Vanguard Group’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 | $5.47B | Sell |
6,034,394
-39,639
| -0.7% | -$38.1M | 0.08% | 236 |
|
|
2025
Q3 | $5.59B | Buy |
6,074,033
+134,087
| +2% | +$109M | 0.08% | 224 |
|
|
2025
Q2 | $4.34B | Buy |
5,939,946
+19,277
| +0.3% | +$12.3M | 0.07% | 276 |
|
|
2025
Q1 | $3.43B | Buy |
5,920,669
+96,395
| +2% | +$60.7M | 0.06% | 313 |
|
|
2024
Q4 | $3.45B | Buy |
5,824,274
+74,046
| +1% | +$53.6M | 0.06% | 315 |
|
|
2024
Q3 | $5.32B | Buy |
5,750,228
+55,132
| +1% | +$47.6M | 0.1% | 189 |
|
|
2024
Q2 | $4.68B | Buy |
5,695,096
+175,156
| +3% | +$126M | 0.09% | 201 |
|
|
2024
Q1 | $3.74B | Buy |
5,519,940
+55,874
| +1% | +$37.3M | 0.07% | 274 |
|
|
2023
Q4 | $3.45B | Buy |
5,464,066
+90,589
| +2% | +$47.3M | 0.08% | 271 |
|
|
2023
Q3 | $2.48B | Buy |
5,373,477
+123,946
| +2% | +$63.4M | 0.06% | 331 |
|
|
2023
Q2 | $2.84B | Buy |
5,249,531
+101,846
| +2% | +$48.4M | 0.07% | 316 |
|
|
2023
Q1 | $2.58B | Buy |
5,147,685
+29,374
| +0.6% | +$13.5M | 0.07% | 322 |
|
|
2022
Q4 | $1.81B | Buy |
5,118,311
+34,143
| +0.7% | +$12.3M | 0.05% | 408 |
|
|
2022
Q3 | $1.85B | Buy |
5,084,168
+130,675
| +3% | +$58.1M | 0.05% | 380 |
|
|
2022
Q2 | $1.9B | Buy |
4,953,493
+80,530
| +2% | +$34M | 0.05% | 382 |
|
|
2022
Q1 | $2.37B | Buy |
4,872,963
+78,909
| +2% | +$34.4M | 0.06% | 370 |
|
|
2021
Q4 | $2.37B | Buy |
4,794,054
+21,742
| +0.5% | +$11.2M | 0.05% | 383 |
|
|
2021
Q3 | $2.31B | Sell |
4,772,312
-78,355
| -2% | -$35.6M | 0.06% | 366 |
|
|
2021
Q2 | $1.81B | Buy |
4,850,667
+25,957
| +0.5% | +$9.14M | 0.05% | 459 |
|
|
2021
Q1 | $1.7B | Buy |
4,824,710
+800,448
| +20% | +$292M | 0.05% | 443 |
|
|
2020
Q4 | $1.47B | Buy |
4,024,262
+157,592
| +4% | +$50.5M | 0.04% | 458 |
|
|
2020
Q3 | $1.08B | Sell |
3,866,670
-143,771
| -4% | -$37.4M | 0.04% | 496 |
|
|
2020
Q2 | $950M | Buy |
4,010,441
+78,686
| +2% | +$15.9M | 0.03% | 517 |
|
|
2020
Q1 | $658M | Buy |
3,931,755
+93,718
| +2% | +$16.1M | 0.03% | 565 |
|
|
2019
Q4 | $683M | Buy |
3,838,037
+31,771
| +0.8% | +$5.07M | 0.02% | 675 |
|
|
2019
Q3 | $592M | Buy |
3,806,266
+123,143
| +3% | +$18.4M | 0.02% | 712 |
|
|
2019
Q2 | $500M | Buy |
3,683,123
+105,831
| +3% | +$14.4M | 0.02% | 796 |
|
|
2019
Q1 | $485M | Sell |
3,577,292
-83,031
| -2% | -$10.9M | 0.02% | 798 |
|
|
2018
Q4 | $426M | Buy |
3,660,323
+106,795
| +3% | +$12.8M | 0.02% | 784 |
|
|
2018
Q3 | $446M | Buy |
3,553,528
+208,362
| +6% | +$29M | 0.02% | 849 |
|
|
2018
Q2 | $447M | Buy |
3,345,166
+22,077
| +0.7% | +$2.81M | 0.02% | 835 |
|
|
2018
Q1 | $385M | Sell |
3,323,089
-55,553
| -2% | -$6.58M | 0.02% | 882 |
|
|
2017
Q4 | $380M | Buy |
3,378,642
+191,987
| +6% | +$22.3M | 0.02% | 897 |
|
|
2017
Q3 | $340M | Buy |
3,186,655
+68,117
| +2% | +$6.92M | 0.02% | 935 |
|
|
2017
Q2 | $301M | Buy |
3,118,538
+85,754
| +3% | +$8.17M | 0.01% | 976 |
|
|
2017
Q1 | $279M | Buy |
3,032,784
+155,052
| +5% | +$13.7M | 0.01% | 1002 |
|
|
2016
Q4 | $236M | Buy |
2,877,732
+104,052
| +4% | +$8.35M | 0.01% | 1067 |
|
|
2016
Q3 | $223M | Sell |
2,773,680
-151,223
| -5% | -$11.2M | 0.01% | 1041 |
|
|
2016
Q2 | $200M | Buy |
2,924,903
+105,377
| +4% | +$6.9M | 0.01% | 1063 |
|
|
2016
Q1 | $179M | Buy |
2,819,526
+88,239
| +3% | +$5.26M | 0.01% | 1086 |
|
|
2015
Q4 | $174M | Buy |
2,731,287
+52,108
| +2% | +$3.24M | 0.01% | 1099 |
|
|
2015
Q3 | $137M | Buy |
2,679,179
+61,805
| +2% | +$3.06M | 0.01% | 1216 |
|
|
2015
Q2 | $133M | Buy |
2,617,374
+98,661
| +4% | +$5.22M | 0.01% | 1345 |
|
|
2015
Q1 | $133M | Buy |
2,518,713
+45,215
| +2% | +$2.28M | 0.01% | 1301 |
|
|
2014
Q4 | $123M | Buy |
2,473,498
+26,498
| +1% | +$1.19M | 0.01% | 1270 |
|
|
2014
Q3 | $108M | Buy |
2,447,000
+21,444
| +0.9% | +$943K | 0.01% | 1301 |
|
|
2014
Q2 | $103M | Buy |
2,425,556
+125,821
| +5% | +$4.88M | 0.01% | 1378 |
|
|
2014
Q1 | $89.2M | Buy |
2,299,735
+94,208
| +4% | +$3.32M | 0.01% | 1429 |
|
|
2013
Q4 | $76.4M | Buy |
2,205,527
+120,655
| +6% | +$3.86M | 0.01% | 1497 |
|
|
2013
Q3 | $63.1M | Buy |
2,084,872
+121,188
| +6% | +$3.4M | 0.01% | 1562 |
|
|
2013
Q2 | $47.3M | Buy |
+1,963,684
| New | +$46.6M | 0.01% | 1665 |
|
Other funds holding MPWR
Vanguard Group's MPWR Position: Q4 2025 in Review
Vanguard Group reduced its Monolithic Power Systems (MPWR) stake by 0.65% in Q4 2025, selling an estimated $38.1M and leaving 6,034,394 shares worth $5.47B. The position accounts for 0.08% of the portfolio, ranked #236.
Vanguard Group first reported a position in MPWR in Q2 2013 and has held it in 51 quarters since. The position peaked at $5.59B in Q3 2025. 1,059 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.
- Vanguard Group held 6,034,394 shares of Monolithic Power Systems worth $5.47B as of Q4 2025.
- Vanguard Group sold 39,639 Monolithic Power Systems shares in Q4 2025, an estimated $38.1M.
- Monolithic Power Systems made up 0.08% of Vanguard Group's portfolio in Q4 2025, its #236 holding.
- Vanguard Group first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 51 quarters since.
- Vanguard Group's Monolithic Power Systems position peaked at $5.59B in Q3 2025.
- 1,059 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.
Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.