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Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
291.37
-1.80 (-0.61%)
At close: Jun 26, 2026, 4:00 PM EDT
291.14
-0.23 (-0.08%)
After-hours: Jun 26, 2026, 6:19 PM EDT

Alnylam Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 26, 2026297.57302.96290.37291.37291.37-0.61%1,474,629
Jun 25, 2026293.68298.35290.07293.17293.17-0.30%1,125,339
Jun 24, 2026290.95303.46288.85294.06294.062.04%1,297,776
Jun 23, 2026290.89291.95285.26288.18288.180.62%1,038,199
Jun 22, 2026278.42286.67278.17286.41286.412.99%1,420,390
Jun 18, 2026280.11282.98273.11278.09278.09-1.64%2,114,301
Jun 17, 2026281.31288.00277.78282.72282.720.29%1,321,841
Jun 16, 2026288.13288.48276.94281.90281.90-2.05%1,213,232
Jun 15, 2026282.92288.11281.36287.80287.801.75%1,118,586
Jun 12, 2026288.96291.28281.77282.85282.85-2.26%1,420,050
Jun 11, 2026290.70292.98285.22289.39289.39-0.63%1,061,496
Jun 10, 2026297.69299.70290.53291.22291.22-2.17%927,374
Jun 9, 2026297.31302.85293.97297.69297.691.89%1,260,043
Jun 8, 2026303.11303.57285.54292.16292.16-3.59%1,651,435
Jun 5, 2026306.34306.73300.50303.05303.05-0.19%1,004,445
Jun 4, 2026297.22310.53293.85303.64303.643.78%1,081,496
Jun 3, 2026284.48293.16283.10292.58292.582.26%988,833
Jun 2, 2026293.94295.60285.00286.12286.12-3.22%1,042,633
Jun 1, 2026299.51303.98295.13295.63295.63-2.10%1,186,174
May 29, 2026302.43305.68297.62301.98301.98-1.01%2,278,069
May 28, 2026293.00305.98291.84305.06305.063.19%1,020,772
May 27, 2026293.40299.98292.91295.63295.630.04%629,519
May 26, 2026299.00301.09294.26295.50295.50-0.66%649,732
May 22, 2026299.12303.33294.99297.45297.45-1.02%681,308
May 21, 2026296.64301.43293.00300.51300.510.68%650,366
May 20, 2026297.80300.08292.10298.48298.481.42%799,240
May 19, 2026289.00294.93284.38294.30294.302.81%770,339
May 18, 2026287.14291.97285.26286.27286.27-0.25%873,361
May 15, 2026294.78298.00286.76286.98286.98-2.20%1,149,640
May 14, 2026290.72297.00287.51293.45293.450.68%889,670
May 13, 2026290.70298.38288.56291.48291.48-0.19%975,853
May 12, 2026288.66295.86286.73292.03292.032.52%826,171
May 11, 2026294.15296.37284.28284.84284.84-3.46%1,287,797
May 8, 2026295.91300.17293.06295.05295.05-0.29%926,772
May 7, 2026300.55303.46293.78295.91295.91-2.34%1,144,021
May 6, 2026301.57306.03298.96303.00303.000.63%1,012,334
May 5, 2026297.81302.67295.02301.11301.111.07%823,895
May 4, 2026298.00300.49288.06297.93297.930.61%1,590,519
May 1, 2026308.76311.88295.79296.11296.11-4.32%1,132,872
Apr 30, 2026307.48317.56287.00309.49309.492.76%2,192,132
Apr 29, 2026300.48304.22294.06301.19301.19-0.30%1,569,856
Apr 28, 2026308.97314.17301.80302.11302.11-2.07%996,287
Apr 27, 2026303.87314.74303.70308.51308.510.97%1,093,464
Apr 24, 2026309.63311.10302.90305.54305.54-2.63%825,633
Apr 23, 2026313.59315.83310.79313.79313.791.03%588,284
Apr 22, 2026308.43312.69307.85310.58310.580.70%1,003,730
Apr 21, 2026307.32310.50301.63308.43308.43-0.81%1,510,856
Apr 20, 2026306.56312.25305.00310.94310.940.41%966,541
Apr 17, 2026326.09326.53306.00309.66309.66-3.27%1,495,469
Apr 16, 2026333.39333.39318.93320.13320.13-3.98%1,022,841
Apr 15, 2026341.63342.23331.02333.39333.39-1.77%799,050
Apr 14, 2026330.81343.36330.54339.41339.411.92%1,228,645
Apr 13, 2026320.66333.56319.00333.00333.003.38%967,690
Apr 10, 2026323.49328.93317.53322.11322.110.26%698,672
Apr 9, 2026325.67326.90318.77321.28321.28-1.82%1,119,233
Apr 8, 2026327.49330.30324.44327.25327.252.42%1,024,695
Apr 7, 2026319.48322.35313.54319.52319.52-3.28%1,305,121
Apr 6, 2026320.10335.58320.10330.34330.343.60%1,276,806
Apr 2, 2026323.03325.49315.90318.85318.85-3.01%872,487
Apr 1, 2026332.69335.48327.59328.73328.73-0.65%673,304
Mar 31, 2026319.06332.48318.37330.87330.874.68%1,352,289
Mar 30, 2026319.32321.76314.21316.09316.09-0.40%1,223,904
Mar 27, 2026327.10329.69316.85317.36317.36-3.29%815,901
Mar 26, 2026328.90332.81327.69328.16328.16-0.16%1,119,781
Mar 25, 2026313.34329.48311.71328.70328.706.70%1,139,647
Mar 24, 2026303.42308.91299.62308.05308.050.45%1,497,337
Mar 23, 2026320.77323.23304.38306.66306.66-1.77%1,378,963
Mar 20, 2026311.05322.43311.05312.17312.170.34%2,050,765
Mar 19, 2026316.42317.61309.73311.10311.10-1.18%663,587
Mar 18, 2026317.50319.27312.58314.80314.80-1.75%1,077,650
Mar 17, 2026319.63326.96317.53320.42320.420.47%1,796,943
Mar 16, 2026311.22319.55311.22318.91318.911.75%1,247,482
Mar 13, 2026319.00319.50309.92313.41313.41-1.20%829,276
Mar 12, 2026320.53321.00309.61317.23317.23-1.00%1,247,315
Mar 11, 2026322.00323.71317.75320.43320.43-0.60%906,626
Mar 10, 2026325.60326.18317.03322.38322.38-0.37%1,169,417
Mar 9, 2026317.25323.68313.12323.59323.590.91%1,081,127
Mar 6, 2026317.73321.17312.09320.66320.660.05%996,497
Mar 5, 2026323.69328.28319.51320.51320.51-2.07%1,215,172
Mar 4, 2026319.20328.00317.25327.30327.302.71%931,151
Mar 3, 2026321.37324.06315.20318.65318.65-1.97%947,625
Mar 2, 2026329.41334.42323.16325.07325.07-2.36%1,302,332
Feb 27, 2026331.24334.80328.39332.92332.920.51%1,569,839
Feb 26, 2026328.67333.47322.00331.24331.241.19%880,311
Feb 25, 2026332.76334.42325.24327.36327.36-1.65%751,722
Feb 24, 2026328.22333.07324.48332.85332.851.06%791,573
Feb 23, 2026335.73341.39326.76329.35329.35-2.03%792,033
Feb 20, 2026336.58345.90335.83336.19336.19-0.94%1,375,285
Feb 19, 2026332.24339.61326.33339.37339.372.01%1,152,962
Feb 18, 2026328.86335.80324.53332.68332.680.02%1,151,205
Feb 17, 2026316.80336.21315.63332.61332.615.79%1,516,389
Feb 13, 2026302.55318.44302.55314.40314.401.92%1,476,326
Feb 12, 2026314.42315.51298.00308.48308.48-4.28%2,897,726
Feb 11, 2026322.14325.04317.80322.28322.28-0.22%1,582,249
Feb 10, 2026322.68325.98317.89322.98322.980.93%1,865,664
Feb 9, 2026325.49329.92319.26320.00320.00-2.49%1,392,019
Feb 6, 2026331.61340.07326.51328.16328.16-0.93%1,476,914
Feb 5, 2026350.50350.50327.27331.24331.24-5.89%2,620,979
Feb 4, 2026354.00355.49347.08351.96351.960.05%1,779,461
Feb 3, 2026338.49352.82337.59351.80351.803.74%2,152,860