AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 665,336 Value ($000) $17,818 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 288,585 Value ($000) $7,691 Avg Close $25.82 Range $20.39 - $31.26

Q2 2025

Shares 233,161 Value ($000) $5,353 Avg Close $24.82 Range $22.64 - $29.27

Q1 2025

Shares 307,993 Value ($000) $8,929 Avg Close $31.94 Range $25.89 - $39.01

Q4 2024

Shares 472,017 Value ($000) $17,526 Avg Close $45.73 Range $36.48 - $53.96

Q3 2024

Shares 639,592 Value ($000) $31,039 Avg Close $43.89 Range $36.56 - $50.62

Q2 2024

Shares 740,408 Value ($000) $29,616 Avg Close $41.44 Range $38.43 - $46.62

Q1 2024

Shares 618,644 Value ($000) $27,165 Avg Close $51.65 Range $42.16 - $65.92

Q4 2023

Shares 337,690 Value ($000) $20,886 Avg Close $52.53 Range $43.79 - $63.67

Q3 2023

Shares 200,277 Value ($000) $9,211 Avg Close $54.55 Range $44.86 - $67.66

Q2 2023

Shares 131,609 Value ($000) $7,564 Avg Close $44.33 Range $35.62 - $58.70

Q1 2023

Shares 120,821 Value ($000) $4,551 Avg Close $32.78 Range $27.58 - $38.22

Q4 2022

Shares 38,800 Value ($000) $1,087 Avg Close $29.04 Range $26.76 - $31.64

Q3 2022

Shares 55,980 Value ($000) $1,573 Avg Close $32.65 Range $27.10 - $39.07

Q2 2022

Shares 45,293 Value ($000) $1,576 Avg Close $35.69 Range $28.64 - $44.46

Q1 2022

Shares 78,230 Value ($000) $2,808 Avg Close $28.36 Range $22.07 - $37.16

Q4 2021

Shares 93,512 Value ($000) $2,178 Avg Close $20.45 Range $18.12 - $23.85

Q3 2021

Shares 84,221 Value ($000) $1,601 Avg Close $19.59 Range $17.56 - $21.63

Q2 2021

Shares 93,288 Value ($000) $1,881 Avg Close $18.84 Range $16.91 - $20.94

Q2 2016

Shares 28,967 Value ($000) $467 Avg Close $14.11 Range $11.41 - $16.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	665,336	$17,818	$25.76	$22.94 - $29.00
Q3 2025	288,585	$7,691	$25.82	$20.39 - $31.26
Q2 2025	233,161	$5,353	$24.82	$22.64 - $29.27
Q1 2025	307,993	$8,929	$31.94	$25.89 - $39.01
Q4 2024	472,017	$17,526	$45.73	$36.48 - $53.96
Q3 2024	639,592	$31,039	$43.89	$36.56 - $50.62
Q2 2024	740,408	$29,616	$41.44	$38.43 - $46.62
Q1 2024	618,644	$27,165	$51.65	$42.16 - $65.92
Q4 2023	337,690	$20,886	$52.53	$43.79 - $63.67
Q3 2023	200,277	$9,211	$54.55	$44.86 - $67.66
Q2 2023	131,609	$7,564	$44.33	$35.62 - $58.70
Q1 2023	120,821	$4,551	$32.78	$27.58 - $38.22
Q4 2022	38,800	$1,087	$29.04	$26.76 - $31.64
Q3 2022	55,980	$1,573	$32.65	$27.10 - $39.07
Q2 2022	45,293	$1,576	$35.69	$28.64 - $44.46
Q1 2022	78,230	$2,808	$28.36	$22.07 - $37.16
Q4 2021	93,512	$2,178	$20.45	$18.12 - $23.85
Q3 2021	84,221	$1,601	$19.59	$17.56 - $21.63
Q2 2021	93,288	$1,881	$18.84	$16.91 - $20.94
Q2 2016	28,967	$467	$14.11	$11.41 - $16.78