5 DAY PERFORMANCE
+7.94%
1 MONTH PERFORMANCE
-5.54%
3 MONTH PERFORMANCE
-26.35%
6 MONTH PERFORMANCE
-25.95%
YEAR-TO-DATE PERFORMANCE
-14.66%
1 YEAR PERFORMANCE
+35.47%
Alnylam Pharmaceuticals Inc Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 02/19/2026 | $332.24 | $339.37 (2.15%) | $339.60 | $326.33 | 1.08 M | |
| 02/18/2026 | $328.86 | $332.68 (1.16%) | $335.80 | $324.53 | 1.15 M | $43.99 B |
| 02/17/2026 | $316.80 | $332.61 (4.99%) | $336.21 | $315.63 | 1.52 M | $43.98 B |
| 02/13/2026 | $302.55 | $314.40 (3.92%) | $318.44 | $302.55 | 1.48 M | $41.57 B |
| 02/12/2026 | $314.42 | $308.48 (-1.89%) | $315.51 | $298.00 | 2.90 M | $40.79 B |
| 02/11/2026 | $322.14 | $322.28 (0.04%) | $325.04 | $317.80 | 1.58 M | $42.62 B |
| 02/10/2026 | $322.68 | $322.98 (0.09%) | $325.98 | $317.89 | 1.87 M | $42.71 B |
| 02/09/2026 | $325.49 | $320.00 (-1.69%) | $329.92 | $319.26 | 1.39 M | $42.31 B |
| 02/06/2026 | $331.61 | $328.16 (-1.04%) | $340.07 | $326.51 | 1.48 M | $43.14 B |
| 02/05/2026 | $350.50 | $331.24 (-5.5%) | $350.50 | $327.27 | 2.62 M | $43.54 B |
| 02/04/2026 | $354.00 | $351.96 (-0.58%) | $355.49 | $347.08 | 1.78 M | $46.26 B |
| 02/03/2026 | $338.49 | $351.80 (3.93%) | $352.82 | $337.59 | 2.15 M | $46.24 B |
| 02/02/2026 | $337.42 | $339.11 (0.5%) | $342.33 | $333.00 | 1.91 M | $44.57 B |
| 01/30/2026 | $343.10 | $338.06 (-1.47%) | $346.50 | $336.39 | 1.65 M | $44.44 B |
| 01/29/2026 | $349.37 | $346.79 (-0.74%) | $350.34 | $345.01 | 1.68 M | $45.58 B |
| 01/28/2026 | $353.66 | $349.58 (-1.15%) | $356.84 | $348.00 | 1.10 M | $45.95 B |
| 01/27/2026 | $361.55 | $354.75 (-1.88%) | $368.07 | $354.69 | 988.10 K | $46.63 B |
| 01/26/2026 | $357.98 | $361.35 (0.94%) | $364.07 | $352.50 | 936.40 K | $47.50 B |
| 01/23/2026 | $368.20 | $357.98 (-2.78%) | $371.33 | $356.72 | 1.64 M | $47.06 B |
| 01/22/2026 | $365.50 | $370.00 (1.23%) | $376.87 | $363.36 | 1.88 M | $48.64 B |
| 01/21/2026 | $353.01 | $365.46 (3.53%) | $366.00 | $351.55 | 1.52 M | $48.04 B |
| 01/20/2026 | $350.70 | $355.53 (1.38%) | $355.74 | $347.77 | 1.72 M | $46.73 B |
| 01/16/2026 | $362.29 | $359.27 (-0.83%) | $367.20 | $355.46 | 1.53 M | $47.22 B |
| 01/15/2026 | $368.54 | $359.26 (-2.52%) | $372.82 | $356.83 | 911.20 K | $47.22 B |
| 01/14/2026 | $369.95 | $366.86 (-0.84%) | $371.71 | $359.95 | 1.25 M | $48.22 B |
| 01/13/2026 | $369.10 | $369.96 (0.23%) | $376.88 | $366.92 | 1.63 M | $48.63 B |
| 01/12/2026 | $377.82 | $370.91 (-1.83%) | $378.61 | $353.52 | 3.81 M | $48.76 B |
| 01/09/2026 | $399.40 | $398.29 (-0.28%) | $409.58 | $392.56 | 1.44 M | $52.35 B |
| 01/08/2026 | $420.18 | $399.40 (-4.95%) | $425.19 | $393.48 | 1.40 M | $52.50 B |
| 01/07/2026 | $405.51 | $422.50 (4.19%) | $427.05 | $405.51 | 1.43 M | $55.54 B |
| 01/06/2026 | $396.23 | $406.40 (2.57%) | $409.18 | $384.42 | 1.61 M | $53.42 B |
| 01/05/2026 | $397.57 | $397.83 (0.07%) | $400.00 | $383.84 | 1.09 M | $52.29 B |
| 01/02/2026 | $399.34 | $400.17 (0.21%) | $407.22 | $396.08 | 730.52 K | $52.60 B |
| 12/31/2025 | $397.25 | $397.65 (0.1%) | $402.44 | $397.25 | 768.90 K | $52.27 B |
| 12/30/2025 | $394.81 | $397.25 (0.62%) | $398.40 | $393.64 | 504.80 K | $52.22 B |
| 12/29/2025 | $400.10 | $398.82 (-0.32%) | $402.72 | $397.05 | 638.40 K | $52.42 B |
| 12/26/2025 | $404.58 | $400.59 (-0.99%) | $404.58 | $397.31 | 401.50 K | $52.66 B |
| 12/24/2025 | $395.99 | $400.69 (1.19%) | $401.47 | $395.05 | 408.23 K | $52.67 B |
| 12/23/2025 | $404.72 | $398.70 (-1.49%) | $407.43 | $395.99 | 792.30 K | $52.41 B |
| 12/22/2025 | $409.60 | $407.73 (-0.46%) | $413.59 | $403.20 | 1.05 M | $53.59 B |
| 12/19/2025 | $399.11 | $400.23 (0.28%) | $408.15 | $395.97 | 12.58 M | $52.61 B |
| 12/18/2025 | $394.49 | $396.04 (0.39%) | $404.19 | $391.51 | 1.72 M | $52.06 B |
| 12/17/2025 | $394.18 | $392.10 (-0.53%) | $400.24 | $389.00 | 1.04 M | $51.54 B |
| 12/16/2025 | $390.65 | $391.17 (0.13%) | $399.64 | $388.54 | 1.35 M | $51.42 B |
| 12/15/2025 | $394.22 | $391.50 (-0.69%) | $402.33 | $390.00 | 1.48 M | $51.46 B |
| 12/12/2025 | $408.86 | $397.55 (-2.77%) | $410.04 | $387.03 | 1.66 M | $52.26 B |
| 12/11/2025 | $403.36 | $412.63 (2.3%) | $414.22 | $402.22 | 1.28 M | $54.24 B |
| 12/10/2025 | $416.54 | $404.46 (-2.9%) | $417.00 | $403.80 | 1.19 M | $53.17 B |
| 12/09/2025 | $430.45 | $415.21 (-3.54%) | $433.31 | $412.31 | 1.61 M | $54.58 B |
| 12/08/2025 | $447.00 | $430.02 (-3.8%) | $449.78 | $423.45 | 2.41 M | $56.52 B |
| 12/05/2025 | $468.29 | $458.12 (-2.17%) | $473.50 | $455.32 | 627.35 K | $60.22 B |
| 12/04/2025 | $472.67 | $465.34 (-1.55%) | $477.06 | $463.03 | 984.00 K | $61.17 B |
| 12/03/2025 | $466.49 | $473.29 (1.46%) | $479.79 | $460.41 | 1.09 M | $62.21 B |
| 12/02/2025 | $453.90 | $464.93 (2.43%) | $472.48 | $453.01 | 1.20 M | $61.11 B |
| 12/01/2025 | $450.00 | $454.56 (1.01%) | $462.93 | $448.27 | 1.07 M | $59.75 B |
| 11/28/2025 | $448.18 | $451.23 (0.68%) | $455.76 | $444.43 | 563.90 K | $59.31 B |
| 11/26/2025 | $432.87 | $445.12 (2.83%) | $447.69 | $430.27 | 908.20 K | $58.51 B |
| 11/25/2025 | $436.84 | $429.80 (-1.61%) | $441.82 | $428.57 | 1.01 M | $56.50 B |
| 11/24/2025 | $439.46 | $434.23 (-1.19%) | $444.67 | $420.30 | 1.75 M | $57.08 B |
| 11/21/2025 | $448.23 | $436.38 (-2.64%) | $449.53 | $433.50 | 1.30 M | $57.36 B |
| 11/20/2025 | $463.32 | $445.79 (-3.78%) | $467.73 | $445.34 | 787.66 K | $58.60 B |
| 11/19/2025 | $462.27 | $460.76 (-0.33%) | $465.32 | $456.90 | 893.89 K | $60.57 B |
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