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 — 2016

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2016-12-30$55.58$55.58460,600——
2016-12-29$55.30$55.30367,200——
2016-12-28$55.19$55.19421,100——
2016-12-27$56.77$56.77400,900——
2016-12-23$57.99$57.99540,200——
2016-12-22$56.31$56.31383,300——
2016-12-21$56.85$56.85791,200——
2016-12-20$56.75$56.751,061,900——
2016-12-19$55.97$55.97595,400——
2016-12-16$56.51$56.51926,400——
2016-12-15$57.58$57.58841,200——
2016-12-14$55.03$55.03821,200——
2016-12-13$54.44$54.44793,500——
2016-12-12$55.14$55.14701,500——
2016-12-09$55.47$55.47630,600——
2016-12-08$55.75$55.75903,400——
2016-12-07$55.55$55.551,509,600——
2016-12-06$58.27$58.27713,600——
2016-12-05$56.21$56.211,144,900——
2016-12-02$56.25$56.25892,800——
2016-12-01$54.89$54.891,141,800——
2016-11-30$56.83$56.831,390,800——
2016-11-29$58.07$58.07914,600——
2016-11-28$57.77$57.77568,600——
2016-11-25$58.89$58.89308,900——
2016-11-23$59.00$59.00603,000——
2016-11-22$58.34$58.34950,800——
2016-11-21$59.20$59.20943,500——
2016-11-18$58.44$58.44630,300——
2016-11-17$59.50$59.50761,600——
2016-11-16$58.42$58.42850,500——
2016-11-15$59.40$59.40797,000——
2016-11-14$59.02$59.021,476,500——
2016-11-11$58.51$58.511,182,300——
2016-11-10$59.07$59.071,272,500——
2016-11-09$58.01$58.012,694,100——
2016-11-08$53.85$53.851,116,800——
2016-11-07$53.97$53.971,119,800——
2016-11-04$51.96$51.961,080,900——
2016-11-03$51.13$51.131,462,000——
2016-11-02$52.28$52.281,611,200——
2016-11-01$51.88$51.881,558,400——
2016-10-31$50.41$50.41899,500——
2016-10-28$51.01$51.011,080,300——
2016-10-27$51.72$51.721,214,400——
2016-10-26$53.24$53.241,814,900——
2016-10-25$54.46$54.461,935,300——
2016-10-24$56.69$56.692,199,900——
2016-10-21$55.62$55.6214,323,100——
2016-10-20$43.51$43.513,093,200——
2016-10-19$42.86$42.86644,600——
2016-10-18$43.50$43.50564,600——
2016-10-17$42.37$42.37476,600——
2016-10-14$42.30$42.30926,400——
2016-10-13$43.87$43.87638,200——
2016-10-12$43.65$43.65751,800——
2016-10-11$44.67$44.67602,000——
2016-10-10$46.49$46.49576,700——
2016-10-07$45.71$45.71696,400——
2016-10-06$45.21$45.21702,100——
2016-10-05$46.43$46.43662,800——
2016-10-04$46.15$46.15624,600——
2016-10-03$46.94$46.94657,200——
2016-09-30$47.03$47.03701,100——
2016-09-29$46.71$46.71766,500——
2016-09-28$48.81$48.81672,200——
2016-09-27$49.79$49.791,042,600——
2016-09-26$48.58$48.58643,900——
2016-09-23$49.58$49.581,053,300——
2016-09-22$51.00$51.00560,700——
2016-09-21$50.48$50.48688,200——
2016-09-20$49.77$49.771,015,800——
2016-09-19$49.69$49.69740,300——
2016-09-16$49.52$49.522,104,200——
2016-09-15$48.34$48.34589,800——
2016-09-14$47.65$47.651,047,900——
2016-09-13$47.16$47.16608,100——
2016-09-12$47.74$47.74710,800——
2016-09-09$45.38$45.38886,600——
2016-09-08$47.42$47.42730,000——
2016-09-07$47.60$47.60856,000——
2016-09-06$46.72$46.721,173,600——
2016-09-02$45.12$45.12976,400——
2016-09-01$44.74$44.74691,600——
2016-08-31$43.77$43.77522,900——
2016-08-30$43.96$43.96779,600——
2016-08-29$44.47$44.47408,700——
2016-08-26$44.50$44.50589,100——
2016-08-25$44.17$44.171,142,700——
2016-08-24$44.45$44.451,065,200——
2016-08-23$46.50$46.50926,600——
2016-08-22$45.35$45.35686,100——
2016-08-19$44.39$44.39662,800——
2016-08-18$45.25$45.25964,300——
2016-08-17$45.19$45.19659,400——
2016-08-16$46.77$46.77519,000——
2016-08-15$48.03$48.03613,800——
2016-08-12$46.67$46.67362,000——
2016-08-11$46.81$46.81604,300——
2016-08-10$46.12$46.12672,300——
2016-08-09$47.36$47.36424,200——
2016-08-08$47.20$47.20640,900——
2016-08-05$48.59$48.59522,700——
2016-08-04$48.91$48.91408,400——
2016-08-03$49.55$49.55638,400——
2016-08-02$48.65$48.65938,900——
2016-08-01$49.56$49.56888,900——
2016-07-29$49.90$49.901,435,700——
2016-07-28$48.13$48.131,713,000——
2016-07-27$51.78$51.781,225,700——
2016-07-26$51.01$51.01838,500——
2016-07-25$50.12$50.12653,000——
2016-07-22$49.80$49.80467,800——
2016-07-21$48.97$48.97810,700——
2016-07-20$48.61$48.61837,700——
2016-07-19$47.27$47.27579,300——
2016-07-18$47.86$47.86651,600——
2016-07-15$47.58$47.58872,000——
2016-07-14$47.58$47.58735,400——
2016-07-13$47.86$47.86819,300——
2016-07-12$49.05$49.05980,900——
2016-07-11$49.19$49.191,166,500——
2016-07-08$48.95$48.95924,900——
2016-07-07$48.04$48.041,260,500——
2016-07-06$45.99$45.99543,900——
2016-07-05$45.11$45.11519,100——
2016-07-01$45.52$45.52789,000——
2016-06-30$43.22$43.221,420,400——
2016-06-29$43.49$43.491,045,600——
2016-06-28$42.60$42.601,078,800——
2016-06-27$40.01$40.011,040,200——
2016-06-24$42.28$42.281,577,500——
2016-06-23$43.75$43.75800,100——
2016-06-22$43.04$43.04795,100——
2016-06-21$41.85$41.85925,900——
2016-06-20$41.89$41.89738,700——
2016-06-17$41.37$41.37872,700——
2016-06-16$42.16$42.16509,000——
2016-06-15$42.24$42.24589,900——
2016-06-14$41.99$41.99597,300——
2016-06-13$42.47$42.47963,900——
2016-06-10$42.65$42.651,177,800——
2016-06-09$43.82$43.82703,700——
2016-06-08$45.60$45.60450,700——
2016-06-07$45.89$45.89694,600——
2016-06-06$45.84$45.841,146,500——
2016-06-03$45.06$45.061,172,700——
2016-06-02$47.00$47.001,319,000——
2016-06-01$45.84$45.841,170,700——
2016-05-31$46.41$46.411,471,900——
2016-05-27$46.13$46.131,285,600——
2016-05-26$44.29$44.291,302,300——
2016-05-25$43.58$43.58913,000——
2016-05-24$43.42$43.421,054,500——
2016-05-23$42.88$42.88939,600——
2016-05-20$42.98$42.982,430,700——
2016-05-19$39.26$39.26687,000——
2016-05-18$40.23$40.23589,500——
2016-05-17$39.98$39.98983,100——
2016-05-16$40.06$40.061,843,000——
2016-05-13$37.45$37.45689,300——
2016-05-12$37.00$37.00953,200——
2016-05-11$37.93$37.93948,200——
2016-05-10$39.61$39.61989,300——
2016-05-09$39.76$39.76851,500——
2016-05-06$38.25$38.25818,600——
2016-05-05$37.99$37.99824,500——
2016-05-04$37.62$37.621,059,100——
2016-05-03$39.20$39.201,768,000——
2016-05-02$40.36$40.36846,000——
2016-04-29$39.75$39.751,091,500——
2016-04-28$41.29$41.291,711,100——
2016-04-27$40.57$40.572,137,900——
2016-04-26$42.09$42.091,300,600——
2016-04-25$42.72$42.721,093,400——
2016-04-22$42.67$42.671,242,600——
2016-04-21$43.18$43.181,568,300——
2016-04-20$41.94$41.941,924,000——
2016-04-19$40.45$40.451,070,800——
2016-04-18$39.72$39.72836,000——
2016-04-15$39.63$39.631,360,900——
2016-04-14$39.43$39.43883,900——
2016-04-13$38.91$38.911,324,700——
2016-04-12$38.05$38.052,025,800——
2016-04-11$38.31$38.311,515,200——
2016-04-08$38.40$38.401,534,300——
2016-04-07$38.03$38.031,997,200——
2016-04-06$38.32$38.321,678,300——
2016-04-05$36.39$36.391,710,400——
2016-04-04$36.35$36.351,359,600——
2016-04-01$35.67$35.671,528,700——
2016-03-31$34.19$34.191,943,000——
2016-03-30$32.21$32.211,240,600——
2016-03-29$32.36$32.361,353,300——
2016-03-28$30.21$30.211,066,000——
2016-03-24$31.54$31.541,328,900——
2016-03-23$30.96$30.961,807,800——
2016-03-22$32.55$32.551,674,500——
2016-03-21$30.71$30.711,575,700——
2016-03-18$30.20$30.202,613,600——
2016-03-17$29.99$29.992,407,600——
2016-03-16$29.05$29.052,365,800——
2016-03-15$30.36$30.361,852,100——
2016-03-14$32.29$32.291,034,100——
2016-03-11$32.91$32.911,119,900——
2016-03-10$31.54$31.541,237,200——
2016-03-09$31.78$31.781,703,300——
2016-03-08$32.41$32.411,675,900——
2016-03-07$33.93$33.932,136,000——
2016-03-04$32.58$32.581,952,200——
2016-03-03$32.91$32.911,578,500——
2016-03-02$35.19$35.191,920,700——
2016-03-01$34.41$34.411,237,300——
2016-02-29$32.27$32.271,536,000——
2016-02-26$33.61$33.612,249,700——
2016-02-25$33.97$33.972,055,700——
2016-02-24$34.07$34.071,565,000——
2016-02-23$34.10$34.101,375,100——
2016-02-22$34.01$34.011,338,300——
2016-02-19$33.57$33.571,157,900——
2016-02-18$32.85$32.851,570,100——
2016-02-17$34.89$34.891,533,800——
2016-02-16$33.31$33.311,391,800——
2016-02-12$32.45$32.452,303,300——
2016-02-11$31.19$31.192,575,200——
2016-02-10$29.83$29.831,670,400——
2016-02-09$29.06$29.061,783,400——
2016-02-08$29.45$29.451,593,900——
2016-02-05$32.17$32.173,070,800——
2016-02-04$33.31$33.311,492,000——
2016-02-03$33.36$33.362,089,500——
2016-02-02$33.08$33.082,541,000——
2016-02-01$32.75$32.752,378,600——
2016-01-29$32.01$32.012,950,000——
2016-01-28$30.64$30.641,353,200——
2016-01-27$32.37$32.371,764,300——
2016-01-26$34.76$34.761,306,700——
2016-01-25$35.94$35.942,492,800——
2016-01-22$36.16$36.165,519,700——
2016-01-21$33.69$33.6912,467,300——
2016-01-20$60.42$60.421,399,200——
2016-01-19$59.53$59.531,122,300——
2016-01-15$62.36$62.362,338,800——
2016-01-14$64.66$64.66949,800——
2016-01-13$63.85$63.851,134,200——
2016-01-12$68.00$68.001,724,100——
2016-01-11$68.65$68.651,845,700——
2016-01-08$71.24$71.24715,200——
2016-01-07$72.04$72.041,407,000——
2016-01-06$75.05$75.052,182,300——
2016-01-05$75.27$75.271,121,100——
2016-01-04$74.83$74.831,909,300——