Whale Rock Capital Management’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
Q2 | – | Sell |
-50,150
| Closed | -$29.1M | – | 45 |
|
|
2025
Q1 | $29.1M | Buy |
+50,150
| New | +$31.6M | 0.5% | 30 |
|
|
2024
Q4 | – | Sell |
-200,490
| Closed | -$185M | – | 41 |
|
|
2024
Q3 | $185M | Buy |
200,490
+102,380
| +104% | +$88.4M | 2.6% | 16 |
|
|
2024
Q2 | $80.6M | Buy |
+98,110
| New | +$70.8M | 1.14% | 28 |
|
|
2023
Q3 | – | Sell |
-131,516
| Closed | -$71M | – | 50 |
|
|
2023
Q2 | $71M | Sell |
131,516
-76,956
| -37% | -$36.6M | 1.22% | 29 |
|
|
2023
Q1 | $104M | Buy |
208,472
+155,555
| +294% | +$71.5M | 2.3% | 19 |
|
|
2022
Q4 | $18.7M | Sell |
52,917
-464,002
| -90% | -$167M | 0.63% | 31 |
|
|
2022
Q3 | $188M | Sell |
516,919
-212,142
| -29% | -$94.4M | 5.28% | 4 |
|
|
2022
Q2 | $280M | Sell |
729,061
-30,473
| -4% | -$12.9M | 8.32% | 2 |
|
|
2022
Q1 | $369M | Buy |
+759,534
| New | +$331M | 4.57% | 5 |
|
|
2021
Q1 | – | Sell |
-265,236
| Closed | -$97.1M | – | 54 |
|
|
2020
Q4 | $97.1M | Sell |
265,236
-556,015
| -68% | -$178M | 0.65% | 42 |
|
|
2020
Q3 | $230M | Buy |
821,251
+29,290
| +4% | +$7.62M | 1.52% | 31 |
|
|
2020
Q2 | $188M | Buy |
791,961
+334,028
| +73% | +$67.6M | 1.5% | 34 |
|
|
2020
Q1 | $76.7M | Buy |
457,933
+58,762
| +15% | +$10.1M | 1.05% | 39 |
|
|
2019
Q4 | $71.1M | Sell |
399,171
-149
| -0% | -$23.8K | 1.21% | 29 |
|
|
2019
Q3 | $62.1M | Sell |
399,320
-394
| -0.1% | -$58.9K | 1.15% | 29 |
|
|
2019
Q2 | $54.3M | Sell |
399,714
-99
| -0% | -$13.5K | 0.93% | 32 |
|
|
2019
Q1 | $54.2M | Sell |
399,813
-370
| -0.1% | -$48.6K | 0.98% | 34 |
|
|
2018
Q4 | $46.5M | Buy |
400,183
+83,110
| +26% | +$9.95M | 1.48% | 25 |
|
|
2018
Q3 | $39.8M | Sell |
317,073
-202
| -0.1% | -$28.2K | 0.89% | 28 |
|
|
2018
Q2 | $42.4M | Sell |
317,275
-204
| -0.1% | -$26K | 1.21% | 28 |
|
|
2018
Q1 | $36.8M | Buy |
317,479
+70,087
| +28% | +$8.31M | 1.25% | 27 |
|
|
2017
Q4 | $27.8M | Sell |
247,392
-319
| -0.1% | -$37K | 1.29% | 23 |
|
|
2017
Q3 | $26.4M | Sell |
247,711
-543
| -0.2% | -$55.1K | 1.37% | 24 |
|
|
2017
Q2 | $23.9M | Buy |
248,254
+21
| +0% | +$2K | 1.67% | 21 |
|
|
2017
Q1 | $22.9M | Buy |
248,233
+235
| +0.1% | +$20.8K | 1.24% | 29 |
|
|
2016
Q4 | $20.3M | Buy |
247,998
+3
| +0% | +$241 | 1.64% | 22 |
|
|
2016
Q3 | $20M | Sell |
247,995
-310
| -0.1% | -$22.9K | 1.29% | 24 |
|
|
2016
Q2 | $17M | Buy |
248,305
+89,082
| +56% | +$5.83M | 1.41% | 24 |
|
|
2016
Q1 | $10.1M | Sell |
159,223
-24,501
| -13% | -$1.46M | 0.94% | 34 |
|
|
2015
Q4 | $11.7M | Sell |
183,724
-76
| -0% | -$4.72K | 0.97% | 31 |
|
|
2015
Q3 | $9.41M | Buy |
+183,800
| New | +$9.11M | 0.93% | 29 |
|
|
2015
Q1 | – | Sell |
-228,252
| Closed | -$11.4M | – | 31 |
|
|
2014
Q4 | $11.4M | Buy |
+228,252
| New | +$10.3M | 1.3% | 24 |
|
|
2013
Q4 | – | Sell |
-172,703
| Closed | -$5.23M | – | 27 |
|
|
2013
Q3 | $5.23M | Buy |
+172,703
| New | +$4.85M | 0.91% | 28 |
|
Other funds holding MPWR
Whale Rock Capital Management's MPWR Position: Q2 2025 in Review
Whale Rock Capital Management sold out of Monolithic Power Systems (MPWR) in Q2 2025, closing a stake of 50,150 shares — an estimated $29.1M sold.
Whale Rock Capital Management first reported a position in MPWR in Q3 2013 and held it in 33 quarters. The position peaked at $369M in Q1 2022. 905 funds tracked by Wall St. Rank hold MPWR as of Q2 2025.
- Whale Rock Capital Management reported no remaining Monolithic Power Systems position as of Q2 2025 after selling out during the quarter.
- Whale Rock Capital Management sold 50,150 Monolithic Power Systems shares in Q2 2025, an estimated $29.1M.
- Whale Rock Capital Management first reported a position in Monolithic Power Systems in Q3 2013 and held it in 33 quarters.
- Whale Rock Capital Management's Monolithic Power Systems position peaked at $369M in Q1 2022.
- 905 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2025.
Based on Whale Rock Capital Management's 13F filing for Q2 2025, filed 14 Aug 2025.