Amkor Technology, Inc.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM AMKR

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

117,973

Value ($000)

4,658

Weight

0.0%

2013 Q4 - 2025 Q4 (27 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/17/2026	4,658	0.0%	117,973	12/31/2025
2025 Q3	11/14/2025	3,304	0.0%	116,323	9/30/2025
2025 Q2	8/14/2025	2,157	0.0%	102,776	6/30/2025
2025 Q1	5/15/2025	1,839	0.0%	101,817	3/31/2025
2024 Q4	3/18/2025	2,669	0.0%	103,893	12/31/2024
2024 Q3	4/4/2025	3,213	0.0%	104,992	9/30/2024
2024 Q2	4/8/2025	4,334	0.0%	108,289	6/30/2024
2024 Q1	5/16/2024	3,593	0.0%	111,435	3/31/2024
2023 Q4	2/13/2024	3,908	0.0%	117,468	12/31/2023
2023 Q3	11/14/2023	2,720	0.0%	120,367	9/30/2023
2023 Q2	8/21/2023	3,908	0.0%	131,365	6/30/2023
2023 Q1	5/9/2023	3,502	0.0%	134,607	3/31/2023
2022 Q4	2/14/2023	3,271	0.0%	136,386	12/31/2022
2022 Q3	11/21/2022	2,299	0.0%	134,865	9/30/2022
2022 Q2	8/15/2022	2,333	0.0%	137,669	6/30/2022
2022 Q1	5/16/2022	2,986	0.0%	137,495	3/31/2022
2021 Q4	2/15/2022	3,675	0.0%	148,227	12/31/2021
2021 Q3	11/15/2021	3,620	0.0%	145,077	9/30/2021
2021 Q2	8/16/2021	3,329	0.0%	140,645	6/30/2021
2021 Q1	5/18/2021	3,570	0.0%	150,572	3/31/2021
2020 Q4	2/16/2021	2,277	0.0%	150,981	12/31/2020
2020 Q3	11/17/2020	1,690	0.0%	150,855	9/30/2020
2020 Q2	8/17/2020	1,852	0.0%	150,411	6/30/2020
2020 Q1	5/13/2020	1,156	0.0%	148,360	3/31/2020
2019 Q4	2/14/2020	1,949	0.0%	149,956	12/31/2019
2014 Q1	5/8/2014	871	0.0%	126,908	3/31/2014
2013 Q4	2/10/2014	778	0.0%	126,908	12/31/2013