Alkermes plc
US ˙ NasdaqGS ˙ IE00B56GVS15

SecurityALKS / Alkermes plc
InstitutionCaptrust Financial Advisors
Latest Disclosed Ownership15,793 shares
Latest Disclosed Value $ 558,248
Captrust Financial Advisors reports 57.05% decrease in ownership of ALKS / Alkermes plc

On May 14, 2026 - Captrust Financial Advisors filed a 13F-HR form disclosing ownership of 15,793 shares of Alkermes plc (US:ALKS) valued at $558,440 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 36,767 shares of Alkermes plc. This represents a change in shares of -57.05% during the quarter. The current value of the position is $675,309 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.

Upgrade to unlock premium data and export to Excel .

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 PLC SHS Stock G01767105 15,793 -20,974 -57.05 558 -45.72 0.0010
2026-02-17 2025-12-31 13F ALKERMES PLC SHS Stock G01767105 36,767 6,037 19.65 1,029 11.62 0.0020
2025-11-19 2025-09-30 13F ALKERMES PLC SHS Stock G01767105 30,730 -1,289 -4.03 922 0.55 0.0019
2025-08-15 2025-06-30 13F ALKERMES PLC SHS Stock G01767105 32,019 12,557 64.52 916 42.68 0.0020
2025-05-15 2025-03-31 13F ALKERMES PLC SHS Stock G01767105 19,462 1,100 5.99 643 21.59 0.0016
2025-02-14 2024-12-31 13F ALKERMES PLC SHS Stock G01767105 18,362 1,619 9.67 528 12.82 0.0015
2024-11-14 2024-09-30 13F ALKERMES PLC SHS Stock G01767105 16,743 -641 -3.69 469 11.96 0.0014
2024-08-15 2024-06-30 13F ALKERMES PLC SHS Stock G01767105 17,384 1,974 12.81 419 0.24 0.0013
2024-05-15 2024-03-31 13F ALKERMES PLC SHS Stock G01767105 15,410 -12,714 -45.21 417 -46.54 0.0015
2024-02-14 2023-12-31 13F ALKERMES PLC SHS Stock G01767105 28,124 4,244 17.77 780 16.77 0.0027
2023-11-15 2023-09-30 13F ALKERMES PLC SHS Stock G01767105 23,880 8,316 53.43 669 37.17 0.0026
2023-08-15 2023-06-30 13F ALKERMES PLC SHS Stock G01767105 15,564 1,089 7.52 487 19.36 0.0019
2023-05-15 2023-03-31 13F ALKERMES PLC SHS Stock G01767105 14,475 1,073 8.01 408 16.57 0.0018
2023-02-15 2022-12-31 13F ALKERMES PLC SHS Stock G01767105 13,402 555 4.32 350 21.95 0.0018
2022-11-16 2022-09-30 13F ALKERMES PLC SHS Stock G01767105 12,847 12,075 1,564.12 287 1,147.83 0.0017
2022-08-23 2022-06-30 13F/A-1 ALKERMES PLC SHS Common Stock G01767105 772 -6,182 -88.90 23 -87.43 0.0001
2022-08-16 2022-06-30 13F ALKERMES PLC SHS COM G01767105 7,278 324 217 0.0016
2022-05-16 2022-03-31 13F ALKERMES SHS G01767105 6,954 6,443 1,260.86 183 1,425.00 0.0012
2022-02-14 2021-12-31 13F ALKERMES PLC SHS Common Stock G01767105 511 232 83.15 12 33.33 0.0001
2021-11-16 2021-09-30 13F ALKERMES PLC SHS Common Stock G01767105 279 3 1.09 9 28.57 0.0001
2021-08-16 2021-06-30 13F ALKERMES PLC SHS Common Stock G01767105 276 0 0.00 7 40.00 0.0001
2021-05-17 2021-03-31 13F ALKERMES PLC SHS Common Stock G01767105 276 -759 -73.33 5 -76.19 0.0001
2021-02-16 2020-12-31 13F ALKERMES PLC SHS Common Stock G01767105 1,035 -1,480 -58.85 21 -48.78 0.0003
2020-11-17 2020-09-30 13F ALKERMES PLC SHS Common Stock G01767105 2,515 -3,725 -59.70 41 -66.67 0.0007
2020-08-14 2020-06-30 13F ALKERMES PLC SHS Common Stock G01767105 6,240 6,240 123 0.0020
2020-02-14 2019-12-31 13F ALKERMES PLC SHS Common Stock G01767105 0 -6,240 -100.00 0 -100.00
2019-11-14 2019-09-30 13F ALKERMES PLC SHS Common Stock G01767105 6,240 0 0.00 122 -13.48 0.0043
2019-08-13 2019-06-30 13F ALKERMES PLC SHS Common Stock G01767105 6,240 0 0.00 141 -38.16 0.0052
2019-05-15 2019-03-31 13F ALKERMES PLC SHS Common Stock G01767105 6,240 0 0.00 228 23.91 0.0093
2019-02-13 2018-12-31 13F ALKERMES PLC SHS Common Stock G01767105 6,240 0 0.00 184 -30.57 0.0099
2018-11-15 2018-09-30 13F ALKERMES PLC SHS Common Stock G01767105 6,240 6,240 265 0.0119
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.