AAOI
Applied Optoelectronics, Inc.
62.50$
-9.5%
vs. previous close
Closing price · As of: Nov 2, 2026
Ownership
Ownership Structure
Who owns Applied Optoelectronics, Inc. (AAOI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.2% of the shares are freely tradable; institutional investors hold 68.3%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
68.3%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
10.8%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
95.2%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
16.9%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
85Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.60 | 6,450,270 | -10.3 | 06/30/2026 |
| Amvescap Plc. | 4.02 | 3,414,262 | +69.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.96 | 3,363,001 | +9.8 | 06/30/2026 |
| Marex Group Ltd | 3.33 | 2,830,272 | +878.8 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 3.12 | 2,651,718 | +47.2 | 06/30/2026 |
| UBS Group AG | 2.49 | 2,111,464 | +117.5 | 06/30/2026 |
| Oberweis Asset Management Inc | 2.11 | 1,791,127 | -23.8 | 06/30/2026 |
| Geode Capital Management, LLC | 1.97 | 1,670,936 | +3.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.01 | 2,552,678 | +5.3 | 09/30/2026 |
| Vanguard Small Cap Index | 2.13 | 1,807,552 | +101.8 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Lin Chih-Hsiang (Thompson) | President and CEO | 1,279,374 | 79,960,875 $ | Oct 22, 2026 | direct |
| Yeh Shu-Hua (Joshua) | *** See Remarks | 369,280 | 23,080,000 $ | Oct 22, 2026 | direct |
| Murry Stefan J. | Chief Financial Officer | 357,223 | 22,326,438 $ | Oct 22, 2026 | direct |
| Chang Hung-Lun (Fred) | *** See Remarks | 244,135 | 15,258,438 $ | Oct 22, 2026 | direct |
| Black Richard B | Director | 159,092 | 9,943,250 $ | Sep 15, 2026 | indirect |
| Kuo David C | *** See Remarks | 142,228 | 8,889,250 $ | Oct 22, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 677 | 77.32 | 52,346 |
| Oct 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 850 | 77.32 | 65,722 |
| Oct 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 674 | 77.32 | 52,114 |
| Oct 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 2,940 | 77.32 | 227,321 |
| Oct 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 846 | 77.32 | 65,413 |
| Oct 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 1,086 | 77.32 | 83,970 |
| Oct 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 746 | 77.32 | 57,681 |
| Oct 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 3,267 | 77.32 | 252,604 |
| Oct 22, 2026 | Kuo David C | *** See Remarks | Other | 447 | 77.32 | 34,562 |
| Oct 22, 2026 | Kuo David C | *** See Remarks | Other | 567 | 77.32 | 43,840 |
| Oct 22, 2026 | Kuo David C | *** See Remarks | Other | 519 | 77.32 | 40,129 |
| Oct 22, 2026 | Kuo David C | *** See Remarks | Other | 2,053 | 77.32 | 158,738 |
| Oct 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 323 | 77.32 | 24,974 |
| Oct 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 406 | 77.32 | 31,392 |
| Oct 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 287 | 77.32 | 22,191 |
| Oct 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 1,202 | 77.32 | 92,939 |
| Oct 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,165 | 77.32 | 167,398 |
| Oct 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,691 | 77.32 | 208,068 |
| Oct 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,486 | 77.32 | 192,218 |
| Oct 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 9,331 | 77.32 | 721,473 |
| Oct 12, 2026 | Murry Stefan J. | Chief Financial Officer | Sell | 4,000 | 102.87 | 411,480 |
| Oct 5, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Sell | 6,000 | 120.03 | 720,180 |
| Sep 15, 2026 | Black Richard B | Director | Other | 2,200 | 0.00 | – |
| Sep 10, 2026 | Murry Stefan J. | Chief Financial Officer | Sell | 4,000 | 105.33 | 421,320 |
| Sep 8, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Sell | 32,172 | 110.21 | 3,545,676 |
| Aug 18, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Sell | 6,000 | 147.73 | 886,380 |
| Aug 10, 2026 | Murry Stefan J. | Chief Financial Officer | Sell | 4,000 | 144.79 | 579,160 |
| Aug 4, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Sell | 4,715 | 126.50 | 596,448 |
| Jul 31, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 9,251 | 0.00 | – |
| Jul 22, 2026 | Kuo David C | *** See Remarks | Other | 407 | 119.26 | 48,539 |
| Jul 22, 2026 | Kuo David C | *** See Remarks | Other | 516 | 119.26 | 61,538 |
| Jul 22, 2026 | Kuo David C | *** See Remarks | Other | 472 | 119.26 | 56,291 |
| Jul 22, 2026 | Kuo David C | *** See Remarks | Other | 1,869 | 119.26 | 222,897 |
| Jul 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 770 | 119.26 | 91,830 |
| Jul 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 988 | 119.26 | 117,829 |
| Jul 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 679 | 119.26 | 80,978 |
| Jul 22, 2026 | Murry Stefan J. | Chief Financial Officer | Other | 2,971 | 119.26 | 354,321 |
| Jul 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 616 | 119.26 | 73,464 |
| Jul 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 773 | 119.26 | 92,188 |
| Jul 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 613 | 119.26 | 73,106 |
| Jul 22, 2026 | Chang Hung-Lun (Fred) | *** See Remarks | Other | 2,674 | 119.26 | 318,901 |
| Jul 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,031 | 119.26 | 242,217 |
| Jul 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,524 | 119.26 | 301,012 |
| Jul 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 2,332 | 119.26 | 278,114 |
| Jul 22, 2026 | Lin Chih-Hsiang (Thompson) | President and CEO | Other | 8,753 | 119.26 | 1,043,883 |
| Jul 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 686 | 119.26 | 81,812 |
| Jul 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 861 | 119.26 | 102,683 |
| Jul 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 609 | 119.26 | 72,629 |
| Jul 22, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Other | 2,553 | 119.26 | 304,471 |
| Jul 21, 2026 | Yeh Shu-Hua (Joshua) | *** See Remarks | Sell | 1,285 | 120.02 | 154,226 |
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: November 2, 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.