AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q2 2019

Shares 11,758 Value ($000) $248 Avg Close $20.90 Range $18.60 - $23.06

Q1 2019

Shares 18,231 Value ($000) $373 Avg Close $22.40 Range $19.32 - $25.43

Q3 2018

Shares 11,600 Value ($000) $223 Avg Close $17.82 Range $15.04 - $19.50

Q4 2017

Shares 10,261 Value ($000) $197 Avg Close $18.67 Range $17.00 - $19.95

Q2 2017

Shares 24,680 Value ($000) $441 Avg Close $15.86 Range $13.15 - $17.95

Q1 2017

Shares 58,746 Value ($000) $852 Avg Close $15.72 Range $12.05 - $19.64

Q4 2016

Shares 30,862 Value ($000) $568 Avg Close $19.45 Range $16.87 - $21.75

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	11,758	$248	$20.90	$18.60 - $23.06
Q1 2019	18,231	$373	$22.40	$19.32 - $25.43
Q3 2018	11,600	$223	$17.82	$15.04 - $19.50
Q4 2017	10,261	$197	$18.67	$17.00 - $19.95
Q2 2017	24,680	$441	$15.86	$13.15 - $17.95
Q1 2017	58,746	$852	$15.72	$12.05 - $19.64
Q4 2016	30,862	$568	$19.45	$16.87 - $21.75