Institutional Ownership
Monolithic Pwr Sys Inc
CUSIP 609839105COMMPWRQ1 2026
13D / 13G Filings
21
Schedule 13D/13G on record
Beneficial Filers
7
Distinct reporting persons
Largest Stake
14.0%
Max % of class reported
Institutional Holders
1,101
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
21 filings · latest Feb 5, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 5, 2026 | Fmr LLC | 13G/A | 8.3% | 3.98M | SEC |
| 2 | Jan 8, 2026 | Blackrock, Inc. | 13G/A | 10.2% | 4.90M | SEC |
| 3 | Jul 29, 2025 | The Vanguard Group | 13G/A | 12.4% | 5.94M | SEC |
| 4 | Apr 17, 2025 | Blackrock, Inc. | 13G/A | 9.8% | 4.67M | SEC |
| 5 | Nov 12, 2024 | Fmr LLC | 13G/A | 7.2% | — | SEC |
| 6 | Feb 14, 2024 | Price T Rowe Associates Inc /Md/ | 13G | 4.6% | 2.20M | SEC |
| 7 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 11.4% | 5.46M | SEC |
| 8 | Feb 9, 2024 | Fmr LLC | 13G | 5.3% | — | SEC |
| 9 | Jan 24, 2024 | Blackrock Inc. | 13G/A | 10.9% | 5.24M | SEC |
| 10 | Feb 14, 2023 | Price T Rowe Associates Inc /Md/ | 13G | 7.8% | 3.65M | SEC |
11 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Monolithic Pwr Sys Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 6.07M | $6.64B |
| 2 | Fmr LLC | 4.40M | $4.81B |
| 3 | State Street Corp | 2.19M | $2.40B |
| 4 | Invesco Ltd. | 1.49M | $1.62B |
| 5 | Geode Capital Management, LLC | 1.43M | $1.56B |
| 6 | Franklin Resources Inc | 928.7K | $1.02B |
| 7 | Morgan Stanley | 656.4K | $717.64M |
| 8 | First Trust Advisors LP | 591.4K | $646.56M |
| 9 | Goldman Sachs Group Inc | 568.1K | $621.09M |
| 10 | Massachusetts Financial Services Co /Ma/ | 567.8K | $620.75M |