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Applied Optoelectronics, Inc. (AAOI)

Technology Communication Equipment
94.30 $
+4.7% vs. previous close
Closing price · As of: 31. Jul 2026

Who owns Applied Optoelectronics, Inc. (AAOI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.1% of the shares are freely tradable; institutional investors hold 68.3%.

Ownership Structure

Institutional ownership
68.3%
Insiders
10.8%
Float
95.1%
Short % of float
13.2%
Shares Outstanding
80Mio.

Largest Shareholders

Institutions

Institutions AAOI
Name Stake (%) Shares Change (%) Date
BlackRock Inc 8.96 7,192,329 +35.5 03/31/2026
Vanguard Group Inc 6.21 4,982,660 +7.7 12/31/2025
Vanguard Capital Management, LLC 3.82 3,061,522 +0.0 03/31/2026
Oberweis Asset Management Inc 2.93 2,349,969 +15.2 03/31/2026
Jane Street Group LLC 2.84 2,279,318 +35.4 03/31/2026
D. E. Shaw & Co LP 2.64 2,117,157 +54.9 03/31/2026
Amvescap Plc. 2.51 2,014,405 -42.6 03/31/2026
Vanguard Portfolio Management, LLC 2.25 1,801,883 +0.0 03/31/2026
T. Rowe Price Associates, Inc. 2.16 1,732,381 -22.3 03/31/2026

Funds

Funds AAOI
Name Stake (%) Shares Change (%) Date
Vanguard Total Stock Mkt Idx Inv 2.84 2,275,444 +0.2 04/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
22. Jul 2026 Kuo David C *** See Remarks Other 407 119.26 48,539
22. Jul 2026 Kuo David C *** See Remarks Other 516 119.26 61,538
22. Jul 2026 Kuo David C *** See Remarks Other 472 119.26 56,291
22. Jul 2026 Kuo David C *** See Remarks Other 1,869 119.26 222,897
22. Jul 2026 Murry Stefan J. Chief Financial Officer Other 770 119.26 91,830
22. Jul 2026 Murry Stefan J. Chief Financial Officer Other 988 119.26 117,829
22. Jul 2026 Murry Stefan J. Chief Financial Officer Other 679 119.26 80,978
22. Jul 2026 Murry Stefan J. Chief Financial Officer Other 2,971 119.26 354,321
22. Jul 2026 Chang Hung-Lun (Fred) *** See Remarks Other 616 119.26 73,464
22. Jul 2026 Chang Hung-Lun (Fred) *** See Remarks Other 773 119.26 92,188
22. Jul 2026 Chang Hung-Lun (Fred) *** See Remarks Other 613 119.26 73,106
22. Jul 2026 Chang Hung-Lun (Fred) *** See Remarks Other 2,674 119.26 318,901
22. Jul 2026 Lin Chih-Hsiang (Thompson) President and CEO Other 2,031 119.26 242,217
22. Jul 2026 Lin Chih-Hsiang (Thompson) President and CEO Other 2,524 119.26 301,012
22. Jul 2026 Lin Chih-Hsiang (Thompson) President and CEO Other 2,332 119.26 278,114
22. Jul 2026 Lin Chih-Hsiang (Thompson) President and CEO Other 8,753 119.26 1,043,883
22. Jul 2026 Yeh Shu-Hua (Joshua) *** See Remarks Other 686 119.26 81,812
22. Jul 2026 Yeh Shu-Hua (Joshua) *** See Remarks Other 861 119.26 102,683
22. Jul 2026 Yeh Shu-Hua (Joshua) *** See Remarks Other 609 119.26 72,629
22. Jul 2026 Yeh Shu-Hua (Joshua) *** See Remarks Other 2,553 119.26 304,471
21. Jul 2026 Yeh Shu-Hua (Joshua) *** See Remarks Sell 1,285 120.02 154,226
10. Jul 2026 Murry Stefan J. Chief Financial Officer Sell 4,000 122.09 488,360

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.

View all insider transactions →

Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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