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AOSL · ALPHA & OMEGA SEMICONDUCTOR Ltd · Holdings

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$29.37 -0.87 (-2.88%)
Market Cap
$834.25M
Shares
30.26M
Volume · Oct 5 195.11K Avg daily vol (3M) 598.26K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 216
Total Value: $1,150,835,662
Total Shares: 24,315,724
Showing 1–100 of 228 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 216 13F filers
Top Holder
17.5%
Sep 2023 → Jun 2026 · range 16.4% – 21.0%
of institutional value
Top 5
42.9%
Sep 2023 → Jun 2026 · range 42.9% – 57.0%
of institutional value
Top 10
61.2%
Sep 2023 → Jun 2026 · range 58.7% – 69.1%
of institutional value
HHI
592
Sep 2023 → Jun 2026 · range 565 – 842
Broadly held
Showing 100 of 228
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1387467 CUSIP G6331P104 13F (30d) 3 filings 3 filers Visit website Investor relations