Alpha and Omega Semiconductor (AOSL)
Supplies discrete devices and power ICs for computing, consumer, communication, and industrial systems.
$27.81
vs last close−0.47 (−1.66%)
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13F · 13D/G · Form 4
| Institutions | ≈ 77.23% | 23.12M shares | |
|---|---|---|---|
| 230 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 22.19% | 6.64M shares | |
| 15 holders · as of Sep 11, 2026 | |||
| Other | ≈ 0.58% | 174.2K shares | |
| remainder | |||
29.93M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
230 holders · 23.12M shares · 66 new positions · 126 increased · 66 reduced · 28 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 4.26M | 14.22% | +351.8K | Aug 7, 2026 |
| State Street Corp | 2.35M | 7.84% | +945.9K | Aug 7, 2026 |
| Manufacturers Life Insurance Company, the | 1.38M | 4.59% | −199.4K | Sep 9, 2026 |
| Dimensional Fund Advisors LP | 1.34M | 4.46% | −228.8K | Aug 11, 2026 |
| Vanguard Portfolio Management LLC | 1.11M | 3.71% | −57.4K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 1.07M | 3.58% | +19.7K | Aug 13, 2026 |
| Two Sigma Investments, LP | 951.6K | 3.18% | +398.6K | Aug 14, 2026 |
| FMR LLC | 791.7K | 2.65% | +247.0K | Aug 13, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Mike F. Chang | 14.10% | 4.13M | 13G | Feb 12, 2025 |
| BlackRock, Inc. | 12.70% | 3.74M | 13G | Apr 30, 2025 |
| State Street Corporation | 7.80% | 2.35M | 13G | Aug 7, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 16, 2026 | Bing Xueofficer: EVP-WW Sales & Bus Development | Sale | 875 | $33.99 | 122,785 |
| Jun 16, 2026 | Bing Xueofficer: EVP-WW Sales & Bus Development | Sale | 4,916 | $47.09 | 123,660 |
| May 22, 2026 | Claudia Chendirector | Sale · 2 lots | 4,061 | $39.53 | 28,192 |
| May 18, 2026 | Bing Xueofficer: EVP-WW Sales & Bus Development | Sale | 4,916 | $41.00 | 127,701 |
| Apr 16, 2026 | Bing Xueofficer: EVP-WW Sales & Bus Development | Sale | 1,832 | $31.21 | 132,617 |
| Apr 17, 2026 | Stephen Chunping Changdirector, officer: Chief Executive Officer | Sale · 3 lots | 14,884 | $34.47 | 635,901 |
| Apr 17, 2026 | Yifan Liangofficer: CFO and Corp Secretary | Sale | 8,625 | $35.00 | 270,003 |
| Apr 14, 2026 | Stephen Chunping Changdirector, officer: Chief Executive Officer | Sale | 5,594 | $31.90 | 650,785 |
| Apr 14, 2026 | Yifan Liangofficer: CFO and Corp Secretary | Sale · 3 lots | 26,517 | $30.57 | 278,628 |
| Mar 16, 2026 | Bing Xueofficer: EVP-WW Sales & Bus Development | Sale | 2,408 | $21.92 | 113,631 |
House and Senate disclosures
Not reported.