AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020
Shares 27,684 Value ($000) $557 Avg Close $19.46 Range $17.51 - $21.38
Q3 2020
Shares 24,916 Value ($000) $467 Avg Close $20.14 Range $17.83 - $22.69
Q2 2020
Shares 24,005 Value ($000) $539 Avg Close $18.31 Range $14.00 - $22.50
Q1 2020
Shares 33,657 Value ($000) $500 Avg Close $17.40 Range $12.33 - $20.40
Q4 2019
Shares 19,613 Value ($000) $378 Avg Close $19.18 Range $16.71 - $20.89
Q3 2019
Shares 27,683 Value ($000) $549 Avg Close $20.83 Range $18.66 - $22.85
Q2 2019
Shares 30,001 Value ($000) $633 Avg Close $20.90 Range $18.60 - $23.06
Q1 2019
Shares 33,737 Value ($000) $689 Avg Close $22.40 Range $19.32 - $25.43
Q4 2018
Shares 27,271 Value ($000) $543 Avg Close $19.71 Range $17.71 - $22.74
Q3 2018
Shares 20,671 Value ($000) $398 Avg Close $17.82 Range $15.04 - $19.50
Q2 2018
Shares 17,815 Value ($000) $272 Avg Close $17.48 Range $14.40 - $19.94
Q1 2018
Shares 15,113 Value ($000) $283 Avg Close $18.80 Range $16.76 - $20.45
Q4 2017
Shares 15,004 Value ($000) $289 Avg Close $18.67 Range $17.00 - $19.95
Q3 2017
Shares 13,670 Value ($000) $245 Avg Close $16.45 Range $14.53 - $18.67
Q2 2017
Shares 12,881 Value ($000) $231 Avg Close $15.86 Range $13.15 - $17.95
Q1 2017
Shares 13,324 Value ($000) $193 Avg Close $15.72 Range $12.05 - $19.64