Security record · archived quarter
AOSL
Alpha and Omega Semiconductor Limited · Technology · Semiconductors
12Tracked holders
+1Δ holders
10.15MShares held
$260.36MReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +9.1% ·
share flow +3.6% ·
net new positions +8.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 74 | +6 | 18.11M | $856.20M | +10 | −5 |
| Q1 2026 | 72 | +1 | 16.75M | $370.74M | +6 | −5 |
| Q4 2025 | 71 | +1 | 18.69M | $370.32M | +3 | −2 |
| Q3 2025 | 15 | 0 | 11.36M | $317.59M | +1 | −1 |
| Q2 2025 | 12 | +1 | 10.15M | $260.36M | +1 | — |
| Q1 2025 | 8 | 0 | 3.00M | $74.59M | +2 | −2 |
| Q4 2024 | 8 | -2 | 3.02M | $111.87M | — | −2 |
| Q3 2024 | 9 | -1 | 1.77M | $65.68M | +1 | −2 |
| Q2 2024 | 10 | — | 2.04M | $76.25M | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.86M | — | $99.00M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | The Vanguard Group ✦ (passive) | 2.42M | — | $62.10M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 2.42M | — | $62.10M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 2.42M | — | $62.10M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.42M | — | $62.10M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.42M | — | $62.10M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | State Street Global Advisors ✦ (passive) | 1.28M | -5.6% | $32.81M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Wellington Management ✦ | 751.89K | -17.2% | $19.29M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 21 | Wellington Management ✦ | 751.89K | -17.2% | $19.29M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | Wellington Management ✦ | 751.89K | -17.2% | $19.29M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | Geode Capital Management ✦ (passive) | 601.67K | +0.5% | $15.44M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | Geode Capital Management ✦ (passive) | 601.67K | +0.5% | $15.44M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 25 | Fidelity (FMR) ✦ | 514.46K | — | $13.20M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 514.46K | — | $13.20M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Millennium Management ✦ | 405.06K | New | $10.39M | 0.0% | New | 1 | SEC ↗ |
| 28 | Two Sigma Investments ✦ | 196.90K | +180.5% | $5.05M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 59.51K | +213.9% | $1.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 59.51K | +213.9% | $1.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | AQR Capital Management ✦ | 59.51K | +213.9% | $1.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | AQR Capital Management ✦ | 59.51K | +213.9% | $1.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | T. Rowe Price ✦ | 25.82K | +6.7% | $663,000 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 34 | Citadel Advisors ✦ | 20.47K | +23.9% | $525,337 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 35 | Citadel Advisors ✦ | 20.47K | +23.9% | $525,337 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 36 | Gotham Asset Management ✦ | 13.81K | +58.4% | $354,365 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Millennium Management | $10.39M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 178 holders, 21.80M shares, $470.98M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 10
SC 13G/A — Chang Mike F
Aug 07
SC 13G — STATE STREET CORP
Jul 14
SC 13G/A — DIMENSIONAL FUND ADVISORS LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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