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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$115.17$115.17368,700——
2019-12-30$114.69$114.69339,800——
2019-12-27$117.54$117.54326,600——
2019-12-26$117.77$117.77185,000——
2019-12-24$117.69$117.69190,800——
2019-12-23$117.33$117.33507,800——
2019-12-20$115.93$115.93946,100——
2019-12-19$117.85$117.851,085,200——
2019-12-18$115.34$115.34987,100——
2019-12-17$116.55$116.551,368,600——
2019-12-16$120.12$120.12786,100——
2019-12-13$117.74$117.74469,600——
2019-12-12$120.61$120.61471,800——
2019-12-11$118.79$118.79522,800——
2019-12-10$121.84$121.84696,900——
2019-12-09$120.71$120.71525,200——
2019-12-06$123.76$123.76888,900——
2019-12-05$124.23$124.23980,000——
2019-12-04$121.98$121.98763,200——
2019-12-03$122.37$122.37806,900——
2019-12-02$118.58$118.58734,700——
2019-11-29$117.14$117.14332,400——
2019-11-27$117.56$117.56591,800——
2019-11-26$119.06$119.061,224,600——
2019-11-25$112.42$112.421,715,300——
2019-11-22$106.91$106.911,471,800——
2019-11-21$111.20$111.201,728,700——
2019-11-20$108.21$108.212,249,800——
2019-11-19$97.93$97.931,244,900——
2019-11-18$92.73$92.73729,200——
2019-11-15$92.05$92.05358,400——
2019-11-14$90.46$90.46646,500——
2019-11-13$90.58$90.58640,700——
2019-11-12$90.85$90.85426,500——
2019-11-11$92.45$92.45278,000——
2019-11-08$93.03$93.03536,600——
2019-11-07$91.54$91.54526,400——
2019-11-06$90.53$90.53440,400——
2019-11-05$92.05$92.05406,900——
2019-11-04$91.74$91.74533,800——
2019-11-01$91.01$91.01750,500——
2019-10-31$86.74$86.741,074,600——
2019-10-30$87.27$87.27709,600——
2019-10-29$88.20$88.20758,100——
2019-10-28$90.14$90.14497,800——
2019-10-25$89.25$89.25310,600——
2019-10-24$88.90$88.90457,900——
2019-10-23$89.76$89.76677,600——
2019-10-22$89.16$89.16871,000——
2019-10-21$86.76$86.76639,100——
2019-10-18$84.78$84.78853,900——
2019-10-17$81.88$81.88495,100——
2019-10-16$81.67$81.67793,200——
2019-10-15$80.85$80.85537,500——
2019-10-14$79.14$79.14332,300——
2019-10-11$78.97$78.97407,800——
2019-10-10$77.64$77.64304,400——
2019-10-09$77.00$77.00444,100——
2019-10-08$75.49$75.49622,300——
2019-10-07$76.98$76.98460,000——
2019-10-04$77.02$77.02517,500——
2019-10-03$76.70$76.70514,800——
2019-10-02$75.76$75.761,020,300——
2019-10-01$74.51$74.51907,600——
2019-09-30$80.42$80.42824,600——
2019-09-27$81.10$81.10603,400——
2019-09-26$80.06$80.06732,700——
2019-09-25$83.69$83.69338,700——
2019-09-24$83.48$83.48627,500——
2019-09-23$84.74$84.74550,900——
2019-09-20$86.50$86.501,275,400——
2019-09-19$84.60$84.60654,600——
2019-09-18$85.49$85.49738,200——
2019-09-17$87.82$87.82946,100——
2019-09-16$84.77$84.77554,000——
2019-09-13$83.69$83.69862,200——
2019-09-12$83.17$83.17613,900——
2019-09-11$86.17$86.17642,100——
2019-09-10$84.27$84.27754,400——
2019-09-09$82.69$82.69780,200——
2019-09-06$79.82$79.82648,400——
2019-09-05$83.14$83.14470,700——
2019-09-04$82.33$82.33746,100——
2019-09-03$81.76$81.761,004,700——
2019-08-30$80.69$80.69422,500——
2019-08-29$82.39$82.39593,200——
2019-08-28$82.32$82.32362,600——
2019-08-27$82.21$82.211,557,500——
2019-08-26$82.24$82.24700,100——
2019-08-23$81.89$81.89792,200——
2019-08-22$82.16$82.16706,200——
2019-08-21$83.37$83.37552,100——
2019-08-20$82.14$82.14619,000——
2019-08-19$82.20$82.20723,900——
2019-08-16$80.69$80.69481,300——
2019-08-15$78.37$78.37382,200——
2019-08-14$79.05$79.05965,300——
2019-08-13$80.00$80.00791,100——
2019-08-12$78.88$78.88644,400——
2019-08-09$80.78$80.78779,000——
2019-08-08$82.97$82.971,088,900——
2019-08-07$80.50$80.501,452,000——
2019-08-06$74.38$74.38954,900——
2019-08-05$71.41$71.41956,200——
2019-08-02$73.98$73.98547,900——
2019-08-01$75.36$75.36581,900——
2019-07-31$77.59$77.59707,800——
2019-07-30$77.98$77.98479,900——
2019-07-29$75.63$75.63518,000——
2019-07-26$76.36$76.36346,700——
2019-07-25$74.14$74.14708,600——
2019-07-24$76.48$76.48695,700——
2019-07-23$76.90$76.90656,900——
2019-07-22$76.39$76.39939,600——
2019-07-19$75.37$75.371,334,900——
2019-07-18$75.89$75.89786,200——
2019-07-17$72.68$72.68966,300——
2019-07-16$74.24$74.24507,800——
2019-07-15$72.79$72.79592,500——
2019-07-12$71.54$71.54774,700——
2019-07-11$73.41$73.41653,400——
2019-07-10$74.11$74.11733,700——
2019-07-09$73.24$73.24668,300——
2019-07-08$70.90$70.90537,700——
2019-07-05$72.19$72.19623,500——
2019-07-03$72.64$72.64340,600——
2019-07-02$72.97$72.97398,300——
2019-07-01$72.01$72.01645,400——
2019-06-28$72.56$72.561,112,900——
2019-06-27$71.08$71.08787,200——
2019-06-26$69.49$69.49548,100——
2019-06-25$71.14$71.14331,900——
2019-06-24$71.80$71.80479,800——
2019-06-21$74.37$74.37688,700——
2019-06-20$73.44$73.44388,200——
2019-06-19$71.97$71.97809,300——
2019-06-18$73.02$73.02870,300——
2019-06-17$71.50$71.50720,800——
2019-06-14$70.03$70.03413,500——
2019-06-13$71.24$71.24471,800——
2019-06-12$70.00$70.00362,000——
2019-06-11$69.92$69.92612,500——
2019-06-10$70.72$70.72709,100——
2019-06-07$70.40$70.40915,800——
2019-06-06$70.80$70.80585,100——
2019-06-05$70.55$70.551,095,600——
2019-06-04$68.80$68.80781,700——
2019-06-03$66.87$66.871,289,900——
2019-05-31$67.52$67.52612,600——
2019-05-30$68.71$68.71572,000——
2019-05-29$67.63$67.63738,600——
2019-05-28$68.13$68.131,097,300——
2019-05-24$68.93$68.931,247,500——
2019-05-23$67.91$67.91722,800——
2019-05-22$67.81$67.81501,400——
2019-05-21$67.87$67.871,232,000——
2019-05-20$65.86$65.861,144,300——
2019-05-17$67.54$67.54815,500——
2019-05-16$68.73$68.73894,400——
2019-05-15$68.07$68.07927,100——
2019-05-14$67.60$67.601,511,000——
2019-05-13$68.77$68.771,439,600——
2019-05-10$71.46$71.461,434,600——
2019-05-09$72.14$72.142,042,300——
2019-05-08$70.15$70.151,532,600——
2019-05-07$70.82$70.822,810,500——
2019-05-06$74.08$74.083,708,800——
2019-05-03$77.29$77.294,643,900——
2019-05-02$82.54$82.54935,400——
2019-05-01$83.03$83.031,660,500——
2019-04-30$89.34$89.34812,600——
2019-04-29$88.53$88.53527,200——
2019-04-26$87.06$87.06845,600——
2019-04-25$87.88$87.88650,500——
2019-04-24$85.37$85.37346,800——
2019-04-23$87.41$87.41609,800——
2019-04-22$83.16$83.16712,800——
2019-04-18$82.07$82.071,376,400——
2019-04-17$84.89$84.89867,200——
2019-04-16$88.56$88.56450,200——
2019-04-15$88.53$88.53720,600——
2019-04-12$89.81$89.81787,000——
2019-04-11$88.10$88.10854,400——
2019-04-10$90.89$90.89650,500——
2019-04-09$88.91$88.91900,600——
2019-04-08$90.17$90.171,025,200——
2019-04-05$92.79$92.79752,200——
2019-04-04$91.45$91.45417,700——
2019-04-03$92.06$92.06732,700——
2019-04-02$92.57$92.57415,200——
2019-04-01$91.83$91.83699,400——
2019-03-29$93.45$93.451,275,000——
2019-03-28$90.61$90.61717,700——
2019-03-27$86.35$86.35625,400——
2019-03-26$87.14$87.14528,300——
2019-03-25$84.17$84.17506,400——
2019-03-22$84.52$84.52764,500——
2019-03-21$90.74$90.74511,200——
2019-03-20$88.68$88.68520,100——
2019-03-19$88.63$88.63428,400——
2019-03-18$90.24$90.24622,200——
2019-03-15$91.43$91.431,096,500——
2019-03-14$88.34$88.34457,300——
2019-03-13$91.76$91.76625,600——
2019-03-12$87.97$87.97601,800——
2019-03-11$87.85$87.85703,300——
2019-03-08$83.27$83.27554,000——
2019-03-07$83.37$83.37589,400——
2019-03-06$84.75$84.752,301,000——
2019-03-05$88.31$88.31849,900——
2019-03-04$85.00$85.00717,800——
2019-03-01$85.37$85.37537,900——
2019-02-28$85.00$85.00679,200——
2019-02-27$85.00$85.00689,000——
2019-02-26$81.70$81.70634,400——
2019-02-25$81.62$81.62513,800——
2019-02-22$78.18$78.18610,500——
2019-02-21$76.21$76.21816,700——
2019-02-20$77.75$77.75744,600——
2019-02-19$80.38$80.38789,000——
2019-02-15$83.53$83.53542,200——
2019-02-14$83.03$83.03398,000——
2019-02-13$84.39$84.39694,300——
2019-02-12$83.83$83.83592,500——
2019-02-11$80.81$80.81746,800——
2019-02-08$77.69$77.691,637,900——
2019-02-07$80.80$80.801,003,000——
2019-02-06$81.76$81.76955,700——
2019-02-05$82.30$82.30749,500——
2019-02-04$85.23$85.23354,600——
2019-02-01$84.58$84.58975,800——
2019-01-31$83.53$83.53763,000——
2019-01-30$81.70$81.70462,900——
2019-01-29$79.12$79.12597,700——
2019-01-28$76.66$76.661,768,700——
2019-01-25$83.05$83.05944,000——
2019-01-24$80.79$80.79792,600——
2019-01-23$80.01$80.01821,500——
2019-01-22$80.66$80.661,019,900——
2019-01-18$83.12$83.121,063,000——
2019-01-17$80.68$80.68680,100——
2019-01-16$80.88$80.88935,400——
2019-01-15$80.45$80.453,311,500——
2019-01-14$84.02$84.02736,200——
2019-01-11$89.12$89.12552,400——
2019-01-10$89.16$89.16645,300——
2019-01-09$84.78$84.78534,100——
2019-01-08$85.34$85.34995,900——
2019-01-07$81.78$81.781,156,900——
2019-01-04$75.20$75.20855,800——
2019-01-03$73.21$73.21645,400——
2019-01-02$72.76$72.76773,400——