Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionAxa S.a.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Axa S.a. closes position in ALKS / Alkermes plc

On November 14, 2025 - Axa S.a. filed a 13F-HR form disclosing ownership of 0 shares of Alkermes plc (US:ALKS) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 236,189 shares of Alkermes plc. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 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)
2025-11-14 2025-09-30 13F ALKERMES SHS G01767105 0 -236,189 -100.00 0 -100.00
2025-08-14 2025-06-30 13F ALKERMES SHS G01767105 236,189 380 0.16 6,757 -13.22 0.0194
2025-05-15 2025-03-31 13F ALKERMES SHS G01767105 235,809 -57,288 -19.55 7,786 -7.63 0.0256
2025-02-14 2024-12-31 13F ALKERMES SHS G01767105 293,097 -191,329 -39.50 8,429 -37.83 0.0256
2024-11-14 2024-09-30 13F ALKERMES SHS G01767105 484,426 3,169 0.66 13,559 16.91 0.0401
2025-02-25 2024-06-30 13F/A-1 ALKERMES SHS G01767105 481,257 165 0.03 11,598 -10.94 0.0345
2024-08-14 2024-06-30 13F ALKERMES SHS G01767105 481,257 165 11,598 0.0345
2024-05-15 2024-03-31 13F ALKERMES SHS G01767105 481,092 187,863 64.07 13,023 60.11 0.0390
2024-07-16 2023-12-31 13F/A-1 ALKERMES SHS G01767105 293,229 -7,094 -2.36 8,134 -3.30 0.0262
2024-02-14 2023-12-31 13F ALKERMES SHS G01767105 293,229 -7,094 8,134 0.0159
2023-11-14 2023-09-30 13F ALKERMES SHS G01767105 300,323 -28,223 -8.59 8,412 -18.20 0.0296
2023-08-14 2023-06-30 13F ALKERMES SHS G01767105 328,546 -10,410 -3.07 10,283 7.62 0.0342
2023-05-15 2023-03-31 13F ALKERMES SHS G01767105 338,956 10,457 3.18 9,555 11.32 0.0329
2023-02-14 2022-12-31 13F ALKERMES SHS G01767105 328,499 -1,734 -0.53 8,584 16.40 0.0310
2023-02-14 2022-09-30 13F/A-1 Alkermes SHS G01767105 330,233 7,295 2.26 7,374 -23.35 0.0290
2022-11-14 2022-09-30 13F Alkermes SHS G01767105 330,233 7,295 7,374 0.0290
2023-02-14 2022-06-30 13F/A-1 Alkermes SHS G01767105 322,938 62,888 24.18 9,620 40.62 0.0357
2022-08-15 2022-06-30 13F Alkermes SHS G01767105 322,938 62,888 9,620 0.0357
2023-02-14 2022-03-31 13F/A-1 Alkermes SHS G01767105 260,050 260,050 6,842 0.0194
2022-05-13 2022-03-31 13F Alkermes SHS G01767105 260,050 260,050 6,842 0.0194
2022-02-14 2021-12-31 13F Alkermes SHS G01767105 0 -178,500 -100.00 0 -100.00
2021-11-15 2021-09-30 13F Alkermes SHS G01767105 178,500 92,200 106.84 5,505 160.16 0.0154
2021-08-13 2021-06-30 13F/A-1 Alkermes SHS G01767105 86,300 0 0.00 2,116 31.27 0.0060
2021-08-13 2021-06-30 13F Alkermes SHS G01767105 86,300 0 2,116 0.0036
2021-05-14 2021-03-31 13F Alkermes SHS G01767105 86,300 6,100 7.61 1,612 0.75 0.0049
2021-02-12 2020-12-31 13F Alkermes SHS G01767105 80,200 61,400 326.60 1,600 412.82 0.0050
2021-02-11 2020-09-30 13F/A-1 Alkermes SHS G01767105 18,800 0 0.00 312 -14.52 0.0011
2020-11-13 2020-09-30 13F Alkermes SHS G01767105 18,800 0 312 622.8015
2021-02-12 2020-06-30 13F/A-1 ALKERMES SHS G01767105 18,800 18,800 365 0.0014
2020-08-14 2020-06-30 13F ALKERMES SHS G01767105 18,800 18,800 365 1,439.4308
2019-05-14 2019-03-31 13F ALKERMES SHS G01767105 0 -242,295 -100.00 0 -100.00
2019-02-13 2018-12-31 13F ALKERMES SHS G01767105 242,295 -45,680 -15.86 7,150 -41.49 0.0312
2018-11-08 2018-09-30 13F ALKERMES SHS G01767105 287,975 0 0.00 12,221 3.10 0.0448
2018-08-13 2018-06-30 13F ALKERMES SHS G01767105 287,975 43,182 17.64 11,853 -16.46 0.0454
2018-05-14 2018-03-31 13F ALKERMES SHS G01767105 244,793 -62,525 -20.35 14,189 -15.64 0.0566
2018-02-13 2017-12-31 13F ALKERMES SHS G01767105 307,318 140,392 84.10 16,819 98.17 0.0660
2017-12-01 2017-09-30 13F/A-1 ALKERMES SHS G01767105 166,926 166,926 8,487 0.0366
2017-11-13 2017-09-30 13F ALKERMES SHS G01767105 166,926 166,926 8,487
2016-05-13 2016-03-31 13F ALKERMES SHS G01767105 0 -165,863 -100.00 0 -100.00
2016-02-12 2015-12-31 13F ALKERMES SHS G01767105 165,863 -3,486 -2.06 13,166 32.51 0.0575
2015-11-13 2015-09-30 13F ALKERMES SHS G01767105 169,349 -156,941 -48.10 9,936 -52.67 0.0407
2015-08-13 2015-06-30 13F ALKERMES SHS G01767105 326,290 0 0.00 20,993 5.52 0.0840
2015-05-13 2015-03-31 13F ALKERMES SHS G01767105 326,290 14,136 4.53 19,894 8.83 0.0820
2015-02-13 2014-12-31 13F ALKERMES SHS G01767105 312,154 14,018 4.70 18,280 43.02 0.0733
2014-11-13 2014-09-30 13F ALKERMES SHS G01767105 298,136 -73,981 -19.88 12,781 -31.76 0.0546
2014-08-13 2014-06-30 13F ALKERMES SHS G01767105 372,117 -15,578 -4.02 18,729 9.57 0.0779
2014-05-13 2014-03-31 13F ALKERMES SHS G01767105 387,695 64,218 19.85 17,093 29.96 0.0744
2014-02-13 2013-12-31 13F ALKERMES SHS G01767105 323,477 18,341 6.01 13,153 28.21 0.0589
2013-11-13 2013-09-30 13F ALKERMES SHS G01767105 305,136 210,346 221.91 10,259 277.31 0.0505
2013-08-12 2013-06-30 13F ALKERMES SHS G01767105 94,790 94,790 2,719 0.0144
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.