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Alkermes plc. (ALKS) stock

ALKSNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Nov 3, 2026Score 5/30213% above fair value
$46.98−0.91 (-1.90%)

Close on Nov 12, 2026Market cap $7.88BP/E 123.6Yield –

Price history

Alkermes share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Nov 12, 2026
$46.98
-1.90% on the day
52-week range
$27.00 – $55.67
-15.6% from the high
Change over 52 weeks
+49.6%
From $31.41 on Nov 12, 2025
Average volume
1.84M
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Nov 12, 2026$46.00$48.30$45.27$46.98-1.90%3,125,557
Nov 11, 2026$46.47$48.00$46.08$47.89+3.06%1,031,864
Nov 10, 2026$45.67$46.57$45.35$46.47+0.65%1,035,990
Nov 9, 2026$46.10$47.07$45.59$46.17+0.59%1,709,146
Nov 6, 2026$44.19$45.94$44.07$45.90+3.05%1,673,442
Nov 5, 2026$45.96$46.55$44.42$44.54-2.94%1,943,983
Nov 4, 2026$46.23$47.01$44.58$45.89+0.44%2,179,091
Nov 3, 2026$46.17$47.43$45.22$45.69+1.78%2,328,628
Nov 2, 2026$45.59$45.94$44.49$44.89-0.99%2,162,296
Oct 30, 2026$45.67$46.35$44.78$45.34-0.07%1,113,062
Oct 29, 2026$46.01$46.38$45.18$45.37+0.27%1,427,247
Oct 28, 2026$43.66$45.29$43.45$45.25+2.10%1,439,723
Oct 27, 2026$44.34$45.02$43.99$44.32-0.27%1,322,009
Oct 26, 2026$44.11$44.84$43.60$44.44+1.86%1,176,641
Oct 23, 2026$44.15$44.15$43.15$43.63-1.24%884,580
Oct 22, 2026$44.00$44.69$43.00$44.18+1.61%1,833,983
Oct 21, 2026$44.12$44.58$43.44$43.48-1.43%1,808,280
Oct 20, 2026$43.38$45.20$43.21$44.11+2.65%2,201,607
Oct 19, 2026$41.46$43.64$41.35$42.97+4.25%2,792,913
Oct 16, 2026$40.18$41.57$39.71$41.22+2.79%3,408,302
Oct 15, 2026$39.74$40.74$39.42$40.10+2.61%1,976,642
Oct 14, 2026$39.59$40.65$38.98$39.08-1.64%1,551,180
Oct 13, 2026$40.26$40.35$39.67$39.73-1.32%1,068,285
Oct 12, 2026$40.67$40.87$40.00$40.26-0.86%2,240,209
Oct 9, 2026$40.18$40.87$39.99$40.61+1.25%1,626,971
Oct 8, 2026$41.10$41.26$39.11$40.11-3.22%3,251,030
Oct 7, 2026$41.28$42.06$41.17$41.45-0.49%1,816,098
Oct 6, 2026$42.64$42.71$41.24$41.65-2.60%1,545,961
Oct 5, 2026$42.07$43.22$41.67$42.76+2.42%3,125,272
Oct 2, 2026$41.03$41.96$40.32$41.75+2.98%2,423,455

Seasonality

ALKS return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average5.1%1.4%-0.2%-4.4%3.1%4.8%-2.0%0.0%-3.5%-1.7%1.1%1.3%
Months up7 of 105 of 106 of 103 of 107 of 107 of 104 of 104 of 103 of 104 of 106 of 105 of 9
202621.1%-11.2%17.5%-4.7%25.2%24.2%-6.5%-4.1%-13.8%11.9%3.6%
20259.6%8.9%-3.8%-12.9%6.4%-6.5%-7.4%9.4%3.6%2.3%-3.6%-5.4%
2024-2.5%9.8%-8.8%-9.3%-4.6%3.0%13.4%4.1%-1.6%-8.2%12.9%-0.9%
20239.6%-6.6%5.4%1.3%1.3%8.2%-6.5%-0.3%-4.0%-13.6%-0.2%14.9%
20229.6%-2.5%5.8%9.7%3.5%-0.2%-14.1%-7.5%-5.7%1.7%9.2%5.4%
20215.2%-9.3%-1.9%17.8%3.0%8.2%5.5%20.8%-1.3%-1.8%-27.6%6.1%
2020-14.7%19.7%-30.8%-4.9%19.3%18.6%-7.2%-8.2%0.2%-1.9%12.4%9.3%
201911.4%1.2%9.7%-16.9%-29.0%4.6%2.8%-9.4%-7.0%0.1%7.6%-2.9%
20184.5%-0.2%1.5%-23.6%6.6%-12.8%6.5%2.3%-5.4%-3.8%-10.8%-19.0%
2017-2.6%4.4%3.5%-0.4%-0.8%0.4%-6.1%-6.7%0.1%-4.1%7.2%4.7%

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