5 DAY PERFORMANCE
+33.38%
1 MONTH PERFORMANCE
+19.07%
3 MONTH PERFORMANCE
+8.79%
6 MONTH PERFORMANCE
-2.78%
YEAR-TO-DATE PERFORMANCE
-18.62%
1 YEAR PERFORMANCE
-28.78%
Alnylam Pharmaceuticals Inc Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 08/21/2026 | $228.88 | $236.22 (3.21%) | $238.97 | $228.34 | 1.91 M | $31.47 B |
| 08/20/2026 | $239.00 | $229.30 (-4.06%) | $240.88 | $228.74 | 1.70 M | $30.55 B |
| 08/19/2026 | $234.36 | $242.61 (3.52%) | $244.03 | $233.40 | 1.88 M | $32.33 B |
| 08/18/2026 | $226.27 | $228.61 (1.03%) | $230.91 | $222.01 | 1.60 M | $30.46 B |
| 08/17/2026 | $225.76 | $224.60 (-0.51%) | $227.99 | $222.12 | 1.54 M | $29.93 B |
| 08/14/2026 | $223.52 | $228.65 (2.3%) | $228.98 | $220.23 | 1.53 M | $30.47 B |
| 08/13/2026 | $225.95 | $227.12 (0.52%) | $227.54 | $222.70 | 1.45 M | $30.26 B |
| 08/12/2026 | $219.00 | $223.95 (2.26%) | $224.66 | $219.00 | 1.62 M | $29.84 B |
| 08/11/2026 | $217.41 | $221.20 (1.74%) | $223.44 | $216.50 | 1.44 M | $29.47 B |
| 08/10/2026 | $218.00 | $216.98 (-0.47%) | $223.50 | $215.61 | 1.40 M | $28.91 B |
| 08/07/2026 | $217.31 | $219.20 (0.87%) | $219.64 | $210.49 | 1.74 M | $29.21 B |
| 08/06/2026 | $228.58 | $216.12 (-5.45%) | $234.00 | $212.98 | 2.27 M | $28.80 B |
| 08/05/2026 | $221.74 | $228.72 (3.15%) | $229.65 | $221.50 | 2.73 M | $30.48 B |
| 08/04/2026 | $220.33 | $219.00 (-0.6%) | $222.59 | $215.07 | 3.11 M | $29.18 B |
| 08/03/2026 | $208.04 | $220.33 (5.91%) | $220.49 | $208.04 | 3.40 M | $29.36 B |
| 07/31/2026 | $205.46 | $205.52 (0.03%) | $207.99 | $200.11 | 4.48 M | $27.38 B |
| 07/30/2026 | $225.02 | $205.48 (-8.68%) | $230.00 | $197.81 | 9.84 M | $27.38 B |
| 07/29/2026 | $288.09 | $286.62 (-0.51%) | $290.60 | $284.15 | 1.30 M | $38.19 B |
| 07/28/2026 | $282.79 | $288.41 (1.99%) | $290.47 | $281.23 | 1.44 M | $38.43 B |
| 07/27/2026 | $272.66 | $278.40 (2.11%) | $284.68 | $272.66 | 1.41 M | $37.10 B |
| 07/24/2026 | $268.74 | $271.77 (1.13%) | $275.58 | $265.64 | 1.15 M | $36.12 B |
| 07/23/2026 | $265.95 | $268.74 (1.05%) | $269.22 | $262.21 | 1.14 M | $35.71 B |
| 07/22/2026 | $270.84 | $266.99 (-1.42%) | $273.71 | $264.21 | 1.10 M | $35.48 B |
| 07/21/2026 | $272.40 | $271.37 (-0.38%) | $278.30 | $270.01 | 982.81 K | $36.06 B |
| 07/20/2026 | $267.55 | $272.67 (1.91%) | $275.25 | $266.27 | 1.36 M | $36.24 B |
| 07/17/2026 | $280.99 | $267.47 (-4.81%) | $284.36 | $266.43 | 1.38 M | $35.54 B |
| 07/16/2026 | $279.65 | $283.15 (1.25%) | $286.60 | $273.78 | 1.44 M | $37.63 B |
| 07/15/2026 | $281.70 | $279.14 (-0.91%) | $284.80 | $275.84 | 1.28 M | $37.10 B |
| 07/14/2026 | $283.55 | $281.26 (-0.81%) | $286.76 | $279.43 | 1.09 M | $37.38 B |
| 07/13/2026 | $298.01 | $288.06 (-3.34%) | $298.76 | $279.41 | 2.68 M | $38.28 B |
| 07/10/2026 | $314.71 | $298.76 (-5.07%) | $322.49 | $293.78 | 2.54 M | $39.70 B |
| 07/09/2026 | $378.49 | $312.79 (-17.36%) | $380.00 | $311.10 | 5.87 M | $41.57 B |
| 07/08/2026 | $318.50 | $323.50 (1.57%) | $325.37 | $316.77 | 897.70 K | $42.99 B |
| 07/07/2026 | $317.07 | $321.59 (1.43%) | $321.98 | $315.35 | 980.50 K | $42.74 B |
| 07/06/2026 | $319.34 | $313.04 (-1.97%) | $319.34 | $307.13 | 891.87 K | $41.60 B |
| 07/02/2026 | $303.87 | $312.78 (2.93%) | $317.17 | $303.00 | 1.09 M | $41.57 B |
| 07/01/2026 | $304.54 | $301.67 (-0.94%) | $309.27 | $301.50 | 1.07 M | $40.09 B |
| 06/30/2026 | $296.82 | $301.03 (1.42%) | $302.74 | $295.18 | 1.41 M | $40.00 B |
| 06/29/2026 | $296.97 | $293.52 (-1.16%) | $298.27 | $291.90 | 1.37 M | $39.01 B |
| 06/26/2026 | $297.57 | $291.37 (-2.08%) | $302.96 | $290.37 | 1.49 M | $38.72 B |
| 06/25/2026 | $293.68 | $293.17 (-0.17%) | $298.35 | $290.07 | 1.13 M | $38.96 B |
| 06/24/2026 | $290.95 | $294.06 (1.07%) | $303.46 | $288.85 | 1.30 M | $39.08 B |
| 06/23/2026 | $290.89 | $288.18 (-0.93%) | $291.95 | $285.26 | 1.09 M | $38.30 B |
| 06/22/2026 | $278.42 | $286.41 (2.87%) | $286.67 | $278.17 | 1.42 M | $38.06 B |
| 06/18/2026 | $280.11 | $278.09 (-0.72%) | $282.98 | $273.11 | 2.20 M | $36.96 B |
| 06/17/2026 | $281.31 | $282.72 (0.5%) | $288.00 | $277.78 | 1.32 M | $37.57 B |
| 06/16/2026 | $288.13 | $281.90 (-2.16%) | $288.48 | $276.94 | 1.21 M | $37.46 B |
| 06/15/2026 | $282.92 | $287.80 (1.72%) | $288.11 | $281.36 | 1.12 M | $38.25 B |
| 06/12/2026 | $288.96 | $282.85 (-2.11%) | $291.28 | $281.77 | 1.42 M | $37.59 B |
| 06/11/2026 | $290.70 | $289.39 (-0.45%) | $292.98 | $285.22 | 1.06 M | $38.46 B |
| 06/10/2026 | $297.69 | $291.22 (-2.17%) | $299.70 | $290.53 | 927.37 K | $38.70 B |
| 06/09/2026 | $297.31 | $297.69 (0.13%) | $302.85 | $293.97 | 1.26 M | $39.56 B |
| 06/08/2026 | $303.11 | $292.16 (-3.61%) | $303.57 | $285.54 | 1.65 M | $38.83 B |
| 06/05/2026 | $306.34 | $303.05 (-1.07%) | $306.73 | $300.50 | 1.00 M | $40.27 B |
| 06/04/2026 | $297.22 | $303.64 (2.16%) | $310.53 | $293.85 | 1.08 M | $40.35 B |
| 06/03/2026 | $284.48 | $292.58 (2.85%) | $293.16 | $283.10 | 988.83 K | $38.88 B |
| 06/02/2026 | $293.94 | $286.12 (-2.66%) | $295.60 | $285.00 | 1.04 M | $38.02 B |
| 06/01/2026 | $299.51 | $295.63 (-1.3%) | $303.98 | $295.13 | 1.19 M | $39.29 B |
| 05/29/2026 | $302.43 | $301.98 (-0.15%) | $305.68 | $297.62 | 2.28 M | $40.13 B |
| 05/28/2026 | $293.00 | $305.06 (4.12%) | $305.98 | $291.84 | 1.02 M | $40.54 B |
| 05/27/2026 | $293.40 | $295.63 (0.76%) | $299.98 | $292.91 | 629.52 K | $39.29 B |
| 05/26/2026 | $299.00 | $295.50 (-1.17%) | $301.09 | $294.26 | 649.73 K | $39.27 B |
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