Institutional Ownership
Alnylam Pharmaceuticals Inc
CUSIP 02043Q107COMALNYQ1 2026
Shares Short
5.77M
As of Jul 15, 2026
Days to Cover
3.24
Short shares ÷ avg daily volume
Change vs Prior
-0.5%
vs previous settlement
Avg Daily Volume
1.78M
FINRA reported ADV
Short Interest History
17 settlements on record · FINRA consolidated
Higher short interest is bearish: increases show red, decreases green.
| Settlement | Shares Short | Prior | Change | Avg Daily Vol | Days to Cover |
|---|---|---|---|---|---|
| Jul 15, 2026 | 5.77M | 5.80M | -0.5% | 1.78M | 3.24 |
| Jun 30, 2026 | 5.80M | 5.44M | +6.7% | 1.37M | 4.22 |
| Jun 15, 2026 | 5.44M | 5.30M | +2.6% | 1.14M | 4.76 |
| May 29, 2026 | 5.30M | 5.40M | -1.8% | 917.6K | 5.78 |
| May 15, 2026 | 5.40M | 4.77M | +13.1% | 1.05M | 5.13 |
| Apr 30, 2026 | 4.77M | 5.03M | -5.2% | 1.19M | 4.02 |
| Apr 15, 2026 | 5.03M | 5.06M | -0.4% | 984.0K | 5.12 |
| Mar 31, 2026 | 5.06M | 4.37M | +15.7% | 1.26M | 4.01 |
| Mar 13, 2026 | 4.37M | 4.57M | -4.4% | 1.05M | 4.18 |
| Feb 27, 2026 | 4.57M | 5.24M | -12.8% | 1.03M | 4.46 |
| Feb 13, 2026 | 5.24M | 5.28M | -0.7% | 1.87M | 2.80 |
| Jan 30, 2026 | 5.28M | 5.57M | -5.1% | 1.44M | 3.66 |