Alnylam Pharmaceuticals, Inc.
DE ˙ XTRA ˙ US02043Q1076
251,80 € ↑6,70 (2,73%)
2026-06-03
DEL PRIS
SecurityDE:DUL / Alnylam Pharmaceuticals, Inc.
InstitutionBokf, Na
Latest Disclosed Ownership342 shares
Latest Disclosed Value $ 113,158
Bokf, Na ownership in DUL / Alnylam Pharmaceuticals, Inc.

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 342 shares of Alnylam Pharmaceuticals, Inc. (DE:DUL) valued at $97,709 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 12, 2025 disclosing 0 shares of Alnylam Pharmaceuticals, Inc.. The current value of the position is $86,116 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)
2026-05-08 2026-03-31 13F ALNYLAM PHARMACEUTICALS common 02043Q107 342 342 113 0.0013
2025-08-12 2025-06-30 13F ALNYLAM PHARMACEUTICALS common 02043Q107 0 -52 -100.00 0 -100.00
2025-05-13 2025-03-31 13F ALNYLAM PHARMACEUTICALS common 02043Q107 52 -329 -86.35 14 -84.44 0.0002
2025-02-14 2024-12-31 13F ALNYLAM PHARMACEUTICALS common 02043Q107 381 326 592.73 91 542.86 0.0015
2024-11-14 2024-09-30 13F ALNYLAM PHARMACEUTICALS common 02043Q107 55 -5,696 -99.04 15 -99.00 0.0003
2024-08-08 2024-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 5,751 -961 -14.32 1,397 35.76 0.0251
2024-05-15 2024-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 6,712 1,295 23.91 1,029 -0.68 0.0187
2024-02-14 2023-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 5,417 -1,305 -19.41 1,037 1.57 0.0203
2023-11-14 2023-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 6,722 1,706 34.01 1,020 7.14 0.0225
2023-08-21 2023-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 5,016 -149 -2.88 953 -7.93 0.0194
2023-05-11 2023-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 5,165 -492 -8.70 1,035 -23.07 0.0217
2023-02-13 2022-12-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 5,657 -2,350 -29.35 1,344 -16.16 0.0248
2022-11-14 2022-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 8,007 -875 -9.85 1,603 23.69 0.0324
2022-08-11 2022-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 8,882 8,882 1,296 0.0248
2020-10-30 2020-09-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 0 -6,094 -100.00 0 -100.00
2020-08-12 2020-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 6,094 6,094 903 0.0212
2015-08-13 2015-06-30 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 0 -12,051 -100.00 0 -100.00
2015-05-14 2015-03-31 13F ALNYLAM PHARMACEUTICALS COM 02043Q107 12,051 12,051 1,258 0.0423
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.