Hung-Lun (fred) Chang - 13 May 2025 Form 4 Insider Report for APPLIED OPTOELECTRONICS, INC. (AAOI)

Role: *** Senior Vice President and North America General Manager.
Signature: /s/ David C. Kuo, attorney in fact for Hung-Lun (Fred) Chang
Issuer symbol: AAOI
Transactions as of: 13 May 2025
Net transactions value: -$454,278
Form type: 4
Filing time: 14 May 2025, 18:44:57 UTC
Previous filing: 13 May 2025
Next filing: 24 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Chang Hung-Lun (Fred)	*** Senior Vice President and North America General Manager.	C/O APPLIED OPTOELECTRONICS, INC., 13139 JESS PIRTLE BLVD., SUGAR LAND	/s/ David C. Kuo, attorney in fact for Hung-Lun (Fred) Chang	14 May 2025	0001587462

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AAOI	Common Stock, $.001 par value	Sale	$454,278	-23,837	-7.9%	$19.06	278,842	13 May 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares were sold in multiple transactions on May 13, 2025 at actual sales prices ranging from $18.65 to $19.25 per share. The price reflects the weighted average sale prices 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 at each separate price.

Remarks:

*** Senior Vice President and North America General Manager.