Chih-Hsiang (thompson) Lin - 31 Jul 2026 Form 4 Insider Report for APPLIED OPTOELECTRONICS, INC. (AAOI)

Reporting relationship: President and CEO, Director
Issuer ticker: AAOI
Reported as of: 31 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Aug 2026, 17:05:43 UTC
Prior SEC filing: 23 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ David C. Kuo, attorney in fact for Chih-Hsiang (Thompson) Lin

Key filing fact

Chih-Hsiang (thompson) Lin filed Form 4 for APPLIED OPTOELECTRONICS, INC. (AAOI) on 04 Aug 2026.

Key facts

This page summarizes Chih-Hsiang (thompson) Lin's Form 4 filing for APPLIED OPTOELECTRONICS, INC. (AAOI).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 04 Aug 2026, 17:05.

Change

Previous filing in this sequence was filed on 23 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001587420 Primary reporting owner

Lin Chih-Hsiang (Thompson)

Relationship: President and CEO, Director
Address: C/O APPLIED OPTOELECTRONICS, INC., 13139 JESS PIRTLE BLVD., SUGAR LAND
Signature: /s/ David C. Kuo, attorney in fact for Chih-Hsiang (Thompson) Lin
Signature date: 04 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AAOI transaction

Common Stock, $.001 par value

Award

Transaction value
Shares: +9,251
Change %: +0.72%
Price: $0.000000^*
Shares after: 1,296,047
Date: 31 Jul 2026
Ownership: Direct
Footnotes: F1

AAOI holding

Common Stock, $.001 par value

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 807,602
Date: 31 Jul 2026
Ownership: By Thompson Lin Family Trust
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Restricted Stock Units (RSUs) were granted under the Company's 2026 Equity Incentive Plan, one-sixteen of the RSUs vest every three months and the first vesting occurs on January 21, 2027.

Footnote F2

The securities indirectly held in the Family Trust through the ownership of interests in the LLC are for the benefit of the reporting person's heirs. The reporting person is the settlor of the irrevocable Family Trust, where The Bryn Mawr Trust Company of Delaware serves as trustee which may be replaced at the discretion of the reporting person. The reporting person disclaims beneficial ownership of these securities except to the extent of his voting power therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.