AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q1 2019
Shares 978 Value ($000) $20 Avg Close $22.40 Range $19.32 - $25.43
Q4 2018
Shares 978 Value ($000) $19 Avg Close $19.71 Range $17.71 - $22.74
Q3 2018
Shares 1,787 Value ($000) $34 Avg Close $17.82 Range $15.04 - $19.50
Q2 2018
Shares 1,554 Value ($000) $24 Avg Close $17.48 Range $14.40 - $19.94
Q1 2018
Shares 1,868 Value ($000) $35 Avg Close $18.80 Range $16.76 - $20.45
Q4 2017
Shares 1,771 Value ($000) $34 Avg Close $18.67 Range $17.00 - $19.95
Q3 2017
Shares 1,799 Value ($000) $32 Avg Close $16.45 Range $14.53 - $18.67
Q2 2017
Shares 1,514 Value ($000) $27 Avg Close $15.86 Range $13.15 - $17.95
Q1 2017
Shares 1,245 Value ($000) $18 Avg Close $15.72 Range $12.05 - $19.64
Q4 2016
Shares 1,192 Value ($000) $22 Avg Close $19.45 Range $16.87 - $21.75
Q3 2016
Shares 120 Value ($000) $2 Avg Close $18.15 Range $15.62 - $21.53
Q2 2016
Shares 120 Value ($000) $2 Avg Close $14.11 Range $11.41 - $16.78