell |
9,700
-2,400
| -20% | -$2.07M | 0.02% | 827 |
|
|
2024
Q2 | $9.94M | Sell |
12,100
-1,500
| -11% | -$1.08M | 0.02% | 680 |
|
|
2024
Q1 | $9.21M | Buy |
13,600
+9,100
| +202% | +$6.08M | 0.02% | 766 |
|
|
2023
Q4 | $2.84M | Sell |
4,500
-1,300
| -22% | -$679K | 0.01% | 1647 |
|
|
2023
Q3 | $2.68M | Sell |
5,800
-5,200
| -47% | -$2.66M | 0.01% | 1561 |
|
|
2023
Q2 | $5.94M | Buy |
11,000
+9,500
| +633% | +$4.51M | 0.02% | 851 |
|
|
2023
Q1 | $751K | Sell |
1,500
-1,700
| -53% | -$781K | ﹤0.01% | 2461 |
|
|
2022
Q4 | $1.13M | Buy |
3,200
+1,000
| +45% | +$359K | ﹤0.01% | 2123 |
|
|
2022
Q3 | $799K | Buy |
2,200
+1,600
| +267% | +$712K | ﹤0.01% | 2439 |
|
|
2022
Q2 | $230K | Sell |
600
-2,500
| -81% | -$1.06M | ﹤0.01% | 3585 |
|
|
2022
Q1 | $1.51M | Buy |
3,100
+2,100
| +210% | +$915K | ﹤0.01% | 1901 |
|
|
2021
Q4 | $493K | Buy |
1,000
+500
| +100% | +$258K | ﹤0.01% | 2983 |
|
|
2021
Q3 | $242K | Sell |
500
-1,000
| -67% | -$455K | ﹤0.01% | 3668 |
|
|
2021
Q2 | $560K | Sell |
1,500
-200
| -12% | -$70.4K | ﹤0.01% | 2786 |
|
|
2021
Q1 | $600K | Buy |
1,700
+1,500
| +750% | +$546K | ﹤0.01% | 2448 |
|
|
2020
Q4 | $73K | Sell |
200
-7,200
| -97% | -$2.31M | ﹤0.01% | 4053 |
|
|
2020
Q3 | $2.07M | Buy |
7,400
+2,400
| +48% | +$624K | 0.01% | 1101 |
|
|
2020
Q2 | $1.19M | Sell |
5,000
-500
| -9% | -$101K | 0.01% | 1512 |
|
|
2020
Q1 | $921K | Buy |
5,500
+200
| +4% | +$34.3K | 0.01% | 1362 |
|
|
2019
Q4 | $944K | Buy |
5,300
+4,700
| +783% | +$751K | 0.01% | 1850 |
|
|
2019
Q3 | $93K | Sell |
600
-2,900
| -83% | -$434K | ﹤0.01% | 3359 |
|
|
2019
Q2 | $475K | Sell |
3,500
-2,500
| -42% | -$340K | ﹤0.01% | 2233 |
|
|
2019
Q1 | $813K | Buy |
+6,000
| New | +$787K | 0.01% | 1848 |
|
|
2018
Q4 | – | Sell |
-7,000
| Closed | -$879K | – | 5057 |
|
|
2018
Q3 | $879K | Buy |
7,000
+1,800
| +35% | +$251K | ﹤0.01% | 2229 |
|
|
2018
Q2 | $695K | Buy |
5,200
+2,000
| +63% | +$255K | ﹤0.01% | 2498 |
|
|
2018
Q1 | $370K | Sell |
3,200
-600
| -16% | -$71.1K | ﹤0.01% | 2958 |
|
|
2017
Q4 | $425 | Buy |
3,800
+2,900
| +322% | +$337K | ﹤0.01% | 2756 |
|
|
2017
Q3 | $97 | Sell |
900
-5,100
| -85% | -$518K | ﹤0.01% | 3622 |
|
|
2017
Q2 | $579 | Buy |
6,000
+1,300
| +28% | +$124K | ﹤0.01% | 2238 |
|
|
2017
Q1 | $433 | Buy |
4,700
+4,400
| +1,467% | +$390K | ﹤0.01% | 2363 |
|
|
2016
Q4 | $25K | Sell |
300
-3,600
| -92% | -$289K | ﹤0.01% | 3996 |
|
|
2016
Q3 | $314K | Sell |
3,900
-1,100
| -22% | -$81.3K | ﹤0.01% | 2491 |
|
|
2016
Q2 | $341K | Sell |
5,000
-2,100
| -30% | -$138K | ﹤0.01% | 2542 |
|
|
2016
Q1 | $451K | Buy |
+7,100
| New | +$423K | ﹤0.01% | 2049 |
|
Other funds holding MPWR
VCM
VPM
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. 1,059 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.
- 1,059 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.