Two Sigma Advisers, LP’s Alnylam Pharmaceuticals Inc Position
Does Two Sigma Advisers, LP own Alnylam Pharmaceuticals Inc (ALNY)? Not currently — the last reported position was 1.13M shares worth $450M in Q4 2025; the fund’s latest 13F (Q1 2026) no longer reports it.
Position Value
$450M
Q4 2025
Shares
1.13M
% of Portfolio
+0.88%
Quarters Held
21
position exited
Position History ALNY
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q4 2025 | 1.13M | $450M | +0.88% |
| Q3 2025 | 892.5K | $407M | +0.81% |
| Q2 2025 | 266.1K | $87M | +0.18% |
| Q1 2025 | 275.8K | $74M | +0.17% |
| Q4 2024 | 78.8K | $19M | +0.04% |
| Q3 2024 | 103.1K | $28M | +0.07% |
| Q2 2024 | 258.7K | $63M | +0.14% |
| Q1 2024 | 189.6K | $28M | +0.07% |
| Q3 2023 | 35.9K | $6M | +0.02% |
| Q2 2023 | 193.6K | $37M | +0.09% |
| Q1 2023 | 155.1K | $31M | +0.08% |
| Q4 2022 | 120.0K | $29M | +0.08% |
| Q3 2022 | 63.8K | $13M | +0.04% |
| Q2 2022 | 12.4K | $2M | +0.01% |
| Q1 2022 | 46.7K | $8M | +0.02% |
| Q4 2021 | 3.8K | $644,000 | 0.00% |
| Q1 2021 | 31.9K | $5M | +0.01% |
| Q4 2020 | 3.7K | $481,000 | 0.00% |
| Q2 2020 | 8.3K | $1M | 0.00% |
| Q1 2019 | 70.8K | $7M | +0.02% |
| Q4 2018 | 117.1K | $9M | +0.02% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Two Sigma Advisers, LP’s full portfolio or all institutional holders of ALNY.