AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q4 2024
Shares 131,123 Value ($000) $4,869 Avg Close $45.73 Range $36.48 - $53.96
Q3 2024
Shares 327,764 Value ($000) $15,906 Avg Close $43.89 Range $36.56 - $50.62
Q2 2024
Shares 108,863 Value ($000) $4,355 Avg Close $41.44 Range $38.43 - $46.62
Q1 2024
Shares 91,005 Value ($000) $3,996 Avg Close $51.65 Range $42.16 - $65.92
Q4 2023
Shares 148,416 Value ($000) $9,180 Avg Close $52.53 Range $43.79 - $63.67
Q3 2023
Shares 132,850 Value ($000) $6,110 Avg Close $54.55 Range $44.86 - $67.66
Q2 2023
Shares 182,243 Value ($000) $10,474 Avg Close $44.33 Range $35.62 - $58.70
Q1 2023
Shares 340,593 Value ($000) $12,772 Avg Close $32.78 Range $27.58 - $38.22
Q4 2022
Shares 270,791 Value ($000) $7,588 Avg Close $29.04 Range $26.76 - $31.64
Q3 2022
Shares 282,187 Value ($000) $7,929 Avg Close $32.65 Range $27.10 - $39.07
Q2 2022
Shares 274,889 Value ($000) $9,563 Avg Close $35.69 Range $28.64 - $44.46