Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionUs Bancorp \de\
Latest Disclosed Ownership933 shares
Latest Disclosed Value $ 32,991
Us Bancorp \de\ reports 23.40% decrease in ownership of ALKS / Alkermes plc

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 933 shares of Alkermes plc (US:ALKS) valued at $32,991 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 1,218 shares of Alkermes plc. This represents a change in shares of -23.40% during the quarter. The current value of the position is $39,895 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 933 -285 -23.40 33 -5.88 0.0000
2026-01-30 2025-12-31 13F ALKERMES SHS G01767105 1,218 -1,991 -62.04 34 -64.58 0.0000
2025-11-12 2025-09-30 13F ALKERMES SHS G01767105 3,209 178 5.87 96 11.63 0.0001
2025-07-24 2025-06-30 13F ALKERMES SHS G01767105 3,031 -689 -18.52 87 -29.51 0.0001
2025-05-08 2025-03-31 13F ALKERMES SHS G01767105 3,720 56 1.53 123 16.19 0.0002
2025-02-05 2024-12-31 13F ALKERMES SHS G01767105 3,664 -6,638 -64.43 105 -63.54 0.0001
2024-10-28 2024-09-30 13F ALKERMES SHS G01767105 10,302 3,378 48.79 288 73.49 0.0004
2024-08-07 2024-06-30 13F ALKERMES SHS G01767105 6,924 -20 -0.29 167 -11.23 0.0002
2024-05-08 2024-03-31 13F ALKERMES SHS G01767105 6,944 -2,044 -22.74 188 -24.90 0.0003
2024-02-09 2023-12-31 13F ALKERMES SHS G01767105 8,988 165 1.87 249 0.81 0.0004
2023-11-03 2023-09-30 13F ALKERMES SHS G01767105 8,823 5,435 160.42 247 133.02 0.0004
2023-08-10 2023-06-30 13F ALKERMES SHS G01767105 3,388 -238 -6.56 106 3.92 0.0002
2023-05-09 2023-03-31 13F ALKERMES COMMON STOCK G01767105 3,626 -1,451 -28.58 102 -22.73 0.0002
2023-02-13 2022-12-31 13F ALKERMES COMMON STOCK G01767105 5,077 -838 -14.17 133 -0.75 0.0002
2022-10-27 2022-09-30 13F ALKERMES COMMON STOCK G01767105 5,915 -2,723 -31.52 133 -48.45 0.0003
2022-08-01 2022-06-30 13F ALKERMES COMMON STOCK G01767105 8,638 -1,933 -18.29 258 -7.53 0.0005
2022-05-11 2022-03-31 13F ALKERMES COMMON STOCK G01767105 10,571 2,044 23.97 279 40.91 0.0005
2022-02-11 2021-12-31 13F ALKERMES COMMON STOCK G01767105 8,527 4,327 103.02 198 52.31 0.0003
2021-11-10 2021-09-30 13F ALKERMES COMMON STOCK G01767105 4,200 0 0.00 130 26.21 0.0002
2021-08-05 2021-06-30 13F ALKERMES COMMON STOCK G01767105 4,200 -78 -1.82 103 28.75 0.0002
2021-04-28 2021-03-31 13F ALKERMES COMMON STOCK G01767105 4,278 658 18.18 80 11.11 0.0002
2021-02-04 2020-12-31 13F ALKERMES COMMON STOCK G01767105 3,620 1,861 105.80 72 148.28 0.0002
2020-11-10 2020-09-30 13F ALKERMES COMMON STOCK G01767105 1,759 577 48.82 29 26.09 0.0001
2020-08-07 2020-06-30 13F ALKERMES COMMON STOCK G01767105 1,182 711 150.96 23 228.57 0.0001
2020-05-13 2020-03-31 13F ALKERMES COMMON STOCK G01767105 471 333 241.30 7 133.33 0.0000
2020-02-04 2019-12-31 13F ALKERMES COMMON STOCK G01767105 138 -149 -51.92 3 -50.00 0.0000
2019-11-08 2019-09-30 13F ALKERMES COMMON STOCK G01767105 287 46 19.09 6 0.00 0.0000
2019-08-13 2019-06-30 13F ALKERMES COMMON STOCK G01767105 241 -219 -47.61 6 -64.71 0.0000
2019-05-08 2019-03-31 13F ALKERMES COMMON STOCK G01767105 460 63 15.87 17 41.67 0.0000
2019-02-13 2018-12-31 13F ALKERMES COMMON STOCK G01767105 397 -1,747 -81.48 12 -86.96 0.0000
2018-10-31 2018-09-30 13F ALKERMES COMMON STOCK G01767105 2,144 -163 -7.07 92 -3.16 0.0003
2018-08-08 2018-06-30 13F ALKERMES COMMON STOCK G01767105 2,307 -2,119 -47.88 95 -62.89 0.0003
2018-05-08 2018-03-31 13F ALKERMES COMMON STOCK G01767105 4,426 159 3.73 256 9.87 0.0008
2018-02-02 2017-12-31 13F ALKERMES COMMON STOCK G01767105 4,267 330 8.38 233 16.50 0.0007
2017-11-13 2017-09-30 13F ALKERMES COMMON STOCK G01767105 3,937 -37 -0.93 200 -13.42 0.0006
2017-07-19 2017-06-30 13F ALKERMES COMMON STOCK G01767105 3,974 3,122 366.43 231 362.00 0.0008
2017-05-03 2017-03-31 13F ALKERMES COMMON STOCK G01767105 852 -288 -25.26 50 -20.63 0.0002
2017-02-08 2016-12-31 13F ALKERMES COMMON STOCK G01767105 1,140 544 91.28 63 133.33 0.0002
2016-11-04 2016-09-30 13F ALKERMES COMMON STOCK G01767105 596 65 12.24 27 12.50 0.0001
2016-08-10 2016-06-30 13F ALKERMES COMMON STOCK G01767105 531 -251 -32.10 24 -11.11 0.0001
2016-05-13 2016-03-31 13F ALKERMES COMMON STOCK G01767105 782 -715 -47.76 27 -77.31 0.0001
2016-02-10 2015-12-31 13F ALKERMES COMMON STOCK G01767105 1,497 130 9.51 119 48.75 0.0005
2015-11-16 2015-09-30 13F ALKERMES COMMON STOCK G01767105 1,367 445 48.26 80 33.33 0.0003
2015-08-10 2015-06-30 13F ALKERMES COMMON STOCK G01767105 922 73 8.60 60 15.38 0.0002
2015-05-08 2015-03-31 13F ALKERMES COMMON STOCK G01767105 849 -998 -54.03 52 -51.85 0.0002
2015-02-13 2014-12-31 13F ALKERMES COMMON STOCK G01767105 1,847 787 74.25 108 134.78 0.0004
2014-11-14 2014-09-30 13F ALKERMES COMMON STOCK G01767105 1,060 -156 -12.83 46 -24.59 0.0002
2014-08-14 2014-06-30 13F ALKERMES COMMON STOCK G01767105 1,216 -791 -39.41 61 -31.46 0.0002
2014-05-14 2014-03-31 13F ALKERMES COMMON STOCK G01767105 2,007 -555 -21.66 89 -15.24 0.0004
2014-02-13 2013-12-31 13F ALKERMES COMMON STOCK G01767105 2,562 -639 -19.96 105 -2.78 0.0004
2013-11-07 2013-09-30 13F ALKERMES COMMON STOCK G01767105 3,201 926 40.70 108 66.15 0.0005
2013-08-09 2013-06-30 13F ALKERMES COMMON STOCK G01767105 2,275 2,275 65 0.0003
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.