Cynthia DeLaney - 04 Mar 2026 Form 4 Insider Report for APPLIED OPTOELECTRONICS, INC. (AAOI)

Role: Director
Signature: /s/ David C. Kuo for Cynthia DeLaney
Issuer symbol: AAOI
Transactions as of: 04 Mar 2026
Net transactions value: -$2,058,344
Form type: 4
Filing time: 05 Mar 2026, 17:47:00 UTC
Previous filing: 17 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DeLaney Cynthia	Director	C/O APPLIED OPTOELECTRONICS, INC., 13139 JESS PIRTLE BLVD., SUGAR LAND	/s/ David C. Kuo for Cynthia DeLaney	05 Mar 2026	0001865629

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AAOI	Common Stock, $.001 par value	Sale	$2,058,344	-21,000	-15%	$98.02	116,222	04 Mar 2026	Direct	F1
holding	AAOI	Common Stock, $.001 par value						2,380	04 Mar 2026	By Spouse	F2

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

Explanation of Responses:

Id	Content
F1	The shares were sold in multiple transactions on March 04, 2026 at actual sale prices ranging from $97.3801 to $98.5150 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
F2	Held directly by Norman Stephan Kinsella, the spouse of Cynthia DeLaney. Ms. DeLaney disclaims beneficial ownership of all securities that may be deemed to be beneficially owned by her spouse, except to the extent of any indirect pecuniary interest therein.

Content

The shares were sold in multiple transactions on March 04, 2026 at actual sale prices ranging from $97.3801 to $98.5150 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

Held directly by Norman Stephan Kinsella, the spouse of Cynthia DeLaney. Ms. DeLaney disclaims beneficial ownership of all securities that may be deemed to be beneficially owned by her spouse, except to the extent of any indirect pecuniary interest therein.