Institutional Ownership
Alpha & Omega Semiconductor
CUSIP G6331P104SHSAOSLQ1 2026
13D / 13G Filings
23
Schedule 13D/13G on record
Beneficial Filers
9
Distinct reporting persons
Largest Stake
19.1%
Max % of class reported
Institutional Holders
173
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
23 filings · latest Aug 14, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Aug 14, 2025 | Hood River Capital Management LLC | 13G/A | — | — | SEC |
| 2 | May 15, 2025 | Hood River Capital Management LLC | 13G | 6.8% | 1.99M | SEC |
| 3 | Apr 30, 2025 | Blackrock, Inc. | 13G/A | 12.7% | 3.74M | SEC |
| 4 | Apr 15, 2025 | Dimensional Fund Advisors LP | 13G/A | 6.3% | 1.84M | SEC |
| 5 | Feb 12, 2025 | Mike F. Chang | 13G/A | 14.1% | — | SEC |
| 6 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 7.5% | 2.09M | SEC |
| 7 | Feb 12, 2024 | Chang Mike F | 13G/A | 14.7% | 4.12M | SEC |
| 8 | Feb 9, 2024 | Dimensional Fund Advisors LP | 13G/A | 7.6% | 2.11M | SEC |
| 9 | Feb 10, 2023 | Dimensional Fund Advisors LP | 13G/A | 8.1% | 2.21M | SEC |
| 10 | Feb 9, 2023 | Chang Mike F | 13G/A | 15.5% | 4.27M | SEC |
13 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Alpha & Omega Semiconductor.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 3.90M | $86.53M |
| 2 | Manufacturers Life Insurance Company, The | 1.57M | $34.89M |
| 3 | Dimensional Fund Advisors LP | 1.56M | $34.65M |
| 4 | State Street Corp | 1.40M | $31.06M |
| 5 | Wellington Management Group LLP | 694.8K | $15.40M |
| 6 | Geode Capital Management, LLC | 628.7K | $13.93M |
| 7 | Two Sigma Investments, LP | 553.0K | $12.25M |
| 8 | Fmr LLC | 544.7K | $12.07M |
| 9 | Weber Capital Management LLC /Adv | 542.3K | $12.02M |
| 10 | Royce & Associates LP | 518.1K | $11.48M |