AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

EAM Investors, LLC's Holding History (CIK: 0001510989)

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

Q2 2022

Shares 68,855 Value ($000) $2,395 Avg Close $35.69 Range $28.64 - $44.46

Q1 2022

Shares 124,697 Value ($000) $4,477 Avg Close $28.36 Range $22.07 - $37.16

Q4 2018

Shares 122,250 Value ($000) $2,433 Avg Close $19.71 Range $17.71 - $22.74

Q4 2016

Shares 173,018 Value ($000) $3,187 Avg Close $19.45 Range $16.87 - $21.75

Q3 2016

Shares 193,355 Value ($000) $3,668 Avg Close $18.15 Range $15.62 - $21.53

Q2 2016

Shares 246,805 Value ($000) $3,978 Avg Close $14.11 Range $11.41 - $16.78

Q2 2015

Shares 68,224 Value ($000) $1,199 Avg Close $15.59 Range $13.55 - $18.25

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	68,855	$2,395	$35.69	$28.64 - $44.46
Q1 2022	124,697	$4,477	$28.36	$22.07 - $37.16
Q4 2018	122,250	$2,433	$19.71	$17.71 - $22.74
Q4 2016	173,018	$3,187	$19.45	$16.87 - $21.75
Q3 2016	193,355	$3,668	$18.15	$15.62 - $21.53
Q2 2016	246,805	$3,978	$14.11	$11.41 - $16.78
Q2 2015	68,224	$1,199	$15.59	$13.55 - $18.25