As of 31 Dec 2025, 0 institutional investors reported holding shares of ALNYLAM PHARMACEUTICALS INC - COM - Call.
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | $397.65 | 0 | |||
| 2025 Q3 | $456.00 | 0 | |||
| 2025 Q2 | $326.09 | 0 | |||
| 2025 Q1 | $270.02 | 0 | |||
| 2024 Q4 | $235.31 | 0 | |||
| 2024 Q3 | $275.03 | 0 | |||
| 2024 Q2 | $243.00 | 0 | |||
| 2024 Q1 | $149.45 | 0 | |||
| 2023 Q4 | $191.41 | 0 | |||
| 2023 Q3 | $177.10 | 0 | |||
| 2023 Q2 | $189.94 | 0 | |||
| 2023 Q1 | $200.31 | 0 | |||
| 2022 Q4 | $237.65 | 0 | |||
| 2022 Q3 | $200.16 | 0 | |||
| 2022 Q2 | $145.85 | 0 | |||
| 2022 Q1 | $163.26 | 0 | |||
| 2021 Q4 | $169.57 | 0 | |||
| 2021 Q3 | $179.27 | 0 | |||
| 2021 Q2 | $169.51 | 0 | |||
| 2021 Q1 | $7126.19 | 0 | |||
| 2020 Q4 | $130.00 | 0 | |||
| 2020 Q3 | $145.67 | 0 | |||
| 2020 Q2 | $148.12 | 0 | |||
| 2020 Q1 | $5496.36 | 0 | |||
| 2019 Q4 | $115.17 | 0 | |||
| 2019 Q3 | $8040.78 | 0 | |||
| 2019 Q2 | $72.54 | 0 | |||
| 2019 Q1 | $4718.67 | 0 | |||
| 2018 Q4 | $3681.51 | 0 | |||
| 2018 Q3 | $4417.68 | 0 | |||
| 2018 Q2 | $98.49 | 0 | |||
| 2018 Q1 | $119.11 | 0 | |||
| 2017 Q4 | $2308.51 | 0 | |||
| 2017 Q3 | $7230.48 | 0 | |||
| 2017 Q2 | $937.13 | 0 | |||
| 2017 Q1 | $697.67 | 0 | |||
| 2016 Q4 | 0 | $0 | -$3,118,000 | $37.48 | 0 |
| 2016 Q3 | 46,000 | $3,118,000 | +$3,118,000 | $67.78 | 1 |
| 2016 Q2 | $55.49 | 0 | |||
| 2016 Q1 | $62.78 | 0 | |||
| 2015 Q4 | $94.16 | 0 | |||
| 2015 Q3 | $80.39 | 0 | |||
| 2015 Q2 | $119.89 | 0 | |||
| 2015 Q1 | $104.50 | 0 | |||
| 2014 Q4 | $97.00 | 0 | |||
| 2014 Q3 | $78.11 | 0 | |||
| 2014 Q2 | $63.15 | 0 | |||
| 2014 Q1 | $67.17 | 0 |