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AOSL

ALPHA & OMEGA SEMICONDUCTOR Ltd
$37.11 -6.41 (-14.73%) At close · Jul 2
Market Cap
$1.11B
Shares
29,929,578

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.

The Jun 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.
Holders: 180
Total Value: $468,571,226
Total Shares: 21,138,068
Showing 1–100 of 184 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 180 13F filers
Top Holder
18.5%
Jun 2023 → Mar 2026 · range 16.4% – 20.9%
of institutional value
Top 5
44.9%
Jun 2023 → Mar 2026 · range 44.9% – 57.5%
of institutional value
Top 10
58.9%
Jun 2023 → Mar 2026 · range 58.9% – 69.9%
of institutional value
HHI
599
Jun 2023 → Mar 2026 · range 599 – 850
Broadly held
Showing 100 of 184
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1387467 CUSIP G6331P104 13F (30d) 5 filings 4 filers Visit website Investor relations