AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q1 2025
Shares 119,628 Value ($000) $3,468 Avg Close $31.94 Range $25.89 - $39.01
Q4 2024
Shares 123,360 Value ($000) $4,580 Avg Close $45.73 Range $36.48 - $53.96
Q3 2024
Shares 123,619 Value ($000) $5,999 Avg Close $43.89 Range $36.56 - $50.62
Q2 2024
Shares 124,768 Value ($000) $4,991 Avg Close $41.44 Range $38.43 - $46.62
Q1 2024
Shares 125,963 Value ($000) $5,531 Avg Close $51.65 Range $42.16 - $65.92
Q4 2023
Shares 127,537 Value ($000) $7,888 Avg Close $52.53 Range $43.79 - $63.67
Q3 2023
Shares 127,326 Value ($000) $5,856 Avg Close $54.55 Range $44.86 - $67.66
Q2 2023
Shares 145,896 Value ($000) $8,385 Avg Close $44.33 Range $35.62 - $58.70
Q1 2023
Shares 187,060 Value ($000) $7,015 Avg Close $32.78 Range $27.58 - $38.22
Q4 2022
Shares 203,971 Value ($000) $5,715 Avg Close $29.04 Range $26.76 - $31.64
Q3 2022
Shares 204,573 Value ($000) $5,749 Avg Close $32.65 Range $27.10 - $39.07
Q2 2022
Shares 205,663 Value ($000) $7,155 Avg Close $35.69 Range $28.64 - $44.46
Q1 2022
Shares 251,272 Value ($000) $9,021 Avg Close $28.36 Range $22.07 - $37.16
Q4 2021
Shares 252,208 Value ($000) $5,874 Avg Close $20.45 Range $18.12 - $23.85
Q3 2021
Shares 255,813 Value ($000) $4,863 Avg Close $19.59 Range $17.56 - $21.63
Q2 2021
Shares 184,979 Value ($000) $3,729 Avg Close $18.84 Range $16.91 - $20.94