Alkermes plc
DE ˙ DB ˙ IE00B56GVS15
35,96 € ↑0,18 (0,50%)
2026-06-03
DEL PRIS
SecurityDE:8AK / Alkermes plc
InstitutionCerity Partners LLC
Latest Disclosed Ownership31,836 shares
Latest Disclosed Value $ 1,125,736
Cerity Partners LLC reports 1.53% decrease in ownership of 8AK / Alkermes plc

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 31,836 shares of Alkermes plc (DE:8AK) valued at $827,736 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 32,330 shares of Alkermes plc. This represents a change in shares of -1.53% during the quarter. The current value of the position is $1,144,823 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 31,836 -494 -1.53 1,126 24.45 0.0008
2026-02-11 2025-12-31 13F ALKERMES SHS G01767105 32,330 16,562 105.04 905 91.12 0.0013
2025-10-22 2025-09-30 13F ALKERMES COM G01767105 15,768 -4,242 -21.20 473 -17.31 0.0008
2025-08-13 2025-06-30 13F ALKERMES Stock G01767105 20,010 -6,230 -23.74 572 -33.95 0.0010
2025-04-30 2025-03-31 13F ALKERMES Stock G01767105 26,240 8,310 46.35 866 69.80 0.0018
2025-02-13 2024-12-31 13F ALKERMES Stock G01767105 17,930 2,234 14.23 511 16.17 0.0011
2024-11-12 2024-09-30 13F ALKERMES Stock G01767105 15,696 15,696 439 0.0010
2024-08-13 2024-06-30 13F ALKERMES Stock G01767105 0 -23,960 -100.00 0 -100.00
2024-05-14 2024-03-31 13F ALKERMES Stock G01767105 23,960 23,960 649 0.0017
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.