Company: AAOI
Filing Date: 2025-02-28
Form Type: 424B5
Source: 0001104659-25-019109
Chunk: 22

Company: APPLIED OPTOELECTRONICS, INC.
Filing Date: 2025-02-28
Form: 424B5
Chunk 22
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 this prospectus and any prospectus supplement before investing in our securities. We also encourage you to read the documents to which we have referred you in the “Where To Learn More About Us” section of this prospectus for information on us and for our financial statements.

THIS PROSPECTUS MAY NOT BE USED TO SELL SECURITIES UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT DESCRIBING THE METHOD AND TERMS OF THE OFFERING OF SUCH SECURITIES.

INVESTING IN OUR SECURITIES INVOLVES A HIGH DEGREE OF RISK. RISKS ASSOCIATED WITH AN INVESTMENT IN OUR SECURITIES WILL BE DESCRIBED IN THE APPLICABLE PROSPECTUS SUPPLEMENT AND OUR PERIODIC AND OTHER REPORTS WE FILE WITH THE SECURITIES AND EXCHANGE COMMISSION, AS DESCRIBED IN “RISK FACTORS” ON PAGE 2. YOU SHOULD CAREFULLY CONSIDER THOSE RISK FACTORS BEFORE INVESTING.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ACCURACY OR ADEQUACY OF THE DISCLOSURES IN THE PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

<div align='center'>The date of this prospectus is December 18, 2024.</div>

TABLE OF CONTENTS

TABLE OF CONTENTS

| ​ | ABOUT THIS PROSPECTUS                                | ​ | ​ | ​ | ​ |  1 | ​ | ​ |
| ​ | RISK FACTORS                                         | ​ | ​ | ​ | ​ |  2 | ​ | ​ |
| ​ | THE COMPANY                                          | ​ | ​ | ​ | ​ |  2 | ​ | ​ |
| ​ | CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS | ​ | ​ | ​ | ​ |  3 | ​ | ​ |
| ​ | USE OF PROCEEDS                                      | ​ | ​ | ​ | ​ |  4 | ​ | ​ |
| ​ | DESCRIPTION OF SECURITIES TO BE OFFERED              | ​ | ​ | ​ | ​ |  4 | ​ | ​ |
| ​ | PLAN OF DISTRIBUTION                                 | ​ | ​ | ​ | ​ | 13 | ​ | ​ |
| ​ | LEGAL MATTERS