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.

View year

Historical Stock Price — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$28.76$28.761,264,400
2024-12-30$28.78$28.781,010,800
2024-12-27$29.55$29.55844,900
2024-12-26$29.81$29.81771,400
2024-12-24$29.65$29.65417,100
2024-12-23$29.50$29.501,337,400
2024-12-20$29.71$29.714,636,200
2024-12-19$29.97$29.971,457,100
2024-12-18$30.07$30.073,001,600
2024-12-17$30.75$30.752,272,200
2024-12-16$30.67$30.672,337,800
2024-12-13$30.51$30.511,483,100
2024-12-12$30.50$30.50918,300
2024-12-11$30.94$30.941,382,600
2024-12-10$30.60$30.601,552,600
2024-12-09$31.31$31.311,712,100
2024-12-06$31.46$31.461,485,700
2024-12-05$31.19$31.191,747,900
2024-12-04$31.06$31.061,819,200
2024-12-03$29.48$29.481,038,700
2024-12-02$29.37$29.371,069,100
2024-11-29$29.02$29.02550,100
2024-11-27$29.32$29.32943,200
2024-11-26$29.25$29.251,462,700
2024-11-25$29.36$29.362,028,200
2024-11-22$28.78$28.782,150,800
2024-11-21$27.70$27.701,873,600
2024-11-20$27.91$27.911,696,000
2024-11-19$27.48$27.481,370,400
2024-11-18$27.55$27.551,520,900
2024-11-15$28.19$28.192,053,800
2024-11-14$28.35$28.351,144,000
2024-11-13$29.24$29.241,523,300
2024-11-12$29.23$29.231,545,700
2024-11-11$30.08$30.081,875,300
2024-11-08$28.86$28.861,837,200
2024-11-07$28.97$28.971,754,400
2024-11-06$29.29$29.292,272,400
2024-11-05$28.37$28.372,472,300
2024-11-04$26.59$26.591,100,200
2024-11-01$26.47$26.471,057,100
2024-10-31$25.70$25.701,216,300
2024-10-30$26.31$26.311,149,300
2024-10-29$26.44$26.441,530,500
2024-10-28$26.53$26.531,956,000
2024-10-25$26.09$26.093,206,900
2024-10-24$26.85$26.857,003,100
2024-10-23$27.85$27.851,496,700
2024-10-22$28.10$28.101,202,400
2024-10-21$27.71$27.711,297,600
2024-10-18$28.27$28.271,262,700
2024-10-17$28.33$28.331,476,600
2024-10-16$28.09$28.09818,300
2024-10-15$28.00$28.001,479,900
2024-10-14$29.05$29.052,029,700
2024-10-11$28.91$28.911,794,300
2024-10-10$27.37$27.371,975,300
2024-10-09$26.59$26.591,844,200
2024-10-08$27.11$27.111,458,400
2024-10-07$27.79$27.792,019,400
2024-10-04$28.97$28.971,124,300
2024-10-03$28.37$28.371,573,200
2024-10-02$29.00$29.001,496,400
2024-10-01$28.83$28.831,596,400
2024-09-30$27.99$27.991,108,200
2024-09-27$27.53$27.531,117,300
2024-09-26$27.17$27.172,138,100
2024-09-25$26.43$26.432,082,800
2024-09-24$27.37$27.371,846,700
2024-09-23$28.10$28.101,530,300
2024-09-20$28.55$28.556,613,600
2024-09-19$28.35$28.351,127,300
2024-09-18$27.83$27.831,401,900
2024-09-17$27.74$27.741,847,500
2024-09-16$27.83$27.831,087,100
2024-09-13$27.66$27.661,075,800
2024-09-12$26.56$26.561,545,000
2024-09-11$26.57$26.571,496,000
2024-09-10$26.99$26.991,968,000
2024-09-09$26.82$26.821,519,200
2024-09-06$26.86$26.862,141,000
2024-09-05$26.86$26.861,658,100
2024-09-04$28.26$28.26950,000
2024-09-03$28.12$28.121,373,700
2024-08-30$28.45$28.451,069,400
2024-08-29$28.35$28.351,482,800
2024-08-28$28.07$28.07950,700
2024-08-27$28.19$28.19825,300
2024-08-26$28.51$28.51890,300
2024-08-23$27.95$27.951,300,300
2024-08-22$27.99$27.991,120,300
2024-08-21$28.26$28.261,692,900
2024-08-20$28.16$28.16855,800
2024-08-19$28.23$28.231,459,300
2024-08-16$27.25$27.251,508,700
2024-08-15$26.98$26.981,599,400
2024-08-14$26.31$26.311,043,400
2024-08-13$26.43$26.431,341,900
2024-08-12$25.94$25.941,294,000
2024-08-09$26.07$26.071,479,500
2024-08-08$26.75$26.751,699,100
2024-08-07$26.44$26.442,020,800
2024-08-06$27.50$27.501,239,600
2024-08-05$27.85$27.853,708,200
2024-08-02$27.72$27.722,292,300
2024-08-01$26.86$26.862,268,000
2024-07-31$27.32$27.321,904,000
2024-07-30$27.63$27.631,502,300
2024-07-29$27.92$27.921,474,900
2024-07-26$27.88$27.882,101,800
2024-07-25$28.04$28.042,940,500
2024-07-24$26.51$26.515,462,800
2024-07-23$25.00$25.002,599,400
2024-07-22$24.80$24.802,640,100
2024-07-19$24.83$24.831,552,200
2024-07-18$24.65$24.652,195,900
2024-07-17$24.61$24.611,372,900
2024-07-16$24.60$24.603,038,700
2024-07-15$23.37$23.371,740,900
2024-07-12$23.57$23.571,451,300
2024-07-11$23.31$23.311,859,700
2024-07-10$23.01$23.012,855,900
2024-07-09$24.04$24.041,751,800
2024-07-08$24.37$24.371,245,200
2024-07-05$24.29$24.29789,500
2024-07-03$24.23$24.23508,400
2024-07-02$24.19$24.191,343,900
2024-07-01$24.39$24.391,242,400
2024-06-28$24.10$24.103,405,800
2024-06-27$24.29$24.291,038,700
2024-06-26$24.57$24.571,587,300
2024-06-25$24.18$24.181,399,200
2024-06-24$24.63$24.631,610,900
2024-06-21$24.95$24.955,697,800
2024-06-20$25.05$25.052,033,000
2024-06-18$24.42$24.421,400,200
2024-06-17$25.01$25.011,813,600
2024-06-14$24.50$24.501,659,000
2024-06-13$24.81$24.811,543,400
2024-06-12$24.84$24.843,595,000
2024-06-11$24.79$24.791,733,200
2024-06-10$24.19$24.191,452,000
2024-06-07$23.91$23.911,303,600
2024-06-06$24.16$24.162,034,200
2024-06-05$24.19$24.191,631,500
2024-06-04$23.65$23.652,823,100
2024-06-03$24.06$24.062,008,800
2024-05-31$23.40$23.403,159,600
2024-05-30$23.21$23.211,478,600
2024-05-29$23.29$23.292,075,800
2024-05-28$23.75$23.751,483,300
2024-05-24$24.02$24.021,868,800
2024-05-23$24.00$24.001,534,800
2024-05-22$24.21$24.211,600,900
2024-05-21$24.34$24.341,174,500
2024-05-20$24.38$24.381,611,700
2024-05-17$24.15$24.151,449,500
2024-05-16$24.46$24.461,536,200
2024-05-15$24.14$24.142,321,600
2024-05-14$24.49$24.491,266,600
2024-05-13$24.71$24.711,290,900
2024-05-10$24.05$24.051,001,600
2024-05-09$24.26$24.261,013,500
2024-05-08$24.10$24.101,096,600
2024-05-07$24.59$24.591,719,000
2024-05-06$24.10$24.101,591,900
2024-05-03$24.05$24.051,347,100
2024-05-02$23.86$23.861,987,900
2024-05-01$24.01$24.012,844,000
2024-04-30$24.54$24.542,168,600
2024-04-29$24.88$24.881,709,200
2024-04-26$24.68$24.681,016,700
2024-04-25$24.44$24.441,313,700
2024-04-24$24.65$24.651,737,000
2024-04-23$24.26$24.261,245,800
2024-04-22$24.07$24.071,708,300
2024-04-19$23.85$23.852,414,800
2024-04-18$23.76$23.761,798,800
2024-04-17$24.01$24.012,257,000
2024-04-16$23.77$23.771,579,900
2024-04-15$24.02$24.022,713,300
2024-04-12$24.42$24.421,895,000
2024-04-11$24.99$24.992,076,500
2024-04-10$26.14$26.142,030,400
2024-04-09$26.73$26.734,113,500
2024-04-08$25.93$25.931,221,300
2024-04-05$26.12$26.121,780,100
2024-04-04$25.81$25.811,260,100
2024-04-03$26.33$26.331,266,500
2024-04-02$26.77$26.772,384,500
2024-04-01$27.24$27.241,306,700
2024-03-28$27.07$27.071,234,900
2024-03-27$27.25$27.251,464,400
2024-03-26$26.78$26.781,345,200
2024-03-25$27.31$27.31907,600
2024-03-22$27.29$27.291,898,100
2024-03-21$26.97$26.972,037,900
2024-03-20$27.71$27.711,930,100
2024-03-19$27.70$27.701,653,500
2024-03-18$27.53$27.532,263,300
2024-03-15$28.75$28.7511,607,000
2024-03-14$28.88$28.881,547,700
2024-03-13$28.79$28.791,625,100
2024-03-12$28.47$28.471,534,700
2024-03-11$28.60$28.601,405,900
2024-03-08$29.25$29.251,124,200
2024-03-07$29.45$29.451,966,800
2024-03-06$28.94$28.941,284,100
2024-03-05$29.76$29.761,373,500
2024-03-04$29.92$29.921,474,400
2024-03-01$30.24$30.241,753,900
2024-02-29$29.69$29.692,089,100
2024-02-28$29.80$29.802,008,100
2024-02-27$29.70$29.702,294,300
2024-02-26$30.04$30.042,173,200
2024-02-23$29.57$29.571,868,400
2024-02-22$28.91$28.913,073,000
2024-02-21$29.18$29.182,233,400
2024-02-20$30.39$30.392,461,800
2024-02-16$32.18$32.183,746,900
2024-02-15$32.56$32.565,469,800
2024-02-14$27.99$27.992,293,900
2024-02-13$27.23$27.232,292,500
2024-02-12$28.52$28.522,357,400
2024-02-09$27.32$27.321,879,500
2024-02-08$26.77$26.771,071,600
2024-02-07$26.70$26.701,308,600
2024-02-06$27.04$27.041,175,900
2024-02-05$26.40$26.40822,100
2024-02-02$26.74$26.741,012,800
2024-02-01$26.94$26.941,716,300
2024-01-31$27.05$27.051,453,500
2024-01-30$27.41$27.411,382,900
2024-01-29$28.31$28.311,292,500
2024-01-26$27.74$27.74950,100
2024-01-25$28.02$28.021,246,700
2024-01-24$28.12$28.121,005,200
2024-01-23$28.54$28.541,159,600
2024-01-22$28.46$28.461,124,200
2024-01-19$27.90$27.902,834,000
2024-01-18$27.76$27.761,345,200
2024-01-17$27.69$27.691,230,200
2024-01-16$27.76$27.761,217,400
2024-01-12$28.20$28.201,457,000
2024-01-11$27.94$27.941,570,200
2024-01-10$28.15$28.151,355,200
2024-01-09$28.98$28.981,244,300
2024-01-08$29.60$29.602,586,800
2024-01-05$28.56$28.561,373,400
2024-01-04$28.63$28.631,206,600
2024-01-03$28.67$28.671,717,600
2024-01-02$28.62$28.622,200,000