Alkermes plc. Weighted Average Number of Shares Outstanding, Basic from 2009 to Q3 2025

Taxonomy & unit
us-gaap: shares
Description
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
Summary
Alkermes plc. quarterly/annual Weighted Average Number of Shares Outstanding, Basic history and growth rate from 2009 to Q3 2025.
  • Alkermes plc. Weighted Average Number of Shares Outstanding, Basic for the quarter ending September 30, 2025 was 165M shares, a 1.05% increase year-over-year.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 165M shares, a 0.5% decline from 2023.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 166M shares, a 1.52% increase from 2022.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Basic for 2022 was 164M shares, a 1.74% increase from 2021.
Weighted Average Number of Shares Outstanding, Basic, Quarterly (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Quarterly Growth (%)
Weighted Average Number of Shares Outstanding, Basic, Annual (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Annual Growth (%)

Alkermes plc. Quarterly Weighted Average Number of Shares Outstanding, Basic (shares)

Period TTM Value Value YoY Chg Change % Start Date End Date Report Filed
Q3 2025 165M +1.72M +1.05% Jul 1, 2025 Sep 30, 2025 10-Q 2025-10-28
Q2 2025 165M -3.36M -2% Apr 1, 2025 Jun 30, 2025 10-Q 2025-07-29
Q1 2025 163M -4.58M -2.73% Jan 1, 2025 Mar 31, 2025 10-Q 2025-05-01
Q4 2024 165M -831K -0.5% Oct 1, 2024 Dec 31, 2024 10-K 2025-02-12
Q3 2024 163M -3.24M -1.94% Jul 1, 2024 Sep 30, 2024 10-Q 2025-10-28
Q2 2024 168M +2.04M +1.23% Apr 1, 2024 Jun 30, 2024 10-Q 2025-07-29
Q1 2024 168M +2.9M +1.76% Jan 1, 2024 Mar 31, 2024 10-Q 2025-05-01
Q4 2023 166M +2.48M +1.52% Oct 1, 2023 Dec 31, 2023 10-K 2025-02-12
Q3 2023 167M +2.33M +1.42% Jul 1, 2023 Sep 30, 2023 10-Q 2024-10-24
Q2 2023 166M +2.44M +1.49% Apr 1, 2023 Jun 30, 2023 10-Q 2024-07-24
Q1 2023 165M +2.6M +1.6% Jan 1, 2023 Mar 31, 2023 10-Q 2024-05-01
Q4 2022 164M Oct 1, 2022 Dec 31, 2022 10-K 2025-02-12
Q3 2022 164M +2.83M +1.75% Jul 1, 2022 Sep 30, 2022 10-Q 2023-10-25
Q2 2022 164M +3.02M +1.88% Apr 1, 2022 Jun 30, 2022 10-Q 2023-07-26
Q1 2022 162M Jan 1, 2022 Mar 31, 2022 10-Q 2023-04-26
Q3 2021 161M Jul 1, 2021 Sep 30, 2021 10-Q 2022-11-02
Q2 2021 161M +1.92M +1.21% Apr 1, 2021 Jun 30, 2021 10-Q 2022-07-27
Q2 2020 159M Apr 1, 2020 Jun 30, 2020 10-Q 2021-07-28
Q2 2015 149M +3.95M +2.73% Apr 1, 2015 Jun 30, 2015 10-Q 2015-07-30
Q1 2015 148M +4.73M +3.3% Jan 1, 2015 Mar 31, 2015 10-Q 2015-04-30
Q4 2014 145M +9.98M +7.37% Oct 1, 2014 Dec 31, 2014 10-K 2016-02-25
Q3 2014 146M +9.79M +7.19% Jul 1, 2014 Sep 30, 2014 10-Q 2014-10-29
Q2 2014 145M +10.3M +7.66% Apr 1, 2014 Jun 30, 2014 10-Q 2015-07-30
Q1 2014 143M +10.1M +7.57% Jan 1, 2014 Mar 31, 2014 10-Q 2015-04-30
Q4 2013 135M +3.2M +2.42% Oct 1, 2013 Dec 31, 2013 10-K 2016-02-25
Q3 2013 136M +5.04M +3.85% Jul 1, 2013 Sep 30, 2013 10-Q 2014-10-29
Q2 2013 135M +4.17M +3.2% Apr 1, 2013 Jun 30, 2013 10-Q 2014-07-31
Q1 2013 133M +18.6M +16.2% Jan 1, 2013 Mar 31, 2013 10-Q 2014-04-30
Q4 2012 132M +2.43M +1.87% Oct 1, 2012 Dec 31, 2012 10-Q 2013-01-31
Q3 2012 131M +28.6M +27.9% Jul 1, 2012 Sep 30, 2012 10-Q 2013-10-31
Q2 2012 130M +33.8M +35% Apr 1, 2012 Jun 30, 2012 10-Q 2013-07-25
Q1 2012 115M Jan 1, 2012 Mar 31, 2012 10-KT 2014-02-27
Q4 2011 130M +34M +35.5% Oct 1, 2011 Dec 31, 2011 10-Q 2013-01-31
Q3 2011 102M +102M Jul 1, 2011 Sep 30, 2011 10-Q 2012-11-01
Q2 2011 96.6M Apr 1, 2011 Jun 30, 2011 10-Q 2012-07-26
Q4 2010 95.7M Oct 1, 2010 Dec 31, 2010 10-Q 2012-02-02
Q3 2010 95.5K* Jul 1, 2010 Sep 30, 2010 10-Q 2011-11-03

Alkermes plc. Annual Weighted Average Number of Shares Outstanding, Basic (shares)

Period Value YoY Chg Change % Start Date End Date Report Filed
2024 165M -831K -0.5% Jan 1, 2024 Dec 31, 2024 10-K 2025-02-12
2023 166M +2.48M +1.52% Jan 1, 2023 Dec 31, 2023 10-K 2025-02-12
2022 164M +2.8M +1.74% Jan 1, 2022 Dec 31, 2022 10-K 2025-02-12
2021 161M +2.14M +1.35% Jan 1, 2021 Dec 31, 2021 10-K 2024-02-21
2020 159M Jan 1, 2020 Dec 31, 2020 10-K 2023-02-16
2015 149M +3.93M +2.71% Jan 1, 2015 Dec 31, 2015 10-K 2016-02-25
2014 145M +9.98M +7.37% Jan 1, 2014 Dec 31, 2014 10-K 2016-02-25
2013 135M +3.58M +2.72% Jan 1, 2013 Dec 31, 2013 10-K 2016-02-25
2012 132M +17M +14.8% Apr 1, 2012 Mar 31, 2013 10-K 2015-02-24
2011 115M +19.1M +20% Apr 1, 2011 Mar 31, 2012 10-KT 2014-02-27
2010 95.6M +771K +0.81% Apr 1, 2010 Mar 31, 2011 10-K 2013-05-23
2009 94.8M Apr 1, 2009 Mar 31, 2010 10-K 2012-05-18
* An asterisk sign (*) next to the value indicates that the value is likely invalid.