Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
475.91
-2.67 (-0.56%)
At close: Oct 28, 2025, 4:00 PM EDT
476.02
+0.11 (0.02%)
After-hours: Oct 28, 2025, 6:45 PM EDT

Alnylam Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 28, 2025476.50484.61473.29475.91475.91-0.56%836,251
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
Sep 25, 2025457.03459.00446.42449.58449.58-1.92%685,313
Sep 24, 2025454.35462.69450.97458.37458.370.87%975,991
Sep 23, 2025452.83457.47450.50454.41454.41-0.98%1,024,608
Sep 22, 2025453.56462.88450.23458.92458.921.18%971,763
Sep 19, 2025457.68457.68450.72453.56453.560.31%1,713,315
Sep 18, 2025454.00456.94443.75452.17452.170.10%1,061,008
Sep 17, 2025455.76463.88450.70451.73451.73-2.06%1,445,600
Sep 16, 2025465.14467.28457.99461.24461.240.02%773,501
Sep 15, 2025464.80466.24454.51461.14461.14-1.02%910,067
Sep 12, 2025468.29475.69465.48465.89465.89-0.57%630,781
Sep 11, 2025474.34474.34465.16468.58468.58-0.16%1,005,306
Sep 10, 2025478.50480.05461.47469.31469.31-2.66%1,817,375
Sep 9, 2025461.12484.21455.30482.13482.135.96%3,217,762
Sep 8, 2025457.31463.00452.85455.03455.030.67%925,993
Sep 5, 2025453.45455.28444.66452.00452.00-0.34%751,500
Sep 4, 2025449.43458.30447.11453.54453.541.37%714,264
Sep 3, 2025444.77456.18442.73447.43447.430.10%1,271,559
Sep 2, 2025445.84454.50441.50447.00447.000.11%1,072,194
Aug 29, 2025452.22453.96444.79446.51446.51-1.29%827,614
Aug 28, 2025452.01457.29451.12452.33452.33-0.41%641,007
Aug 27, 2025449.05455.45447.63454.18454.180.66%906,745
Aug 26, 2025451.50451.50444.25451.20451.201.70%1,183,717
Aug 25, 2025453.37458.75442.38443.64443.64-2.36%1,200,028
Aug 22, 2025469.17469.81454.20454.38454.38-2.82%1,075,672
Aug 21, 2025459.62467.71454.68467.55467.552.02%760,122
Aug 20, 2025459.34466.31456.06458.31458.310.01%1,223,522
Aug 19, 2025457.00462.88450.88458.28458.280.31%1,322,098