Amphastar Pharmaceuticals, Inc. - AMPH

Sector: Healthcare · Industry: Pharmaceutical Preparations
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Company profile

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Quarter snapshot

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Q3 2026 · Q2 2026
Value (USD)
Total reported value ($000)
$598.3M
QoQ value delta ($000)
+$25.66M (+4.48%)
Implied price effect (QoQ)
+3.77%
Shares
Total shares
28,545,900
QoQ shares delta
+195,133 (+0.69%)
Total shares held by funds (by quarter)
Shares (left)

Fund holders include prior positions carried forward until a new 13F confirms a change. Reported holders have reported a position in this security for that quarter; this is not the total number of 13F filers.

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Top holders (Q3 2026)

Top 25 only Full list
Partial Q3 2026 data: 72 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 61,508 2,382,991 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%
Bridge City Capital, LLC 9,908 383,901 2.07%
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%
PRINCIPAL FINANCIAL GROUP INC 6,748 261,465 0.0%
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%