Applied Optoelectronics furnishes Q3 2025 results via 8-K Exhibit 99.1

Rhea-AI Filing Summary

Applied Optoelectronics, Inc. (AAOI) announced third‑quarter results by issuing a press release for the period ended September 30, 2025. The company furnished the release as part of an 8‑K dated November 6, 2025.

The company stated the information under Item 2.02 and the attached exhibits is furnished and not deemed filed under the Exchange Act. The press release is included as Exhibit 99.1; the cover page interactive data is provided as Exhibit 104.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 6, 2025

Applied Optoelectronics, Inc.

(Exact name of registrant as specified in its charter)

Delaware	001-36083	76-0533927
(State of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

13139 Jess Pirtle Blvd.
Sugar Land, Texas 77478

(Address of principal executive offices and zip code)

(281) 295-1800

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Trading Name of each exchange on which registered
Common Stock, Par value $0.001	AAOI	NASDAQ Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

On November 6, 2025 Applied Optoelectronics, Inc. (the “Company”) issued a press release regarding the Company’s financial results for the third quarter ended September 30, 2025. A copy of the Company’s press release is attached as Exhibit 99.1 to this Form 8-K.

The information furnished in this Current Report under this Item 2.02 and the exhibits attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

(d) Exhibits

Exhibit Number	Description
99.1	Press release dated November 6, 2025, issued by Applied Optoelectronics, Inc., filed herewith.
104	Cover Page Interactive File (the cover page tags are embedded within the Inline XBRL document).

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 6, 2025	Applied Optoelectronics, Inc.
	By:	/s/ Stefan J. Murry
		Stefan J. Murry
		Chief Financial Officer

3

FAQ

What did AAOI disclose in this 8-K?

AAOI furnished a press release announcing its Q3 2025 financial results for the period ended September 30, 2025.

When was the AAOI 8-K filed?

The report is dated November 6, 2025.

Which exhibit contains AAOI’s Q3 2025 press release?

The press release is attached as Exhibit 99.1.

Is the information considered filed or furnished?

The company states the Item 2.02 information and exhibits are furnished and not deemed filed under the Exchange Act.

What is AAOI’s trading symbol and exchange?

AAOI trades on the NASDAQ Global Market under the symbol AAOI.

Who signed the 8-K for AAOI?

It was signed by Stefan J. Murry, Chief Financial Officer.