Chih-Hsiang (thompson) Lin - 22 Oct 2025 Form 4 Insider Report for APPLIED OPTOELECTRONICS, INC. (AAOI)

Role
President and CEO, Director
Signature
/s/ David C. Kuo, attorney in fact for Chih-Hsiang (Thompson) Lin
Issuer symbol
AAOI
Transactions as of
22 Oct 2025
Net transactions value
-$637,940
Form type
4
Filing time
24 Oct 2025, 16:02:25 UTC
Previous filing
15 Aug 2025
Next filing
26 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lin Chih-Hsiang (Thompson) President and CEO, Director C/O APPLIED OPTOELECTRONICS, INC., 13139 JESS PIRTLE BLVD., SUGAR LAND /s/ David C. Kuo, attorney in fact for Chih-Hsiang (Thompson) Lin 24 Oct 2025 0001587420

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AAOI Common Stock, $.001 par value Tax liability $183,399 -5,491 -0.33% $33.40 1,657,999 22 Oct 2025 Direct F1
transaction AAOI Common Stock, $.001 par value Tax liability $292,350 -8,753 -0.53% $33.40 1,649,246 22 Oct 2025 Direct F2
transaction AAOI Common Stock, $.001 par value Tax liability $77,889 -2,332 -0.14% $33.40 1,646,914 22 Oct 2025 Direct F3
transaction AAOI Common Stock, $.001 par value Tax liability $84,302 -2,524 -0.15% $33.40 1,644,390 22 Oct 2025 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects shares surrendered to the Issuer to satisfy tax-withholding obligations upon the vesting of restricted stock unit award granted on June 27, 2022.
F2 Reflects shares surrendered to the Issuer to satisfy tax-withholding obligations upon the vesting of restricted stock unit award granted on June 26, 2023.
F3 Reflects shares surrendered to the Issuer to satisfy tax-withholding obligations upon the vesting of restricted stock unit award granted on April 29, 2024.
F4 Reflects shares surrendered to the Issuer to satisfy tax-withholding obligations upon the vesting of restricted stock unit award granted on April 11, 2025.