Alkermes plc. - COMMON STOCK (ALKS)

CUSIP: G01767105

Q3 2025 13F Holders as of 30 Sep 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
166,591,536
Total 13F shares
169,341,595
Share change
+505,354
Total reported value
$5,079,979,539
Put/Call ratio
43%
Price per share
$30.00
Number of holders
352
Value change
+$19,240,212
Number of buys
188
Number of sells
168

Security key

G01767105

Report period

Q3 2025

Institutions

352

Top holders

10

Top shareholders of ALKS - Alkermes plc. - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
BlackRock, Inc.
13F 13D/G
Company
16%
from 13D/G
27,856,163
$796,964,824 30 Jun 2025
STATE STREET CORP
13D/G 13F
STATE STREET CORPORATION · Company
5.2%
8,540,351
$256,210,530 +$15,530,430 30 Sep 2025
WELLINGTON MANAGEMENT GROUP LLP
13D/G 13F
Company
4.3%
7,012,483
$201,749,136 $0 31 Dec 2024
VANGUARD GROUP INC
13F
Company
11%
18,503,074
$529,372,946 30 Jun 2025
13F
PRICE T ROWE ASSOCIATES INC /MD/
13F
Company
6%
10,041,900
$287,300,000 30 Jun 2025
13F
BAKER BROS. ADVISORS LP
13F
Company
3.8%
6,410,603
$183,407,352 30 Jun 2025
13F
RENAISSANCE TECHNOLOGIES LLC
13F
Company
3.5%
5,810,160
$166,228,678 30 Jun 2025
13F
JPMORGAN CHASE & CO
13F
Company
2.9%
4,836,294
$138,366,386 30 Jun 2025
13F
RTW INVESTMENTS, LP
13F
Company
2.8%
4,682,289
$133,960,288 30 Jun 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
2.4%
4,023,552
$115,127,593 30 Jun 2025
13F
AMERICAN CENTURY COMPANIES INC
13F
Company
2.2%
3,657,223
$104,633,217 30 Jun 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
1.9%
3,096,637
$88,598,653 30 Jun 2025
13F
PRIMECAP MANAGEMENT CO/CA/
13F
Company
1.7%
2,902,510
$83,040,811 30 Jun 2025
13F
Avoro Capital Advisors LLC
13F
Company
1.7%
2,900,000
$82,969,000 30 Jun 2025
13F
Holocene Advisors, LP
13F
Company
1.7%
2,853,768
$81,646,302 30 Jun 2025
13F
Commodore Capital LP
13F
Company
1.5%
2,450,000
$70,094,500 30 Jun 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
1.3%
2,155,087
$61,657,039 30 Jun 2025
13F
LOOMIS SAYLES & CO L P
13F
Company
1.3%
2,109,894
$60,364,067 30 Jun 2025
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
1.3%
2,092,049
$59,853,522 30 Jun 2025
13F
Nuveen, LLC
13F
Company
1.2%
2,048,073
$58,595,369 30 Jun 2025
13F
NORGES BANK
13F
Company
1.1%
1,863,895
$53,326,036 30 Jun 2025
13F
NORTHERN TRUST CORP
13F
Company
1.1%
1,813,609
$51,887,352 30 Jun 2025
13F
MORGAN STANLEY
13F
Company
1.1%
1,802,052
$51,556,734 30 Jun 2025
13F
GOLDMAN SACHS GROUP INC
13F
Company
1%
1,667,697
$47,712,811 30 Jun 2025
13F
Artisan Partners Limited Partnership
13F
Company
0.93%
1,541,807
$44,111,098 30 Jun 2025
13F
Bank of New York Mellon Corp
13F
Company
0.92%
1,535,886
$43,941,690 30 Jun 2025
13F
FIRST TRUST ADVISORS LP
13F
Company
0.84%
1,397,281
$39,976,209 30 Jun 2025
13F
Paradigm Biocapital Advisors LP
13F
Company
0.83%
1,375,569
$39,355,029 30 Jun 2025
13F
UBS Group AG
13F
Company
0.81%
1,342,402
$38,406,121 30 Jun 2025
13F
FMR LLC
13F
Company
0.77%
1,278,006
$36,563,754 30 Jun 2025
13F
BNP PARIBAS FINANCIAL MARKETS
13F
Company
0.68%
1,135,478
$32,486,026 30 Jun 2025
13F
Frazier Life Sciences Management, L.P.
13F
Company
0.6%
1,000,647
$28,628,511 30 Jun 2025
13F
Affinity Asset Advisors, LLC
13F
Company
0.6%
1,000,000
$28,610,000 30 Jun 2025
13F
PRINCIPAL FINANCIAL GROUP INC
13F
Company
0.55%
914,795
$26,172,285 30 Jun 2025
13F
Pacer Advisors, Inc.
13F
Company
0.54%
906,957
$25,948,040 30 Jun 2025
13F
PANAGORA ASSET MANAGEMENT INC
13F
Company
0.53%
877,174
$25,095,948 30 Jun 2025
13F
DRIEHAUS CAPITAL MANAGEMENT LLC
13F
Company
0.5%
826,811
$23,655,063 30 Jun 2025
13F
D. E. Shaw & Co., Inc.
13F
Company
0.49%
820,096
$23,462,947 30 Jun 2025
13F
AMERIPRISE FINANCIAL INC
13F
Company
0.42%
706,007
$20,198,861 30 Jun 2025
13F
BARCLAYS PLC
13F
Company
0.42%
694,122
$19,858,831 30 Jun 2025
13F
FARALLON CAPITAL MANAGEMENT LLC
13F
Company
0.42%
691,663
$19,788,478 30 Jun 2025
13F
ACADIAN ASSET MANAGEMENT LLC
13F
Company
0.41%
687,252
$19,646,000 30 Jun 2025
13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F
Company
0.4%
671,429
$19,209,583 30 Jun 2025
13F
MetLife Investment Management, LLC
13F
Company
0.39%
656,648
$18,786,701 30 Jun 2025
13F
PUBLIC SECTOR PENSION INVESTMENT BOARD
13F
Company
0.38%
636,913
$18,222,081 30 Jun 2025
13F
Invesco Ltd.
13F
Company
0.37%
613,023
$17,538,588 30 Jun 2025
13F
SEGALL BRYANT & HAMILL, LLC
13F
Company
0.36%
593,938
$16,992,566 30 Jun 2025
13F
Woodline Partners LP
13F
Company
0.34%
558,465
$15,977,684 30 Jun 2025
13F
MPM BioImpact LLC
13F
Company
0.33%
549,262
$15,714,386 30 Jun 2025
13F
Legal & General Group Plc
13F
Company
0.32%
535,342
$15,316,135 30 Jun 2025
13F

Institutional Holders of Alkermes plc. - COMMON STOCK (ALKS) as of Q3 2025

As of 30 Sep 2025, Alkermes plc. - COMMON STOCK (ALKS) was held by 352 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 169,341,595 shares. The largest 10 holders included BlackRock, Inc., VANGUARD GROUP INC, PRICE T ROWE ASSOCIATES INC /MD/, STATE STREET CORP, BAKER BROS. ADVISORS LP, RENAISSANCE TECHNOLOGIES LLC, AMERICAN CENTURY COMPANIES INC, GEODE CAPITAL MANAGEMENT, LLC, JPMORGAN CHASE & CO, and DIMENSIONAL FUND ADVISORS LP. This page lists 353 institutional shareholders reporting positions in this security for the Q3 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders
349
Q3 2025 holders
352
Holder diff
3
Investor Q2 2025 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2025 Value $ Q3 2025 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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