Alnylam Pharmaceuticals, Inc.
DE ˙ XTRA ˙ US02043Q1076
251,80 € ↑6,70 (2,73%)
2026-06-03
DEL PRIS
SecurityDE:DUL / Alnylam Pharmaceuticals, Inc.
InstitutionIFP Advisors, Inc
Latest Disclosed Ownership482 shares
Latest Disclosed Value $ 159,479
IFP Advisors, Inc reports 27.41% decrease in ownership of DUL / Alnylam Pharmaceuticals, Inc.

On April 13, 2026 - IFP Advisors, Inc filed a 13F-HR form disclosing ownership of 482 shares of Alnylam Pharmaceuticals, Inc. (DE:DUL) valued at $137,707 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 664 shares of Alnylam Pharmaceuticals, Inc.. This represents a change in shares of -27.41% during the quarter. The current value of the position is $121,368 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)
2026-04-13 2026-03-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 482 -182 -27.41 159 -39.77 0.0033
2026-02-06 2025-12-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 664 173 35.23 264 18.39 0.0059
2026-02-06 2025-09-30 13F/A-1 ALNYLAM PHARMACEUTICALS cs 02043Q107 491 291 145.50 224 175.31 0.0058
2025-12-02 2025-09-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 491 291 224 0.0058
2025-07-24 2025-06-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 200 -32 -13.79 82 30.65 0.0023
2025-05-05 2025-03-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 232 -9 -3.73 63 10.71 0.0019
2025-02-04 2024-12-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 241 47 24.23 57 5.66 0.0019
2025-02-04 2024-09-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 194 145 295.92 54 381.82 0.0019
2024-07-30 2024-06-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 49 -421 -89.57 12 -84.29 0.0005
2024-07-30 2024-03-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 470 14 3.07 70 -19.54 0.0031
2024-01-09 2023-12-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 456 2 0.44 87 8.75 0.0041
2023-10-12 2023-09-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 454 1 0.22 80 -6.98 0.0036
2023-08-14 2023-06-30 13F/A-1 ALNYLAM PHARMACEUTICALS cs 02043Q107 453 -3 -0.66 86 91.11 0.0036
2023-08-04 2023-06-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 453 -3 46 0.0021
2023-04-18 2023-03-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 456 -203 -30.80 46 0.0020
2023-02-07 2022-12-31 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 659 -224 -25.37 0 -100.00 0.0021
2022-11-08 2022-09-30 13F ALNYLAM PHARMACEUTICALS cs 02043Q107 883 143 19.32 109 17.20 0.0028
2022-09-06 2022-06-30 13F/A-1 ALNYLAM PHARMACEUTICALS cs 02043Q107 740 0 0.00 93 0.00 0.0030
2022-09-06 2022-03-31 13F/A-1 ALNYLAM PHARMACEUTICALS cs 02043Q107 740 363 96.29 93 27.40 0.0030
2022-08-08 2022-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 526 149 66 0.0013
2022-01-12 2021-12-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 377 7 1.89 73 -5.19 0.0014
2021-10-06 2021-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 370 15 4.23 77 28.33 0.0015
2021-07-13 2021-06-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 355 320 914.29 60 1,100.00 0.0012
2021-04-30 2021-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 35 23 191.67 5 400.00 0.0001
2021-01-25 2020-12-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 12 -1 -7.69 1 0.00 0.0000
2020-10-29 2020-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 13 4 44.44 1 0.00 0.0001
2020-08-05 2020-06-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 9 0 0.00 1 0.00 0.0001
2020-05-12 2020-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 9 0 0.00 1 0.00 0.0001
2020-01-17 2019-12-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 9 0 0.00 1 0.00 0.0001
2019-11-07 2019-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 9 9 1 0.0001
2019-05-15 2019-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 0 -200 -100.00 0 -100.00
2019-06-03 2018-12-31 13F/A-10 ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 200 -361 -64.35 14 -71.43 0.0009
2019-01-23 2018-12-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 200 -361 14 0.0009
2019-06-03 2018-09-30 13F/A-9 ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 561 100 21.69 49 8.89 0.0020
2018-10-25 2018-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 561 100 49 0.0020
2019-06-03 2018-06-30 13F/A-8 ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 461 276 149.19 45 104.55 0.0019
2018-08-07 2018-06-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 461 276 45
2018-05-09 2018-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 185 185 22 0.0010
2019-06-03 2017-12-31 13F/A-6 ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 0 -107 -100.00 0 -100.00
2017-10-30 2017-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 107 107 13 0.0005
2016-11-04 2016-09-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 0 -220 -100.00 0 -100.00
2019-06-03 2016-06-30 13F/A-2 ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 220 0 0.00 12 -14.29 0.0007
2016-08-22 2016-06-30 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 220 0 12
2016-05-02 2016-03-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 220 -58 -20.86 14 -46.15 0.0008
2016-02-11 2015-12-31 13F ALNYLAM PHARMACEUTICALS INC COM Stock 02043Q107 278 278 26 0.0017
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.