L3VLUP
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ALKS in the 13F filings

Alkermes PLC · CUSIP G01767105

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 7 listed it in both
Shares listed
32,475,119
combined, among listed positions
Reported value
$909m
combined, at the quarter end

Among the 92 comparable managers: 18 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +949,187.

Managers listing ALKS in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

30 of 30 holders

ActionFiling
T. Rowe Price Associates Inc8,998,963$252munder 0.1%Trimmed-1,239,39417 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC6,668,028$187m0.29%Added+375,50012 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP3,020,442$85munder 0.1%Added+2,645,25217 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP1,450,841$41munder 0.1%Added+241,89713 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,355,253$38munder 0.1%Added+59,76017 Feb 2026 (the filing on sec.gov)
Artisan Partners LP1,349,122$38m0.06%Trimmed-760,65017 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP1,213,397$34munder 0.1%Added+556,89817 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC1,198,268$34munder 0.1%Added+493,43417 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC1,095,846$31munder 0.1%Added+650,54013 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.911,272$25munder 0.1%Added+382,52317 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC679,633$19munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP562,587$16munder 0.1%Added+357,38717 Feb 2026 (the filing on sec.gov)
Woodline Partners LP558,567$16m0.06%Held017 Feb 2026 (the filing on sec.gov)
Invesco Ltd538,716$15munder 0.1%Trimmed-45,57719 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC522,097$15munder 0.1%Trimmed-46,57810 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC514,324$14munder 0.1%Added+141,90217 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP344,452$9.6munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Man Group PLC312,512$8.7munder 0.1%Trimmed-584,76217 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC273,158$7.6munder 0.1%Added+8,71217 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP215,854$6.0munder 0.1%Trimmed-22,68517 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC152,772$4.3munder 0.1%Added+5127 Oct 2026 (the filing on sec.gov)
Janus Henderson Group Ltd145,804$4.1munder 0.1%Trimmed-198,68617 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP129,899$3.6munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp82,720$2.3munder 0.1%Added+26,33717 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC60,770$1.7munder 0.1%Trimmed-331,41112 Feb 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
8 in Q3 2024 to 9 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ALKS by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20139$1.7bnn.a.n.a.
Q3 20135$1.9bnn.a.n.a.
Q4 20135$2.3bnn.a.n.a.
Q1 20145$2.9bnn.a.n.a.
Q2 20147$3.4bnn.a.n.a.
Q3 20147$3.0bnn.a.n.a.
Q4 20147$4.2bnn.a.n.a.
Q1 20158$4.5bnn.a.n.a.
Q2 20159$4.8bnn.a.n.a.
Q3 201510$4.4bnn.a.n.a.
Q4 201512$5.9bnn.a.n.a.
Q1 201610$2.6bnn.a.n.a.
Q2 20167$3.1bnn.a.n.a.
Q3 20169$3.4bnn.a.n.a.
Q4 201612$4.0bnn.a.n.a.
Q1 20179$4.1bnn.a.n.a.
Q2 201710$4.1bnn.a.n.a.
Q3 20178$3.5bnn.a.n.a.
Q4 20179$3.7bnn.a.n.a.
Q1 20187$3.9bnn.a.n.a.
Q2 20186$2.9bnn.a.n.a.
Q3 20186$3.0bnn.a.n.a.
Q4 20189$1.9bnn.a.n.a.
Q1 201911$2.3bnn.a.n.a.
Q2 201911$1.2bnn.a.n.a.
Q3 20199$1.1bnn.a.n.a.
Q4 201911$1.2bnn.a.n.a.
Q1 202014$948mn.a.n.a.
Q2 202014$1.3bnn.a.n.a.
Q3 202010$1.0bnn.a.n.a.
Q4 202013$1.2bnn.a.n.a.
Q1 202112$1.1bnn.a.n.a.
Q2 202113$1.3bnn.a.n.a.
Q3 202111$1.4bnn.a.n.a.
Q4 20219$1.1bnn.a.n.a.
Q1 202210$1.2bnn.a.n.a.
Q2 202212$903mn.a.n.a.
Q3 202210$547mn.a.n.a.
Q4 202212$831mn.a.n.a.
Q1 202312$708mn.a.n.a.
Q2 202312$703mn.a.n.a.
Q3 202312$778mn.a.n.a.
Q4 20237$754m44
Q1 20248$927m16
Q2 20247$823m43
Q3 20248$955m44
Q4 20247$801m43
Q1 20259$813m72
Q2 20259$642m36
Q3 202510$703m64
Q4 20259$566m1814
Q1 202610$436m1220
Q2 20269$1.2bn1320

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ALKS and LLY →ALKS and JNJ →ALKS and VRTX →Choose a stock to compare with ALKS →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ALKS, latest filings →Back to the 13F Explorer →