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AAOI · Applied Optoelectronics, Inc.

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$106.23 -7.05 (-6.22%) At close · Aug 28
Market Cap
$8.98B
Shares
84.57M

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.

Holders: 489
Total Value: $10,421,639,677
Total Shares: 70,340,546
Showing 1–100 of 542 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 489 13F filers · Δ vs Mar 31, 2026
Top Holder
9.2%
Sep 2023 → Jun 2026 · range 8.3% – 11.8%
−1.8 pts
Top 5
37.6%
Sep 2023 → Jun 2026 · range 29.9% – 39.6%
+3.0 pts
Top 10
55.8%
Sep 2023 → Jun 2026 · range 46.4% – 59.4%
+5.3 pts
HHI
408
Sep 2023 → Jun 2026 · range 331 – 473
Broadly held+38

Quarterly Activity

vs Mar 31, 2026
New
175
Increased
139
Decreased
148
Sold Out
73
Unchanged
27
Holder count: +102
Institutional value: +88.5%
Shares held: +7.6%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 542
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1158114 CUSIP 03823U102 13F (30d) 373 filings 370 filers Visit website Investor relations