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Amphastar Pharmaceuticals, Inc.

AMPH
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001297184

In the last 90 days, Amphastar Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 212 institutions reported holding it in 13F filings for Q2 2026, worth $572.1M in total; no superinvestor holds it.

Q1 2023 vs. Q4 2022

How the institutions holding Amphastar Pharmaceuticals, Inc. changed between Q4 2022 and Q1 2023.

All holders in Q1 2023All holders in Q4 2022

13F holders of AMPH: Q4 2022 compared with Q1 2023
MeasureQ4 2022Of which not filed for Q1 2023Q1 2023Change
Holders2131218+6
Shares29.1M20.8K30.2M+1.08M (+3.7%)
Value$816.7M$601.0K$1.13B+$316.8M (+38.8%)

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (32)

Institutions that held Amphastar Pharmaceuticals, Inc. at the end of Q1 2023 but not at the end of Q4 2022.

Institutions new to AMPH in Q1 2023
InstitutionSharesValue% of portfolio
Granite Investment Partners, LLC536,821$20.1M0.84%
Neuberger Berman Group LLC431,252$16.2M0.01%
Point72 Asset Management, L.P.65,418$2.45M0.01%
Marshall Wace, LLP64,209$2.41M0.01%
Susquehanna International Group, LLP42,377$1.59M0.00%
Tucker Asset Management LLC31,672$1.19M0.36%
Jackson Creek Investment Advisors LLC25,877$970.0K0.41%
Walleye Capital LLC23,231$871.2K0.02%
Royce & Associates LP22,315$836.8K0.01%
Gsa Capital Partners LLP21,852$819.0K0.08%
Tudor Investment Corp Et Al16,010$600.0K0.01%
Advisory Research Inc14,779$554.2K0.09%
SEI Investments Co14,422$540.8K0.00%
LPL Financial LLC13,213$495.5K0.00%
Ergoteles LLC10,024$375.9K0.01%
Nations Financial Group Inc,9,273$347.7K0.04%
Envestnet Asset Management Inc9,077$340.4K0.00%
Handelsbanken Fonder AB9,000$338.0K0.00%
Aigen Investment Management, LP7,799$292.5K0.04%
Hennion & Walsh Asset Management, Inc.6,982$262.0K0.02%
TD Asset Management Inc6,500$243.8K0.00%
Everence Capital Management Inc6,470$243.0K0.02%
Bailard, Inc.6,400$240.0K0.01%
Aquatic Capital Management LLC5,700$214.0K0.01%
State Board of Administration of Florida Retirement System5,623$210.9K0.00%
Amundi5,404$210.4K0.00%
Dakota Wealth Management5,426$203.5K0.01%
Centiva Capital, LP5,344$200.4K0.01%
Group One Trading, L.P.100$3.75K0.00%
Advisory Services Network, LLC100$3.75K0.00%
Belpointe Asset Management LLC15$5630.00%
Bell Investment Advisors, Inc15$5630.00%

Sold out (26)

Institutions that held Amphastar Pharmaceuticals, Inc. at the end of Q4 2022 and filed for Q1 2023 without it.

Institutions that sold out of AMPH in Q1 2023
InstitutionShares, Q4 2022Value, Q4 2022
Pacer Advisors, Inc.231,009$6.47M
Qube Research & Technologies Ltd61,271$1.72M
Schroder Investment Management Group44,326$1.24M
Twinbeech Capital LP43,937$1.23M
Acadian Asset Management LLC23,870$668.0K
Occudo Quantitative Strategies LP23,213$650.4K
STRS Ohio18,300$512.0K
XTX Topco Ltd16,480$461.8K
Schonfeld Strategic Advisors LLC16,398$459.5K
ExodusPoint Capital Management, LP14,515$407.0K
Navellier & Associates Inc13,155$368.6K
Jupiter Asset Management Ltd13,128$367.1K
HSBC Holdings PLC10,370$288.7K
Kula Investments, LLC10,236$286.8K
DuPont Capital Management Corp2,980$83.5K
Point72 Middle East FZE1,782$49.9K
Sutton Wealth Advisors Inc.1,355$38.0K
Anfield Capital Management, LLC1,027$28.8K
Money Concepts Capital Corp602$16.9K
Ellevest, Inc.405$11.3K
Simplex Trading, LLC279$7.00K
Aua Capital Management, LLC28$785
Sofos Investments, Inc.28$760
Tfo-TDC, LLC6$457
Rockefeller Capital Management L.P.14$0
IFP Advisors, Inc18–

Not filed for Q1 2023 yet (1)

Institutions that held Amphastar Pharmaceuticals, Inc. at the end of Q4 2022 and haven't filed a 13F for Q1 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMPH in Q4 2022 that haven't filed for Q1 2023
InstitutionShares, Q4 2022Value, Q4 2022
Comerica Bank20,752$601.0K