144 0001587462 XXXXXXXX LIVE 0001158114 APPLIED OPTOELECTRONICS, INC. 001-36083 13139 JESS PIRTLE BLVD SUGAR LAND TX 77478 281-295-1800 Chang Hung-Lun (Fred) Officer Common Raymond James & Associates, Inc.

880 Carillon Parkway SAINT PETERSBURG FL 33716

32172 3545727.60 84906289 09/08/2026 Nasdaq Common 05/19/2026 PSU Issuer N 32172 05/19/2026 N/A N Hung-Lun Chang

5515 Regency Dr. Sugar Land TX 77479

Common 06/12/2026 34000 5662149.00 Hung-Lun

5515 Regency Dr. Sugar Land TX 77479

Common 06/17/2026 40329 6880027.00 Original Accession Number 0001974078-26-000346 09/08/2026 Tracey Cornelison, as duly authorized representative of Raymond James & Associates, Inc., as attorney-in-fact for Hung-Lun Chang