Alnylam Pharmaceuticals (alny 1 09/15/27)

13F holders, Q2 2024 (June 30)
10holders +2
3new positions
1sold out
$5.61avg. 13F price*

At the end of Q2 2024, 10 institutions reported holding Alnylam Pharmaceuticals (alny 1 09/15/27) in their 13F filings, up 2 from Q1 2024. 3 opened new positions and 1 sold out. The largest holders were Palo Alto Investors LP ($44.5M), Nomura Holdings Inc. ($16.4M) and BNP PARIBAS ASSET MANAGEMENT Holding S.A. ($5.4M).

Company
Alnylam Pharmaceuticals (alny 1 09/15/27)
CUSIP
02043QAB3
Latest filing quarter
Q2 2026

History

Number of 13F holders

051015 Q1 2024: 8Q1 2024Q2 2024: 10Q2 2024Q3 2024: 8Q3 2024Q4 2024: 9Q4 2024Q1 2025: 7Q1 2025Q2 2025: 6Q2 2025Q3 2025: 7Q3 2025Q4 2025: 11Q4 2025Q1 2026: 9Q1 2026Q2 2026: 5Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions3$47.2M
Exits1$33.4M

All 13F filers, Q1 2024 → Q2 2024: 2,703,123 shares bought and 37,312,000 shares sold, net −34,608,877 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 10 holders

Palo Alto Investors LP 5.16% New 183,123 $44.5M
Nomura Holdings Inc. 0.11% No change 67,606 $16.4M
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.01% No change 4,950,000 $5.4M
New York State Common Retirement Fund 0.01% Reduce -29.6% 3,706,000 $4.0M
Ghisallo Capital Management LLC 0.24% New 2,500,000 $2.7M
Liberty Mutual Group Asset Management Inc. 0.20% Reduce -16.7% 1,270,000 $1.4M
Bank of New York Mellon Corp 0.00% No change 600,000 $647K
Sei Investments Co. 0.00% No change 99,000 $107K
Choreo, LLC 0.00% New 20,000 $22K
EverSource Wealth Advisors, LLC 0.00% No change 3,000 $3K

"% of holder's portfolio" is ALNYLAM PHARMACEUTICALS (ALNY 1 09/15/27)'s weight in each manager's 13F, not the share of Alnylam Pharmaceuticals (alny 1 09/15/27) the manager owns.