NASDAQ:ALNY | Historical Stock Price | ALNYLAM PHARMACEUTICALS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2004-06-01 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$4.09$10.71$28.07$73.59$192.93$505.752004-06-012026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$21.40$21.40435,400
2006-12-28$21.58$21.58123,800
2006-12-27$21.59$21.59154,200
2006-12-26$21.55$21.5573,100
2006-12-22$21.59$21.59192,500
2006-12-21$21.50$21.50212,500
2006-12-20$22.12$22.12173,100
2006-12-19$22.39$22.39226,500
2006-12-18$22.30$22.30360,600
2006-12-15$22.70$22.70337,500
2006-12-14$22.75$22.75415,800
2006-12-13$23.10$23.10645,200
2006-12-12$22.08$22.081,462,800
2006-12-11$23.68$23.68362,800
2006-12-08$23.81$23.81447,300
2006-12-07$22.96$22.96186,800
2006-12-06$22.98$22.98543,400
2006-12-05$22.79$22.79460,800
2006-12-04$21.75$21.75410,300
2006-12-01$21.31$21.31328,400
2006-11-30$21.47$21.47392,200
2006-11-29$21.75$21.75572,800
2006-11-28$20.86$20.86605,300
2006-11-27$20.23$20.23386,300
2006-11-24$20.52$20.5261,200
2006-11-22$19.99$19.99159,900
2006-11-21$20.06$20.06170,000
2006-11-20$20.14$20.14149,600
2006-11-17$20.30$20.30117,100
2006-11-16$20.19$20.19166,300
2006-11-15$20.37$20.37236,800
2006-11-14$19.99$19.99403,200
2006-11-13$20.06$20.06688,900
2006-11-10$19.40$19.40335,000
2006-11-09$19.26$19.26345,100
2006-11-08$19.55$19.55284,100
2006-11-07$19.46$19.46321,200
2006-11-06$19.07$19.07565,400
2006-11-03$18.48$18.48648,100
2006-11-02$19.04$19.04402,500
2006-11-01$19.28$19.28624,100
2006-10-31$19.72$19.723,775,500
2006-10-30$16.60$16.60320,300
2006-10-27$16.81$16.81247,500
2006-10-26$17.01$17.01156,600
2006-10-25$16.50$16.50233,100
2006-10-24$16.79$16.79148,300
2006-10-23$17.16$17.16157,200
2006-10-20$17.07$17.07198,000
2006-10-19$17.31$17.31236,600
2006-10-18$16.84$16.84216,300
2006-10-17$16.61$16.61169,100
2006-10-16$16.55$16.55215,100
2006-10-13$16.13$16.13255,800
2006-10-12$16.54$16.54222,000
2006-10-11$16.49$16.49617,700
2006-10-10$17.09$17.09316,100
2006-10-09$16.79$16.79534,800
2006-10-06$16.21$16.21300,200
2006-10-05$15.72$15.72329,900
2006-10-04$14.92$14.92453,700
2006-10-03$14.32$14.32238,600
2006-10-02$14.11$14.11179,200
2006-09-29$14.41$14.41224,300
2006-09-28$14.48$14.48343,700
2006-09-27$14.50$14.50228,300
2006-09-26$14.11$14.11198,400
2006-09-25$13.64$13.64106,900
2006-09-22$13.18$13.18151,700
2006-09-21$13.48$13.48243,800
2006-09-20$14.02$14.02161,200
2006-09-19$13.54$13.54115,600
2006-09-18$13.97$13.97180,600
2006-09-15$14.51$14.51294,600
2006-09-14$14.02$14.02248,000
2006-09-13$14.38$14.38216,500
2006-09-12$14.05$14.05158,600
2006-09-11$13.69$13.69154,500
2006-09-08$14.02$14.02163,100
2006-09-07$13.87$13.87161,000
2006-09-06$13.90$13.90257,200
2006-09-05$14.26$14.26302,000
2006-09-01$14.28$14.28595,300
2006-08-31$13.02$13.02140,600
2006-08-30$12.79$12.79175,100
2006-08-29$13.05$13.05206,000
2006-08-28$12.67$12.67117,000
2006-08-25$12.73$12.73147,800
2006-08-24$12.62$12.62108,800
2006-08-23$12.82$12.82120,600
2006-08-22$13.12$13.1286,200
2006-08-21$13.39$13.39132,800
2006-08-18$13.12$13.12144,600
2006-08-17$12.98$12.98174,800
2006-08-16$12.85$12.85129,100
2006-08-15$12.58$12.58124,000
2006-08-14$12.11$12.11107,500
2006-08-11$11.82$11.82196,600
2006-08-10$11.72$11.72131,900
2006-08-09$11.82$11.82235,000
2006-08-08$12.28$12.28119,000
2006-08-07$12.58$12.58125,400
2006-08-04$12.57$12.57256,000
2006-08-03$12.87$12.87162,800
2006-08-02$12.55$12.55167,200
2006-08-01$12.79$12.79225,800
2006-07-31$12.77$12.77234,900
2006-07-28$12.40$12.40301,600
2006-07-27$12.05$12.05347,100
2006-07-26$12.44$12.44529,800
2006-07-25$12.60$12.60438,300
2006-07-24$12.15$12.15219,900
2006-07-21$11.61$11.61282,400
2006-07-20$11.87$11.87187,400
2006-07-19$12.84$12.84281,500
2006-07-18$11.95$11.95283,400
2006-07-17$11.74$11.74297,000
2006-07-14$12.55$12.55188,500
2006-07-13$12.72$12.72181,500
2006-07-12$13.44$13.44112,600
2006-07-11$13.99$13.99188,100
2006-07-10$13.49$13.49205,000
2006-07-07$13.91$13.91196,100
2006-07-06$14.45$14.45315,400
2006-07-05$14.80$14.80273,700
2006-07-03$15.52$15.52131,700
2006-06-30$15.08$15.083,272,600
2006-06-29$15.34$15.34421,700
2006-06-28$14.56$14.56114,200
2006-06-27$14.21$14.21182,200
2006-06-26$14.51$14.5166,900
2006-06-23$14.50$14.50259,600
2006-06-22$14.47$14.47244,000
2006-06-21$14.64$14.64198,300
2006-06-20$14.43$14.43164,500
2006-06-19$14.22$14.22284,600
2006-06-16$14.09$14.09131,800
2006-06-15$13.97$13.97147,800
2006-06-14$13.24$13.24257,700
2006-06-13$13.74$13.74193,000
2006-06-12$14.23$14.23176,500
2006-06-09$14.41$14.41799,700
2006-06-08$15.07$15.07402,600
2006-06-07$15.00$15.00164,500
2006-06-06$15.35$15.35485,100
2006-06-05$15.22$15.22114,900
2006-06-02$15.41$15.41195,900
2006-06-01$14.74$14.74235,500
2006-05-31$14.79$14.79151,900
2006-05-30$14.99$14.99333,700
2006-05-26$15.06$15.06169,800
2006-05-25$14.71$14.71226,300
2006-05-24$13.79$13.79338,000
2006-05-23$13.51$13.51329,900
2006-05-22$13.96$13.96595,300
2006-05-19$14.86$14.86414,000
2006-05-18$15.00$15.00267,200
2006-05-17$15.01$15.01235,900
2006-05-16$15.02$15.02147,200
2006-05-15$15.03$15.03267,400
2006-05-12$15.07$15.07337,400
2006-05-11$16.22$16.22247,900
2006-05-10$16.85$16.85370,200
2006-05-09$16.15$16.15248,800
2006-05-08$16.06$16.06217,000
2006-05-05$15.71$15.71160,200
2006-05-04$15.32$15.32643,600
2006-05-03$14.41$14.41192,200
2006-05-02$14.33$14.33224,900
2006-05-01$14.68$14.68231,700
2006-04-28$15.38$15.38162,200
2006-04-27$15.72$15.72247,700
2006-04-26$14.81$14.81278,200
2006-04-25$15.00$15.00234,400
2006-04-24$15.26$15.26135,200
2006-04-21$15.51$15.51102,100
2006-04-20$15.35$15.35281,800
2006-04-19$16.01$16.01711,900
2006-04-18$14.60$14.60476,500
2006-04-17$14.24$14.24341,400
2006-04-13$15.08$15.08167,400
2006-04-12$15.25$15.25210,000
2006-04-11$15.10$15.10457,600
2006-04-10$15.08$15.08356,800
2006-04-07$16.00$16.00251,400
2006-04-06$16.31$16.31202,800
2006-04-05$16.57$16.57238,500
2006-04-04$17.30$17.30124,900
2006-04-03$16.96$16.96148,100
2006-03-31$17.59$17.59316,800
2006-03-30$17.50$17.50348,200
2006-03-29$18.29$18.29254,700
2006-03-28$17.69$17.69180,500
2006-03-27$17.45$17.45417,300
2006-03-24$17.05$17.05119,200
2006-03-23$17.08$17.08151,500
2006-03-22$17.23$17.23153,500
2006-03-21$17.29$17.29476,600
2006-03-20$16.89$16.89135,700
2006-03-17$16.79$16.79126,200
2006-03-16$16.89$16.89186,600
2006-03-15$16.79$16.79179,700
2006-03-14$16.80$16.80162,500
2006-03-13$16.60$16.60288,800
2006-03-10$16.16$16.16205,700
2006-03-09$16.55$16.55170,800
2006-03-08$16.46$16.46385,700
2006-03-07$16.36$16.36491,200
2006-03-06$17.26$17.26470,800
2006-03-03$17.04$17.04838,700
2006-03-02$16.23$16.23425,500
2006-03-01$16.29$16.29592,900
2006-02-28$16.08$16.08570,200
2006-02-27$15.74$15.741,217,800
2006-02-24$14.72$14.72374,900
2006-02-23$14.85$14.85479,400
2006-02-22$15.67$15.67728,800
2006-02-21$15.46$15.46897,900
2006-02-17$14.04$14.04363,100
2006-02-16$13.35$13.35386,100
2006-02-15$13.57$13.57666,700
2006-02-14$13.20$13.201,054,700
2006-02-13$12.13$12.13204,000
2006-02-10$11.91$11.91316,200
2006-02-09$12.02$12.02180,600
2006-02-08$12.17$12.17282,800
2006-02-07$12.74$12.74321,800
2006-02-06$12.95$12.95404,200
2006-02-03$12.76$12.76301,700
2006-02-02$13.00$13.00499,600
2006-02-01$12.75$12.751,750,500
2006-01-31$13.44$13.44363,500
2006-01-30$12.68$12.68460,300
2006-01-27$13.19$13.19143,900
2006-01-26$13.28$13.28135,100
2006-01-25$13.69$13.6986,300
2006-01-24$13.62$13.62247,200
2006-01-23$14.66$14.66137,300
2006-01-20$14.99$14.99232,400
2006-01-19$14.81$14.81207,600
2006-01-18$14.45$14.45159,500
2006-01-17$14.35$14.35150,100
2006-01-13$14.17$14.1784,400
2006-01-12$14.17$14.17118,900
2006-01-11$14.40$14.40269,900
2006-01-10$14.45$14.45207,500
2006-01-09$13.97$13.97341,800
2006-01-06$13.02$13.02126,200
2006-01-05$13.14$13.14145,400
2006-01-04$12.98$12.9898,900
2006-01-03$12.96$12.9693,400