Guru Ownership Trend
Guru Analysis for Amphastar Pharmaceuticals, Inc. (AMPH)
Amphastar Pharmaceuticals, Inc. (AMPH), a key player in the Healthcare sector, continues to attract institutional attention.
As of Q2 2026, a total of 5 Super Investors (Gurus) hold positions in the company, with a combined stake valued at approximately $26.19 M.
Top institutional holders include Renaissance Technologies (RenTech) and Chuck Royce.
Institutional sentiment is currently Slightly Bearish. This is evidenced by a $129,133.48 net outflow during the quarter.
Recent activity highlights Cliff Asness who increased their stake by 164.9%. Conversely, Chuck Royce reduced exposure by 27.4%.
Key Holders
Top 5 by Value
Top 5 by Conviction
Recent Activity Breakdown (Q2 2026)
Guru Consensus (Q2 2026)
FAQs for Amphastar Pharmaceuticals, Inc. (AMPH)
Major holders include Renaissance Technologies (RenTech) ($10.6 M), Chuck Royce ($5.95 M), Cliff Asness ($4.21 M). According to the latest reported data, 5 tracked investment managers collectively hold approximately 1.09 M shares.
According to the latest 13F reporting period, sentiment appears Bearish (Net Selling). There was a net outflow of $129,133.48, with 3 managers increasing positions and 3 managers reducing holdings.
During the most recent reporting period, 2 managers trimmed their positions, while 1 fully exited AMPH. The total reported sell value was $4.06 M.
Yes, 2 managers opened new positions in AMPH, and 1 increased their existing holdings. The total reported buy value was $3.93 M.