Amphastar Pharmaceuticals, Inc. - AMPH

Sector: Healthcare · Industry: Pharmaceutical Preparations

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Company profile

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Q2 2026 · Q1 2026

Value (USD)

Total reported value ($000)

$573M

QoQ value delta ($000)

-$62.57M (-9.85%)

Implied price effect (QoQ)

+3.06%

Total shares

28,368,307

QoQ shares delta

-4,059,457 (-12.52%)

Total shares held by funds (by quarter)

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Top 25 only Full list

Partial Q2 2026 data: 212 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.

Manager	Value ($000)	Shares	% of 13F
BlackRock, Inc.	105,439	5,224,934	0.0%
DIMENSIONAL FUND ADVISORS LP	46,519	2,305,107	0.01%
STATE STREET CORP	33,138	1,642,126	0.0%
VANGUARD CAPITAL MANAGEMENT LLC	29,905	1,481,952	0.0%
AMERICAN CENTURY COMPANIES INC	23,744	1,176,626	0.01%
MARSHALL WACE, LLP	21,518	1,066,322	0.02%
GEODE CAPITAL MANAGEMENT, LLC	19,575	969,840	0.0%
FULLER & THALER ASSET MANAGEMENT, INC.	19,155	949,238	0.05%
D. E. Shaw & Co., Inc.	17,900	887,048	0.01%
VANGUARD PORTFOLIO MANAGEMENT LLC	16,337	809,568	0.0%
LSV ASSET MANAGEMENT	12,956	642,014	0.02%
RENAISSANCE TECHNOLOGIES LLC	10,596	525,100	0.01%
GOLDMAN SACHS GROUP INC	10,198	505,360	0.0%
SYSTEMATIC FINANCIAL MANAGEMENT LP	8,826	437,384	0.18%
MORGAN STANLEY	8,775	434,840	0.0%
UBS Group AG	7,932	393,110	0.0%
HRT FINANCIAL LP	7,820	387,530	0.01%
DENALI ADVISORS LLC	7,586	375,965	0.76%
NORTHERN TRUST CORP	7,486	370,991	0.0%
Bridge City Capital, LLC	6,835	338,708	1.56%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	6,259	310,178	0.0%
BRIDGEWAY CAPITAL MANAGEMENT, LLC	6,032	298,954	0.11%
ROYCE & ASSOCIATES LP	5,948	294,758	0.05%
TWO SIGMA INVESTMENTS, LP	5,006	248,115	0.0%
FIRST TRUST ADVISORS LP	4,983	246,951	0.0%