TickerFacts.

Alkermes plc. (ALKS): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Restated years: each year's figure is from the latest filing that reports it. The company later restated the year ended 2021-12-31 (for example after a spin-off or a discontinued operation), while the year before it was last reported on the old basis. Changes across those points are marked n/c (not comparable), and growth rates are not computed across them.

168.74M
Year ended 2025-12-31
+1.0%
3-year compound annual growth
169.73M2010-03-31: 94.84M2011-03-31: 95.61M2012-03-31: 114.70M2013-12-31: 144.01M2014-12-31: 145.27M2015-12-31: 149.21M2020-12-31: 158.80M2021-12-31: 164.75M2022-12-31: 163.74M2023-12-31: 169.73M2024-12-31: 169.20M2025-12-31: 168.74M168.74M
2010-03-31 Weighted Average Diluted Shares (shares) 2025-12-31
Period endedWeighted Average Diluted SharesChange YoYSource filing
2025-12-31168.74M-0.3%2026-02-25, From 2025-01-01
2024-12-31169.20M-0.3%2026-02-25, From 2024-01-01
2023-12-31169.73M+3.7%2026-02-25, From 2023-01-01
2022-12-31163.74M-0.6%2025-02-12, From 2022-01-01
2021-12-31164.75Mn/c2024-02-21, From 2021-01-01
2020-12-31158.80Mn/a2023-02-16, From 2020-01-01
No annual figure between 2015-12-31 and 2020-12-31.
2015-12-31149.21M+2.7%2016-02-25, From 2015-01-01
2014-12-31145.27M+0.9%2016-02-25, From 2014-01-01
2013-12-31144.01Mn/a2016-02-25, From 2013-01-01
No annual figure between 2012-03-31 and 2013-12-31.
2012-03-31114.70M+20.0%2013-05-23, From 2011-04-01
2011-03-3195.61M+0.8%2013-05-23, From 2010-04-01
2010-03-3194.84Mn/a2012-05-18, From 2009-04-01