ALKS · Company research
Alkermes Inc. plc (ALKS): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP | 1179392 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1038311 | 54402305 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Parallel Advisors, LLC | 1690010 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 230 | 12051 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| Cinctive Capital Management LP | 1787258 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 138603 | 7262104 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1368163 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 61584 | 3226694 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| KBC Group NV | 1411133 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5106 | 268 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| DekaBank Deutsche Girozentrale | 1456228 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5614 | 200 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| EP Wealth Advisors, LLC | 1540569 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5489 | 287596 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| FFT WEALTH MANAGEMENT LLC | 1653199 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5000 | 261975 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| LRI Investments, LLC | 2023325 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8 | 419 | — | — | — | Jul 14, 2026 | SEC_13F_DATASET |
| Rafferty Asset Management, LLC | 1389426 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 62965 | 3299051 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15 | 786 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| GROUP ONE TRADING LLC | 932540 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4700 | 246256 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Atika Capital Management LLC | 1599731 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 933 | 4888920 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| JFS WEALTH ADVISORS, LLC | 1568068 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 88 | 4611 | — | — | — | Jul 10, 2026 | SEC_13F_DATASET |
| Concurrent Investment Advisors, LLC | 2001015 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3228 | 169131 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Amundi | 1330387 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 217739 | 11408435 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| C M BIDWELL & ASSOCIATES LTD | 1091860 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1981 | 103794 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| NORGES BANK | 1374170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2156814 | 113006270 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Procyon Advisors, LLC | 1804329 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4111 | 215396 | — | — | — | Jul 9, 2026 | SEC_13F_DATASET |
| Marquette Asset Management, LLC | 1395067 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 36 | 1887 | — | — | — | Jul 9, 2026 | SEC_13F_DATASET |
| CHOREO, LLC | 1679031 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25815 | 1352573 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| Baird Financial Group, Inc. | 1648711 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 52193 | 2734652 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| SEI INVESTMENTS CO | 350894 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 136387 | 7145997 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Cedar Mountain Advisors, LLC | 1798986 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8 | 419 | — | — | — | Jul 2, 2026 | SEC_13F_DATASET |
| Vontobel Holding Ltd. | 1588340 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12409 | 650170 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| Ankerstar Wealth, LLC | 2053917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26 | 1362 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 175014 | 9169859 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| CIBC Asset Management Inc | 1021926 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5274 | 276331 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| Noble Wealth Management PBC | 2055065 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23 | 1205 | — | — | — | Jul 1, 2026 | SEC_13F_DATASET |
| GF FUND MANAGEMENT CO. LTD. | 2057060 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3528 | 184850 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | 314969 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41900 | 2195 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| PROFUND ADVISORS LLC | 1129919 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40027 | 2097215 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| ProShare Advisors LLC | 1357955 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 29373 | 1538997 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Silver Grove Financial Group, Inc. | 2111172 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 63 | 3301 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| ALLSTATE CORP | 899051 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10584 | 554549 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Vestcor Inc | 1536925 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30230 | 1584 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| MARTINGALE ASSET MANAGEMENT L P | 936944 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 170004 | 8907360 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Vanguard Personalized Indexing Management, LLC | 1767306 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19841 | 1039569 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Jupiter Topco LLC | 2146052 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 67273 | 3524769 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| AdvisorShares Investments LLC | 1425930 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 36438 | 1909169 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Bellevue Group AG | 1674546 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 120243 | 6300132 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CenterBook Partners LP | 1872738 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7403 | 387880 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Soleus Capital Management, L.P. | 1802630 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1029252 | 53927659 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Nuveen, LLC | 1871926 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1035096 | 54233855 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| D. E. Shaw & Co., Inc. | 1009207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1303717 | 68308252 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Neo Ivy Capital Management | 1727783 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 95741 | 5016349 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Weiss Asset Management LP | 1357550 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9970 | 522378 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Versant Capital Management, Inc | 1735057 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1445 | 75711 | — | — | — | Jul 2, 2026 | SEC_13F_DATASET |
| SIGNATUREFD, LLC | 1456048 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1351 | 70805 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| Quantinno Capital Management LP | 1759654 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49208 | 2578253 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Bank of New York Mellon Corp | 1390777 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 593052 | 31072960 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| T. Rowe Price Investment Management, Inc. | 1897612 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1090947 | 57161 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MassMutual Private Wealth & Trust, FSB | 1103653 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 259 | 13570 | — | — | — | Jul 2, 2026 | SEC_13F_DATASET |
| STRS OHIO | 820478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20100 | 1053140 | — | — | — | Jul 30, 2026 | SEC_13F_DATASET |
| SJS Investment Consulting Inc. | 1894302 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 118 | 6183 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | 938076 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 112663 | 5902978 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| AMERICAN CENTURY COMPANIES INC | 748054 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3954239 | 207182449 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 188989 | 10317365 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| QUADRANT CAPITAL GROUP LLC | 1650717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13278 | 695701 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Bain Capital Life Sciences Investors, LLC | 1703031 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1937938 | 101538262 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Driehaus Capital Management LLC | 938206 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1238809 | 64907398 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GLENMEDE TRUST CO NA | 314949 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 338025 | 17710819 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Vestmark Advisory Solutions, Inc. | 1736982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15829 | 829360 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| IFP Advisors, Inc | 1641866 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 639 | 33480 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| Swiss National Bank | 1582202 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 316900 | 16603976 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Federation des caisses Desjardins du Quebec | 2022297 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25 | 1310 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Fifth Third Wealth Advisors LLC | 1899030 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5454 | 285762 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| Arax Advisory Partners | 1586767 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1346 | 70525 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| TUDOR INVESTMENT CORP ET AL | 923093 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25889 | 1356454 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| XPONANCE LLC | 1637541 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16250 | 851419 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Sequoia Financial Advisors, LLC | 1599900 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8237 | 431578 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| SHELTON CAPITAL MANAGEMENT | 1002784 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4793 | 251129 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WealthCollab, LLC | 2017870 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 481 | 25202 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| VICTORY CAPITAL MANAGEMENT INC | 1040188 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 916709 | 48030968 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| VANGUARD ASSET MANAGEMENT, Ltd | 1680208 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 157759 | 8265783 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| E Fund Management Co., Ltd. | 1842296 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8879 | 465215 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| NEW YORK STATE COMMON RETIREMENT FUND | 810265 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 132017 | 6917031 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Robeco Institutional Asset Management B.V. | 1418773 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 92592 | 4851358 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| Godfrey Financial Associates, Inc. | 2097943 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41 | 2148 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Pinnacle Wealth Planning Services, Inc. | 1726752 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3004 | 157395 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.