Skip to main content
Equibles
ALKS logo

ALKS

Alkermes plc.
$51.87 -0.07 (-0.13%) At close · Jul 13
Market Cap
$8.65B
Shares
166,675,807

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 393
Total Value: $5,909,912,277
Total Shares: 167,076,428
Showing 1–100 of 404 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Superinvestors Holding ALKS

All superinvestors →
Ray Dalio $2,963,380 Joel Greenblatt $1,469,137

Holder Concentration

Across 390 13F filers
Top Holder
16.9%
Jun 2023 → Mar 2026 · range 11.4% – 17.1%
of institutional value
Top 5
36.7%
Jun 2023 → Mar 2026 · range 36.7% – 46.6%
of institutional value
Top 10
50.8%
Jun 2023 → Mar 2026 · range 50.8% – 61.2%
of institutional value
HHI
473
Jun 2023 → Mar 2026 · range 407 – 612
Broadly held
Showing 100 of 404
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $1,001,197,527 16.94% 28,314,410
Large BAKER BROS. ADVISORS LP $354,033,761 5.99% 10,012,267
Mega STATE STREET CORP $334,692,512 5.66% 9,465,286
Mega VANGUARD CAPITAL MANAGEMENT LLC $262,632,757 4.44% 7,427,397
Large RENAISSANCE TECHNOLOGIES LLC $217,832,734 3.69% 6,160,428
Mega AMERICAN CENTURY COMPANIES INC $214,709,562 3.63% 6,072,103
Mega PRICE T ROWE ASSOCIATES INC /MD/ $164,939,406 2.79% 4,664,576
Mega DIMENSIONAL FUND ADVISORS LP $159,911,284 2.71% 4,522,378
Mid Commodore Capital LP $148,512,000 2.51% 4,200,000
Mega GEODE CAPITAL MANAGEMENT, LLC $147,884,960 2.50% 4,182,267
Mega JPMORGAN CHASE & CO $145,039,257 2.45% 4,101,789
Mid Deep Track Capital, LP $126,953,821 2.15% 3,590,323
Mega WELLINGTON MANAGEMENT GROUP LLP $105,025,067 1.78% 2,970,166
Mega FIRST TRUST ADVISORS LP $104,976,237 1.78% 2,968,785
Mega PRIMECAP MANAGEMENT CO/CA/ $89,814,046 1.52% 2,539,990
Mega Nuveen, LLC $87,005,718 1.47% 2,460,569
Large Holocene Advisors, LP $81,940,647 1.39% 2,317,326
Mega CITADEL ADVISORS LLC $79,262,409 1.34% 2,241,584
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $79,091,692 1.34% 2,236,756
Mid BVF INC/IL $70,720,000 1.20% 2,000,000
Mid Soleus Capital Management, L.P. $69,689,751 1.18% 1,970,864
Mega GOLDMAN SACHS GROUP INC $66,553,812 1.13% 1,882,178
Large LOOMIS SAYLES & CO L P $63,102,783 1.07% 1,784,581
Mega MORGAN STANLEY $61,388,175 1.04% 1,736,091
Mega NORTHERN TRUST CORP Bank $60,008,815 1.02% 1,697,082
Large RTW INVESTMENTS, LP $59,134,508 1.00% 1,672,356
Mid Affinity Asset Advisors, LLC $47,736,000 0.81% 1,350,000
Mega FMR LLC $46,807,692 0.79% 1,323,747
Mega BANK OF AMERICA CORP /DE/ Bank $42,815,689 0.72% 1,210,851
Large Avoro Capital Advisors LLC $42,432,000 0.72% 1,200,000
Mega VANGUARD FIDUCIARY TRUST CO Bank $39,929,784 0.68% 1,129,236
Large Artisan Partners Limited Partnership $39,311,161 0.67% 1,111,741
Mega Bank of New York Mellon Corp Bank $36,649,221 0.62% 1,036,460
Large MARSHALL WACE, LLP $35,336,024 0.60% 999,322
Mega PRINCIPAL FINANCIAL GROUP INC $33,875,445 0.57% 958,016
Large Pictet Asset Management Holding SA $33,315,626 0.56% 942,184
Large PANAGORA ASSET MANAGEMENT INC $32,988,829 0.56% 932,942
Mega T. Rowe Price Investment Management, Inc. $31,621,599 0.54% 894,276
Large Driehaus Capital Management LLC $28,003,811 0.47% 791,963
Mega TWO SIGMA INVESTMENTS, LP $27,604,950 0.47% 780,683
Mega AMERIPRISE FINANCIAL INC $26,206,745 0.44% 741,141
Mega D. E. Shaw & Co., Inc. $25,116,101 0.42% 710,297
Mid Frazier Life Sciences Management, L.P. $24,774,877 0.42% 700,647
Large Pacer Advisors, Inc. $24,347,587 0.41% 688,563
Large Public Sector Pension Investment Board Pension $23,953,040 0.41% 677,405
Large Man Group plc $22,101,626 0.37% 625,046
Mid Bain Capital Life Sciences Investors, LLC $21,569,600 0.36% 610,000
Large Balyasny Asset Management L.P. $20,748,363 0.35% 586,775
Mid SEGALL BRYANT & HAMILL, LLC $20,712,791 0.35% 585,769
Large Woodline Partners LP $19,750,929 0.33% 558,567
Mega BNP PARIBAS ARBITRAGE, SA $18,668,913 0.32% 527,967
Mega Invesco Ltd. $18,538,362 0.31% 524,275
Small Prosight Management, LP $18,162,027 0.31% 513,632
Mega UBS Group AG $17,504,011 0.30% 495,023
Small SILVERARC CAPITAL MANAGEMENT, LLC $16,276,703 0.28% 460,314
Mega RHUMBLINE ADVISERS $15,895,416 0.27% 449,531
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $14,255,486 0.24% 403,153
Mega Fisher Asset Management, LLC $13,807,337 0.23% 390,479
Mid RICE HALL JAMES & ASSOCIATES, LLC $13,802,563 0.23% 390,344
Mega AQR CAPITAL MANAGEMENT LLC $13,577,424 0.23% 383,977
Mega Legal & General Group Plc $13,462,329 0.23% 380,722
Large GLENMEDE TRUST CO NA Bank $13,369,261 0.23% 378,090
Mid Logos Global Management LP $12,376,000 0.21% 350,000
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $12,022,329 0.20% 339,998
Mega California Public Employees Retirement System Pension $11,605,222 0.20% 328,202
Small Spruce Street Capital LP $11,244,197 0.19% 317,992
Mega RAYMOND JAMES FINANCIAL INC $11,224,464 0.19% 317,434
Mega Swiss National Bank Bank $10,972,208 0.19% 310,300
Mega VICTORY CAPITAL MANAGEMENT INC $10,923,729 0.18% 308,929
Mega ROYAL BANK OF CANADA Bank $10,761,354 0.18% 304,337
Large Squarepoint Ops LLC $9,816,607 0.17% 277,619
Mid GENDELL JEFFREY L $9,321,037 0.16% 263,604
Mega ALLIANCEBERNSTEIN L.P. $9,226,661 0.16% 260,935
Mid C WorldWide Group Holding A/S $8,840,000 0.15% 250,000
Large MACKENZIE FINANCIAL CORP $8,811,075 0.15% 249,182
Mid S&CO INC $8,654,713 0.15% 244,760
Mid PEREGRINE CAPITAL MANAGEMENT LLC $8,628,087 0.15% 244,007
Large CAPITAL FUND MANAGEMENT S.A. $8,594,000 0.15% 243,043
Small Palo Alto Investors LP $8,576,921 0.15% 242,560
Small Atle Fund Management AB $8,573,845 0.15% 242,473
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $8,474,765 0.14% 239,671
Small Eagle Health Investments LP $8,439,477 0.14% 238,673
Mid Senator Investment Group LP $8,309,600 0.14% 235,000
Large ACADIAN ASSET MANAGEMENT LLC $8,059,923 0.14% 227,939
Large Robeco Institutional Asset Management B.V. $7,797,622 0.13% 220,521
Mid Engineers Gate Manager LP $7,372,453 0.12% 208,497
Large ExodusPoint Capital Management, LP $7,224,896 0.12% 204,324
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,994,208 0.12% 197,800
Mega NEUBERGER BERMAN GROUP LLC $6,973,699 0.12% 197,220
Mid MARTINGALE ASSET MANAGEMENT L P $6,886,925 0.12% 194,766
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,789,120 0.11% 192,000
Mid Rock Springs Capital Management LP $6,505,744 0.11% 183,986
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $6,498,991 0.11% 183,795
Mega FRANKLIN RESOURCES INC $6,454,435 0.11% 182,535
Large SG Americas Securities, LLC Broker-Dealer $6,329,192 0.11% 178,993
Large Universal- Beteiligungs- und Servicegesellschaft mbH $6,310,168 0.11% 178,455
Mega BARCLAYS PLC $6,187,397 0.10% 174,983
Large Hudson Bay Capital Management LP $6,139,415 0.10% 173,626
Large Rafferty Asset Management, LLC $5,743,312 0.10% 162,424
Small Tetragon Partners GP Ltd $5,650,209 0.10% 159,791
Key facts CIK 1520262 CUSIP G01767105 13F (30d) 39 filings 20 filers Visit website Investor relations

Report a Problem

Category
Description
Email (optional, for follow-up)