AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

Advisors Asset Management, Inc.'s Holding History (CIK: 0001297376)

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

Q4 2024

Shares 399 Value ($000) $15 Avg Close $45.73 Range $36.48 - $53.96

Q3 2024

Shares 873 Value ($000) $42 Avg Close $43.89 Range $36.56 - $50.62

Q2 2024

Shares 926 Value ($000) $37 Avg Close $41.44 Range $38.43 - $46.62

Q1 2024

Shares 930 Value ($000) $41 Avg Close $51.65 Range $42.16 - $65.92

Q4 2023

Shares 843 Value ($000) $52 Avg Close $52.53 Range $43.79 - $63.67

Q3 2023

Shares 442 Value ($000) $20 Avg Close $54.55 Range $44.86 - $67.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	399	$15	$45.73	$36.48 - $53.96
Q3 2024	873	$42	$43.89	$36.56 - $50.62
Q2 2024	926	$37	$41.44	$38.43 - $46.62
Q1 2024	930	$41	$51.65	$42.16 - $65.92
Q4 2023	843	$52	$52.53	$43.79 - $63.67
Q3 2023	442	$20	$54.55	$44.86 - $67.66