Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionCI Private Wealth, LLC
Latest Disclosed Ownership11,546 shares
Latest Disclosed Value $ 408,268
CI Private Wealth, LLC reports 47.36% decrease in ownership of ALKS / Alkermes plc

On May 15, 2026 - CI Private Wealth, LLC filed a 13F-HR form disclosing ownership of 11,546 shares of Alkermes plc (US:ALKS) valued at $408,267 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 9, 2026 disclosing 21,932 shares of Alkermes plc. This represents a change in shares of -47.36% during the quarter. The current value of the position is $493,707 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)
2026-05-15 2026-03-31 13F ALKERMES SHS G01767105 11,546 -10,386 -47.36 408 -33.22 0.0006
2026-03-09 2025-12-31 13F/A-1 ALKERMES SHS G01767105 21,932 -19,431 -46.98 612 -50.73 0.0008
2026-02-19 2025-12-31 13F ALKERMES SHS G01767105 21,932 -19,431 612 0.0002
2025-11-14 2025-09-30 13F ALKERMES SHS G01767105 41,363 -129 -0.31 1,241 4.47 0.0020
2025-09-26 2025-06-30 13F/A-1 ALKERMES SHS G01767105 41,492 1,517 3.79 1,187 -10.01 0.0016
2025-08-15 2025-06-30 13F ALKERMES SHS G01767105 41,494 1,519 1,187 0.0010
2025-05-14 2025-03-31 13F ALKERMES SHS G01767105 39,975 -469 -1.16 1,320 13.41 0.0022
2025-02-10 2024-12-31 13F ALKERMES SHS G01767105 40,444 -36 -0.09 1,163 2.65 0.0019
2024-11-12 2024-09-30 13F ALKERMES SHS G01767105 40,480 45 0.11 1,133 16.32 0.0018
2024-08-13 2024-06-30 13F ALKERMES SHS G01767105 40,435 17,669 77.61 974 58.12 0.0017
2024-05-09 2024-03-31 13F ALKERMES SHS G01767105 22,766 13,420 143.59 616 137.84 0.0011
2024-02-09 2023-12-31 13F ALKERMES SHS G01767105 9,346 9,346 259 0.0005
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.