Alkermes plc
DE ˙ DB ˙ IE00B56GVS15
36,95 € ↑0,49 (1,34%)
2026-06-05
DEL PRIS
SecurityDE:8AK / Alkermes plc
InstitutionSegall Bryant & Hamill, Llc
Latest Disclosed Ownership606,751 shares
Latest Disclosed Value $ 16,849,476
Segall Bryant & Hamill, Llc reports 1.39% decrease in ownership of 8AK / Alkermes plc

On May 15, 2026 - Segall Bryant & Hamill, Llc filed a 13F-HR form disclosing ownership of 606,751 shares of Alkermes plc (DE:8AK) valued at $15,775,526 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 615,292 shares of Alkermes plc. This represents a change in shares of -1.39% during the quarter. The current value of the position is $22,419,449 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 606,751 -8,541 -1.39 16,849 -2.13 0.2730
2026-02-13 2025-12-31 13F ALKERMES COM G01767105 615,292 18,813 3.15 17,216 -3.79 0.2330
2025-11-12 2025-09-30 13F ALKERMES COM G01767105 596,479 2,541 0.43 17,894 5.31 0.2384
2025-08-12 2025-06-30 13F ALKERMES COM G01767105 593,938 65,117 12.31 16,993 -2.69 0.2386
2025-05-02 2025-03-31 13F ALKERMES COM G01767105 528,821 -40,799 -7.16 17,462 6.59 0.2676
2025-02-11 2024-12-31 13F ALKERMES COM G01767105 569,620 -613,480 -51.85 16,382 -50.53 0.2254
2024-11-08 2024-09-30 13F ALKERMES COM G01767105 1,183,100 -37,835 -3.10 33,115 12.54 0.4515
2024-08-14 2024-06-30 13F ALKERMES COM G01767105 1,220,935 138,469 12.79 29,425 0.42 0.5217
2024-05-15 2024-03-31 13F ALKERMES COM G01767105 1,082,466 -17,787 -1.62 29,302 -3.99 0.5492
2024-02-14 2023-12-31 13F ALKERMES COM G01767105 1,100,253 109,084 11.01 30,521 9.94 0.5882
2023-11-09 2023-09-30 13F ALKERMES COM G01767105 991,169 8,552 0.87 27,763 -9.73 0.3212
2023-08-14 2023-06-30 13F ALKERMES COM G01767105 982,617 -5,970 -0.60 30,756 113,807.41 0.3218
2023-05-15 2023-03-31 13F ALKERMES COM G01767105 988,587 477,352 93.37 28 -99.80 0.3005
2023-02-14 2022-12-31 13F ALKERMES COM G01767105 511,235 65,568 14.71 13,358 34.22 0.1491
2022-11-14 2022-09-30 13F ALKERMES PLC F COM G01767105 445,667 14,606 3.39 9,952 -22.49 0.1185
2022-08-15 2022-06-30 13F ALKERMES COM G01767105 431,061 765 0.18 12,839 13.40 0.1445
2022-05-13 2022-03-31 13F ALKERMES COM G01767105 430,296 1,718 0.40 11,322 13.58 0.1083
2022-02-14 2021-12-31 13F ALKERMES COM G01767105 428,578 18,031 4.39 9,968 -21.28 0.0921
2021-12-30 2021-09-30 13F/A-1 ALKERMES COM G01767105 410,547 8,198 2.04 12,663 28.32 0.1211
2021-11-03 2021-09-30 13F ALKERMES COM G01767105 410,547 8,198 12,663 0.1225
2021-08-12 2021-06-30 13F ALKERMES COM G01767105 402,349 -444 -0.11 9,868 31.21 0.0957
2021-05-13 2021-03-31 13F ALKERMES COM G01767105 402,793 -841 -0.21 7,521 -6.57 0.0743
2021-02-12 2020-12-31 13F ALKERMES COM G01767105 403,634 42,573 11.79 8,050 34.55 0.0895
2020-11-13 2020-09-30 13F ALKERMES COM G01767105 361,061 142,129 64.92 5,983 40.71 0.0813
2020-08-14 2020-06-30 13F ALKERMES COM G01767105 218,932 75,901 53.07 4,252 106.11 0.0714
2020-05-14 2020-03-31 13F ALKERMES COM G01767105 143,031 143,031 2,063 0.0419
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.