AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q3 2016

Shares 51,700 Value ($000) $981 Avg Close $18.15 Range $15.62 - $21.53

Q2 2016

Shares 11,157 Value ($000) $180 Avg Close $14.11 Range $11.41 - $16.78

Q3 2015

Shares 31,218 Value ($000) $365 Avg Close $15.00 Range $10.61 - $18.30

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	51,700	$981	$18.15	$15.62 - $21.53
Q2 2016	11,157	$180	$14.11	$11.41 - $16.78
Q3 2015	31,218	$365	$15.00	$10.61 - $18.30