As of November 6, 2026, Applied Optoelectronics Inc is a publicly traded company (Nasdaq: AAOI); its largest reported holder is Marex Securities Products Inc., with 5.6% on Schedule 13G of May 13, 2026, then Vanguard (5.09%). The largest insider holding is Lin Chih-Hsiang (Thompson), the chief executive and president, with 2,086,976 shares (2.3% of shares outstanding), per Form 4 of October 26, 2026 (Schedule 13G, May 13, 2026).
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Is Applied Optoelectronics Inc a real, registered company?
- Applied Optoelectronics Inc files with the SEC under CIK 1158114 (its SEC filings).
- Its shares are listed under the ticker AAOI on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Sugar Land, Texas, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Applied Optoelectronics Inc in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Vanguard (filed 2026-10-30).
Who are Applied Optoelectronics Inc's owners and officers?
Applied Optoelectronics Inc: incorporated in Delaware; business address in Sugar Land, Texas; industry Semiconductors & Related Devices (Schedule 13G, 2026-10-30).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-10-30 | Vanguard Capital Management | 5.09% |
| Schedule 13G/A, 2026-10-27 | Blackrock, Inc. | 4.9% |
| Schedule 13G/A, 2026-08-10 | Jane Street Group, LLC | 2.4% |
| Schedule 13G/A, 2026-07-27 | Blackrock, Inc. | 5.4% |
| Schedule 13G, 2026-05-13 | Marex Securities Products Inc. | 5.6% |
| Schedule 13G/A, 2026-05-06 | Invesco LTD. | 2.7% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-03-23 | Jane Street Group, LLC | 5.3% |
| Schedule 13G, 2026-02-12 | Invesco LTD. | 5.1% |
| Schedule 13G/A, 2025-11-04 | Jpmorgan Chase & Co. | 4.4% |
| Schedule 13G, 2025-10-17 | Jpmorgan Chase & Co. | 7.5% |
| Schedule 13G/A, 2025-07-29 | The Vanguard Group | 7.25% |
Questions about who owns Applied Optoelectronics Inc
Who owns Applied Optoelectronics Inc?
On this page, 2 holders' latest ownership filings report 5% or more of Applied Optoelectronics Inc: Marex Securities Products Inc. (5.6%, Schedule 13G, filed 2026-05-13) and Vanguard Capital Management (5.09%, Schedule 13G, filed 2026-10-30).
Who are the largest shareholders of Applied Optoelectronics Inc?
By the share each holder's latest filing reports, the largest holders of Applied Optoelectronics Inc on this page are Marex Securities Products Inc. (5.6%) and Vanguard Capital Management (5.09%).
When did Marex Securities Products Inc. buy into Applied Optoelectronics Inc?
The filings give report dates, not purchase dates. The earliest filing from Marex Securities Products Inc. on this page is the Schedule 13G, filed 2026-05-13, reporting 5.6%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 12 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Applied Optoelectronics Inc shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- Lin Chih-Hsiang (Thompson), the chief executive and president: 2,086,976 shares (2.3% of shares outstanding), 1,279,374 held directly and 807,602 indirectly (Form 4, 2026-10-26).
- Yeh Shu-Hua (Joshua), the *** see remarks: 369,280 shares (0.41% of shares outstanding) (Form 4, 2026-10-26).
- , the chief financial officer: 357,223 shares (0.39% of shares outstanding) (Form 4, 2026-10-26).
- , a director: 254,672 shares (0.28% of shares outstanding) (Form 4, 2026-06-11).
- Chang Hung-Lun (Fred), the *** see remarks: 244,135 shares (0.27% of shares outstanding) (Form 4, 2026-10-26).
Shares outstanding: 90,770,732 as of 2026-11-02, from the company's latest SEC cover page.
How much has Applied Optoelectronics Inc raised?
No fundraising or offering filing from Applied Optoelectronics Inc is on file with us.
Keep reading
More on Applied Optoelectronics Inc and the records around it.
Applied Optoelectronics Inc elsewhere on the record
- 5%+ stake filings Oct 2026
Companies that share a holder
- Marex Securities Products Inc. also filed stake reports on 5 other companies: POET TECHNOLOGIES INC. (May 2026), AXT INC (May 2026), UPEXI, INC. (Jan 2026)
- JANE STREET GROUP, LLC also filed stake reports on 73 other companies: AXT INC (Nov 2026), BIOVIE INC. (Nov 2026), Bitdeer Technologies Group (Nov 2026)
- Invesco Ltd. also filed stake reports on 83 other companies: Alignment Healthcare Inc (Aug 2026), ArcBest Corp (Aug 2026), ARKO Petroleum Corp (Aug 2026)
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