NASDAQ:ALKS | Historical Stock Price | Alkermes plc.

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
1991-07-16 to 2026-09-04
Data captured

Stock Price Chart

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

$1.19$2.80$6.60$15.56$36.69$86.491991-07-162026-08-27

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

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Historical Stock Price — 2007

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2007-12-31$15.59$15.59713,200
2007-12-28$15.87$15.87443,400
2007-12-27$15.86$15.86736,300
2007-12-26$16.25$16.25532,700
2007-12-24$16.24$16.24425,900
2007-12-21$15.86$15.861,975,600
2007-12-20$15.36$15.36846,100
2007-12-19$14.88$14.881,360,000
2007-12-18$14.22$14.221,777,700
2007-12-17$14.45$14.45680,500
2007-12-14$14.71$14.71793,000
2007-12-13$15.17$15.17693,800
2007-12-12$15.02$15.02728,400
2007-12-11$14.57$14.57625,800
2007-12-10$15.05$15.05502,000
2007-12-07$14.88$14.88716,100
2007-12-06$15.14$15.141,009,500
2007-12-05$14.60$14.60669,900
2007-12-04$14.61$14.611,270,600
2007-12-03$14.34$14.34938,700
2007-11-30$14.26$14.261,003,700
2007-11-29$14.32$14.32793,100
2007-11-28$14.33$14.331,141,500
2007-11-27$14.06$14.06855,800
2007-11-26$13.66$13.661,578,700
2007-11-23$13.62$13.62755,800
2007-11-21$13.08$13.082,717,300
2007-11-20$12.76$12.761,573,000
2007-11-19$12.85$12.851,560,800
2007-11-16$13.41$13.411,214,100
2007-11-15$13.32$13.32961,400
2007-11-14$13.55$13.551,876,200
2007-11-13$13.60$13.60668,400
2007-11-12$13.31$13.31910,100
2007-11-09$13.34$13.341,263,400
2007-11-08$13.50$13.501,363,500
2007-11-07$13.53$13.531,686,800
2007-11-06$14.31$14.311,270,200
2007-11-05$14.30$14.301,451,000
2007-11-02$14.19$14.197,059,200
2007-11-01$15.31$15.312,211,100
2007-10-31$16.20$16.204,432,700
2007-10-30$16.66$16.66420,100
2007-10-29$16.88$16.88923,000
2007-10-26$17.22$17.22692,500
2007-10-25$16.98$16.98978,100
2007-10-24$16.46$16.461,194,700
2007-10-23$16.72$16.72695,500
2007-10-22$16.51$16.511,044,500
2007-10-19$16.23$16.23730,000
2007-10-18$16.80$16.80650,500
2007-10-17$17.04$17.041,137,500
2007-10-16$16.74$16.742,922,300
2007-10-15$17.47$17.47799,400
2007-10-12$17.72$17.721,070,500
2007-10-11$17.76$17.761,023,300
2007-10-10$18.56$18.56715,100
2007-10-09$18.39$18.39756,300
2007-10-08$18.23$18.231,009,200
2007-10-05$18.38$18.381,073,400
2007-10-04$18.13$18.131,046,300
2007-10-03$18.40$18.40866,600
2007-10-02$18.34$18.34465,200
2007-10-01$18.38$18.38725,600
2007-09-28$18.40$18.401,585,300
2007-09-27$17.70$17.70586,900
2007-09-26$17.92$17.921,506,300
2007-09-25$16.68$16.68778,700
2007-09-24$16.76$16.76614,900
2007-09-21$16.99$16.99947,100
2007-09-20$16.91$16.91690,600
2007-09-19$17.00$17.001,422,800
2007-09-18$16.73$16.73788,200
2007-09-17$16.04$16.04517,200
2007-09-14$16.16$16.16430,700
2007-09-13$16.17$16.17666,300
2007-09-12$16.26$16.26532,400
2007-09-11$16.54$16.54583,300
2007-09-10$16.48$16.48720,200
2007-09-07$16.47$16.47627,700
2007-09-06$16.80$16.80492,000
2007-09-05$16.83$16.83611,500
2007-09-04$17.20$17.201,144,800
2007-08-31$16.85$16.85463,900
2007-08-30$16.70$16.70590,300
2007-08-29$16.69$16.69485,500
2007-08-28$16.38$16.38592,900
2007-08-27$16.51$16.51414,900
2007-08-24$17.00$17.00358,800
2007-08-23$16.93$16.93725,300
2007-08-22$17.24$17.24495,600
2007-08-21$17.13$17.13594,200
2007-08-20$17.50$17.50498,900
2007-08-17$17.41$17.411,864,300
2007-08-16$17.33$17.331,658,600
2007-08-15$16.56$16.561,427,400
2007-08-14$16.66$16.66787,400
2007-08-13$16.58$16.581,314,800
2007-08-10$16.99$16.992,458,100
2007-08-09$17.99$17.991,986,200
2007-08-08$17.90$17.902,926,400
2007-08-07$16.64$16.641,588,400
2007-08-06$16.74$16.742,570,000
2007-08-03$16.63$16.635,229,000
2007-08-02$14.78$14.781,022,100
2007-08-01$14.72$14.721,552,500
2007-07-31$14.24$14.241,466,200
2007-07-30$14.46$14.462,439,900
2007-07-27$14.39$14.391,446,100
2007-07-26$14.67$14.671,543,600
2007-07-25$15.02$15.022,309,600
2007-07-24$14.91$14.912,988,300
2007-07-23$14.25$14.25815,700
2007-07-20$14.43$14.43977,500
2007-07-19$14.72$14.72753,700
2007-07-18$14.48$14.481,069,600
2007-07-17$14.44$14.441,119,700
2007-07-16$14.76$14.76781,600
2007-07-13$14.99$14.99594,300
2007-07-12$14.80$14.801,001,500
2007-07-11$14.39$14.391,095,300
2007-07-10$14.59$14.591,000,100
2007-07-09$14.84$14.84722,600
2007-07-06$14.91$14.91668,600
2007-07-05$14.75$14.75719,500
2007-07-03$14.79$14.79298,300
2007-07-02$14.90$14.90644,600
2007-06-29$14.60$14.601,001,900
2007-06-28$14.83$14.831,056,100
2007-06-27$14.89$14.891,002,400
2007-06-26$14.63$14.631,011,400
2007-06-25$14.71$14.71836,000
2007-06-22$14.78$14.781,014,600
2007-06-21$15.28$15.28807,300
2007-06-20$15.12$15.121,298,600
2007-06-19$15.07$15.071,044,100
2007-06-18$15.10$15.10698,900
2007-06-15$15.24$15.241,295,900
2007-06-14$15.06$15.061,246,500
2007-06-13$14.61$14.611,234,300
2007-06-12$14.43$14.431,933,200
2007-06-11$14.97$14.971,215,200
2007-06-08$14.97$14.971,744,300
2007-06-07$15.21$15.211,653,800
2007-06-06$15.41$15.411,000,700
2007-06-05$15.70$15.701,131,100
2007-06-04$15.79$15.791,037,000
2007-06-01$15.98$15.981,296,400
2007-05-31$16.06$16.061,790,000
2007-05-30$16.28$16.283,120,900
2007-05-29$17.10$17.10841,400
2007-05-25$17.02$17.02521,000
2007-05-24$16.96$16.96891,800
2007-05-23$17.47$17.471,157,300
2007-05-22$17.69$17.69646,600
2007-05-21$17.49$17.491,060,800
2007-05-18$17.08$17.08671,000
2007-05-17$16.81$16.811,093,400
2007-05-16$16.76$16.76901,800
2007-05-15$16.53$16.531,031,800
2007-05-14$16.45$16.45641,000
2007-05-11$16.55$16.55670,200
2007-05-10$16.24$16.24989,200
2007-05-09$16.62$16.62523,800
2007-05-08$16.73$16.731,019,100
2007-05-07$16.80$16.80638,800
2007-05-04$17.06$17.06627,000
2007-05-03$17.06$17.061,046,100
2007-05-02$16.95$16.951,119,600
2007-05-01$16.57$16.57900,400
2007-04-30$16.43$16.431,424,800
2007-04-27$16.79$16.79672,000
2007-04-26$16.95$16.95511,500
2007-04-25$16.96$16.96725,000
2007-04-24$16.75$16.751,314,200
2007-04-23$17.17$17.171,289,700
2007-04-20$16.96$16.961,498,600
2007-04-19$16.48$16.481,046,800
2007-04-18$16.69$16.69979,600
2007-04-17$16.80$16.802,041,100
2007-04-16$16.66$16.662,363,500
2007-04-13$15.47$15.471,205,900
2007-04-12$15.41$15.411,245,000
2007-04-11$15.45$15.45791,400
2007-04-10$15.56$15.56502,800
2007-04-09$15.70$15.70477,400
2007-04-05$15.80$15.80792,200
2007-04-04$15.61$15.61658,100
2007-04-03$15.68$15.68813,600
2007-04-02$15.35$15.351,083,000
2007-03-30$15.44$15.44975,400
2007-03-29$15.27$15.27966,200
2007-03-28$15.50$15.501,078,100
2007-03-27$15.35$15.351,151,900
2007-03-26$15.39$15.39538,600
2007-03-23$15.58$15.58663,900
2007-03-22$15.64$15.64582,600
2007-03-21$15.75$15.75855,300
2007-03-20$15.50$15.50381,000
2007-03-19$15.38$15.38817,700
2007-03-16$15.05$15.051,084,900
2007-03-15$15.29$15.29678,900
2007-03-14$15.06$15.061,352,600
2007-03-13$15.21$15.211,143,700
2007-03-12$15.77$15.77807,300
2007-03-09$15.68$15.681,007,100
2007-03-08$15.63$15.63924,000
2007-03-07$15.75$15.75921,000
2007-03-06$15.81$15.811,220,300
2007-03-05$15.31$15.311,427,200
2007-03-02$15.38$15.382,656,600
2007-03-01$16.18$16.181,365,100
2007-02-28$16.40$16.401,196,600
2007-02-27$16.74$16.742,103,100
2007-02-26$17.45$17.45867,500
2007-02-23$17.42$17.42969,900
2007-02-22$17.83$17.831,252,800
2007-02-21$17.82$17.82976,700
2007-02-20$17.66$17.661,529,000
2007-02-16$17.62$17.621,528,400
2007-02-15$17.07$17.071,053,800
2007-02-14$17.01$17.011,490,400
2007-02-13$16.89$16.891,142,700
2007-02-12$16.47$16.471,134,900
2007-02-09$16.84$16.842,509,400
2007-02-08$17.01$17.015,552,300
2007-02-07$15.00$15.001,720,700
2007-02-06$14.85$14.851,663,400
2007-02-05$15.00$15.001,008,200
2007-02-02$14.81$14.81949,100
2007-02-01$14.93$14.931,470,000
2007-01-31$14.92$14.921,240,700
2007-01-30$15.00$15.001,468,600
2007-01-29$15.04$15.041,369,200
2007-01-26$15.19$15.191,793,700
2007-01-25$14.99$14.992,143,600
2007-01-24$14.58$14.582,352,400
2007-01-23$14.66$14.661,413,100
2007-01-22$14.59$14.591,789,200
2007-01-19$15.00$15.00967,400
2007-01-18$14.85$14.851,524,200
2007-01-17$14.96$14.961,586,600
2007-01-16$15.04$15.042,034,100
2007-01-12$15.37$15.374,413,700
2007-01-11$14.17$14.171,189,700
2007-01-10$14.16$14.161,866,700
2007-01-09$13.92$13.922,435,100
2007-01-08$13.80$13.802,515,900
2007-01-05$13.58$13.581,333,000
2007-01-04$13.58$13.581,874,100
2007-01-03$13.09$13.091,979,400