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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.

13F holders, Q4 2023

Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
276
+23 vs. Q3 2023
Shares held
33.3M
+1.32M (+4.1%) vs. Q3 2023
Total value
$2.06B
+$588.4M (+40.0%) vs. Q3 2023
New holders
48
97 more added
Sold out
25
93 more reduced

3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMPH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 276 institutions
Q1 2021: 135 institutionsQ2 2021: 146 institutionsQ3 2021: 140 institutionsQ4 2021: 168 institutionsQ1 2022: 203 institutionsQ2 2022: 223 institutionsQ3 2022: 207 institutionsQ4 2022: 213 institutionsQ1 2023: 218 institutionsQ2 2023: 246 institutionsQ3 2023: 256 institutionsQ4 2023: 276 institutionsQ1 2024: 271 institutionsQ2 2024: 269 institutionsQ3 2024: 279 institutionsQ4 2024: 264 institutionsQ1 2025: 241 institutionsQ2 2025: 245 institutionsQ3 2025: 243 institutionsQ4 2025: 236 institutionsQ1 2026: 215 institutionsQ2 2026: 212 institutions
Value heldQ4 2023: $2.06B
Q1 2021: $476.9MQ2 2021: $549.6MQ3 2021: $530.8MQ4 2021: $678.8MQ1 2022: $1.07BQ2 2022: $1.06BQ3 2022: $839.3MQ4 2022: $816.7MQ1 2023: $1.13BQ2 2023: $1.80BQ3 2023: $1.47BQ4 2023: $2.06BQ1 2024: $1.47BQ2 2024: $1.37BQ3 2024: $1.72BQ4 2024: $1.31BQ1 2025: $963.6MQ2 2025: $752.0MQ3 2025: $872.8MQ4 2025: $899.7MQ1 2026: $634.0MQ2 2026: $572.1M
Institutions holding AMPH and their total value by quarter
QuarterHoldersValue
Q2 2026212$572.1M
Q1 2026215$634.0M
Q4 2025236$899.7M
Q3 2025243$872.8M
Q2 2025245$752.0M
Q1 2025241$963.6M
Q4 2024264$1.31B
Q3 2024279$1.72B
Q2 2024269$1.37B
Q1 2024271$1.47B
Q4 2023276$2.06B
Q3 2023256$1.47B
Q2 2023246$1.80B
Q1 2023218$1.13B
Q4 2022213$816.7M
Q3 2022207$839.3M
Q2 2022223$1.06B
Q1 2022203$1.07B
Q4 2021168$678.8M
Q3 2021140$530.8M
Q2 2021146$549.6M
Q1 2021135$476.9M

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2023.

Institutions holding AMPH in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
O'Shaughnessy Asset Management, LLC4,228$261.5K0.00%+4,228New
XTX Topco Ltd4,025$248.9K0.05%+4,025New
Ameritas Investment Partners, Inc.3,987$246.6K0.01%+212+5.6%Added
Mariner, LLC3,865$239.1K0.00%+3,865New
Hancock Whitney Corp3,855$238.4K0.01%+3,855New
Rafferty Asset Management, LLC3,629$224.5K0.00%−820−18.4%Reduced
Lido Advisors, LLC3,562$220.3K0.00%−1,291−26.6%Reduced
Leeward Financial Partners, LLC3,507$216.9K0.10%+3,507New
Mercer Global Advisors Inc3,399$210.0K0.00%+3,399New
Captrust Financial Advisors3,346$206.9K0.00%+3,346New
Nisa Investment Advisors, LLC2,430$150.3K0.00%+1,300+115.0%Added
Globeflex Capital L P2,356$145.7K0.01%00.0%Unchanged
The PNC Financial Services Group, Inc.2,248$139.0K0.00%−219−8.9%Reduced
Metropolitan Life Insurance Co2,197$135.9K0.01%00.0%Unchanged
Allworth Financial LP1,470$90.9K0.00%+41+2.9%Added
TD Private Client Wealth LLC1,244$76.9K0.00%+208+20.1%Added
Quadrant Capital Group LLC1,026$63.5K0.01%+223+27.8%Added
Pinnacle Financial Partners Inc1,000$61.9K0.00%00.0%Unchanged
Leonteq Securities AG1,000$61.9K0.01%00.0%Unchanged
Virtus Fund Advisers, LLC981$60.7K0.38%00.0%Unchanged
KBC Group NV971$60.0K0.00%−131−11.9%Reduced
Pacer Advisors, Inc.970$60.0K0.00%−74−7.1%Reduced
Advisors Asset Management, Inc.843$52.1K0.00%+401+90.7%Added
Proequities, Inc.840$52.0K0.00%+69+8.9%Added
State of Wyoming818$50.6K0.01%−524−39.0%Reduced
Ronald Blue Trust, Inc.1,076$49.0K0.00%−122−10.2%Reduced
Huntington National Bank761$47.1K0.00%+516+210.6%Added
EntryPoint Capital, LLC748$46.3K0.04%+748New
Fifth Third Bancorp599$37.0K0.00%−15−2.4%Reduced
Principal Securities, Inc.548$33.9K0.00%+548New
CWM, LLC461$29.0K0.00%−35−7.1%Reduced
McGlone Suttner Wealth Management, Inc.453$28.0K0.01%+453New
Point72 Asia (Singapore) Pte. Ltd.447$27.7K0.01%+447New
Signaturefd, LLC375$23.2K0.00%−86−18.7%Reduced
NVWM, LLC363$22.5K0.01%+179+97.3%Added
Vima LLC290$17.9K0.04%+290New
Harbour Investments, Inc.270$16.7K0.00%00.0%Unchanged
Versant Capital Management, Inc268$16.6K0.00%−98−26.8%Reduced
Johnson Financial Group, Inc.259$16.0K0.00%+259New
Steward Partners Investment Advisory, LLC250$15.5K0.00%00.0%Unchanged
Spire Wealth Management280$15.4K0.00%+280New
Contravisory Investment Management, Inc.238$14.7K0.00%+238New
Silicon Valley Capital Partners229$14.2K0.00%00.0%Unchanged
GAMMA Investing LLC242$12.9K0.00%+242New
Trivant Custom Portfolio Group, LLC200$12.4K0.01%+200New
Daiwa Securities Group Inc.194$12.0K0.00%00.0%Unchanged
Richardson Financial Services Inc.171$10.6K0.01%+171New
First Horizon Advisors, Inc.162$10.0K0.00%+148+1,057.1%Added
Covestor Ltd164$10.0K0.01%−1,802−91.7%Reduced
Raleigh Capital Management Inc.159$9.83K0.00%+21+15.2%Added
Kelly Financial Services LLC150$9.28K0.00%00.0%Unchanged
LGT Financial Advisors LLC133$8.23K0.01%00.0%Unchanged
Clearstead Advisors, LLC119$7.36K0.00%+92+340.7%Added
Parkside Financial Bank & Trust108$6.68K0.00%−165−60.4%Reduced
Farther Finance Advisors, LLC98$6.06K0.00%+18+22.5%Added
Capital Advisors, Ltd. LLC90$6.00K0.00%00.0%Unchanged
Massmutual Trust Co FSB97$6.00K0.00%00.0%Unchanged
Parallel Advisors, LLC95$5.88K0.00%00.0%Unchanged
Lindbrook Capital, LLC95$5.88K0.00%+41+75.9%Added
Glassman Wealth Services92$5.69K0.00%00.0%Unchanged
Global Retirement Partners, LLC96$5.33K0.00%+68+242.9%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC80$4.95K0.00%00.0%Unchanged
Crewe Advisors LLC71$4.39K0.00%+71New
EverSource Wealth Advisors, LLC60$3.71K0.00%+60New
Advisory Services Network, LLC47$2.91K0.00%+47New
Private Wealth Management Group, LLC40$2.47K0.00%+40New
Carolinas Wealth Consulting LLC33$2.02K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc28$1.73K0.00%00.0%Unchanged
Bell Investment Advisors, Inc15$9280.00%00.0%Unchanged
JFS Wealth Advisors, LLC12$7430.00%+8+200.0%Added
Financial Synergies Wealth Advisors, Inc.15$4210.00%00.0%Unchanged
SJS Investment Consulting Inc.5$3100.00%+1+25.0%Added
Horizon Investments, LLC4$2470.00%+4New
AdvisorNet Financial, Inc3$1860.00%−1−25.0%Reduced
DiNuzzo Private Wealth, Inc.2$1240.00%+2New
Rosenberg Matthew Hamilton1$620.00%00.0%Unchanged
Walleye Capital LLC0$00.00%−39,854−100.0%Sold out
Monashee Investment Management LLC0$00.00%−39,461−100.0%Sold out
Jump Financial, LLC0$00.00%−37,276−100.0%Sold out
Quantedge Capital Pte Ltd0$00.00%−36,389−100.0%Sold out
Summit Global Investments0$00.00%−36,238−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−28,230−100.0%Sold out
Empowered Funds, LLC0$00.00%−18,445−100.0%Sold out
Point72 Middle East FZE0$00.00%−17,161−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−16,543−100.0%Sold out
Twinbeech Capital LP0$00.00%−13,992−100.0%Sold out
FORA Capital, LLC0$00.00%−11,219−100.0%Sold out
HRT Financial LP0$00.00%−10,057−100.0%Sold out
Verition Fund Management LLC0$00.00%−8,597−100.0%Sold out
HSBC Holdings PLC0$00.00%−7,163−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−5,746−100.0%Sold out
Versor Investments LP0$00.00%−5,700−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−4,100−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−1,283−100.0%Sold out
Altshuler Shaham Ltd0$00.00%−441−100.0%Sold out
City State Bank0$00.00%−100−100.0%Sold out
Householder Group Estate & Retirement Specialist, LLC0$00.00%−91−100.0%Sold out
Fisher Asset Management, LLC0$00.00%−58−100.0%Sold out
USA Financial Portformulas Corp0$00.00%−9−100.0%Sold out
Abound Wealth Management0$00.00%−6−100.0%Sold out