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JANUS HENDERSON GROUP PLC

Position in ALNY — Alnylam Pharmaceuticals, Inc.

CIK 1274173 LONDON, X0

Position in ALNY

as of Mar 31, 2026 · filed May 18, 2026
Position Value
$48,667,337
-$5,582,064 QoQ
Shares Held
147,089
+7.8% QoQ
Ownership
0.110%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 0% Shared 91% None 9%

Common Shares in ALNY Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $15,214,395,751 across 183 Biotechnology names. ALNY ranks #51 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALNY

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $48,667,337 147,089
2025-12-31 $54,249,401 136,425
2025-09-30 $61,949,880 135,855
2025-06-30 $49,050,783 150,421
2025-03-31 $49,048,861 181,649
2024-12-31 $49,433,923 210,080
2024-09-30 $60,324,253 219,337
2024-06-30 $60,613,920 249,440
2024-03-31 $26,744,674 178,954
2023-12-31 $53,227,483 278,081
2023-09-30 $51,977,078 293,490
2023-06-30 $55,431,898 291,839
2023-03-31 $59,864,228 298,843
2022-12-31 $110,599,457 465,388
2022-09-30 $114,992,719 574,504
2022-06-30 $65,590,640 449,713
2022-03-31 $97,720,572 598,448
2021-12-31 $85,016,050 501,333
2021-09-30 $4,073,953 21,577
2021-06-30 $1,987,622 11,725
2021-03-31 $2,567,257 18,183
2020-12-31 $11,730,442 90,255
2020-09-30 $23,670,046 162,569
2020-06-30 $33,126,430 223,661
2020-03-31 $44,351,694 407,457