AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2025
Shares 17,199 Value ($000) $458 Avg Close $25.82 Range $20.39 - $31.26
Q2 2025
Shares 15,618 Value ($000) $359 Avg Close $24.82 Range $22.64 - $29.27
Q1 2025
Shares 16,913 Value ($000) $490 Avg Close $31.94 Range $25.89 - $39.01
Q4 2024
Shares 17,784 Value ($000) $660 Avg Close $45.73 Range $36.48 - $53.96
Q3 2024
Shares 19,723 Value ($000) $957 Avg Close $43.89 Range $36.56 - $50.62
Q2 2022
Shares 15,900 Value ($000) $553 Avg Close $35.69 Range $28.64 - $44.46
Q1 2017
Shares 19,416 Value ($000) $282 Avg Close $15.72 Range $12.05 - $19.64
Q4 2016
Shares 45,186 Value ($000) $832 Avg Close $19.45 Range $16.87 - $21.75
Q3 2016
Shares 29,800 Value ($000) $566 Avg Close $18.15 Range $15.62 - $21.53