Alnylam Pharmaceuticals, Inc.

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP ALNY

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

1,127,162

Value ($000)

448,216

Weight

0.3%

2019 Q4 - 2025 Q4 (9 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/13/2026	448,216	0.3%	1,127,162	12/31/2025
2025 Q3	11/13/2025	618,158	0.4%	1,355,609	9/30/2025
2025 Q2	8/13/2025	55,337	0.0%	169,700	6/30/2025
2025 Q1	5/14/2025	1,095	0.0%	4,055	3/31/2025
2024 Q2	8/14/2024	3,638	0.0%	14,971	6/30/2024
2020 Q4	2/12/2021	7,967	0.0%	61,300	12/31/2020
2020 Q3	11/12/2020	541	0.0%	3,717	9/30/2020
2020 Q2	8/12/2020	326	0.0%	2,200	6/30/2020
2019 Q4	2/13/2020	380	0.0%	3,300	12/31/2019