AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q4 2025

Shares 323,549 Value ($000) $8,665 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 312,337 Value ($000) $8,324 Avg Close $25.82 Range $20.39 - $31.26

Q2 2025

Shares 85,112 Value ($000) $1,954 Avg Close $24.82 Range $22.64 - $29.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	323,549	$8,665	$25.76	$22.94 - $29.00
Q3 2025	312,337	$8,324	$25.82	$20.39 - $31.26
Q2 2025	85,112	$1,954	$24.82	$22.64 - $29.27