Amphastar Pharmaceuticals, Inc.

STATE OF WISCONSIN INVESTMENT BOARD AMPH

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

17,506

Value ($000)

469

Weight

0.0%

2019 Q4 - 2025 Q4 (25 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	469	0.0%	17,506	12/31/2025
2025 Q3	11/14/2025	569	0.0%	21,334	9/30/2025
2025 Q2	8/14/2025	582	0.0%	25,332	6/30/2025
2025 Q1	5/15/2025	742	0.0%	25,592	3/31/2025
2024 Q4	2/14/2025	952	0.0%	25,649	12/31/2024
2024 Q3	11/14/2024	2,874	0.0%	59,231	9/30/2024
2024 Q2	8/14/2024	1,252	0.0%	31,296	6/30/2024
2024 Q1	5/14/2024	3,417	0.0%	77,828	3/31/2024
2023 Q4	2/12/2024	2,646	0.0%	42,774	12/31/2023
2023 Q3	11/14/2023	1,978	0.0%	43,003	9/30/2023
2023 Q2	8/14/2023	1,920	0.0%	33,409	6/30/2023
2023 Q1	5/15/2023	1,321	0.0%	35,239	3/31/2023
2022 Q4	2/14/2023	1,101	0.0%	39,291	12/31/2022
2022 Q3	11/14/2022	1,098	0.0%	39,081	9/30/2022
2022 Q2	8/15/2022	1,446	0.0%	41,568	6/30/2022
2022 Q1	5/13/2022	1,817	0.0%	50,600	3/31/2022
2021 Q4	2/11/2022	1,178	0.0%	50,600	12/31/2021
2021 Q3	11/12/2021	962	0.0%	50,600	9/30/2021
2021 Q2	8/12/2021	1,020	0.0%	50,600	6/30/2021
2021 Q1	5/17/2021	927	0.0%	50,600	3/31/2021
2020 Q4	2/3/2021	1,018	0.0%	50,600	12/31/2020
2020 Q3	11/16/2020	1,067	0.0%	56,900	9/30/2020
2020 Q2	8/12/2020	1,278	0.0%	56,900	6/30/2020
2020 Q1	5/6/2020	821	0.0%	55,300	3/31/2020
2019 Q4	2/14/2020	1,038	0.0%	53,800	12/31/2019