# MONOLITHIC PWR SYS INC (MPWR)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/MPWR/

- Reporting holders: 37
- Reported value: $248.6M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [ZEVENBERGEN CAPITAL INVESTMENTS LLC](https://holderbook.com/funds/1276918-zevenbergen-capital-investments-llc/) | $100.7M | 74,736 | 2.3% | 32 |
| [CONGRESS ASSET MANAGEMENT CO](https://holderbook.com/funds/897378-congress-asset-management-co/) | $100.2M | 74,381 | 0.6% | 32 |
| [PARK NATIONAL CORP /OH/](https://holderbook.com/funds/805676-park-national-corp-oh/) | $21.7M | 16,082 | 0.6% | 7 |
| [SAPIENT CAPITAL LLC](https://holderbook.com/funds/1998653-sapient-capital-llc/) | $8.7M | 6,457 | 0.1% | 12 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $3.1M | 2,337 | 0.1% | 12 |
| [Wedmont Private Capital](https://holderbook.com/funds/1904274-wedmont-private-capital/) | $2.7M | 2,006 | 0.1% | 19 |
| [MOODY NATIONAL BANK TRUST DIVISION](https://holderbook.com/funds/1092903-moody-national-bank-trust-division/) | $1.6M | 1,168 | 0.1% | 8 |
| [Green Alpha Advisors, LLC](https://holderbook.com/funds/1439207-green-alpha-advisors-llc/) | $1.1M | 793 | 0.7% | 24 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $1.0M | 779 | 0.0% | 16 |
| [Valeo Financial Advisors, LLC](https://holderbook.com/funds/1722641-valeo-financial-advisors-llc/) | $945.9K | 702 | 0.0% | 15 |
| [Versant Capital Management, Inc](https://holderbook.com/funds/1735057-versant-capital-management-inc/) | $933.6K | 693 | 0.1% | 15 |
| [Central Pacific Bank - Trust Division](https://holderbook.com/funds/2020066-central-pacific-bank-trust-division/) | $887.8K | 659 | 0.1% | 11 |
| [Whalen Wealth Management Inc.](https://holderbook.com/funds/1894447-whalen-wealth-management-inc/) | $875.6K | 650 | 0.4% | 8 |
| [Legacy Wealth Asset Management, LLC](https://holderbook.com/funds/1846151-legacy-wealth-asset-management-llc/) | $614.3K | 456 | 0.1% | 6 |
| [AMERICAN NATIONAL BANK & TRUST](https://holderbook.com/funds/1272164-american-national-bank-trust/) | $511.9K | 380 | 0.0% | 22 |
| [CoreCap Advisors, LLC](https://holderbook.com/funds/1902501-corecap-advisors-llc/) | $478.3K | 354 | 0.0% | 9 |
| [ARGENT CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/1120926-argent-capital-management-llc/) | $365.1K | 271 | 0.0% | 5 |
| [MassMutual Private Wealth & Trust, FSB](https://holderbook.com/funds/1103653-massmutual-private-wealth-trust-fsb/) | $309.9K | 230 | 0.0% | 22 |
| [Graves Light Lenhart Wealth, Inc.](https://holderbook.com/funds/1759803-graves-light-lenhart-wealth-inc/) | $277.4K | 206 | 0.0% | 3 |
| [Balefire, LLC](https://holderbook.com/funds/1750924-balefire-llc/) | $268.1K | 199 | 0.0% | 3 |
| [FERGUSON WELLMAN CAPITAL MANAGEMENT, INC](https://holderbook.com/funds/869353-ferguson-wellman-capital-management-inc/) | $256.0K | 190 | 0.0% | 3 |
| [Avidian Wealth Enterprises, LLC](https://holderbook.com/funds/1471474-avidian-wealth-enterprises-llc/) | $249.5K | 185 | 0.0% | 2 |
| [Venture Visionary Partners LLC](https://holderbook.com/funds/1792283-venture-visionary-partners-llc/) | $233.7K | 173 | 0.0% | 1 |
| [Everhart Financial Group, Inc.](https://holderbook.com/funds/1852858-everhart-financial-group-inc/) | $208.8K | 155 | 0.0% | 2 |
| [EASTERN BANK](https://holderbook.com/funds/1126395-eastern-bank/) | $145.5K | 108 | 0.0% | 2 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 37 | $248.6M |
| Q2 2026 | 1,251 | $71.6B |
| Q1 2026 | 1,134 | $52.7B |
| Q4 2025 | 1,068 | $45.6B |
| Q3 2025 | 986 | $44.7B |
| Q2 2025 | 918 | $35.3B |
| Q1 2025 | 868 | $27.7B |
| Q4 2024 | 872 | $28.5B |
| Q3 2024 | 893 | $44.2B |
| Q2 2024 | 844 | $40.2B |
| Q1 2024 | 813 | $33.3B |
| Q4 2023 | 742 | $30.7B |