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Monolithic Power (MPWR)
NASDAQ
$1,425.40-$112.48 (-7.31%)
Price as of Jun 23, 2026 3:26 PM EDT- $75.6BMarket Cap
- 123.73%1-Year Change
- SemiconductorsIndustry
Monolithic Power (MPWR)
$1,425.40-$112.48 (-7.31%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
LOMBARD ODIER ASSET MANAGEMENT (EUROPE) LTD | 46.19% | 22.7M | +22.7M (+99.94%) | Sep 30, 2025 |
BLACKROCK, INC. | 12.36% | 6.1M | +110,076 (+1.81%) | Mar 31, 2026 |
VANGUARD GROUP INC | 12.28% | 6.0M | -39,639 (-0.66%) | Dec 31, 2025 |
BLACKROCK INC. | 12.02% | 5.9M | +542,434 (+9.18%) | Jun 30, 2024 |
BLACKROCK FUNDING, INC. /DE | 11.04% | 5.4M | -381,736 (-7.04%) | Dec 31, 2024 |
FMR LLC | 8.96% | 4.4M | +423,823 (+9.63%) | Mar 31, 2026 |
N/A | 6.28% | 3.1M | +3.1M (+100.00%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 9.47% | 4.7M | +45,719 (+0.98%) | Mar 31, 2026 |
iSHARES TRUST | 4.82% | 2.4M | +30,836 (+1.30%) | Mar 31, 2026 |
FIDELITY SELECT PORTFOLIOS | 3.31% | 1.6M | +987 (+0.06%) | Feb 28, 2026 |
INVESCO QQQ TRUST, SERIES 1 | 2.11% | 1.0M | -40,180 (-3.88%) | Mar 31, 2026 |
FIDELITY SECURITIES FUND | 1.75% | 861,098 | +700 (+0.08%) | Jan 31, 2026 |
FIDELITY CONCORD STREET TRUST | 1.64% | 804,222 | +8,477 (+1.05%) | Feb 28, 2026 |
FIDELITY MAGELLAN FUND | 1.26% | 617,954 | 0 (0.00%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions855.1M (75.92%)
- Mutual Funds267.1M (23.71%)
- Insiders4.2M (0.37%)
- Other0 (0.00%)
Insider Transactions
- 0.37% (4.2M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 9Number of InsiderSelling (last 12 months)
- $78.7BAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $278,150.24 | 244 | $1,139.96 | 173,338 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $636,297.52 | 556 | $1,144.42 | 172,782 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $551,544.00 | 480 | $1,149.05 | 172,302 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $649,387.20 | 560 | $1,159.62 | 171,742 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $797,311.44 | 684 | $1,165.66 | 171,058 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $2.4M | 2,036 | $1,170.38 | 169,022 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $2.0M | 1,680 | $1,176.35 | 167,342 |
Tseng Saria EVP & General Counsel | Sell | Apr 06, 2026 | $1.6M | 1,396 | $1,179.50 | 165,946 |
Tseng Saria EVP & General Counsel | Sell | Apr 01, 2026 | $651,594.24 | 576 | $1,131.24 | 174,406 |
Sciammas Maurice EVP, WW Sales & Marketing | Sell | Apr 01, 2026 | $33,493.20 | 30 | $1,116.44 | 1,239 |
Tseng Saria EVP & General Counsel | Sell | Apr 01, 2026 | $208,315.60 | 184 | $1,132.15 | 174,222 |
Tseng Saria EVP & General Counsel | Sell | Apr 01, 2026 | $181,462.40 | 160 | $1,134.14 | 174,062 |
Tseng Saria EVP & General Counsel | Sell | Apr 01, 2026 | $213,551.08 | 188 | $1,135.91 | 173,874 |
Tseng Saria EVP & General Counsel | Sell | Apr 01, 2026 | $332,001.08 | 292 | $1,136.99 | 173,582 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $5.2M | 5,154 | $1,000.81 | 195,502 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $9.1M | 9,080 | $1,005.18 | 186,422 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $3.4M | 3,360 | $1,009.63 | 183,062 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $3.2M | 3,194 | $1,017.22 | 179,868 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $2.3M | 2,200 | $1,023.00 | 177,668 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $2.5M | 2,440 | $1,029.21 | 175,228 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $171,909.60 | 166 | $1,035.60 | 175,062 |
Tseng Saria EVP & General Counsel | Sell | Mar 30, 2026 | $83,289.60 | 80 | $1,041.12 | 174,982 |
Sciammas Maurice EVP, WW Sales & Marketing | Sell | Mar 20, 2026 | $32,852.10 | 30 | $1,095.07 | 1,269 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $14.7M | 12,731 | $1,155.71 | 908,503 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $5.8M | 4,992 | $1,159.84 | 903,511 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $4.7M | 4,001 | $1,164.92 | 899,510 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $2.4M | 2,076 | $1,168.80 | 897,434 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $234,678.00 | 200 | $1,173.39 | 897,234 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $566,779.20 | 480 | $1,180.79 | 896,754 |
Hsing Michael CEO | Sell | Feb 12, 2026 | $190,116.80 | 160 | $1,188.23 | 896,594 |