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.

View year

Historical Stock Price — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$127.05$127.05522,500
2017-12-28$129.88$129.88435,200
2017-12-27$128.56$128.56389,100
2017-12-26$124.68$124.68407,200
2017-12-22$123.96$123.961,029,300
2017-12-21$122.83$122.83474,700
2017-12-20$121.97$121.97717,300
2017-12-19$122.85$122.851,113,900
2017-12-18$122.76$122.761,075,500
2017-12-15$125.59$125.592,613,400
2017-12-14$123.66$123.661,272,000
2017-12-13$124.86$124.861,469,800
2017-12-12$127.29$127.29814,000
2017-12-11$128.20$128.20929,200
2017-12-08$130.89$130.89745,300
2017-12-07$128.73$128.73891,200
2017-12-06$124.57$124.57974,200
2017-12-05$127.00$127.00869,500
2017-12-04$128.01$128.011,306,100
2017-12-01$137.31$137.311,240,500
2017-11-30$134.54$134.545,436,800
2017-11-29$128.14$128.141,404,000
2017-11-28$129.74$129.74961,300
2017-11-27$131.44$131.441,089,900
2017-11-24$132.85$132.85783,100
2017-11-22$132.33$132.33771,800
2017-11-21$132.01$132.01992,400
2017-11-20$128.15$128.15916,600
2017-11-17$127.51$127.51901,000
2017-11-16$126.38$126.381,234,400
2017-11-15$125.95$125.951,885,400
2017-11-14$130.32$130.323,301,800
2017-11-13$129.11$129.111,466,900
2017-11-10$139.98$139.981,387,000
2017-11-09$137.68$137.681,366,700
2017-11-08$132.33$132.331,649,000
2017-11-07$129.50$129.50905,400
2017-11-06$130.50$130.501,097,700
2017-11-03$132.36$132.361,486,400
2017-11-02$133.59$133.594,013,100
2017-11-01$121.09$121.09884,700
2017-10-31$121.84$121.84875,100
2017-10-30$122.96$122.961,103,900
2017-10-27$119.92$119.921,459,100
2017-10-26$114.49$114.49874,400
2017-10-25$117.40$117.40785,800
2017-10-24$117.07$117.071,025,000
2017-10-23$115.57$115.57809,800
2017-10-20$114.70$114.701,310,100
2017-10-19$115.63$115.631,220,400
2017-10-18$117.55$117.551,044,800
2017-10-17$118.70$118.701,049,600
2017-10-16$121.89$121.891,041,200
2017-10-13$123.00$123.00843,700
2017-10-12$124.20$124.20889,600
2017-10-11$124.86$124.86810,000
2017-10-10$122.29$122.29987,800
2017-10-09$121.50$121.50692,000
2017-10-06$122.65$122.65803,200
2017-10-05$121.39$121.39763,800
2017-10-04$120.16$120.16626,700
2017-10-03$119.90$119.901,223,800
2017-10-02$122.31$122.312,336,300
2017-09-29$117.49$117.49814,000
2017-09-28$118.27$118.271,650,300
2017-09-27$113.46$113.461,100,300
2017-09-26$112.06$112.061,566,000
2017-09-25$117.04$117.042,091,500
2017-09-22$113.80$113.802,339,600
2017-09-21$112.92$112.924,537,200
2017-09-20$113.84$113.8418,362,400
2017-09-19$75.04$75.04641,400
2017-09-18$76.00$76.001,133,900
2017-09-15$76.21$76.211,348,500
2017-09-14$78.15$78.15724,100
2017-09-13$80.57$80.57788,000
2017-09-12$79.49$79.49842,600
2017-09-11$78.68$78.681,170,100
2017-09-08$73.69$73.691,279,400
2017-09-07$72.53$72.536,025,300
2017-09-06$86.02$86.02576,600
2017-09-05$86.80$86.80648,600
2017-09-01$88.91$88.91807,100
2017-08-31$85.73$85.73834,000
2017-08-30$83.14$83.14678,300
2017-08-29$82.52$82.52665,300
2017-08-28$83.20$83.20778,800
2017-08-25$83.32$83.32427,500
2017-08-24$83.99$83.99815,700
2017-08-23$84.81$84.81443,400
2017-08-22$85.80$85.80537,900
2017-08-21$84.68$84.68665,000
2017-08-18$81.42$81.42574,700
2017-08-17$80.28$80.28499,500
2017-08-16$81.35$81.35586,300
2017-08-15$80.37$80.37499,700
2017-08-14$79.64$79.64617,500
2017-08-11$78.22$78.22847,500
2017-08-10$75.94$75.942,078,100
2017-08-09$80.52$80.52751,300
2017-08-08$81.44$81.44732,000
2017-08-07$82.93$82.93449,200
2017-08-04$82.44$82.44453,200
2017-08-03$81.50$81.50403,200
2017-08-02$83.55$83.55537,600
2017-08-01$81.15$81.15527,400
2017-07-31$82.74$82.74645,600
2017-07-28$82.63$82.63532,100
2017-07-27$79.70$79.701,011,400
2017-07-26$81.57$81.57479,300
2017-07-25$81.01$81.01718,700
2017-07-24$83.54$83.54723,700
2017-07-21$82.02$82.02878,700
2017-07-20$80.51$80.51733,700
2017-07-19$78.46$78.46493,200
2017-07-18$78.12$78.12506,200
2017-07-17$77.75$77.75728,100
2017-07-14$78.74$78.74692,800
2017-07-13$79.97$79.97915,000
2017-07-12$78.90$78.90668,000
2017-07-11$79.00$79.00998,200
2017-07-10$79.41$79.412,020,600
2017-07-07$84.08$84.08602,300
2017-07-06$82.97$82.971,296,000
2017-07-05$85.71$85.711,076,100
2017-07-03$81.70$81.70376,000
2017-06-30$79.76$79.76705,500
2017-06-29$79.03$79.03998,800
2017-06-28$79.97$79.971,082,100
2017-06-27$79.83$79.831,401,200
2017-06-26$82.92$82.92974,700
2017-06-23$85.21$85.21773,700
2017-06-22$83.96$83.96959,700
2017-06-21$84.52$84.521,492,600
2017-06-20$81.38$81.381,032,900
2017-06-19$79.05$79.051,306,900
2017-06-16$76.07$76.071,264,500
2017-06-15$75.35$75.35833,800
2017-06-14$74.80$74.80645,600
2017-06-13$74.31$74.31752,500
2017-06-12$72.82$72.82685,100
2017-06-09$72.83$72.83806,700
2017-06-08$73.46$73.46677,600
2017-06-07$71.60$71.601,225,500
2017-06-06$71.28$71.281,228,900
2017-06-05$69.93$69.93826,700
2017-06-02$71.99$71.991,273,000
2017-06-01$69.70$69.701,428,600
2017-05-31$65.46$65.461,190,400
2017-05-30$64.09$64.091,048,600
2017-05-26$65.80$65.801,356,100
2017-05-25$69.50$69.501,009,500
2017-05-24$69.97$69.974,761,500
2017-05-23$74.87$74.87948,800
2017-05-22$73.93$73.93995,600
2017-05-19$71.67$71.67838,700
2017-05-18$71.09$71.09936,600
2017-05-17$70.13$70.132,167,200
2017-05-16$72.01$72.012,506,000
2017-05-15$66.00$66.006,375,000
2017-05-12$56.77$56.77656,400
2017-05-11$55.36$55.36503,300
2017-05-10$55.70$55.70967,000
2017-05-09$54.02$54.02603,400
2017-05-08$52.61$52.61829,900
2017-05-05$55.07$55.071,026,200
2017-05-04$54.87$54.87725,200
2017-05-03$55.00$55.00682,400
2017-05-02$53.07$53.07818,700
2017-05-01$55.36$55.36427,700
2017-04-28$53.60$53.60489,400
2017-04-27$52.77$52.77455,200
2017-04-26$54.02$54.02808,200
2017-04-25$51.35$51.35475,400
2017-04-24$50.30$50.30447,500
2017-04-21$49.51$49.51664,500
2017-04-20$50.46$50.46692,300
2017-04-19$49.56$49.56653,100
2017-04-18$49.73$49.73762,100
2017-04-17$50.95$50.95766,600
2017-04-13$49.85$49.85987,900
2017-04-12$49.18$49.18738,800
2017-04-11$48.85$48.85706,900
2017-04-10$49.25$49.25498,300
2017-04-07$48.51$48.51621,700
2017-04-06$47.81$47.81666,800
2017-04-05$47.75$47.75863,300
2017-04-04$50.16$50.16486,700
2017-04-03$50.44$50.44620,300
2017-03-31$51.25$51.25806,800
2017-03-30$51.25$51.25582,700
2017-03-29$52.83$52.83926,700
2017-03-28$52.08$52.08574,900
2017-03-27$52.32$52.32986,500
2017-03-24$52.47$52.47936,200
2017-03-23$53.18$53.18845,100
2017-03-22$53.25$53.251,138,800
2017-03-21$54.21$54.211,663,600
2017-03-20$59.71$59.711,847,000
2017-03-17$55.25$55.254,863,000
2017-03-16$54.48$54.481,248,600
2017-03-15$54.27$54.271,296,200
2017-03-14$51.53$51.531,080,700
2017-03-13$50.48$50.48637,100
2017-03-10$50.73$50.731,066,600
2017-03-09$51.48$51.48811,700
2017-03-08$52.24$52.24932,300
2017-03-07$49.94$49.94656,500
2017-03-06$50.36$50.36680,000
2017-03-03$51.44$51.44682,200
2017-03-02$50.52$50.52997,500
2017-03-01$51.30$51.30994,600
2017-02-28$51.64$51.641,341,700
2017-02-27$51.31$51.311,305,400
2017-02-24$46.62$46.62642,700
2017-02-23$46.25$46.25606,800
2017-02-22$45.95$45.95632,100
2017-02-21$46.86$46.86728,000
2017-02-17$48.28$48.28798,900
2017-02-16$47.02$47.02870,100
2017-02-15$47.09$47.09561,100
2017-02-14$46.11$46.11479,900
2017-02-13$45.61$45.61832,700
2017-02-10$45.57$45.57645,900
2017-02-09$44.96$44.962,262,800
2017-02-08$40.63$40.631,188,900
2017-02-07$40.46$40.46976,100
2017-02-06$43.01$43.01702,100
2017-02-03$42.76$42.761,292,000
2017-02-02$41.46$41.461,032,600
2017-02-01$40.45$40.45795,000
2017-01-31$39.99$39.991,023,200
2017-01-30$36.88$36.88662,200
2017-01-27$38.09$38.09629,400
2017-01-26$37.11$37.11538,300
2017-01-25$37.83$37.83511,100
2017-01-24$37.62$37.62774,300
2017-01-23$38.16$38.16821,700
2017-01-20$38.96$38.96817,800
2017-01-19$39.08$39.081,579,600
2017-01-18$38.51$38.511,187,100
2017-01-17$38.22$38.221,398,900
2017-01-13$41.60$41.601,030,700
2017-01-12$41.84$41.84660,000
2017-01-11$41.25$41.251,504,200
2017-01-10$44.71$44.71775,500
2017-01-09$43.50$43.501,849,200
2017-01-06$42.23$42.23684,900
2017-01-05$41.35$41.35573,200
2017-01-04$41.29$41.291,089,300
2017-01-03$38.64$38.64819,300