Alkermes plc. (ALKS): Shares Outstanding

Annual figures by period end, from SEC filings.

165.61M
As of 2025-12-31
167.54M
As of 2026-06-30
+0.2%
3-year compound annual growth
+0.8%
5-year compound annual growth
+0.9%
10-year compound annual growth
166.98M2011-03-31: 95.70M2012-03-31: 130.18M2013-03-31: 133.75M2013-12-31: 137.79M2014-12-31: 147.54M2015-12-31: 150.70M2016-12-31: 152.43M2017-12-31: 154.01M2018-12-31: 155.76M2019-12-31: 157.78M2020-12-31: 159.16M2021-12-31: 161.94M2022-12-31: 164.38M2023-12-31: 166.98M2024-12-31: 162.18M2025-12-31: 165.61M165.61M
2011-03-31 Shares Outstanding (shares) 2025-12-31
Period endedShares OutstandingChange YoYSource filing
2025-12-31165.61M+2.1%2026-02-25, Balance as of period end
2024-12-31162.18M-2.9%2026-02-25, Balance as of period end
2023-12-31166.98M+1.6%2025-02-12, Balance as of period end
2022-12-31164.38M+1.5%2024-02-21, Balance as of period end
2021-12-31161.94M+1.7%2023-02-16, Balance as of period end
2020-12-31159.16M+0.9%2021-02-11, Balance as of period end
2019-12-31157.78M+1.3%2021-02-11, Balance as of period end
2018-12-31155.76M+1.1%2020-02-13, Balance as of period end
2017-12-31154.01M+1.0%2019-02-15, Balance as of period end
2016-12-31152.43M+1.1%2018-02-16, Balance as of period end
2015-12-31150.70M+2.1%2017-02-17, Balance as of period end
2014-12-31147.54M+7.1%2016-02-25, Balance as of period end
2013-12-31137.79Mn/a2015-02-24, Balance as of period end
2013-03-31133.75M+2.7%2013-05-23, Balance as of period end
2012-03-31130.18M+36.0%2013-05-23, Balance as of period end
2011-03-3195.70Mn/a2012-05-18, Balance as of period end