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 — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$8.15$8.15237,700
2011-12-29$8.22$8.22153,700
2011-12-28$7.99$7.99106,400
2011-12-27$8.12$8.12144,300
2011-12-23$8.19$8.1978,300
2011-12-22$8.04$8.04242,700
2011-12-21$8.16$8.16244,500
2011-12-20$7.91$7.91319,300
2011-12-19$7.62$7.62145,800
2011-12-16$7.76$7.76511,500
2011-12-15$7.90$7.90720,400
2011-12-14$7.37$7.37353,800
2011-12-13$7.16$7.16201,900
2011-12-12$7.24$7.24260,900
2011-12-09$7.09$7.09164,300
2011-12-08$6.87$6.87221,200
2011-12-07$7.07$7.07187,700
2011-12-06$6.97$6.97169,300
2011-12-05$6.89$6.89244,800
2011-12-02$6.81$6.81243,200
2011-12-01$6.87$6.87379,500
2011-11-30$7.10$7.10469,400
2011-11-29$6.60$6.60421,800
2011-11-28$6.77$6.77375,400
2011-11-25$6.50$6.50214,200
2011-11-23$6.50$6.50370,400
2011-11-22$6.76$6.76340,700
2011-11-21$7.06$7.06165,700
2011-11-18$7.21$7.21478,200
2011-11-17$6.96$6.96285,400
2011-11-16$6.74$6.74253,000
2011-11-15$6.93$6.93308,700
2011-11-14$7.05$7.05345,600
2011-11-11$7.26$7.26163,700
2011-11-10$7.16$7.16410,000
2011-11-09$7.34$7.34278,400
2011-11-08$7.68$7.68329,000
2011-11-07$7.84$7.84292,600
2011-11-04$7.90$7.90225,400
2011-11-03$8.11$8.11279,900
2011-11-02$7.78$7.78263,800
2011-11-01$7.73$7.73407,500
2011-10-31$8.12$8.12258,800
2011-10-28$8.54$8.54271,100
2011-10-27$8.51$8.51403,400
2011-10-26$7.83$7.83250,100
2011-10-25$7.51$7.51314,700
2011-10-24$7.83$7.83338,700
2011-10-21$7.54$7.54241,600
2011-10-20$7.36$7.36140,100
2011-10-19$7.32$7.32126,200
2011-10-18$7.54$7.54206,000
2011-10-17$7.09$7.09229,400
2011-10-14$7.51$7.51300,300
2011-10-13$7.13$7.13158,000
2011-10-12$7.02$7.02192,900
2011-10-11$6.78$6.78227,100
2011-10-10$6.69$6.69161,400
2011-10-07$6.43$6.43197,300
2011-10-06$6.54$6.54287,500
2011-10-05$6.61$6.61271,400
2011-10-04$6.46$6.46427,800
2011-10-03$6.00$6.00356,900
2011-09-30$6.57$6.57262,600
2011-09-29$6.70$6.70171,700
2011-09-28$6.65$6.65379,000
2011-09-27$6.85$6.85608,200
2011-09-26$6.70$6.70142,100
2011-09-23$6.80$6.80279,500
2011-09-22$6.72$6.72327,600
2011-09-21$6.92$6.92220,200
2011-09-20$6.93$6.93296,000
2011-09-19$6.97$6.97188,600
2011-09-16$7.48$7.48849,500
2011-09-15$7.43$7.43166,600
2011-09-14$7.36$7.36326,600
2011-09-13$7.25$7.25419,700
2011-09-12$6.58$6.58307,600
2011-09-09$6.38$6.38288,600
2011-09-08$6.66$6.66172,900
2011-09-07$6.81$6.81203,500
2011-09-06$6.45$6.45268,100
2011-09-02$6.52$6.52310,800
2011-09-01$6.80$6.80253,000
2011-08-31$6.98$6.98219,500
2011-08-30$7.17$7.17149,400
2011-08-29$7.19$7.19123,300
2011-08-26$6.76$6.76101,800
2011-08-25$6.68$6.68169,900
2011-08-24$6.90$6.90152,200
2011-08-23$6.85$6.85240,300
2011-08-22$6.47$6.47183,800
2011-08-19$6.62$6.62149,800
2011-08-18$6.65$6.65271,700
2011-08-17$7.17$7.17168,000
2011-08-16$7.19$7.19319,600
2011-08-15$7.34$7.34175,100
2011-08-12$6.90$6.90257,000
2011-08-11$7.00$7.00345,600
2011-08-10$6.37$6.37392,800
2011-08-09$7.15$7.15370,000
2011-08-08$6.91$6.91353,000
2011-08-05$7.56$7.56457,200
2011-08-04$7.69$7.69260,600
2011-08-03$8.44$8.44324,100
2011-08-02$9.04$9.04245,400
2011-08-01$9.40$9.40199,700
2011-07-29$9.38$9.38162,700
2011-07-28$9.44$9.44121,100
2011-07-27$9.40$9.40193,600
2011-07-26$9.56$9.5696,500
2011-07-25$9.70$9.70126,700
2011-07-22$9.89$9.89128,100
2011-07-21$10.12$10.12126,200
2011-07-20$9.81$9.8179,700
2011-07-19$9.76$9.76245,600
2011-07-18$9.87$9.87138,100
2011-07-15$10.26$10.26344,100
2011-07-14$10.15$10.15165,500
2011-07-13$9.99$9.99178,900
2011-07-12$9.75$9.75259,900
2011-07-11$9.44$9.44105,900
2011-07-08$9.44$9.44117,500
2011-07-07$9.45$9.45131,300
2011-07-06$9.40$9.4084,700
2011-07-05$9.35$9.35112,400
2011-07-01$9.40$9.40142,600
2011-06-30$9.37$9.37132,000
2011-06-29$9.25$9.2591,500
2011-06-28$9.31$9.31125,200
2011-06-27$9.19$9.1994,000
2011-06-24$8.98$8.98322,400
2011-06-23$9.07$9.07103,800
2011-06-22$9.09$9.09126,900
2011-06-21$9.06$9.06181,500
2011-06-20$8.98$8.98273,000
2011-06-17$9.03$9.03680,500
2011-06-16$9.40$9.40151,400
2011-06-15$9.15$9.15128,900
2011-06-14$9.27$9.27156,300
2011-06-13$9.31$9.31208,900
2011-06-10$9.00$9.00214,400
2011-06-09$9.30$9.30163,600
2011-06-08$9.59$9.59236,700
2011-06-07$9.67$9.67118,300
2011-06-06$9.63$9.63233,800
2011-06-03$9.82$9.82205,100
2011-06-02$10.11$10.11156,200
2011-06-01$10.20$10.20209,900
2011-05-31$10.47$10.47319,300
2011-05-27$10.30$10.30111,200
2011-05-26$9.93$9.93112,900
2011-05-25$9.68$9.68262,300
2011-05-24$9.55$9.55209,000
2011-05-23$9.60$9.60408,300
2011-05-20$9.95$9.95180,500
2011-05-19$9.98$9.98148,300
2011-05-18$9.95$9.9568,500
2011-05-17$9.95$9.95185,300
2011-05-16$9.92$9.92244,000
2011-05-13$10.23$10.23216,000
2011-05-12$10.19$10.19199,800
2011-05-11$9.85$9.85176,500
2011-05-10$10.00$10.00229,000
2011-05-09$9.78$9.78151,400
2011-05-06$9.92$9.92272,000
2011-05-05$9.56$9.56381,000
2011-05-04$9.70$9.70400,600
2011-05-03$9.86$9.86626,700
2011-05-02$10.00$10.00253,400
2011-04-29$10.26$10.26311,000
2011-04-28$10.01$10.01171,900
2011-04-27$9.90$9.90171,600
2011-04-26$9.66$9.66273,300
2011-04-25$9.56$9.56142,000
2011-04-21$9.46$9.46125,300
2011-04-20$9.57$9.57156,800
2011-04-19$9.49$9.49154,800
2011-04-18$9.51$9.5199,900
2011-04-15$9.62$9.62128,400
2011-04-14$9.56$9.56151,600
2011-04-13$9.43$9.43158,700
2011-04-12$9.58$9.58169,700
2011-04-11$9.74$9.74227,900
2011-04-08$9.83$9.83162,900
2011-04-07$9.97$9.97229,600
2011-04-06$9.96$9.96206,800
2011-04-05$9.64$9.64112,600
2011-04-04$9.59$9.59198,000
2011-04-01$9.72$9.72201,700
2011-03-31$9.56$9.56205,600
2011-03-30$9.83$9.83232,500
2011-03-29$9.45$9.45277,400
2011-03-28$9.22$9.22417,000
2011-03-25$9.39$9.39252,200
2011-03-24$9.58$9.58161,500
2011-03-23$9.52$9.52185,500
2011-03-22$9.82$9.82134,300
2011-03-21$9.64$9.64269,000
2011-03-18$9.82$9.821,238,200
2011-03-17$9.86$9.86244,300
2011-03-16$10.15$10.15384,300
2011-03-15$9.80$9.80290,900
2011-03-14$10.14$10.14299,200
2011-03-11$9.78$9.78503,300
2011-03-10$10.16$10.16203,200
2011-03-09$10.41$10.41124,900
2011-03-08$10.30$10.30144,700
2011-03-07$10.18$10.18344,100
2011-03-04$10.52$10.52110,900
2011-03-03$10.57$10.57150,400
2011-03-02$10.60$10.60199,300
2011-03-01$10.71$10.71189,500
2011-02-28$10.98$10.98256,900
2011-02-25$11.36$11.36259,000
2011-02-24$11.10$11.10326,000
2011-02-23$11.36$11.36493,800
2011-02-22$11.17$11.17601,400
2011-02-18$11.37$11.371,562,900
2011-02-17$9.87$9.87231,500
2011-02-16$10.08$10.08139,300
2011-02-15$10.01$10.01125,900
2011-02-14$10.11$10.11125,500
2011-02-11$10.00$10.00177,700
2011-02-10$9.76$9.76148,400
2011-02-09$9.92$9.92131,000
2011-02-08$9.87$9.87128,200
2011-02-07$10.00$10.0097,200
2011-02-04$10.04$10.04228,200
2011-02-03$9.96$9.96256,300
2011-02-02$10.32$10.32160,100
2011-02-01$10.26$10.26234,400
2011-01-31$10.33$10.33220,100
2011-01-28$10.29$10.29356,400
2011-01-27$10.62$10.62322,700
2011-01-26$10.95$10.95385,600
2011-01-25$10.97$10.97363,300
2011-01-24$10.58$10.58170,900
2011-01-21$10.60$10.60330,400
2011-01-20$10.34$10.34233,400
2011-01-19$10.31$10.31269,200
2011-01-18$10.67$10.67226,600
2011-01-14$10.62$10.62290,200
2011-01-13$10.33$10.33148,000
2011-01-12$10.33$10.33195,700
2011-01-11$10.11$10.11218,700
2011-01-10$10.02$10.02364,800
2011-01-07$10.06$10.06351,200
2011-01-06$10.28$10.28505,900
2011-01-05$10.45$10.45252,400
2011-01-04$10.16$10.16242,100
2011-01-03$10.01$10.01233,100