David C. Kuo - 12 Jun 2026 Form 4 Insider Report for APPLIED OPTOELECTRONICS, INC. (AAOI)

Reporting relationship: ***Senior Vice President and Chief Legal Officer
Issuer ticker: AAOI
Reported as of: 12 Jun 2026
Net transaction value: -$4,867,172
SEC form: 4
Accepted by SEC: 16 Jun 2026, 16:51:27 UTC
Prior SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/ David C. Kuo

Key filing fact

David C. Kuo filed Form 4 for APPLIED OPTOELECTRONICS, INC. (AAOI) on 16 Jun 2026.

Key facts

This page summarizes David C. Kuo's Form 4 filing for APPLIED OPTOELECTRONICS, INC. (AAOI).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Jun 2026, 16:51.

Change

Previous filing in this sequence was filed on 19 May 2026.
Current net transaction value: -$4,867,172.

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 0001587422 Primary reporting owner

Kuo David C

Relationship: ***Senior Vice President and Chief Legal Officer
Address: C/O APPLIED OPTOELECTRONICS, INC., 13139 JESS PIRTLE BLVD., SUGAR LAND
Signature: /s/ David C. Kuo
Signature date: 16 Jun 2026

Reported non-derivative transactions

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

AAOI transaction

Common Stock, $.001 par value

Tax liability

Transaction value
Shares: -19,065
Change %: -9.7%
Price: $172.78^*
Shares after: 178,305
Date: 12 Jun 2026
Ownership: Direct
Footnotes: F1

AAOI transaction

Common Stock, $.001 par value

Sale

Transaction value: $4,867,172
Shares: -29,227
Change %: -16%
Price: $166.53
Shares after: 149,078
Date: 12 Jun 2026
Ownership: Direct
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

Consists of shares withheld to satisfy applicable tax withholding obligations.

Footnote F2

The shares were sold in multiple transactions on June 12, 2026, at sale prices ranging from $163.78 to $171.8 per share. The price reported reflects the weighted average sale price for the transactions. The reporting person undertakes to provide upon request by SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold during each transaction.

SEC remarks

***Senior Vice President and Chief Legal Officer