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CITADEL ADVISORS LLC

Position in ALKS — Alkermes plc.

CIK 1423053 MIAMI, FL

Position in ALKS

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$79,262,409
+$45,734,871 QoQ
Shares Held
2,241,584
+87.1% QoQ
Ownership
1.34%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ALKS Over Time

Shares Held

Position Value (USD)

Derivatives in ALKS

reported options exposure · as of Mar 31, 2026
CallValue
$2,351,440
CallShares
66,500
PutValue
$820,352
PutShares
23,200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $928,363,116 across 59 Drug Manufacturers - Specialty & Generic names. ALKS ranks #4 (8.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 ALKS
Alkermes plc.
This page
2,241,584 $79,262,409

All Filings in ALKS

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $79,262,409 2,241,584
2026-03-31 $2,351,440 66,500
2026-03-31 $820,352 23,200
2025-12-31 $609,964 21,800
2025-12-31 $33,527,538 1,198,268
2025-12-31 $2,305,552 82,400
2025-09-30 $21,145,020 704,834
2025-09-30 $1,866,000 62,200
2025-06-30 $326,154 11,400
2025-06-30 $761,026 26,600
2025-06-30 $1,070,672 37,423
2025-03-31 $614,172 18,600
2025-03-31 $759,460 23,000
2025-03-31 $2,785,798 84,367
2024-12-31 $1,530,204 53,206
2024-12-31 $488,920 17,000
2024-12-31 $451,532 15,700
2024-09-30 $2,321,042 82,924
2024-09-30 $517,815 18,500
2024-09-30 $403,056 14,400
2024-06-30 $7,765,357 322,214
2024-06-30 $371,140 15,400
2024-06-30 $433,800 18,000
2024-03-31 $8,878,960 328,000
2024-03-31 $1,469,440 54,283
2024-03-31 $706,527 26,100
2023-12-31 $674,082 24,300
2023-12-31 $1,264,944 45,600
2023-09-30 $1,386,495 49,500
2023-09-30 $1,400,500 50,000
2023-09-30 $10,609,122 378,762
2023-06-30 $46,369,979 1,481,469
2023-06-30 $1,414,760 45,200
2023-06-30 $782,500 25,000
2023-03-31 $797,777 28,300
2023-03-31 $98,231,409 3,484,619
2023-03-31 $1,409,500 50,000
2022-12-31 $167,971,164 6,428,288
2022-12-31 $11,170,575 427,500
2022-12-31 $67,384,044 2,578,800
2022-09-30 $82,225,245 3,682,277
2022-09-30 $11,944,317 534,900
2022-09-30 $783,783 35,100
2022-06-30 $82,884,924 2,782,307
2022-06-30 $935,406 31,400
2022-06-30 $1,212,453 40,700
2022-03-31 $644,595 24,500
2022-03-31 $668,274 25,400
2022-03-31 $61,643,777 2,342,979
2021-12-31 $15,307,405 658,100