Chih-Hsiang (thompson) Lin - 22 Jan 2026 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 Jan 2026
Net transactions value
-$831,771
Form type
4
Filing time
26 Jan 2026, 19:02:50 UTC
Previous filing
24 Oct 2025
Next filing
11 Feb 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 26 Jan 2026 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 $239,107 -6,230 -0.38% $38.38 1,638,160 22 Jan 2026 Direct F1
transaction AAOI Common Stock, $.001 par value Tax liability $381,190 -9,932 -0.61% $38.38 1,628,228 22 Jan 2026 Direct F2
transaction AAOI Common Stock, $.001 par value Tax liability $101,553 -2,646 -0.16% $38.38 1,625,582 22 Jan 2026 Direct F3
transaction AAOI Common Stock, $.001 par value Tax liability $109,920 -2,864 -0.18% $38.38 1,622,718 22 Jan 2026 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.