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Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
458.12
-7.22 (-1.55%)
At close: Dec 5, 2025, 4:00 PM EST
451.16
-6.96 (-1.52%)
After-hours: Dec 5, 2025, 7:40 PM EST

Alnylam Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Dec 5, 2025468.29473.50455.32458.12458.12-1.55%621,475
Dec 4, 2025472.67477.06463.03465.34465.34-1.68%983,961
Dec 3, 2025466.49479.79460.41473.29473.291.80%1,076,170
Dec 2, 2025453.90472.48453.01464.93464.932.28%1,203,919
Dec 1, 2025450.00462.93448.27454.56454.560.74%1,070,637
Nov 28, 2025448.18455.76444.43451.23451.231.37%563,859
Nov 26, 2025432.87447.69430.27445.12445.123.56%908,163
Nov 25, 2025436.84441.82428.57429.80429.80-1.02%1,009,228
Nov 24, 2025439.46444.67420.30434.23434.23-0.49%1,750,352
Nov 21, 2025448.23449.53433.50436.38436.38-2.11%1,298,052
Nov 20, 2025463.32467.73445.34445.79445.79-3.25%787,662
Nov 19, 2025462.27465.32456.90460.76460.76-0.33%893,894
Nov 18, 2025458.15469.11456.27462.30462.300.38%668,666
Nov 17, 2025449.00463.92449.00460.54460.542.53%962,080
Nov 14, 2025453.87461.96448.28449.16449.16-1.06%968,547
Nov 13, 2025450.67456.14447.12453.97453.970.27%798,910
Nov 12, 2025450.63459.27446.71452.74452.740.17%937,690
Nov 11, 2025443.53455.20441.21451.95451.952.32%981,717
Nov 10, 2025445.00449.68440.93441.70441.70-0.23%739,044
Nov 7, 2025437.81443.69430.84442.70442.700.50%822,669
Nov 6, 2025431.78445.50429.00440.49440.491.36%700,509
Nov 5, 2025422.11438.53417.00434.56434.562.62%974,550
Nov 4, 2025429.90431.50421.83423.47423.47-2.44%1,170,232
Nov 3, 2025454.58457.26429.60434.07434.07-4.82%1,556,549
Oct 31, 2025449.00459.77441.22456.04456.041.44%1,817,670
Oct 30, 2025450.00472.36436.51449.56449.56-6.65%2,313,994
Oct 29, 2025475.19482.73467.09481.59481.591.19%1,360,223
Oct 28, 2025476.50484.61473.29475.91475.91-0.56%836,305
Oct 27, 2025465.56485.36465.55478.58478.583.27%1,174,680
Oct 24, 2025468.68469.29459.38463.43463.43-0.12%771,302
Oct 23, 2025464.71468.86456.90464.00464.00-0.19%683,376
Oct 22, 2025477.66480.53461.21464.90464.90-1.92%950,023
Oct 21, 2025488.42490.05471.40474.00474.00-3.51%826,254
Oct 20, 2025476.82495.55476.82491.22491.221.98%950,011
Oct 17, 2025481.65492.62476.44481.67481.670.12%1,029,195
Oct 16, 2025474.39488.39470.46481.07481.072.30%964,728
Oct 15, 2025469.19485.28467.50470.27470.270.19%1,475,359
Oct 14, 2025462.13479.69457.73469.36469.360.95%1,435,825
Oct 13, 2025456.13473.65453.83464.95464.950.98%1,579,240
Oct 10, 2025460.28460.60451.00460.46460.460.77%937,064
Oct 9, 2025451.00459.57448.83456.95456.951.39%1,051,960
Oct 8, 2025464.46464.46449.72450.68450.68-1.94%929,883
Oct 7, 2025456.94462.63448.95459.58459.581.68%791,895
Oct 6, 2025458.69458.69449.92452.00452.00-0.95%918,501
Oct 3, 2025465.01465.01448.47456.35456.35-1.01%969,089
Oct 2, 2025457.64461.53446.18460.99460.990.07%1,269,237
Oct 1, 2025456.00467.42453.31460.65460.651.02%1,370,050
Sep 30, 2025445.22459.30445.22456.00456.001.90%1,379,551
Sep 29, 2025448.00451.63446.30447.49447.490.24%719,079
Sep 26, 2025453.05453.05442.51446.40446.40-0.71%812,999