D.E. Shaw & Co — ALNY Trade History
Quarter-by-quarter changes in the ALNYLAM PHARMACEUTICALS INC position · CUSIP 02043Q107
Currently held · 2 YearsFirst seen: 2016 Q3
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-08-14 | Add | 1,104,109 | 45,047 | +4.3% | $332.4M | 0.16% |
| 2026 Q1 | 2026-05-15 | Add | 1,059,062 | 614,569 | +138.3% | $350.4M | 0.21% |
| 2025 Q4 | 2026-02-17 | Add | 444,493 | 245,076 | +122.9% | $176.8M | 0.10% |
| 2025 Q3 | 2025-11-14 | Add | 199,417 | 91,141 | +84.2% | $90.9M | 0.05% |
| 2025 Q2 | 2025-08-14 | Reduce | 108,276 | -181,586 | -62.6% | $35.3M | 0.03% |
| 2025 Q1 | 2025-05-15 | Reduce | 289,862 | -73,223 | -20.2% | $78.3M | 0.07% |
| 2024 Q4 | 2025-02-14 | Add | 363,085 | 30,780 | +9.3% | $85.4M | 0.06% |
| 2024 Q3 | 2024-11-14 | New | 332,305 | 332,305 | — | $91.4M | 0.08% |
| 2024 Q1 | 2024-11-14 | — | — | — | — | — | — |
| 2023 Q4 | 2024-11-14 | Sold out | — | -279,398 | -100.0% | — | — |
| 2024 Q2 | 2024-08-14 | Add | 279,398 | 75,306 | +36.9% | $67.9M | 0.06% |
| 2023 Q3 | 2023-11-14 | Reduce | 204,092 | -44,180 | -17.8% | $36.1M | 0.04% |
| 2023 Q2 | 2023-08-14 | Add | 248,272 | 16,927 | +7.3% | $47.2M | 0.05% |
| 2023 Q1 | 2023-05-15 | Add | 231,345 | 54,929 | +31.1% | $46.3M | 0.05% |
| 2022 Q4 | 2023-02-14 | Add | 176,416 | 25,272 | +16.7% | $41.9M | 0.05% |
| 2022 Q3 | 2022-11-14 | Add | 151,144 | 15,221 | +11.2% | $30.3M | 0.04% |
| 2022 Q2 | 2022-08-15 | Add | 135,923 | 121,040 | +813.3% | $19.8M | 0.02% |
| 2022 Q1 | 2022-05-16 | Reduce | 14,883 | -31,457 | -67.9% | $2.4M | 0.00% |
| 2021 Q4 | 2022-02-14 | Add | 46,340 | 13,277 | +40.2% | $7.9M | 0.01% |
| 2021 Q3 | 2021-11-15 | Reduce | 33,063 | -3,345 | -9.2% | $6.2M | 0.01% |
| 2021 Q2 | 2021-08-16 | Reduce | 36,408 | -41,495 | -53.3% | $6.2M | 0.01% |
| 2021 Q1 | 2021-05-17 | Add | 77,903 | 13,402 | +20.8% | $11.0M | 0.01% |
| 2020 Q4 | 2021-02-16 | Reduce | 64,501 | -105,737 | -62.1% | $8.4M | 0.01% |
| 2020 Q3 | 2020-11-16 | Add | 170,238 | 56,351 | +49.5% | $24.8M | 0.03% |
| 2020 Q2 | 2020-08-14 | Reduce | 113,887 | -116,666 | -50.6% | $16.9M | 0.02% |
| 2020 Q1 | 2020-05-15 | Add | 230,553 | 211,925 | +1137.7% | $25.1M | 0.04% |
| 2019 Q4 | 2020-02-14 | Reduce | 18,628 | -8,169 | -30.5% | $2.1M | 0.00% |
| 2019 Q3 | 2019-11-14 | Add | 26,797 | 13,040 | +94.8% | $2.2M | 0.00% |
| 2019 Q2 | 2019-08-14 | Add | 13,757 | 2,543 | +22.7% | $998.0K | 0.00% |
| 2019 Q1 | 2019-05-15 | Reduce | 11,214 | -25,604 | -69.5% | $1.0M | 0.00% |
| 2018 Q4 | 2019-02-14 | Add | 36,818 | 28,080 | +321.4% | $2.7M | 0.00% |
| 2018 Q3 | 2018-11-14 | Reduce | 8,738 | -74,873 | -89.5% | $765.0K | 0.00% |
| 2018 Q2 | 2018-08-14 | Reduce | 83,611 | -187,450 | -69.2% | $8.2M | 0.01% |
| 2018 Q1 | 2018-05-15 | Reduce | 271,061 | -1,659 | -0.6% | $32.3M | 0.04% |
| 2017 Q4 | 2018-02-14 | Reduce | 272,720 | -709,734 | -72.2% | $34.6M | 0.05% |
| 2017 Q3 | 2017-11-14 | Add | 982,454 | 248,804 | +33.9% | $115.4M | 0.18% |
| 2017 Q2 | 2017-08-14 | Add | 733,650 | 238,256 | +48.1% | $58.5M | 0.10% |
| 2017 Q1 | 2017-05-15 | Add | 495,394 | 279,968 | +130.0% | $25.4M | 0.04% |
| 2016 Q4 | 2017-02-14 | Add | 215,426 | 190,304 | +757.5% | $8.1M | 0.01% |
| 2016 Q3 | 2016-11-14 | New | 25,122 | 25,122 | — | $1.7M | 0.00% |
Share counts are split-adjusted. Time held counts consecutive quarters ending with the latest filing; more than ten years shows as ">10 Years".
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.