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 — 1995

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1995-12-29$3.97$3.9796,400
1995-12-28$3.94$3.9475,400
1995-12-27$4.00$4.00194,600
1995-12-26$3.94$3.94371,400
1995-12-22$3.69$3.69330,000
1995-12-21$3.31$3.31334,800
1995-12-20$3.06$3.06313,400
1995-12-19$3.19$3.1939,800
1995-12-18$3.00$3.0059,000
1995-12-15$3.13$3.1340,200
1995-12-14$3.38$3.3822,400
1995-12-13$3.25$3.2517,600
1995-12-12$3.25$3.25137,200
1995-12-11$3.38$3.3831,200
1995-12-08$3.56$3.5678,000
1995-12-07$3.41$3.4161,000
1995-12-06$3.38$3.38142,600
1995-12-05$3.13$3.1346,200
1995-12-04$3.00$3.00109,400
1995-12-01$3.00$3.0019,000
1995-11-30$2.94$2.9490,000
1995-11-29$2.94$2.94118,800
1995-11-28$3.13$3.1353,000
1995-11-27$3.25$3.259,000
1995-11-24$3.25$3.254,000
1995-11-22$3.28$3.28184,000
1995-11-21$3.25$3.25254,200
1995-11-20$3.31$3.3137,400
1995-11-17$3.44$3.4437,800
1995-11-16$3.44$3.44247,600
1995-11-15$3.44$3.44218,600
1995-11-14$3.28$3.28125,800
1995-11-13$3.25$3.2514,400
1995-11-10$3.31$3.3166,800
1995-11-09$3.25$3.259,400
1995-11-08$3.25$3.2568,400
1995-11-07$3.25$3.2546,600
1995-11-06$3.31$3.3155,800
1995-11-03$3.31$3.3125,000
1995-11-02$3.25$3.2536,800
1995-11-01$3.25$3.2531,800
1995-10-31$3.25$3.2529,200
1995-10-30$3.25$3.25187,200
1995-10-27$3.25$3.254,400
1995-10-26$3.31$3.311,800
1995-10-25$3.19$3.1930,600
1995-10-24$3.19$3.1922,600
1995-10-23$3.25$3.2512,200
1995-10-20$3.38$3.3864,800
1995-10-19$3.19$3.196,000
1995-10-18$3.19$3.19164,000
1995-10-17$3.31$3.3139,400
1995-10-16$3.38$3.3848,400
1995-10-13$3.25$3.2555,800
1995-10-12$3.06$3.0670,600
1995-10-11$2.94$2.9464,200
1995-10-10$3.00$3.00198,400
1995-10-09$2.94$2.94172,400
1995-10-06$3.00$3.00135,200
1995-10-05$3.00$3.00218,600
1995-10-04$3.13$3.1369,000
1995-10-03$3.13$3.13396,600
1995-10-02$3.19$3.19146,000
1995-09-29$3.25$3.25226,600
1995-09-28$3.38$3.3847,200
1995-09-27$3.25$3.25383,000
1995-09-26$3.31$3.31205,000
1995-09-25$3.50$3.5039,400
1995-09-22$3.31$3.3161,000
1995-09-21$3.50$3.50671,200
1995-09-20$3.44$3.441,379,000
1995-09-19$3.63$3.6360,600
1995-09-18$3.56$3.56211,600
1995-09-15$3.69$3.6924,200
1995-09-14$3.75$3.7593,600
1995-09-13$3.63$3.6356,600
1995-09-12$3.56$3.56128,800
1995-09-11$3.63$3.6331,600
1995-09-08$3.63$3.6336,400
1995-09-07$3.56$3.5663,600
1995-09-06$3.63$3.63221,200
1995-09-05$3.75$3.7576,800
1995-09-01$3.69$3.69118,000
1995-08-31$3.44$3.44128,000
1995-08-30$3.44$3.4473,200
1995-08-29$3.34$3.34128,200
1995-08-28$3.31$3.3122,800
1995-08-25$3.44$3.4476,400
1995-08-24$3.50$3.50362,600
1995-08-23$3.94$3.9444,800
1995-08-22$3.94$3.94369,000
1995-08-21$3.88$3.8883,000
1995-08-18$3.88$3.8871,400
1995-08-17$4.00$4.00185,800
1995-08-16$3.63$3.63140,600
1995-08-15$3.94$3.9471,200
1995-08-14$3.94$3.9464,200
1995-08-11$3.81$3.81203,800
1995-08-10$3.94$3.94331,800
1995-08-09$4.19$4.19399,000
1995-08-08$4.13$4.13294,600
1995-08-07$4.00$4.00100,600
1995-08-04$3.94$3.94231,400
1995-08-03$3.88$3.88221,400
1995-08-02$3.81$3.81859,400
1995-08-01$4.00$4.00384,200
1995-07-31$4.31$4.31630,200
1995-07-28$4.19$4.19917,400
1995-07-27$3.69$3.691,031,200
1995-07-26$2.75$2.7588,600
1995-07-25$2.88$2.8874,600
1995-07-24$2.69$2.6946,600
1995-07-21$2.56$2.56163,600
1995-07-20$2.63$2.6372,400
1995-07-19$2.69$2.6940,600
1995-07-18$2.88$2.8898,400
1995-07-17$3.13$3.13212,200
1995-07-14$3.00$3.00338,800
1995-07-13$3.09$3.09418,000
1995-07-12$2.63$2.63671,400
1995-07-11$2.38$2.38128,600
1995-07-10$2.44$2.44149,800
1995-07-07$2.44$2.44265,600
1995-07-06$2.31$2.31447,400
1995-07-05$2.13$2.13153,600
1995-07-03$1.94$1.948,400
1995-06-30$1.94$1.946,400
1995-06-29$1.88$1.8820,800
1995-06-28$1.81$1.8117,000
1995-06-27$1.88$1.8889,600
1995-06-26$1.69$1.6970,600
1995-06-23$1.81$1.8136,800
1995-06-22$1.81$1.8158,800
1995-06-21$1.75$1.75168,000
1995-06-20$1.88$1.8877,600
1995-06-19$2.06$2.0662,600
1995-06-16$2.13$2.13370,000
1995-06-15$1.94$1.94344,800
1995-06-14$1.88$1.88608,400
1995-06-13$1.63$1.63173,200
1995-06-12$1.50$1.5022,200
1995-06-09$1.56$1.5615,200
1995-06-08$1.56$1.5687,600
1995-06-07$1.44$1.4412,800
1995-06-06$1.44$1.4418,600
1995-06-05$1.44$1.4423,600
1995-06-02$1.56$1.567,200
1995-06-01$1.50$1.5019,600
1995-05-31$1.53$1.533,400
1995-05-30$1.56$1.56114,200
1995-05-26$1.59$1.594,400
1995-05-25$1.50$1.5011,600
1995-05-24$1.56$1.5662,600
1995-05-23$1.56$1.56269,800
1995-05-22$1.63$1.6363,000
1995-05-19$1.56$1.5698,400
1995-05-18$1.44$1.4448,800
1995-05-17$1.47$1.4782,200
1995-05-16$1.56$1.5615,400
1995-05-15$1.56$1.564,400
1995-05-12$1.50$1.509,400
1995-05-11$1.44$1.447,000
1995-05-10$1.50$1.50119,400
1995-05-09$1.50$1.50142,800
1995-05-08$1.56$1.5619,000
1995-05-05$1.56$1.5619,600
1995-05-04$1.56$1.56174,400
1995-05-03$1.44$1.4413,600
1995-05-02$1.50$1.5076,400
1995-05-01$1.44$1.4412,000
1995-04-28$1.44$1.4413,200
1995-04-27$1.44$1.44106,000
1995-04-26$1.44$1.445,800
1995-04-25$1.47$1.4715,800
1995-04-24$1.50$1.5057,200
1995-04-21$1.38$1.388,000
1995-04-20$1.38$1.383,400
1995-04-19$1.38$1.3818,800
1995-04-18$1.50$1.507,200
1995-04-17$1.44$1.44187,200
1995-04-13$1.38$1.3881,400
1995-04-12$1.44$1.4433,000
1995-04-11$1.38$1.38102,800
1995-04-10$1.38$1.3820,600
1995-04-07$1.44$1.447,200
1995-04-06$1.56$1.569,200
1995-04-05$1.56$1.563,000
1995-04-04$1.50$1.5031,200
1995-04-03$1.44$1.4478,600
1995-03-31$1.38$1.3878,000
1995-03-30$1.50$1.5045,800
1995-03-29$1.38$1.3813,800
1995-03-28$1.41$1.416,400
1995-03-27$1.50$1.5014,800
1995-03-24$1.44$1.44105,000
1995-03-23$1.44$1.44102,200
1995-03-22$1.38$1.3863,600
1995-03-21$1.44$1.4412,800
1995-03-20$1.44$1.4413,200
1995-03-17$1.38$1.3815,200
1995-03-16$1.31$1.31107,000
1995-03-15$1.31$1.3113,200
1995-03-14$1.38$1.3850,400
1995-03-13$1.38$1.38123,000
1995-03-10$1.38$1.3888,200
1995-03-09$1.31$1.3131,800
1995-03-08$1.44$1.44155,800
1995-03-07$1.31$1.3124,800
1995-03-06$1.41$1.4126,200
1995-03-03$1.38$1.3834,200
1995-03-02$1.41$1.41146,400
1995-03-01$1.38$1.38215,600
1995-02-28$1.45$1.4512,200
1995-02-27$1.44$1.4475,200
1995-02-24$1.44$1.4498,000
1995-02-23$1.44$1.44192,400
1995-02-22$1.50$1.5033,000
1995-02-21$1.50$1.5068,400
1995-02-17$1.44$1.44111,800
1995-02-16$1.56$1.56126,400
1995-02-15$1.50$1.50113,000
1995-02-14$1.44$1.44172,200
1995-02-13$1.31$1.3185,800
1995-02-10$1.31$1.31106,600
1995-02-09$1.31$1.3124,600
1995-02-08$1.38$1.38117,000
1995-02-07$1.25$1.256,200
1995-02-06$1.34$1.3417,200
1995-02-03$1.31$1.3190,600
1995-02-02$1.28$1.2811,800
1995-02-01$1.31$1.3162,400
1995-01-31$1.38$1.3842,400
1995-01-30$1.31$1.3132,000
1995-01-27$1.34$1.34148,800
1995-01-26$1.31$1.311,858,000
1995-01-25$1.25$1.2542,800
1995-01-24$1.25$1.2544,800
1995-01-23$1.38$1.3819,400
1995-01-20$1.38$1.3823,400
1995-01-19$1.38$1.3823,400
1995-01-18$1.44$1.4422,200
1995-01-17$1.38$1.3891,800
1995-01-16$1.31$1.3112,400
1995-01-13$1.31$1.3132,600
1995-01-12$1.28$1.2852,600
1995-01-11$1.34$1.34170,400
1995-01-10$1.38$1.38250,800
1995-01-09$1.06$1.06266,400
1995-01-06$1.06$1.0676,200
1995-01-05$1.00$1.00252,200
1995-01-04$1.00$1.00166,000
1995-01-03$1.03$1.03120,200