Monolithic Power Systems, Inc. MPWR
1,261.08 USD -67.22 (-5.06%)
At closeNov 5, 2026, 4:06 AM EST
1,229.88 -31.20 -2.47%
Pre-market · Nov 5, 4:06 AM ET
1,213.50 Day range 1,335.10
833.18 52-week range 1,714.09
- YTD
- +39.14%
- 1 year
- +31.65%
Held by funds
532 US ETFs and mutual funds hold MPWR · largest positions
Ownership
Held by insiders 3.62%
Held by institutions 101.01%
Float held by institutions 104.80%
Institutions 1,791
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 11.37% | 5,589,925 | 7.05B | Jun 29, 2026 |
| FMR, LLC | 10.54% | 5,177,258 | 6.53B | Jun 29, 2026 |
| Vanguard Capital Management LLC | 6.36% | 3,126,756 | 3.94B | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 5.10% | 2,504,858 | 3.16B | Jun 29, 2026 |
| Invesco Ltd. | 4.77% | 2,343,930 | 2.96B | Jun 29, 2026 |
| State Street Corporation | 4.64% | 2,282,186 | 2.88B | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Fidelity Select Portfolios-Select Semiconductors Portfolio | 3.34% | 1,642,848 | 2.07B | Aug 30, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.02% | 1,481,838 | 1.87B | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard 500 Index Fund | 2.59% | 1,273,706 | 1.61B | Jun 29, 2026 |
| iShares Trust-iShares Semiconductor ETF | 2.28% | 1,122,128 | 1.42B | Sep 29, 2026 |
| Invesco QQQ Trust, Series 1 | 2.09% | 1,026,507 | 1.29B | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Mid-Cap Index Fund | 2.06% | 1,011,166 | 1.28B | Jun 29, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BLEGEN THEODORE BERNHARD | Chief Financial Officer | Sale | Feb 5, 2026 | 93,015 |
| DEAN ROBERT W II | Chief Financial Officer | Sale | Aug 23, 2026 | 7,154 |
| ELMIGER EUGEN J | Director | Sale | May 5, 2026 | 5,402 |
| HSING MICHAEL R | Chief Executive Officer | Sale | Sep 27, 2026 | 964,129 |
| LEE VICTOR K | Director | Sale | Feb 8, 2026 | 27,756 |
| MARTINEZ CARINTIA | Director | Stock Award(Grant) | Feb 2, 2026 | 1,067 |