Alnylam Pharmaceuticals, Inc.

BAILLIE GIFFORD & CO ALNY

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/23/2026

Shares

2,600,979

Value ($000)

1,034,279

Weight

0.9%

2013 Q4 - 2025 Q4 (28 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	1/23/2026	1,034,279	0.9%	2,600,979	12/31/2025
2025 Q3	10/31/2025	1,271,946	0.9%	2,789,356	9/30/2025
2025 Q2	8/6/2025	988,669	0.7%	3,031,891	6/30/2025
2025 Q1	5/7/2025	987,627	0.9%	3,657,607	3/31/2025
2024 Q4	1/31/2025	950,713	0.7%	4,040,259	12/31/2024
2024 Q3	11/5/2024	1,344,072	1.0%	4,887,000	9/30/2024
2024 Q2	7/25/2024	1,465,935	1.1%	6,032,656	6/30/2024
2024 Q1	5/1/2024	989,894	0.8%	6,623,577	3/31/2024
2023 Q4	1/26/2024	1,333,572	1.1%	6,967,097	12/31/2023
2023 Q3	11/13/2023	1,445,692	1.3%	8,163,139	9/30/2023
2023 Q2	7/28/2023	1,594,018	1.4%	8,392,216	6/30/2023
2023 Q1	5/3/2023	1,730,593	1.6%	8,639,141	3/31/2023
2022 Q4	3/10/2023	2,235,781	2.3%	9,407,871	12/31/2022
2022 Q3	10/27/2022	1,904,474	2.0%	9,514,758	9/30/2022
2022 Q2	8/8/2022	1,453,896	1.5%	9,968,434	6/30/2022
2022 Q1	5/5/2022	1,655,716	1.2%	10,139,729	3/31/2022
2021 Q4	1/20/2022	1,800,388	1.0%	10,616,751	12/31/2021
2021 Q3	10/19/2021	1,966,605	1.0%	10,415,784	9/30/2021
2021 Q2	8/2/2021	1,733,319	0.8%	10,224,859	6/30/2021
2021 Q1	5/6/2021	1,422,484	0.8%	10,074,963	3/31/2021
2020 Q4	2/10/2021	1,186,941	0.7%	9,132,422	12/31/2020
2020 Q3	11/12/2020	1,294,600	0.9%	8,891,488	9/30/2020
2020 Q2	8/12/2020	1,280,956	1.0%	8,648,678	6/30/2020
2020 Q1	5/8/2020	915,621	1.0%	8,411,769	3/31/2020
2019 Q4	2/10/2020	942,865	0.9%	8,186,723	12/31/2019
2014 Q2	8/1/2014	75,231	0.2%	1,190,930	6/30/2014
2014 Q1	5/1/2014	72,027	0.2%	1,072,800	3/31/2014
2013 Q4	2/7/2014	57,453	0.1%	893,100	12/31/2013