NPK International Inc.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM NPKI

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

80,829

Value ($000)

963

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	963	0.0%	80,829	12/31/2025
2025 Q3	11/14/2025	858	0.0%	75,849	9/30/2025
2025 Q2	8/14/2025	646	0.0%	75,858	6/30/2025
2025 Q1	5/15/2025	448	0.0%	77,042	3/31/2025
2024 Q4	3/18/2025	591	0.0%	77,042	12/31/2024
2024 Q3	4/4/2025	531	0.0%	76,669	9/30/2024
2024 Q2	4/8/2025	657	0.0%	79,117	6/30/2024
2024 Q1	5/16/2024	579	0.0%	80,179	3/31/2024
2023 Q4	2/13/2024	571	0.0%	85,979	12/31/2023
2023 Q3	11/14/2023	114	0.0%	16,519	9/30/2023
2023 Q2	8/21/2023	132	0.0%	25,268	6/30/2023
2023 Q1	5/9/2023	123	0.0%	32,072	3/31/2023
2022 Q4	2/14/2023	143	0.0%	34,437	12/31/2022
2022 Q3	11/21/2022	86	0.0%	34,049	9/30/2022
2022 Q2	8/15/2022	112	0.0%	36,242	6/30/2022
2022 Q1	5/16/2022	141	0.0%	38,644	3/31/2022
2021 Q4	2/15/2022	148	0.0%	50,185	12/31/2021
2021 Q3	11/15/2021	159	0.0%	48,232	9/30/2021
2021 Q2	8/16/2021	425	0.0%	122,766	6/30/2021
2021 Q1	5/18/2021	425	0.0%	135,395	3/31/2021
2020 Q4	2/16/2021	264	0.0%	137,477	12/31/2020
2020 Q3	11/17/2020	144	0.0%	137,477	9/30/2020
2020 Q2	8/17/2020	307	0.0%	137,477	6/30/2020
2020 Q1	5/13/2020	123	0.0%	137,477	3/31/2020
2019 Q4	2/14/2020	852	0.0%	135,893	12/31/2019
2014 Q1	5/8/2014	1,792	0.0%	156,550	3/31/2014
2013 Q4	2/10/2014	1,917	0.0%	155,950	12/31/2013