Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership48,337 shares
Latest Disclosed Value $ 1,730,847
Hsbc Holdings Plc reports 12.89% increase in ownership of ALKS / Alkermes plc

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 48,337 shares of Alkermes plc (US:ALKS) valued at $1,709,196 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 42,817 shares of Alkermes plc. This represents a change in shares of 12.89% during the quarter. The current value of the position is $2,066,890 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)
2026-04-30 2026-03-31 13F ALKERMES SHS G01767105 48,337 5,520 12.89 1,731 43.93 0.0001
2026-03-20 2025-12-31 13F/A-1 ALKERMES SHS G01767105 42,817 7,269 20.45 1,202 13.40 0.0006
2026-03-06 2025-12-31 13F ALKERMES SHS G01767105 42,817 7,269 1,202 0.0001
2025-11-13 2025-09-30 13F ALKERMES SHS G01767105 35,548 -75,268 -67.92 1,060 -66.60 0.0006
2025-08-13 2025-06-30 13F ALKERMES SHS G01767105 110,816 29,760 36.72 3,175 20.27 0.0019
2025-05-14 2025-03-31 13F ALKERMES SHS G01767105 81,056 51,393 173.26 2,639 208.29 0.0016
2025-02-14 2024-12-31 13F ALKERMES SHS G01767105 29,663 16,534 125.93 856 134.52 0.0005
2024-11-14 2024-09-30 13F ALKERMES SHS G01767105 13,129 13,129 365 0.0002
2024-08-12 2024-06-30 13F ALKERMES SHS G01767105 0 -74,512 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ALKERMES SHS G01767105 74,512 46,644 167.37 2,017 161.61 0.0014
2024-02-12 2023-12-31 13F ALKERMES SHS G01767105 27,868 -64,103 -69.70 772 -70.24 0.0007
2023-11-13 2023-09-30 13F ALKERMES SHS G01767105 91,971 54,231 143.70 2,592 119.76 0.0027
2023-08-11 2023-06-30 13F ALKERMES SHS G01767105 37,740 16,668 79.10 1,180 99.16 0.0012
2023-05-15 2023-03-31 13F ALKERMES SHS G01767105 21,072 7,402 54.15 592 68.18 0.0007
2023-02-14 2022-12-31 13F ALKERMES SHS G01767105 13,670 13,670 353 0.0004
2022-08-11 2022-06-30 13F ALKERMES SHS G01767105 0 -31,887 -100.00 0 -100.00
2022-05-16 2022-03-31 13F ALKERMES SHS G01767105 31,887 8,074 33.91 853 53.14 0.0010
2022-02-11 2021-12-31 13F ALKERMES SHS G01767105 23,813 3,576 17.67 557 -11.16 0.0005
2021-11-12 2021-09-30 13F ALKERMES SHS G01767105 20,237 -8,391 -29.31 627 -11.06 0.0006
2021-08-13 2021-06-30 13F ALKERMES SHS G01767105 28,628 -7,993 -21.83 705 2.47 0.0008
2021-05-14 2021-03-31 13F ALKERMES SHS G01767105 36,621 -4,628 -11.22 688 -16.61 0.0008
2021-02-25 2020-12-31 13F/A-1 ALKERMES SHS G01767105 41,249 -1,191 -2.81 825 17.19 0.0011
2021-02-12 2020-12-31 13F ALKERMES SHS G01767105 41,249 -1,191 825 195.8853
2020-11-12 2020-09-30 13F ALKERMES SHS G01767105 42,440 930 2.24 704 -12.66 0.0011
2020-08-14 2020-06-30 13F ALKERMES SHS G01767105 41,510 41,510 806 0.0015
2020-05-15 2020-03-31 13F ALKERMES SHS G01767105 0 -25,114 -100.00 0 -100.00
2020-02-14 2019-12-31 13F ALKERMES SHS G01767105 25,114 -53,513 -68.06 513 -66.56 0.0009
2019-11-14 2019-09-30 13F ALKERMES SHS G01767105 78,627 -35,780 -31.27 1,534 -40.52 0.0029
2019-08-13 2019-06-30 13F ALKERMES SHS G01767105 114,407 114,407 2,579 0.0049
2019-02-13 2018-12-31 13F ALKERMES SHS G01767105 0 -5,520 -100.00 0 -100.00
2018-11-13 2018-09-30 13F ALKERMES SHS G01767105 5,520 5,520 235 0.0004
2018-05-11 2018-03-31 13F ALKERMES SHS G01767105 0 -16,181 -100.00 0 -100.00
2018-02-14 2017-12-31 13F ALKERMES SHS G01767105 16,181 2,324 16.77 885 25.71 0.0013
2017-11-14 2017-09-30 13F ALKERMES SHS G01767105 13,857 13,857 704 0.0011
2017-08-14 2017-06-30 13F ALKERMES SHS G01767105 0 -17,351 -100.00 0 -100.00
2017-05-15 2017-03-31 13F ALKERMES SHS G01767105 17,351 3,673 26.85 1,015 33.55 0.0021
2017-02-09 2016-12-31 13F ALKERMES SHS G01767105 13,678 -4,592 -25.13 760 -11.53 0.0018
2016-11-14 2016-09-30 13F ALKERMES SHS G01767105 18,270 110 0.61 859 9.43 0.0021
2016-08-12 2016-06-30 13F ALKERMES SHS G01767105 18,160 -8 -0.04 785 26.41 0.0022
2016-05-13 2016-03-31 13F ALKERMES SHS G01767105 18,168 -1,597 -8.08 621 -60.40 0.0017
2016-02-12 2015-12-31 13F ALKERMES SHS G01767105 19,765 -12,894 -39.48 1,568 -18.21 0.0038
2015-11-12 2015-09-30 13F ALKERMES SHS G01767105 32,659 -9,811 -23.10 1,917 -29.83 0.0048
2015-08-13 2015-06-30 13F ALKERMES SHS G01767105 42,470 3,154 8.02 2,732 13.98 0.0056
2015-05-14 2015-03-31 13F ALKERMES SHS G01767105 39,316 28,878 276.66 2,397 292.31 0.0046
2015-02-13 2014-12-31 13F ALKERMES SHS G01767105 10,438 10,438 611 0.0013
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.