APPLIED OPTOELECTRONICS INC AAOI
COM · Common Stock · CUSIP 03823U102 · ISIN US03823U1025
Company in Sugar Land, United States
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersSugar Land, TX
- Founded1997
- Websiteao-inc.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($314.1k this quarter). Holder counts are more reliable. Shares outstanding: 62.4m as of 2025-08-05, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $25.71. Options: 19 managers hold calls ($69.0m notional), 14 hold puts ($34.3m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 62 |
| Q4 2022 | 63 |
| Q1 2023 | 53 |
| Q2 2023 | 56 |
| Q3 2023 | 78 |
| Q4 2023 | 104 |
| Q1 2024 | 120 |
| Q2 2024 | 135 |
| Q3 2024 | 141 |
| Q4 2024 | 158 |
| Q1 2025 | 147 |
| Q2 2025 | 147 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 50 | 26 |
| Q4 2023 | 65 | 46 |
| Q1 2024 | 78 | 57 |
| Q2 2024 | 84 | 66 |
| Q3 2024 | 83 | 70 |
| Q4 2024 | 100 | 69 |
| Q1 2025 | 90 | 78 |
| Q2 2025 | 103 | 66 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $28.9m | $21.5m | 0.74 |
| Q4 2024 | $140.2m | $99.7m | 0.71 |
| Q1 2025 | $23.8m | $19.6m | 0.82 |
| Q2 2025 | $69.0m | $34.3m | 0.50 |
Biggest buyers
| NEUBERGER BERMAN GROUP LLC | Added | +1.8m |
| VANGUARD GROUP INC | Added | +1.3m |
| CloudAlpha Capital Management Limited/Hong Kong | Added | +1.1m |
| Driehaus Capital Management LLC | New | +940.9k |
| BlackRock, Inc. | Added | +765.8k |
| OBERWEIS ASSET MANAGEMENT INC/ | Added | +503.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +474.7k |
| Portolan Capital Management, LLC | New | +455.3k |
| ROYAL BANK OF CANADA | Added | +433.0k |
| CAPITAL FUND MANAGEMENT S.A. | Added | +369.6k |
Biggest sellers
| D. E. Shaw & Co., Inc. | Reduced | -1.5m |
| Assenagon Asset Management S.A. | Sold out | -976.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold out | -753.8k |
| Point72 Hong Kong Ltd | Sold out | -742.7k |
| NOMURA HOLDINGS INC | Reduced | -543.9k |
| MORGAN STANLEY | Reduced | -491.0k |
| Alyeska Investment Group, L.P. | Sold out | -485.7k |
| CITADEL ADVISORS LLC | Sold out | -480.0k |
| JANE STREET GROUP, LLC | Reduced | -459.4k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -359.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.7m495.1k shares |
| JANE STREET GROUP, LLC | Added | $10.8m421.6k shares |
| IMC-Chicago, LLC | Added | $8.2m320.7k shares |
| GROUP ONE TRADING LLC | Added | $7.0m272.5k shares |
| CITADEL ADVISORS LLC | Reduced | $6.4m248.7k shares |
| PEAK6 LLC | Added | $4.3m165.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $4.1m159.4k shares |
| WOLVERINE TRADING, LLC | Added | $3.8m145.3k shares |
| D. E. Shaw & Co., Inc. | New | $3.1m119.9k shares |
| Cubist Systematic Strategies, LLC | Added | $1.9m74.1k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $7.8m301.8k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | $6.4m250.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.5m176.2k shares |
| JANE STREET GROUP, LLC | Added | $2.4m92.3k shares |
| D. E. Shaw & Co., Inc. | Reduced | $2.3m89.4k shares |
| Cubist Systematic Strategies, LLC | Added | $2.2m85.7k shares |
| PEAK6 LLC | Added | $1.8m70.4k shares |
| Walleye Capital LLC | Added | $1.8m69.7k shares |
| WOLVERINE TRADING, LLC | Reduced | $1.6m60.5k shares |
| Walleye Trading LLC | Added | $1.5m56.9k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Marex Securities Products Inc. 13G · passive investor new · filed 2026-05-13 | 5.6% |
Fell to 5% or below in the last year: BlackRock, Inc. (4.9%, 2026-10-27), JANE STREET GROUP, LLC (2.4%, 2026-08-10), Invesco Ltd. (2.7%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-26)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 1 | $667.7k | 5 | $2.5m | — |
| Q4 2023 | 0 | — | 1 | $958.3k | — |
| Q1 2024 | 3 | $802.4k | 1 | $341.6k | — |
| Q2 2024 | 1 | $103.3k | 0 | — | — |
| Q3 2024 | 0 | — | 1 | $150.2k | — |
| Q4 2024 | 0 | — | 7 | $4.5m | $352.7k |
| Q1 2025 | 0 | — | 2 | $622.8k | $622.8k |
| Q2 2025 | 1 | $386.2k | 3 | $765.3k | $92.7k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-16 | Murry Stefan J. Chief Financial Officer | Sold plan | $32.1k2.0k shares |
| 2025-05-16 | Murry Stefan J. Chief Financial Officer | Sold plan | $38.7k2.0k shares |
| 2025-05-14 | Kuo David C Officer | Sold | $218.2k11.4k shares |
| 2025-05-13 | Chang Hung-Lun (Fred) Officer | Sold | $454.3k23.8k shares |
| 2025-05-13 | Lin Chih-Hsiang (Thompson) President and CEO, director | Bought | $386.2k21.2k shares |
| 2025-04-16 | Murry Stefan J. Chief Financial Officer | Sold plan | $21.9k2.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 4.2m $109.1m | Added +765.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 4.1m $104.6m | Added +1.3m |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 2.7m $69.8m | Added +1.8m |
| OBERWEIS ASSET MANAGEMENT INC/ 2.11% of their portfolio | 1.9m $48.5m | Added +503.2k |
| CloudAlpha Capital Management Limited/Hong Kong 4.46% of their portfolio | 1.4m $36.2m | Added +1.1m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.3m $33.0m | Added +203.8k |
| STATE STREET CORP 0.00% of their portfolio | 1.2m $31.4m | Added +110.1k |
| UBS Group AG 0.01% of their portfolio | 1.0m $26.2m | Added +96.6k |
| TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio | 978.0k $25.1m | Added +150.8k |
| Driehaus Capital Management LLC 0.19% of their portfolio | 940.9k $24.2m | New |
| MORGAN STANLEY 0.00% of their portfolio | 926.7k $23.8m | Reduced -491.0k |
| ROYCE & ASSOCIATES LP 0.24% of their portfolio | 906.7k $23.3m | Added +30.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 769.2k $19.8m | Reduced -1.5m |
| CITIGROUP INC 0.01% of their portfolio | 725.1k $18.6m | Reduced -339.3k |
| EMERALD ADVISERS, LLC 0.58% of their portfolio | 620.3k $15.9m | Added +23.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 541.1k $13.9m | Added +474.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 491.6k $12.6m | Reduced -318.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 483.6k $12.4m | Added +73.5k |
| TUDOR INVESTMENT CORP ET AL 0.09% of their portfolio | 476.7k $12.2m | Added +17.9k |
| Portolan Capital Management, LLC 0.73% of their portfolio | 455.3k $11.7m | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 436.5k $11.2m | Added +433.0k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 426.7k $11.0m | Added +27.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 414.9k $10.7m | Reduced -148.1k |
| CAPITAL FUND MANAGEMENT S.A. 0.12% of their portfolio | 413.6k $10.6m | Added +369.6k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.58% of their portfolio | 371.0k $9.5m | Unchanged |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.06% of their portfolio | 341.2k $8.8m | Added +62.4k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 337.3k $8.7m | Added +153.9k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 284.1k $7.2m | New |
| BARCLAYS PLC 0.00% of their portfolio | 244.0k $6.3m | Added +114.9k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.33% of their portfolio | 238.9k $6.1m | Added +54.5k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 184.2k $4.7m | Added +85.2k |
| Jump Financial, LLC 0.05% of their portfolio | 173.3k $4.5m | Added +124.7k |
| Squarepoint Ops LLC 0.01% of their portfolio | 166.7k $4.3m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 163.8k $4.2m | Added +39.4k |
| Y-Intercept (Hong Kong) Ltd 0.10% of their portfolio | 153.1k $3.9m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 149.5k $3.8m | Added +20.0k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 135.3k $3.5m | Added +43.2k |
| Zweig-DiMenna Associates LLC 0.36% of their portfolio | 135.0k $3.5m | New |
| Nuveen, LLC 0.00% of their portfolio | 120.7k $3.1m | Added +13.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 114.7k $2.9m | Reduced -46.5k |
| E Fund Management Co., Ltd. 0.14% of their portfolio | 114.4k $2.9m | New |
| GF FUND MANAGEMENT CO. LTD. 0.06% of their portfolio | 110.0k $2.8m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 107.5k $2.8m | Added +40.3k |
| Swiss National Bank 0.00% of their portfolio | 91.2k $2.3m | Added +3.0k |
| GROUP ONE TRADING LLC 0.07% of their portfolio | 82.0k $2.1m | Reduced -32.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 78.5k $2.0m | Added +17.5k |
| GILDER GAGNON HOWE & CO LLC 0.02% of their portfolio | 70.7k $1.8m | New |
| Legal & General Group Plc 0.00% of their portfolio | 64.7k $1.7m | Added +20.6k |
| Invesco Ltd. 0.00% of their portfolio | 60.8k $1.6m | Added +20.3k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.03% of their portfolio | 60.3k $1.5m | New |
| NOMURA HOLDINGS INC 0.01% of their portfolio | 59.6k $1.5m | Reduced -543.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 56.2k $1.4m | Added +15.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 55.4k $1.4m | Added +18.9k |
| Marex Group Ltd 0.03% of their portfolio | 55.3k $1.4m | New |
| FMR LLC 0.00% of their portfolio | 46.9k $1.2m | Added +40.4k |
| Walleye Capital LLC 0.01% of their portfolio | 44.9k $1.2m | Added +15.3k |
| GAMCO INVESTORS, INC. ET AL 0.01% of their portfolio | 41.5k $1.1m | Reduced -6.0k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 37.1k $952.5k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 36.5k $939.0k | Added +8.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 36.3k $932.3k | Added +3.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 35.8k $919.5k | Added +5.3k |
| Eschler Asset Management LLP 0.65% of their portfolio | 33.3k $856.3k | New |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 33.1k $851.2k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 32.1k $825.8k | Added +7.9k |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 31.0k $796.0k | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 30.8k $790.9k | Reduced -9.3k |
| China Universal Asset Management Co., Ltd. 0.07% of their portfolio | 30.0k $770.7k | Reduced -10.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 29.5k $756.8k | Added +3.9k |
| Gerber Kawasaki Wealth & Investment Management 0.03% of their portfolio | 27.9k $718.0k | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 27.5k $706.8k | Added +5.6k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.03% of their portfolio | 24.5k $629.9k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 22.7k $583.1k | Reduced -459.4k |
| Truvestments Capital LLC 0.11% of their portfolio | 22.3k $572.4k | Added +2.7k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 20.9k $536.9k | New |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 18.8k $482.7k | Unchanged |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 18.8k $482.2k | Added +4.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 17.0k $436.7k | Added +4.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 14.7k $377.4k | Reduced -8.2k |
| Cetera Investment Advisers 0.00% of their portfolio | 14.7k $376.7k | New |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 13.9k $357.7k | Added +886 |
| Chung Wu Investment Group, LLC 0.36% of their portfolio | 13.4k $344.2k | New |
| Southland Equity Partners LLC 0.07% of their portfolio | 12.5k $321.3k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 12.2k $314.1k | Added +3.4k |
| WHITE PINE CAPITAL LLC 0.10% of their portfolio | 12.2k $313.6k | Added +191 |
| Scientech Research LLC 0.07% of their portfolio | 11.8k $302.5k | New |
| Kovack Advisors, Inc. 0.03% of their portfolio | 11.7k $299.4k | New |
| WOLVERINE ASSET MANAGEMENT LLC 0.00% of their portfolio | 11.6k $297.4k | Reduced -51.6k |
| LPL Financial LLC 0.00% of their portfolio | 11.5k $296.1k | Added +597 |
| Sovereign Financial Group, Inc. 0.06% of their portfolio | 11.2k $286.8k | New |
| ProShare Advisors LLC 0.00% of their portfolio | 11.0k $283.2k | New |
| Quadrature Capital Ltd 0.00% of their portfolio | 10.6k $273.2k | New |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 10.5k $269.7k | Added +3.4k |
| WOLVERINE TRADING, LLC 0.01% of their portfolio | 9.0k $236.9k | Reduced -37.5k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 8.8k $227.0k | Added +8.6k |
| SHERBROOKE PARK ADVISERS LLC 0.10% of their portfolio | 8.7k $224.0k | New |
| GUGGENHEIM CAPITAL LLC 0.00% of their portfolio | 8.2k $210.3k | Reduced -6.3k |
| Blueshift Asset Management, LLC 0.06% of their portfolio | 8.1k $208.7k | Reduced -10.8k |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 8.1k $208.0k | New |
| AXQ CAPITAL, LP 0.07% of their portfolio | 7.9k $203.0k | New |
| Caption Management, LLC 0.02% of their portfolio | 7.6k $195.2k | Reduced -2.4k |