Alnylam Pharmaceuticals, Inc.
DE ˙ XTRA ˙ US02043Q1076
260,50 € ↑8,70 (3,46%)
2026-06-04
AKTIENPREIS
SecurityDE:DUL / Alnylam Pharmaceuticals, Inc.
InstitutionSwedbank AB
Latest Disclosed Ownership62,215 shares
Latest Disclosed Value $ 20,585,076
Swedbank AB reports 0.44% increase in ownership of DUL / Alnylam Pharmaceuticals, Inc.

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 62,215 shares of Alnylam Pharmaceuticals, Inc. (DE:DUL) valued at $17,774,826 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 61,942 shares of Alnylam Pharmaceuticals, Inc.. This represents a change in shares of 0.44% during the quarter. The current value of the position is $16,207,008 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)
2026-04-29 2026-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 62,215 273 0.44 20,585 -16.43 0.0122
2026-02-09 2025-12-31 13F/A-1 ALNYLAM PHARMACEUTICALS COM 02043Q107 61,942 -1,636 -2.57 24,631 -15.04 0.0238
2026-02-03 2025-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 61,942 -1,636 24,631 0.0134
2025-10-15 2025-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 63,578 -737 -1.15 28,992 38.24 0.0294
2025-07-10 2025-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 64,315 4,322 7.20 20,972 29.46 0.0236
2025-04-14 2025-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 59,993 4,461 8.03 16,199 23.97 0.0216
2025-01-22 2024-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 55,532 1,803 3.36 13,067 -11.57 0.0161
2024-10-11 2024-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 53,729 33,090 160.33 14,777 194.66 0.0189
2024-07-11 2024-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 20,639 0 0.00 5,015 62.61 0.0067
2024-05-15 2024-03-31 13F/A-1 ALNYLAM PHARM COM 02043Q107 20,639 -200,000 -90.65 3,084 -92.70 0.0269
2024-12-06 2023-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 220,639 0 0.00 42,233 8.08 0.0680
2024-12-06 2023-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 220,639 -113,303 -33.93 39,075 -38.39 0.0677
2024-12-06 2023-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 333,942 0 0.00 63,429 -5.18 0.1075
2024-12-06 2023-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 333,942 -92,711 -21.73 66,895 -34.02 0.1319
2024-12-06 2022-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 426,653 10,593 2.55 101,394 21.75 0.2230
2024-12-06 2022-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 416,060 -23,152 -5.27 83,279 30.00 0.1977
2024-12-06 2022-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 439,212 856 0.20 64,059 -10.51 0.1446
2024-12-06 2022-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 438,356 1,791 0.41 71,579 -4.13 0.1327
2024-12-06 2021-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 436,565 67 0.02 74,666 -9.40 0.1248
2024-12-06 2021-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 436,498 90,986 26.33 82,415 40.71 0.1539
2024-12-06 2021-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 345,512 5,193 1.53 58,571 21.90 0.1099
2024-12-06 2021-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 340,319 340,319 48,050 0.0998
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.