AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

RICHARDSON FINANCIAL SERVICES INC.'s Holding History (CIK: 0002012303)

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

Q4 2025

Shares 819 Value ($000) $22 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 611 Value ($000) $16 Avg Close $25.82 Range $20.39 - $31.26

Q4 2024

Shares 246 Value ($000) $9 Avg Close $45.73 Range $36.48 - $53.96

Q3 2024

Shares 243 Value ($000) $10 Avg Close $43.89 Range $36.56 - $50.62

Q2 2024

Shares 243 Value ($000) $10 Avg Close $41.44 Range $38.43 - $46.62

Q1 2024

Shares 107 Value ($000) $5 Avg Close $51.65 Range $42.16 - $65.92

Q4 2023

Shares 171 Value ($000) $11 Avg Close $52.53 Range $43.79 - $63.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	819	$22	$25.76	$22.94 - $29.00
Q3 2025	611	$16	$25.82	$20.39 - $31.26
Q4 2024	246	$9	$45.73	$36.48 - $53.96
Q3 2024	243	$10	$43.89	$36.56 - $50.62
Q2 2024	243	$10	$41.44	$38.43 - $46.62
Q1 2024	107	$5	$51.65	$42.16 - $65.92
Q4 2023	171	$11	$52.53	$43.79 - $63.67