13FBOX
AMPHASTAR PHARMACEUTICALS IN · 13F Institutional Holdings
Options Calculator Rankings

AMPHASTAR PHARMACEUTICALS IN

AMPH
Institutions
208
Combined AUM (Q2 2026)
$572.0M
Combined Shares (Q2 2026)
28.3M
Overall Trend
Decrease
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+2.6M
95 · 31 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-7.0M
110 · 36 Exit · ≈
⚖️ Net
-4.3M
Net Sell
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$572.0M
Institutions
208
New Buys
31
Adds
64
Reduces
74
Exits
36
Unchanged
39
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
BlackRock, Inc.
<0.01%<0.01%#71$105.4M5.2M$106.2M5.4M-196,409-3.62%Reduce
DIMENSIONAL FUND ADVISORS LP
0.01%0.01%#36$46.5M2.3M$39.7M2.0M+277,160+13.67%Add
STATE STREET CORP
<0.01%<0.01%#84$33.1M1.6M$31.5M1.6M+34,611+2.15%Add
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#109$29.9M1.5M$30.2M1.5M-61,703-4.00%Reduce
AMERICAN CENTURY COMPANIES INC
0.01%0.01%#31$23.7M1.2M$19.9M1.0M+159,088+15.63%Add
MARSHALL WACE, LLP
0.02%0.02%#22$21.5M1.1M$20.1M1.0M+40,682+3.97%Add
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#81$19.6M969,840$19.1M976,650-6,810-0.70%Reduce
FULLER & THALER ASSET MANAGEMENT, INC.
0.05%0.09%#11$19.2M949,238$27.3M1.4M-445,901-31.96%Reduce
D. E. Shaw & Co., Inc.
0.01%0.01%#34$17.9M887,048$13.0M665,542+221,506+33.28%Add
VANGUARD PORTFOLIO MANAGEMENT LLC
<0.01%<0.01%#100$16.3M809,568$15.4M787,816+21,752+2.76%Add
LSV ASSET MANAGEMENT
0.02%0.03%#20$13.0M642,014$12.8M651,714-9,700-1.49%Reduce
RENAISSANCE TECHNOLOGIES LLC
0.01%0.02%#25$10.6M525,100$10.9M553,900-28,800-5.20%Reduce
GOLDMAN SACHS GROUP INC
<0.01%<0.01%#87$10.2M505,360$6.5M329,388+175,972+53.42%Add
SYSTEMATIC FINANCIAL MANAGEMENT LP
0.18%0.2%#6$8.8M437,384$8.9M452,898-15,514-3.43%Reduce
MORGAN STANLEY
<0.01%<0.01%#118$8.8M434,840$15.3M574,679-139,839-24.33%Reduce
UBS Group AG
<0.01%<0.01%#82$7.9M393,110$8.2M420,263-27,153-6.46%Reduce
HRT FINANCIAL LP
0.01%<0.01%#28$7.8M387,530$1.1M56,181+331,349+589.79%Add
DENALI ADVISORS LLC
0.76%0.58%#3$7.6M375,965$5.2M266,465+109,500+41.09%Add
NORTHERN TRUST CORP
<0.01%<0.01%#89$7.5M370,991$7.3M372,279-1,288-0.35%Reduce
Bridge City Capital, LLC
1.56%1.82%#1$6.8M338,708$6.6M335,105+3,603+1.08%Add
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
<0.01%<0.01%#93$6.3M310,178$6.3M321,039-10,861-3.38%Reduce
BRIDGEWAY CAPITAL MANAGEMENT, LLC
0.11%0.13%#8$6.0M298,954$6.5M330,457-31,503-9.53%Reduce
ROYCE & ASSOCIATES LP
0.05%0.08%#14$5.9M294,758$8.0M406,175-111,417-27.43%Reduce
TWO SIGMA INVESTMENTS, LP
<0.01%<0.01%#51$5.0M248,115$2.7M138,148+109,967+79.60%Add
FIRST TRUST ADVISORS LP
<0.01%<0.01%#55$5.0M246,951$3.0M150,591+96,360+63.99%Add
Pacer Advisors, Inc.
0.01%0.02%#26$4.9M241,181$5.1M261,483-20,302-7.76%Reduce
Bank of New York Mellon Corp
<0.01%<0.01%#97$4.7M232,343$4.8M243,226-10,883-4.47%Reduce
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#83$4.5M224,478$4.5M231,044-6,566-2.84%Reduce
AQR CAPITAL MANAGEMENT LLC
<0.01%<0.01%#74$4.2M208,651$1.5M78,778+129,873+164.86%Add
PRINCIPAL FINANCIAL GROUP INC
<0.01%<0.01%#63$4.1M204,250$4.1M209,131-4,881-2.33%Reduce
NEW YORK STATE COMMON RETIREMENT FUND
<0.01%<0.01%#45$3.7M181,122$2.9M148,722+32,400+21.79%Add
JANE STREET GROUP, LLC
<0.01%<0.01%#135$3.6M178,734$3.0M153,475+25,259+16.46%Add
Empowered Funds, LLC
0.02%0.02%#21$3.3M162,812$3.6M181,332-18,520-10.21%Reduce
O'SHAUGHNESSY ASSET MANAGEMENT, LLC
0.01%0.01%#24$3.2M159,427$2.0M103,929+55,498+53.40%Add
Invesco Ltd.
<0.01%<0.01%#138$3.2M158,064$11.8M604,774-446,710-73.86%Reduce
VICTORY CAPITAL MANAGEMENT INC
<0.01%<0.01%#67$3.0M149,612$4.9M249,617-100,005-40.06%Reduce
Universal- Beteiligungs- und Servicegesellschaft mbH
<0.01%<0.01%#47$2.8M139,402$2.7M139,40200.00%Unchanged
BANK OF AMERICA CORP /DE/
<0.01%<0.01%#151$2.8M136,824$3.4M174,323-37,499-21.51%Reduce
ALGERT GLOBAL LLC
0.03%0.02%#16$2.7M131,400$1.2M62,360+69,040+110.71%Add
LAM GROUP, INC.
1.31%1.41%#2$2.6M130,800$2.6M130,80000.00%Unchanged
NORDEA INVESTMENT MANAGEMENT AB
<0.01%<0.01%#62$2.6M126,931$2.4M123,824+3,107+2.51%Add
BESSEMER GROUP INC
<0.01%<0.01%#54$2.4M121,345$2.4M122,046-701-0.57%Reduce
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
<0.01%<0.01%#80$2.4M116,653$6.4M325,291-208,638-64.14%Reduce
PUBLIC SECTOR PENSION INVESTMENT BOARD
0.01%0.01%#42$2.4M116,648$2.5M126,574-9,926-7.84%Reduce
Nuveen, LLC
<0.01%<0.01%#121$1.8M88,397$1.5M76,595+11,802+15.41%Add
Vanguard Global Advisers, LLC
<0.01%<0.01%#94$1.8M87,639$982,69350,163+37,476+74.71%Add
EXCHANGE TRADED CONCEPTS, LLC
0.01%0.01%#37$1.8M87,054$1.6M82,416+4,638+5.63%Add
RHUMBLINE ADVISERS
<0.01%<0.01%#77$1.6M80,454$1.6M83,721-3,267-3.90%Reduce
Squarepoint Ops LLC
<0.01%<0.01%#66$1.6M78,795$555,27928,345+50,450+177.99%Add
Legal & General Group Plc
<0.01%<0.01%#130$1.6M78,281$1.6M80,916-2,635-3.26%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow