AMPH β€” AMPHASTAR PHARMACEUTICALS INC DEL COM

Ownership history in SummerHaven Investment Management, LLC  Β·  2 quarters on record

This page tracks every 13F SEC filing in which SummerHaven Investment Management, LLC reported a position in AMPHASTAR PHARMACEUTICALS INC DEL COM (AMPH). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.59% (2025 Q3)
πŸ“Š Avg. % of fund
0.59%
πŸ“… First filed
2025 Q3
πŸ“… Last filed
2025 Q4
⏱ Quarters held
2
% of Fund (quarterly)    AMPH price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 2 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 UNCHANGED 38,200 β€” 0% 0.58% $1.0M $26.78
2025 Q3 INITIATED 38,200 β€” β€” 0.59% $1.0M $26.65

🏒 Other funds also holding AMPH

As of 2025 Q4 β€” sorted by position size

LAM GROUP, INC. 3Y 2.0% Bridge City Capital, LLC 3Y 7Y 1.85% Quantedge Capital Pte Ltd 3Y 1.17% DENALI ADVISORS LLC 3Y 7Y 0.63% Significant Wealth Partners LLC 0.29% SYSTEMATIC FINANCIAL MANAGEMENT LP 3Y 7Y 0.27% Corient IA LLC 0.19% BRIDGEWAY CAPITAL MANAGEMENT, LLC 3Y 7Y 0.18% RICE HALL JAMES & ASSOCIATES, LLC 3Y 7Y 0.18% Epoch Investment Partners, Inc. 3Y 7Y 0.17%
← Back to SummerHaven Investment Management, LLC Holdings