Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionLPL Financial LLC
Latest Disclosed Ownership39,447 shares
Latest Disclosed Value $ 1,394,846
LPL Financial LLC reports 10.84% decrease in ownership of ALKS / Alkermes plc

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 39,447 shares of Alkermes plc (US:ALKS) valued at $1,394,846 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 44,242 shares of Alkermes plc. This represents a change in shares of -10.84% during the quarter. The current value of the position is $1,686,754 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F ALKERMES SHS G01767105 39,447 -4,795 -10.84 1,395 12.69 0.0004
2026-02-11 2025-12-31 13F ALKERMES SHS G01767105 44,242 397 0.91 1,238 -5.93 0.0003
2025-11-12 2025-09-30 13F ALKERMES SHS G01767105 43,845 10,182 30.25 1,315 36.55 0.0004
2025-08-12 2025-06-30 13F ALKERMES SHS G01767105 33,663 6,512 23.98 963 7.48 0.0003
2025-05-07 2025-03-31 13F ALKERMES SHS G01767105 27,151 27,151 897 0.0003
2024-11-08 2024-09-30 13F ALKERMES SHS G01767105 0 -8,691 -100.00 0 -100.00
2024-08-07 2024-06-30 13F ALKERMES SHS G01767105 8,691 -2,646 -23.34 209 -31.70 0.0001
2024-05-10 2024-03-31 13F ALKERMES SHS G01767105 11,337 3,812 50.66 307 47.12 0.0002
2024-02-14 2023-12-31 13F ALKERMES SHS G01767105 7,525 224 3.07 209 1.96 0.0001
2023-11-13 2023-09-30 13F ALKERMES SHS G01767105 7,301 80 1.11 205 -9.73 0.0001
2023-07-31 2023-06-30 13F ALKERMES SHS G01767105 7,221 -5,050 -41.15 226 -34.49 0.0002
2023-05-10 2023-03-31 13F ALKERMES SHS G01767105 12,271 2,927 31.32 346 41.39 0.0003
2023-02-07 2022-12-31 13F ALKERMES SHS G01767105 9,344 9,344 244 0.0002
2022-02-14 2021-12-31 13F ALKERMES SHS G01767105 0 -22,136 -100.00 0 -100.00
2021-11-15 2021-09-30 13F ALKERMES SHS G01767105 22,136 22,136 683 0.0006
2019-02-07 2018-12-31 13F ALKERMES SHS G01767105 0 -4,997 -100.00 0 -100.00
2018-11-14 2018-09-30 13F ALKERMES SHS G01767105 4,997 4,997 212 0.0005
2018-08-14 2018-06-30 13F ALKERMES SHS G01767105 0 -7,343 -100.00 0 -100.00
2018-05-15 2018-03-31 13F ALKERMES SHS G01767105 7,343 7,343 426 0.0012
2016-05-16 2016-03-31 13F ALKERMES SHS G01767105 0 -5,400 -100.00 0 -100.00
2016-02-12 2015-12-31 13F ALKERMES SHS G01767105 5,400 5,400 -16.07 406 98.05 0.0011
2014-02-13 2013-12-31 13F ALKERMES SHS G01767105 0 -6,434 -100.00 0 -100.00
2013-11-04 2013-09-30 13F ALKERMES SHS G01767105 6,434 6,434 205 0.0014
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.