Alkermes plc (ALKS)
NASDAQ: ALKS · Real-Time Price · USD
40.61
+0.50 (1.25%)
At close: Oct 9, 2026, 4:00 PM EDT
40.65
+0.04 (0.10%)
After-hours: Oct 9, 2026, 7:30 PM EDT
Alkermes Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | 40.18 | 40.87 | 39.99 | 40.61 | 40.61 | 1.25% | 1,626,913 |
| Oct 8, 2026 | 41.10 | 41.26 | 39.11 | 40.11 | 40.11 | -3.22% | 3,237,353 |
| Oct 7, 2026 | 41.28 | 42.06 | 41.17 | 41.45 | 41.45 | -0.49% | 1,759,222 |
| Oct 6, 2026 | 42.64 | 42.71 | 41.24 | 41.65 | 41.65 | -2.60% | 1,521,402 |
| Oct 5, 2026 | 42.07 | 43.22 | 41.67 | 42.76 | 42.76 | 2.42% | 2,968,767 |
| Oct 2, 2026 | 41.03 | 41.96 | 40.32 | 41.75 | 41.75 | 2.98% | 2,423,455 |
| Oct 1, 2026 | 40.00 | 41.41 | 39.99 | 40.54 | 40.54 | 0.05% | 2,626,368 |
| Sep 30, 2026 | 40.94 | 40.94 | 39.92 | 40.52 | 40.52 | -0.69% | 2,527,215 |
| Sep 29, 2026 | 39.84 | 40.90 | 39.84 | 40.80 | 40.80 | 1.62% | 2,686,816 |
| Sep 28, 2026 | 40.71 | 40.97 | 40.04 | 40.15 | 40.15 | -1.71% | 2,356,249 |
| Sep 25, 2026 | 40.94 | 41.12 | 40.49 | 40.85 | 40.85 | 0.15% | 2,588,014 |
| Sep 24, 2026 | 42.55 | 42.55 | 40.59 | 40.79 | 40.79 | -3.18% | 2,843,413 |
| Sep 23, 2026 | 43.20 | 43.62 | 41.23 | 42.13 | 42.13 | -2.68% | 2,475,683 |
| Sep 22, 2026 | 44.39 | 44.53 | 43.08 | 43.29 | 43.29 | -2.01% | 2,310,733 |
| Sep 21, 2026 | 44.27 | 44.79 | 43.11 | 44.18 | 44.18 | 1.82% | 3,732,232 |
| Sep 18, 2026 | 46.51 | 46.53 | 43.27 | 43.39 | 43.39 | -7.11% | 6,935,802 |
| Sep 17, 2026 | 47.10 | 47.40 | 46.41 | 46.71 | 46.71 | 1.39% | 1,423,622 |
| Sep 16, 2026 | 46.64 | 47.26 | 45.79 | 46.07 | 46.07 | 0.09% | 1,854,651 |
| Sep 15, 2026 | 45.73 | 46.14 | 44.63 | 46.03 | 46.03 | 0.44% | 2,151,164 |
| Sep 14, 2026 | 46.60 | 46.60 | 45.66 | 45.83 | 45.83 | -0.30% | 2,029,453 |
| Sep 11, 2026 | 46.75 | 46.75 | 45.73 | 45.97 | 45.97 | -0.30% | 1,283,128 |
| Sep 10, 2026 | 44.98 | 46.11 | 44.75 | 46.11 | 46.11 | 1.56% | 1,193,903 |
| Sep 9, 2026 | 45.24 | 45.61 | 44.72 | 45.40 | 45.40 | -0.20% | 1,442,769 |
| Sep 8, 2026 | 45.20 | 46.53 | 44.63 | 45.49 | 45.49 | -1.32% | 1,355,832 |
| Sep 4, 2026 | 46.14 | 46.93 | 45.80 | 46.10 | 46.10 | -1.66% | 1,064,034 |
| Sep 3, 2026 | 48.01 | 48.29 | 46.71 | 46.88 | 46.88 | -1.76% | 974,512 |
| Sep 2, 2026 | 47.70 | 48.74 | 46.68 | 47.72 | 47.72 | 1.10% | 1,566,413 |
| Sep 1, 2026 | 47.00 | 47.34 | 46.65 | 47.20 | 47.20 | 0.45% | 1,351,261 |
| Aug 31, 2026 | 47.25 | 47.56 | 46.46 | 46.99 | 46.99 | -0.89% | 1,440,889 |
| Aug 28, 2026 | 48.82 | 48.82 | 47.25 | 47.41 | 47.41 | -3.05% | 1,429,292 |
| Aug 27, 2026 | 48.72 | 49.33 | 48.10 | 48.90 | 48.90 | -0.53% | 2,119,395 |
| Aug 26, 2026 | 49.23 | 49.35 | 48.46 | 49.16 | 49.16 | -0.10% | 660,876 |
| Aug 25, 2026 | 48.94 | 49.58 | 48.87 | 49.21 | 49.21 | 0.70% | 1,127,442 |
| Aug 24, 2026 | 48.05 | 49.03 | 47.64 | 48.87 | 48.87 | 1.12% | 1,296,669 |
| Aug 21, 2026 | 48.05 | 48.67 | 47.33 | 48.33 | 48.33 | 0.65% | 939,640 |
| Aug 20, 2026 | 49.37 | 49.86 | 47.93 | 48.02 | 48.02 | -4.30% | 1,635,207 |
| Aug 19, 2026 | 51.26 | 51.29 | 50.08 | 50.18 | 50.18 | 1.41% | 1,544,219 |
| Aug 18, 2026 | 50.10 | 50.42 | 49.46 | 49.48 | 49.48 | -0.74% | 970,918 |
| Aug 17, 2026 | 48.90 | 50.08 | 48.62 | 49.85 | 49.85 | 1.61% | 764,040 |
| Aug 14, 2026 | 49.37 | 50.02 | 48.65 | 49.06 | 49.06 | -0.79% | 1,267,828 |
| Aug 13, 2026 | 51.66 | 51.66 | 49.21 | 49.45 | 49.45 | -1.65% | 1,546,632 |
| Aug 12, 2026 | 49.22 | 50.53 | 48.50 | 50.28 | 50.28 | 2.17% | 1,315,646 |
| Aug 11, 2026 | 49.92 | 50.14 | 48.97 | 49.21 | 49.21 | -0.38% | 1,373,601 |
| Aug 10, 2026 | 48.39 | 49.81 | 48.39 | 49.40 | 49.40 | 0.47% | 1,511,275 |
| Aug 7, 2026 | 49.05 | 49.90 | 48.67 | 49.17 | 49.17 | 1.65% | 1,110,968 |
| Aug 6, 2026 | 49.61 | 50.40 | 48.21 | 48.37 | 48.37 | -2.50% | 1,569,088 |
| Aug 5, 2026 | 50.20 | 50.85 | 49.23 | 49.61 | 49.61 | -0.12% | 1,706,769 |
| Aug 4, 2026 | 49.73 | 50.36 | 49.00 | 49.67 | 49.67 | 0.28% | 1,430,842 |
| Aug 3, 2026 | 48.58 | 50.71 | 48.19 | 49.53 | 49.53 | 1.10% | 1,835,762 |
| Jul 31, 2026 | 49.63 | 49.83 | 48.52 | 48.99 | 48.99 | -2.08% | 1,624,487 |