Alkermes plc
DE ˙ DB ˙ IE00B56GVS15
35,96 € ↑0,18 (0,50%)
2026-06-03
DEL PRIS
SecurityDE:8AK / Alkermes plc
InstitutionCwm, Llc
Latest Disclosed Ownership11,225 shares
Latest Disclosed Value $ 396,916
Cwm, Llc reports 8.31% decrease in ownership of 8AK / Alkermes plc

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 11,225 shares of Alkermes plc (DE:8AK) valued at $291,850 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 12,242 shares of Alkermes plc. The current value of the position is $403,651 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)
2026-05-14 2026-03-31 13F ALKERMES SHS G01767105 11,225 -1,017 -8.31 397 0.0010
2026-01-26 2025-12-31 13F ALKERMES SHS G01767105 12,242 1,432 13.25 0 0.0009
2025-10-15 2025-09-30 13F ALKERMES SHS G01767105 10,810 -9,659 -47.19 0 0.0010
2025-07-25 2025-06-30 13F ALKERMES SHS G01767105 20,469 19 0.09 1 0.0021
2025-05-01 2025-03-31 13F ALKERMES SHS G01767105 20,450 86 0.42 1 0.0027
2025-02-04 2024-12-31 13F ALKERMES SHS G01767105 20,364 5,817 39.99 1 0.0024
2024-10-08 2024-09-30 13F ALKERMES SHS G01767105 14,547 6,615 83.40 0 0.0018
2024-07-10 2024-06-30 13F ALKERMES SHS G01767105 7,932 5,200 190.34 0 0.0009
2024-04-05 2024-03-31 13F ALKERMES SHS G01767105 2,732 733 36.67 0 0.0004
2024-02-01 2023-12-31 13F ALKERMES SHS G01767105 1,999 962 92.77 0 0.0003
2023-10-11 2023-09-30 13F ALKERMES SHS G01767105 1,037 618 147.49 0 0.0002
2023-08-03 2023-06-30 13F ALKERMES SHS G01767105 419 185 79.06 0 0.0001
2023-05-01 2023-03-31 13F ALKERMES SHS G01767105 234 69 41.82 0 0.0000
2023-02-01 2022-12-31 13F ALKERMES SHS G01767105 165 74 81.32 0 -100.00 0.0000
2022-10-27 2022-09-30 13F ALKERMES SHS G01767105 91 -80 -46.78 2 -60.00 0.0000
2022-07-28 2022-06-30 13F ALKERMES SHS G01767105 171 53 44.92 5 66.67 0.0000
2022-04-21 2022-03-31 13F ALKERMES SHS G01767105 118 32 37.21 3 50.00 0.0000
2022-01-31 2021-12-31 13F ALKERMES SHS G01767105 86 75 681.82 2 0.0000
2021-09-15 2021-06-30 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-07-29 2021-06-30 13F ALKERMES SHS G01767105 11 0 0 0.0000
2021-09-15 2021-03-31 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-15 2020-12-31 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-15 2020-09-30 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-15 2020-06-30 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-15 2020-03-31 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-14 2019-12-31 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-14 2019-09-30 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-14 2019-06-30 13F/A-1 ALKERMES SHS G01767105 11 0 0.00 0 0.0000
2021-09-02 2019-03-31 13F/A-1 ALKERMES SHS G01767105 11 -1 -8.33 0 0.0000
2019-01-25 2018-12-31 13F ALKERMES SHS G01767105 12 -203 -94.42 0 -100.00
2018-10-29 2018-09-30 13F ALKERMES SHS G01767105 215 215 9 0.0002
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.