Weighted Average Number of Shares Outstanding, Diluted of Alkermes plc. from 31 Mar 2010 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
Summary
Alkermes plc. quarterly and annual Weighted Average Number of Shares Outstanding, Diluted in shares history and change rate from 31 Mar 2010 to 31 Dec 2025.
  • Alkermes plc. Weighted Average Number of Shares Outstanding, Diluted for the quarter ending 31 Dec 2025 was 168,743,000, a 0.27% decline year-over-year.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Diluted for 2025 was 168,743,000, a 0.27% decline from 2024.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Diluted for 2024 was 169,198,000, a 0.31% decline from 2023.
  • Alkermes plc. annual Weighted Average Number of Shares Outstanding, Diluted for 2023 was 169,730,000, a 3.7% increase from 2022.
Source SEC data
View on sec.gov
Weighted Average Number of Shares Outstanding, Diluted, Quarterly (shares)
Weighted Average Number of Shares Outstanding, Diluted, YoY Quarterly Change (%)
Weighted Average Number of Shares Outstanding, Diluted, Annual (shares)
Weighted Average Number of Shares Outstanding, Diluted, YoY Annual Change (%)

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

Period TTM Value Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
Q4 2025 168,743,000 -455,000 -0.27% 01 Oct 2025 31 Dec 2025 10-K 25 Feb 2026 2025 FY
Q3 2025 168,510,000 +1,485,000 +0.89% 01 Jul 2025 30 Sep 2025 10-Q 28 Oct 2025 2025 Q3
Q2 2025 168,357,000 -2,620,000 -1.5% 01 Apr 2025 30 Jun 2025 10-Q 29 Jul 2025 2025 Q2
Q1 2025 168,737,000 -4,244,000 -2.5% 01 Jan 2025 31 Mar 2025 10-Q 01 May 2025 2025 Q1
Q4 2024 169,198,000 -532,000 -0.31% 01 Oct 2024 31 Dec 2024 10-K 25 Feb 2026 2025 FY
Q3 2024 167,025,000 -4,878,000 -2.8% 01 Jul 2024 30 Sep 2024 10-Q 28 Oct 2025 2025 Q3
Q2 2024 170,977,000 -576,000 -0.34% 01 Apr 2024 30 Jun 2024 10-Q 29 Jul 2025 2025 Q2
Q1 2024 172,981,000 +7,896,000 +4.8% 01 Jan 2024 31 Mar 2024 10-Q 01 May 2025 2025 Q1
Q4 2023 169,730,000 +5,988,000 +3.7% 01 Oct 2023 31 Dec 2023 10-K 25 Feb 2026 2025 FY
Q3 2023 171,903,000 +7,621,000 +4.6% 01 Jul 2023 30 Sep 2023 10-Q 24 Oct 2024 2024 Q3
Q2 2023 171,553,000 +7,714,000 +4.7% 01 Apr 2023 30 Jun 2023 10-Q 24 Jul 2024 2024 Q2
Q1 2023 165,085,000 +2,602,000 +1.6% 01 Jan 2023 31 Mar 2023 10-Q 01 May 2024 2024 Q1
Q4 2022 163,742,000 01 Oct 2022 31 Dec 2022 10-K 12 Feb 2025 2024 FY
Q3 2022 164,282,000 +2,826,000 +1.8% 01 Jul 2022 30 Sep 2022 10-Q 25 Oct 2023 2023 Q3
Q2 2022 163,839,000 -98,000 -0.06% 01 Apr 2022 30 Jun 2022 10-Q 26 Jul 2023 2023 Q2
Q1 2022 162,483,000 01 Jan 2022 31 Mar 2022 10-Q 26 Apr 2023 2023 Q1
Q3 2021 161,456,000 01 Jul 2021 30 Sep 2021 10-Q 02 Nov 2022 2022 Q3
Q2 2021 163,937,000 +5,042,000 +3.2% 01 Apr 2021 30 Jun 2021 10-Q 27 Jul 2022 2022 Q2
Q2 2020 158,895,000 01 Apr 2020 30 Jun 2020 10-Q 28 Jul 2021 2021 Q2
Q2 2015 148,867,000 -5,433,000 -3.5% 01 Apr 2015 30 Jun 2015 10-Q 30 Jul 2015 2015 Q2
Q1 2015 148,089,000 +4,731,000 +3.3% 01 Jan 2015 31 Mar 2015 10-Q 30 Apr 2015 2015 Q1
Q4 2014 145,274,000 +1,262,000 +0.88% 01 Oct 2014 31 Dec 2014 10-K 25 Feb 2016 2015 FY
Q3 2014 145,896,000 +9,790,000 +7.2% 01 Jul 2014 30 Sep 2014 10-Q 29 Oct 2014 2014 Q3
Q2 2014 154,300,000 +10,931,000 +7.6% 01 Apr 2014 30 Jun 2014 10-Q 30 Jul 2015 2015 Q2
Q1 2014 143,358,000 +3,681,000 +2.6% 01 Jan 2014 31 Mar 2014 10-Q 30 Apr 2015 2015 Q1
Q4 2013 144,012,000 +6,515,000 +4.7% 01 Oct 2013 31 Dec 2013 10-K 25 Feb 2016 2015 FY
Q3 2013 136,106,000 +5,039,000 +3.8% 01 Jul 2013 30 Sep 2013 10-Q 29 Oct 2014 2014 Q3
Q2 2013 143,369,000 +8,424,000 +6.2% 01 Apr 2013 30 Jun 2013 10-Q 31 Jul 2014 2014 Q2
Q1 2013 139,677,000 +24,975,000 +22% 01 Jan 2013 31 Mar 2013 10-Q 30 Apr 2014 2014 Q1
Q4 2012 137,497,000 +7,827,000 +6% 01 Oct 2012 31 Dec 2012 10-Q 31 Jan 2013 2012 Q3
Q3 2012 131,067,000 +28,593,000 +28% 01 Jul 2012 30 Sep 2012 10-Q 31 Oct 2013 2013 Q2
Q2 2012 134,945,000 +38,296,000 +40% 01 Apr 2012 30 Jun 2012 10-Q 25 Jul 2013 2013 Q2
Q1 2012 114,702,000 01 Jan 2012 31 Mar 2012 10-KT 27 Feb 2014 2013 FY
Q4 2011 129,670,000 01 Oct 2011 31 Dec 2011 10-Q 31 Jan 2013 2012 Q3
Q3 2011 102,474,000 01 Jul 2011 30 Sep 2011 10-Q 01 Nov 2012 2012 Q2
Q2 2011 96,649,000 01 Apr 2011 30 Jun 2011 10-Q 26 Jul 2012 2012 Q1

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

Period Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
2025 168,743,000 -455,000 -0.27% 01 Jan 2025 31 Dec 2025 10-K 25 Feb 2026 2025 FY
2024 169,198,000 -532,000 -0.31% 01 Jan 2024 31 Dec 2024 10-K 25 Feb 2026 2025 FY
2023 169,730,000 +5,988,000 +3.7% 01 Jan 2023 31 Dec 2023 10-K 25 Feb 2026 2025 FY
2022 163,742,000 -1,011,000 -0.61% 01 Jan 2022 31 Dec 2022 10-K 12 Feb 2025 2024 FY
2021 164,753,000 +5,950,000 +3.7% 01 Jan 2021 31 Dec 2021 10-K 21 Feb 2024 2023 FY
2020 158,803,000 01 Jan 2020 31 Dec 2020 10-K 16 Feb 2023 2022 FY
2015 149,206,000 +3,932,000 +2.7% 01 Jan 2015 31 Dec 2015 10-K 25 Feb 2016 2015 FY
2014 145,274,000 +1,262,000 +0.88% 01 Jan 2014 31 Dec 2014 10-K 25 Feb 2016 2015 FY
2013 144,012,000 +6,912,000 +5% 01 Jan 2013 31 Dec 2013 10-K 25 Feb 2016 2015 FY
2012 137,100,000 +22,398,000 +20% 01 Apr 2012 31 Mar 2013 10-K 24 Feb 2015 2014 FY
2011 114,702,000 +19,092,000 +20% 01 Apr 2011 31 Mar 2012 10-KT 27 Feb 2014 2013 FY
2010 95,610,000 +771,000 +0.81% 01 Apr 2010 31 Mar 2011 10-K 23 May 2013 2012 FY
2009 94,839,000 01 Apr 2009 31 Mar 2010 10-K 18 May 2012 2011 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.