AAOINasdaqSemiconductors & Related DevicesFiscal year ends December 31
APPLIED OPTOELECTRONICS, INC.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$78.20+2.63 (+3.48%)
Close on Oct 19, 2026
- Market cap
- $6.38B
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
60.5%
51M of 85M shares
Institutional holders
481
175 new, 63 sold out
Net institutional buying
-2M
In Q2 2026
Insider trades, 12 months
0 buys · 51 sales
Net sold $124.47M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Marex Group plc | 4,486,292 | 5.60% | 13G (passive) | May 8, 2026 |
| BlackRock, Inc. | 4,342,797 | 5.40% | 13G (passive) amendment | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of AAOI | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,450,270 | 7.63% | $955.67M | −742,059 | 0.01% |
| Invesco Ltd. | 3,414,262 | 4.04% | $505.86M | +1,399,857 | 0.04% |
| Vanguard Capital Management LLC | 3,363,001 | 3.98% | $498.26M | +301,479 | 0.01% |
| Marex Group plc | 2,830,272 | 3.35% | $419.33M | +2,541,105 | 1.78% |
| Vanguard Portfolio Management LLC | 2,651,718 | 3.14% | $392.88M | +849,835 | 0.02% |
| UBS Group AG | 2,111,464 | 2.50% | $312.83M | +1,140,720 | 0.04% |
| Oberweis Asset Management Inc/ | 1,791,127 | 2.12% | $265.37M | −558,842 | 5.48% |
| Geode Capital Management, LLC | 1,670,936 | 1.98% | $247.62M | +49,631 | 0.01% |
| Value Aligned Research Advisors, LLC | 1,595,124 | 1.89% | $236.33M | +327,186 | 0.59% |
| Goldman Sachs Group Inc | 1,586,453 | 1.88% | $235.05M | +501,689 | 0.02% |
| State Street Corp | 1,497,617 | 1.77% | $221.89M | −146,676 | 0.01% |
| Hood River Capital Management LLC | 1,392,510 | 1.65% | $206.31M | +116,991 | 1.50% |
| Clear Street Group Inc. | 1,231,143 | 1.46% | $182.41M | New | 0.46% |
| Morgan Stanley | 1,115,138 | 1.32% | $165.22M | +387,572 | 0.01% |
| JPMorgan Chase & Co | 1,068,246 | 1.26% | $160.88M | −42,886 | 0.01% |
| Frontier Capital Management Co LLC | 975,318 | 1.15% | $144.50M | +691,172 | 1.35% |
| Susquehanna International Group, Llp | 648,986 | 0.77% | $96.15M | +562,013 | 0.01% |
| Jane Street Group, LLC | 563,557 | 0.67% | $83.50M | −1,715,761 | 0.01% |
| William Blair Investment Management, LLC | 504,202 | 0.60% | $74.70M | New | 0.22% |
| Vanguard Fiduciary Trust Co | 488,922 | 0.58% | $72.44M | +41,240 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 481 | 51M | 60.5% | 175 / 136 | 144 / 63 | 15M | 17M |
| Q1 2026 | 376 | 53M | 62.8% | 191 / 97 | 79 / 30 | 21M | 11M |
| Q4 2025 | 219 | 48M | 56.5% | 68 / 90 | 48 / 24 | 18M | 9M |
| Q3 2025 | 179 | 40M | 47.0% | 58 / 55 | 43 / 23 | 14M | 7M |
| Q2 2025 | 145 | 33M | 39.3% | 41 / 62 | 27 / 39 | 11M | 9M |
| Q1 2025 | 146 | 31M | 36.8% | 31 / 61 | 37 / 39 | 8M | 8M |
| Q4 2024 | 155 | 31M | 36.3% | 49 / 56 | 37 / 32 | 14M | 13M |
| Q3 2024 | 140 | 29M | 34.9% | 42 / 43 | 35 / 35 | 13M | 10M |
| Q2 2024 | 134 | 29M | 34.8% | 44 / 41 | 38 / 28 | 11M | 10M |
| Q1 2024 | 119 | 29M | 34.4% | 45 / 35 | 29 / 28 | 10M | 6M |
| Q4 2023 | 103 | 24M | 28.8% | 45 / 23 | 27 / 19 | 13M | 4M |
| Q3 2023 | 77 | 16M | 18.5% | 29 / 21 | 19 / 7 | 8M | 4M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of AAOI | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 2,420,119 | 2.86% | $358.56M | 0.02% | Jun 30, 2026 |
| iShares A.I. Innovation and Tech Active ETF | 1,585,258 | 1.87% | $149.52M | 1.15% | Jul 31, 2026 |
| Invesco Small Cap Value Fund | 1,369,547 | 1.62% | $129.18M | 1.16% | Jul 31, 2026 |
| Invesco Value Opportunities Fund | 1,099,832 | 1.30% | $103.74M | 1.14% | Jul 31, 2026 |
| Oberweis Small-Cap Opportunities Fund | 1,071,126 | 1.27% | $158.70M | 5.59% | Jun 30, 2026 |
| Vanguard Information Technology Index Fund | 984,501 | 1.16% | $155.95M | 0.09% | May 31, 2026 |
| Vanguard Small-Cap Index Fund | 874,426 | 1.03% | $129.55M | 0.07% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 865,098 | 1.02% | $128.17M | 0.13% | Jun 30, 2026 |
| Hood River Small-Cap Growth Fund | 810,940 | 0.96% | $120.15M | 1.81% | Jun 30, 2026 |
| Oberweis Micro-Cap Fund | 528,758 | 0.63% | $78.34M | 4.85% | Jun 30, 2026 |
| Vanguard Small-Cap Growth Index Fund | 504,079 | 0.60% | $74.68M | 0.16% | Jun 30, 2026 |
| iShares Russell Mid-Cap Growth ETF | 455,790 | 0.54% | $67.53M | 0.31% | Jun 30, 2026 |
| Vanguard Russell 2000 Index Fund | 339,578 | 0.40% | $53.79M | 0.31% | May 31, 2026 |
| Fidelity Extended Market Index Fund | 331,306 | 0.39% | $52.48M | 0.12% | May 31, 2026 |
| iShares Russell Mid-Cap ETF | 316,843 | 0.37% | $46.94M | 0.08% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Chih-Hsiang (Thompson) Lin | President and CEO, Director | 2,103,649 | 2.49% | Aug 4, 2026 |
| Stefan J. Murry | Chief Financial Officer | 367,168 | 0.43% | Sep 10, 2026 |
| Hung-Lun (Fred) Chang | *** See Remarks | 249,276 | 0.29% | Sep 10, 2026 |
| Shu-Hua (Joshua) Yeh | *** See Remarks | 377,498 | 0.45% | Aug 20, 2026 |
| David C. Kuo | *** See Remarks | 146,221 | 0.17% | Jul 23, 2026 |
| Richard B. Black | Director | 163,329 | 0.19% | Sep 17, 2026 |
| Robert James Flanagan | Director | 1,166 | 0.00% | Jun 11, 2026 |
| William H. Yeh | Director | 244,209 | 0.29% | Jun 11, 2026 |
| Min-Chu (Mike) Chen | Director | 182,219 | 0.22% | Jun 11, 2026 |
| Che-Wei Lin | Director | 254,672 | 0.30% | Jun 11, 2026 |
| Cynthia DeLaney | Director | 63,193 | 0.07% | Jun 11, 2026 |
| Elizabeth G. Loboa | Director | 20,523 | 0.02% | Mar 5, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Richard B. Black Director | Sep 15, 2026 | Gift | −2,200 | – | – | 159,092 |
| Stefan J. Murry Chief Financial Officer | Sep 10, 2026 | Sale(10b5-1 plan) | −4,000 | $105.33 | $421.32K | 367,168 |
| Hung-Lun (Fred) Chang *** See Remarks | Sep 8, 2026 | Sale | −32,172 | $110.21 | $3.55M | 249,276 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Aug 18, 2026 | Sale(10b5-1 plan) | −6,000 | $147.73 | $886.38K | 377,498 |
| Stefan J. Murry Chief Financial Officer | Aug 10, 2026 | Sale(10b5-1 plan) | −4,000 | $144.79 | $579.16K | 371,168 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Aug 4, 2026 | Sale(10b5-1 plan) | −4,715 | $126.50 | $596.45K | 383,498 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jul 31, 2026 | Award | +9,251 | – | – | 1,296,047 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jul 22, 2026 | Tax withholding | −2,031 | $119.26 | $242.22K | 1,286,796 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jul 22, 2026 | Tax withholding | −8,753 | $119.26 | $1.04M | 1,293,683 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jul 22, 2026 | Tax withholding | −2,332 | $119.26 | $278.11K | 1,291,351 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jul 22, 2026 | Tax withholding | −2,524 | $119.26 | $301.01K | 1,288,827 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jul 22, 2026 | Tax withholding | −2,553 | $119.26 | $304.47K | 390,369 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jul 22, 2026 | Tax withholding | −609 | $119.26 | $72.63K | 389,760 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jul 22, 2026 | Tax withholding | −861 | $119.26 | $102.68K | 388,899 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jul 22, 2026 | Tax withholding | −686 | $119.26 | $81.81K | 388,213 |
| Stefan J. Murry Chief Financial Officer | Jul 22, 2026 | Tax withholding | −770 | $119.26 | $91.83K | 375,168 |
| Stefan J. Murry Chief Financial Officer | Jul 22, 2026 | Tax withholding | −988 | $119.26 | $117.83K | 375,938 |
| Stefan J. Murry Chief Financial Officer | Jul 22, 2026 | Tax withholding | −679 | $119.26 | $80.98K | 376,926 |
| Stefan J. Murry Chief Financial Officer | Jul 22, 2026 | Tax withholding | −2,971 | $119.26 | $354.32K | 377,605 |
| David C. Kuo *** See Remarks | Jul 22, 2026 | Tax withholding | −516 | $119.26 | $61.54K | 146,221 |
| David C. Kuo *** See Remarks | Jul 22, 2026 | Tax withholding | −1,869 | $119.26 | $222.90K | 147,209 |
| David C. Kuo *** See Remarks | Jul 22, 2026 | Tax withholding | −472 | $119.26 | $56.29K | 146,737 |
| David C. Kuo *** See Remarks | Jul 22, 2026 | Tax withholding | −407 | $119.26 | $48.54K | 145,814 |
| Hung-Lun (Fred) Chang *** See Remarks | Jul 22, 2026 | Tax withholding | −613 | $119.26 | $73.11K | 282,837 |
| Hung-Lun (Fred) Chang *** See Remarks | Jul 22, 2026 | Tax withholding | −773 | $119.26 | $92.19K | 280,064 |
| Hung-Lun (Fred) Chang *** See Remarks | Jul 22, 2026 | Tax withholding | −2,674 | $119.26 | $318.90K | 283,450 |
| Hung-Lun (Fred) Chang *** See Remarks | Jul 22, 2026 | Tax withholding | −616 | $119.26 | $73.46K | 281,448 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jul 21, 2026 | Sale(10b5-1 plan) | −1,285 | $120.02 | $154.23K | 392,922 |
| Stefan J. Murry Chief Financial Officer | Jul 10, 2026 | Sale(10b5-1 plan) | −4,000 | $122.09 | $488.36K | 380,576 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jun 18, 2026 | Sale(10b5-1 plan) | −6,000 | $171.89 | $1.03M | 394,207 |
| Hung-Lun (Fred) Chang *** See Remarks | Jun 17, 2026 | Sale(10b5-1 plan) | −40,329 | $170.60 | $6.88M | 286,124 |
| David C. Kuo *** See Remarks | Jun 12, 2026 | Tax withholding | −19,065 | $172.78 | $3.29M | 178,305 |
| David C. Kuo *** See Remarks | Jun 12, 2026 | Sale | −29,227 | $166.53 | $4.87M | 149,078 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jun 12, 2026 | Tax withholding | −86,655 | $172.78 | $14.97M | 1,361,436 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | Jun 12, 2026 | Sale | −59,000 | $166.53 | $9.83M | 1,302,436 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jun 12, 2026 | Sale | −28,826 | $166.53 | $4.80M | 400,207 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jun 12, 2026 | Tax withholding | −23,397 | $172.78 | $4.04M | 429,033 |
| Stefan J. Murry Chief Financial Officer | Jun 12, 2026 | Tax withholding | −30,330 | $172.78 | $5.24M | 417,576 |
| Stefan J. Murry Chief Financial Officer | Jun 12, 2026 | Sale | −33,000 | $166.53 | $5.50M | 384,576 |
| Hung-Lun (Fred) Chang *** See Remarks | Jun 12, 2026 | Tax withholding | −27,297 | $172.78 | $4.72M | 360,453 |
| Hung-Lun (Fred) Chang *** See Remarks | Jun 12, 2026 | Sale | −34,000 | $166.53 | $5.66M | 326,453 |
| Stefan J. Murry Chief Financial Officer | Jun 10, 2026 | Sale(10b5-1 plan) | −4,000 | $171.45 | $685.80K | 447,906 |
| William H. Yeh Director | Jun 9, 2026 | Award | +1,166 | – | – | 239,985 |
| Richard B. Black Director | Jun 9, 2026 | Award | +1,166 | – | – | 165,529 |
| Cynthia DeLaney Director | Jun 9, 2026 | Award | +1,166 | – | – | 60,813 |
| Che-Wei Lin Director | Jun 9, 2026 | Award | +1,166 | – | – | 254,672 |
| Robert James Flanagan Director | Jun 9, 2026 | Award | +1,166 | – | – | 1,166 |
| Min-Chu (Mike) Chen Director | Jun 9, 2026 | Award | +1,166 | – | – | 162,219 |
| Hung-Lun (Fred) Chang *** See Remarks | Jun 5, 2026 | Sale | −4,000 | $200.07 | $800.28K | 387,750 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jun 4, 2026 | Sale | −5,000 | $204.75 | $1.02M | 457,430 |
| Shu-Hua (Joshua) Yeh *** See Remarks | Jun 4, 2026 | Sale | −5,000 | $205.39 | $1.03M | 452,430 |
| Min-Chu (Mike) Chen Director | Jun 2, 2026 | Sale | −8,247 | $201.00 | $1.66M | 161,053 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | May 28, 2026 | Other | +721,811.73 | – | – | 807,602 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | May 28, 2026 | Other | −721,811.73 | – | – | 807,602 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | May 28, 2026 | Gift | +85,790.27 | – | – | 85,790 |
| Chih-Hsiang (Thompson) Lin President and CEO, Director | May 28, 2026 | Gift | −85,790.27 | – | – | 807,602 |
| Cynthia DeLaney Director | May 26, 2026 | Sale | −56,575 | $189.23 | $10.71M | 59,647 |
| Hung-Lun (Fred) Chang *** See Remarks | May 19, 2026 | Sale | −33,630 | $173.26 | $5.83M | 391,750 |
| Hung-Lun (Fred) Chang *** See Remarks | May 19, 2026 | Tax withholding | −27,297 | $190.36 | $5.20M | 425,380 |
| Stefan J. Murry Chief Financial Officer | May 19, 2026 | Tax withholding | −30,330 | $190.36 | $5.77M | 484,906 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Stefan J. Murry Officer | Oct 13, 2026 | 4,000 | $411.49K | Oct 12, 2026 | RSU |
| Shu-Hua (Joshua) Yeh Officer | Oct 5, 2026 | 6,000 | $720.15K | Oct 5, 2026 | RSU |
| Stefan J. Murry Officer | Sep 10, 2026 | 4,000 | $421.31K | Sep 10, 2026 | RSU |
| Hung-Lun (Fred) Chang Officer | Sep 9, 2026 | 32,172 | $3.55M | Sep 8, 2026 | PSU |
| Shu-Hua (Joshua) Yeh Officer | Aug 18, 2026 | 6,000 | $886.40K | Aug 18, 2026 | RSU |
| Stefan J. Murry Officer | Aug 10, 2026 | 4,000 | $579.17K | Aug 10, 2026 | PSU |
| Shu-Hua (Joshua) Yeh Officer | Aug 4, 2026 | 4,715 | $596.18K | Aug 4, 2026 | RSU |
| Shu-Hua (Joshua) Yeh Officer | Jul 21, 2026 | 1,285 | $154.24K | Jul 21, 2026 | RSU Award |
| Stefan J. Murry Officer | Jul 9, 2026 | 4,000 | $492.00K | Jul 10, 2026 | PSU |
| Shu-Hua (Joshua) Yeh Officer | Jun 18, 2026 | 6,000 | $1.03M | Jun 18, 2026 | Stock Award |
| Hung-Lun (Fred) Chang Officer | Jun 17, 2026 | 40,329 | $6.88M | Jun 17, 2026 | RSU |
| Shu-Hua (Joshua) Yeh Officer, SENIOR VICE PRESIDENT AND ASIA GENERAL MANAGER | Jun 12, 2026 | 28,826 | $4.98M | Jun 12, 2026 | PSU |
| Chih-Hsiang (Thompson) Lin Officer, PRESIDENT AND CEO | Jun 12, 2026 | 59,000 | $10.19M | Jun 12, 2026 | PSU |
| Stefan J. Murry Officer, CHIEF FINANCIAL OFFICER | Jun 12, 2026 | 33,000 | $5.72M | Jun 12, 2026 | PSU |
| David C. Kuo Officer, SENIOR VICE PRESIDENT AND CHIEF LEGAL OFFICER | Jun 12, 2026 | 29,227 | $5.05M | Jun 12, 2026 | PSU |