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 — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$14.09$14.09415,800
2004-12-30$14.42$14.42229,600
2004-12-29$14.40$14.40477,000
2004-12-28$14.49$14.49434,100
2004-12-27$14.40$14.40445,800
2004-12-23$14.76$14.76170,600
2004-12-22$14.60$14.60682,300
2004-12-21$14.57$14.57475,700
2004-12-20$14.59$14.59623,800
2004-12-17$15.04$15.04558,000
2004-12-16$14.84$14.84543,900
2004-12-15$15.31$15.311,599,200
2004-12-14$14.65$14.65780,500
2004-12-13$14.58$14.58679,000
2004-12-10$14.01$14.01487,500
2004-12-09$14.08$14.08725,400
2004-12-08$13.61$13.61808,700
2004-12-07$13.57$13.57645,700
2004-12-06$13.87$13.87632,800
2004-12-03$14.03$14.03642,500
2004-12-02$14.31$14.31623,100
2004-12-01$14.32$14.32939,700
2004-11-30$13.79$13.79642,400
2004-11-29$13.91$13.91620,800
2004-11-26$13.63$13.63236,000
2004-11-24$13.87$13.87333,000
2004-11-23$13.68$13.68540,900
2004-11-22$13.74$13.74895,800
2004-11-19$14.09$14.09481,100
2004-11-18$14.50$14.50266,000
2004-11-17$14.55$14.55624,000
2004-11-16$14.44$14.44719,900
2004-11-15$14.40$14.40504,300
2004-11-12$14.38$14.38584,400
2004-11-11$14.50$14.50536,500
2004-11-10$14.47$14.47762,800
2004-11-09$14.41$14.41801,200
2004-11-08$14.01$14.011,100,600
2004-11-05$13.51$13.511,603,600
2004-11-04$13.00$13.00509,100
2004-11-03$12.77$12.77896,900
2004-11-02$12.22$12.221,078,400
2004-11-01$12.12$12.12633,400
2004-10-29$12.37$12.37506,500
2004-10-28$12.32$12.32566,000
2004-10-27$12.27$12.27614,200
2004-10-26$11.81$11.81451,300
2004-10-25$11.53$11.53729,700
2004-10-22$11.52$11.52446,100
2004-10-21$11.78$11.78452,800
2004-10-20$11.74$11.74340,500
2004-10-19$11.52$11.52390,000
2004-10-18$11.65$11.65332,000
2004-10-15$11.38$11.38410,100
2004-10-14$11.31$11.31223,300
2004-10-13$11.46$11.461,023,300
2004-10-12$11.98$11.98588,600
2004-10-11$11.85$11.85304,100
2004-10-08$11.50$11.50377,900
2004-10-07$11.82$11.82353,300
2004-10-06$12.19$12.19420,600
2004-10-05$12.00$12.00473,900
2004-10-04$12.30$12.30659,900
2004-10-01$12.21$12.21621,100
2004-09-30$11.54$11.54560,500
2004-09-29$11.33$11.33668,800
2004-09-28$11.63$11.63447,100
2004-09-27$11.48$11.48468,700
2004-09-24$11.96$11.96409,900
2004-09-23$11.66$11.66440,200
2004-09-22$11.76$11.76630,600
2004-09-21$12.19$12.19478,400
2004-09-20$12.07$12.07774,700
2004-09-17$12.13$12.13448,400
2004-09-16$12.22$12.22487,100
2004-09-15$11.77$11.77614,000
2004-09-14$12.13$12.13678,100
2004-09-13$11.90$11.90748,200
2004-09-10$11.64$11.64579,500
2004-09-09$11.41$11.41506,600
2004-09-08$11.11$11.11593,700
2004-09-07$11.24$11.24902,800
2004-09-03$10.98$10.98273,800
2004-09-02$11.27$11.27351,300
2004-09-01$10.96$10.96519,100
2004-08-31$10.66$10.66377,600
2004-08-30$10.67$10.67534,600
2004-08-27$11.19$11.19592,800
2004-08-26$10.71$10.71471,000
2004-08-25$10.71$10.71643,000
2004-08-24$10.66$10.66881,400
2004-08-23$10.91$10.91614,000
2004-08-20$11.34$11.34781,200
2004-08-19$10.75$10.75892,500
2004-08-18$11.10$11.101,049,100
2004-08-17$10.96$10.96957,100
2004-08-16$10.95$10.951,102,900
2004-08-13$9.91$9.911,002,100
2004-08-12$10.32$10.32969,400
2004-08-11$10.75$10.751,546,100
2004-08-10$10.33$10.333,470,200
2004-08-09$8.51$8.51918,000
2004-08-06$8.91$8.912,281,600
2004-08-05$9.83$9.831,594,800
2004-08-04$10.20$10.201,158,700
2004-08-03$10.75$10.75822,900
2004-08-02$10.74$10.74704,600
2004-07-30$10.79$10.79776,600
2004-07-29$10.40$10.40553,600
2004-07-28$10.29$10.291,009,500
2004-07-27$10.32$10.321,454,200
2004-07-26$10.46$10.461,979,300
2004-07-23$10.91$10.911,089,400
2004-07-22$11.74$11.74798,700
2004-07-21$11.53$11.53589,800
2004-07-20$12.44$12.44707,700
2004-07-19$12.05$12.051,334,900
2004-07-16$12.27$12.27461,100
2004-07-15$12.68$12.68447,100
2004-07-14$12.63$12.63903,400
2004-07-13$12.24$12.24553,400
2004-07-12$12.26$12.26616,100
2004-07-09$12.33$12.33354,100
2004-07-08$12.24$12.24627,700
2004-07-07$12.75$12.75560,300
2004-07-06$12.97$12.97623,400
2004-07-02$13.41$13.41240,000
2004-07-01$13.43$13.43690,300
2004-06-30$13.60$13.60622,700
2004-06-29$13.65$13.65838,000
2004-06-28$13.29$13.29648,000
2004-06-25$13.65$13.651,345,500
2004-06-24$13.32$13.32633,900
2004-06-23$13.53$13.531,216,200
2004-06-22$12.78$12.781,475,000
2004-06-21$12.72$12.72829,300
2004-06-18$12.73$12.73514,500
2004-06-17$12.96$12.96599,500
2004-06-16$13.00$13.00615,400
2004-06-15$13.02$13.021,196,100
2004-06-14$13.01$13.011,501,800
2004-06-10$12.90$12.901,396,000
2004-06-09$13.29$13.291,203,300
2004-06-08$13.79$13.79493,700
2004-06-07$14.04$14.04522,000
2004-06-04$14.00$14.00620,800
2004-06-03$13.85$13.85842,900
2004-06-02$14.34$14.341,285,500
2004-06-01$14.69$14.69757,200
2004-05-28$14.40$14.40803,100
2004-05-27$14.18$14.18616,700
2004-05-26$14.30$14.30680,300
2004-05-25$14.45$14.45896,400
2004-05-24$14.17$14.17460,500
2004-05-21$14.02$14.02689,800
2004-05-20$13.82$13.82852,500
2004-05-19$14.04$14.04762,400
2004-05-18$14.04$14.04959,800
2004-05-17$13.93$13.931,406,500
2004-05-14$14.13$14.134,000,100
2004-05-13$13.96$13.961,050,800
2004-05-12$14.02$14.021,928,900
2004-05-11$13.66$13.661,199,600
2004-05-10$13.56$13.561,996,000
2004-05-07$13.84$13.841,524,300
2004-05-06$14.96$14.96683,700
2004-05-05$15.39$15.39460,400
2004-05-04$15.18$15.181,612,900
2004-05-03$15.42$15.421,389,300
2004-04-30$15.34$15.341,242,200
2004-04-29$15.30$15.30752,100
2004-04-28$15.49$15.49990,200
2004-04-27$16.18$16.181,309,200
2004-04-26$16.00$16.001,379,000
2004-04-23$15.74$15.741,110,000
2004-04-22$15.92$15.92702,000
2004-04-21$15.64$15.64754,500
2004-04-20$15.35$15.35787,100
2004-04-19$15.64$15.64633,100
2004-04-16$15.20$15.20620,800
2004-04-15$15.37$15.37777,400
2004-04-14$15.26$15.261,190,500
2004-04-13$15.46$15.461,281,500
2004-04-12$15.81$15.811,807,800
2004-04-08$16.48$16.48840,600
2004-04-07$16.31$16.312,908,800
2004-04-06$15.87$15.872,266,100
2004-04-05$16.86$16.861,550,700
2004-04-02$16.59$16.591,351,400
2004-04-01$15.97$15.97967,700
2004-03-31$15.99$15.992,673,700
2004-03-30$15.68$15.681,282,400
2004-03-29$14.96$14.96971,100
2004-03-26$14.53$14.53957,600
2004-03-25$14.90$14.90945,600
2004-03-24$14.35$14.35538,200
2004-03-23$14.57$14.571,240,600
2004-03-22$14.10$14.10693,500
2004-03-19$14.67$14.67437,800
2004-03-18$14.73$14.73526,200
2004-03-17$14.73$14.73625,600
2004-03-16$14.23$14.23924,800
2004-03-15$14.20$14.201,589,200
2004-03-12$14.98$14.98969,600
2004-03-11$14.45$14.451,571,800
2004-03-10$14.62$14.621,188,300
2004-03-09$14.81$14.81825,900
2004-03-08$15.15$15.151,039,400
2004-03-05$14.79$14.79375,100
2004-03-04$14.80$14.801,108,300
2004-03-03$14.05$14.05705,600
2004-03-02$14.16$14.16556,100
2004-03-01$14.41$14.41827,000
2004-02-27$14.24$14.241,186,500
2004-02-26$13.61$13.61707,000
2004-02-25$13.55$13.55516,300
2004-02-24$13.43$13.43770,600
2004-02-23$13.36$13.36934,300
2004-02-20$13.85$13.851,346,800
2004-02-19$13.79$13.79945,500
2004-02-18$14.11$14.11648,200
2004-02-17$14.31$14.31821,600
2004-02-13$14.61$14.61981,700
2004-02-12$14.92$14.921,670,300
2004-02-11$14.30$14.301,284,100
2004-02-10$14.34$14.342,255,600
2004-02-09$14.89$14.89929,500
2004-02-06$15.08$15.081,113,900
2004-02-05$14.59$14.59753,000
2004-02-04$14.68$14.681,059,600
2004-02-03$15.09$15.09519,000
2004-02-02$15.10$15.10640,400
2004-01-30$14.91$14.91605,100
2004-01-29$14.68$14.68648,100
2004-01-28$14.69$14.69653,100
2004-01-27$14.87$14.87551,100
2004-01-26$15.00$15.00789,700
2004-01-23$14.92$14.921,026,700
2004-01-22$14.14$14.141,414,800
2004-01-21$14.79$14.791,268,200
2004-01-20$14.26$14.261,327,200
2004-01-16$14.63$14.631,110,300
2004-01-15$13.96$13.96505,700
2004-01-14$13.76$13.761,373,500
2004-01-13$13.57$13.571,154,900
2004-01-12$14.12$14.12593,800
2004-01-09$13.78$13.78744,400
2004-01-08$13.84$13.84690,000
2004-01-07$14.05$14.05616,900
2004-01-06$13.60$13.60591,100
2004-01-05$13.85$13.85812,900
2004-01-02$13.97$13.97700,400