AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

FULLER & THALER ASSET MANAGEMENT, INC.'s Holding History (CIK: 0001082327)

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

Q4 2025

Shares 1,394,463 Value ($000) $37,344 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 1,353,927 Value ($000) $36,082 Avg Close $25.82 Range $20.39 - $31.26

Q2 2025

Shares 1,263,772 Value ($000) $29,016 Avg Close $24.82 Range $22.64 - $29.27

Q1 2025

Shares 1,263,598 Value ($000) $36,632 Avg Close $31.94 Range $25.89 - $39.01

Q4 2024

Shares 1,132,926 Value ($000) $42,066 Avg Close $45.73 Range $36.48 - $53.96

Q3 2024

Shares 1,260,767 Value ($000) $61,185 Avg Close $43.89 Range $36.56 - $50.62

Q2 2024

Shares 1,272,818 Value ($000) $50,913 Avg Close $41.44 Range $38.43 - $46.62

Q1 2024

Shares 1,274,178 Value ($000) $55,949 Avg Close $51.65 Range $42.16 - $65.92

Q4 2023

Shares 1,273,017 Value ($000) $78,736 Avg Close $52.53 Range $43.79 - $63.67

Q3 2023

Shares 1,275,214 Value ($000) $58,647 Avg Close $54.55 Range $44.86 - $67.66

Q2 2023

Shares 1,279,495 Value ($000) $73,533 Avg Close $44.33 Range $35.62 - $58.70

Q1 2023

Shares 811,694 Value ($000) $30,439 Avg Close $32.78 Range $27.58 - $38.22

Q4 2022

Shares 500,065 Value ($000) $14 Avg Close $29.04 Range $26.76 - $31.64

Q3 2022

Shares 715,181 Value ($000) $20,097 Avg Close $32.65 Range $27.10 - $39.07

Q2 2022

Shares 726,516 Value ($000) $25,275 Avg Close $35.69 Range $28.64 - $44.46

Q1 2022

Shares 614,855 Value ($000) $22,073 Avg Close $28.36 Range $22.07 - $37.16

Q4 2021

Shares 611,462 Value ($000) $14,241 Avg Close $20.45 Range $18.12 - $23.85

Q3 2021

Shares 401,100 Value ($000) $7,625 Avg Close $19.59 Range $17.56 - $21.63

Q2 2021

Shares 399,445 Value ($000) $8,053 Avg Close $18.84 Range $16.91 - $20.94

Q1 2021

Shares 397,950 Value ($000) $7,290 Avg Close $18.59 Range $17.11 - $20.93

Q4 2020

Shares 546,344 Value ($000) $10,987 Avg Close $19.46 Range $17.51 - $21.38

Q3 2020

Shares 817,515 Value ($000) $15,328 Avg Close $20.14 Range $17.83 - $22.69

Q2 2020

Shares 815,129 Value ($000) $18,308 Avg Close $18.31 Range $14.00 - $22.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,394,463	$37,344	$25.76	$22.94 - $29.00
Q3 2025	1,353,927	$36,082	$25.82	$20.39 - $31.26
Q2 2025	1,263,772	$29,016	$24.82	$22.64 - $29.27
Q1 2025	1,263,598	$36,632	$31.94	$25.89 - $39.01
Q4 2024	1,132,926	$42,066	$45.73	$36.48 - $53.96
Q3 2024	1,260,767	$61,185	$43.89	$36.56 - $50.62
Q2 2024	1,272,818	$50,913	$41.44	$38.43 - $46.62
Q1 2024	1,274,178	$55,949	$51.65	$42.16 - $65.92
Q4 2023	1,273,017	$78,736	$52.53	$43.79 - $63.67
Q3 2023	1,275,214	$58,647	$54.55	$44.86 - $67.66
Q2 2023	1,279,495	$73,533	$44.33	$35.62 - $58.70
Q1 2023	811,694	$30,439	$32.78	$27.58 - $38.22
Q4 2022	500,065	$14	$29.04	$26.76 - $31.64
Q3 2022	715,181	$20,097	$32.65	$27.10 - $39.07
Q2 2022	726,516	$25,275	$35.69	$28.64 - $44.46
Q1 2022	614,855	$22,073	$28.36	$22.07 - $37.16
Q4 2021	611,462	$14,241	$20.45	$18.12 - $23.85
Q3 2021	401,100	$7,625	$19.59	$17.56 - $21.63
Q2 2021	399,445	$8,053	$18.84	$16.91 - $20.94
Q1 2021	397,950	$7,290	$18.59	$17.11 - $20.93
Q4 2020	546,344	$10,987	$19.46	$17.51 - $21.38
Q3 2020	817,515	$15,328	$20.14	$17.83 - $22.69
Q2 2020	815,129	$18,308	$18.31	$14.00 - $22.50