Common Stock, Shares, Outstanding of Alkermes plc. from 31 Mar 2011 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
Alkermes plc. quarterly Common Stock, Shares, Outstanding in shares history and change rate from 31 Mar 2011 to 31 Dec 2025.
  • Alkermes plc. Common Stock, Shares, Outstanding for the quarter ending 31 Dec 2025 was 165,607,028, a 2.1% increase year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

Alkermes plc. Quarterly Common Stock, Shares, Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 165,607,028 +3,430,034 +2.1% 31 Dec 2025 10-K 25 Feb 2026 2025 FY
Q3 2025 165,103,891 +3,327,686 +2.1% 30 Sep 2025 10-Q 28 Oct 2025 2025 Q3
Q2 2025 165,054,912 -831,777 -0.5% 30 Jun 2025 10-Q 29 Jul 2025 2025 Q2
Q1 2025 164,853,015 -4,331,501 -2.6% 31 Mar 2025 10-Q 01 May 2025 2025 Q1
Q4 2024 162,176,994 -4,802,839 -2.9% 31 Dec 2024 10-K 25 Feb 2026 2025 FY
Q3 2024 161,776,205 -4,937,890 -3% 30 Sep 2024 10-Q 24 Oct 2024 2024 Q3
Q2 2024 165,886,689 -611,599 -0.37% 30 Jun 2024 10-Q 24 Jul 2024 2024 Q2
Q1 2024 169,184,516 +3,125,556 +1.9% 31 Mar 2024 10-Q 01 May 2024 2024 Q1
Q4 2023 166,979,833 +2,602,824 +1.6% 31 Dec 2023 10-K 12 Feb 2025 2024 FY
Q3 2023 166,714,095 +2,410,866 +1.5% 30 Sep 2023 10-Q 25 Oct 2023 2023 Q3
Q2 2023 166,498,288 +2,265,584 +1.4% 30 Jun 2023 10-Q 26 Jul 2023 2023 Q2
Q1 2023 166,058,960 +2,846,549 +1.7% 31 Mar 2023 10-Q 26 Apr 2023 2023 Q1
Q4 2022 164,377,009 +2,439,682 +1.5% 31 Dec 2022 10-K 21 Feb 2024 2023 FY
Q3 2022 164,303,229 +2,617,006 +1.6% 30 Sep 2022 10-Q 02 Nov 2022 2022 Q3
Q2 2022 164,232,704 +2,936,578 +1.8% 30 Jun 2022 10-Q 27 Jul 2022 2022 Q2
Q1 2022 163,212,411 +3,014,402 +1.9% 31 Mar 2022 10-Q 27 Apr 2022 2022 Q1
Q4 2021 161,937,327 +2,776,186 +1.7% 31 Dec 2021 10-K 16 Feb 2023 2022 FY
Q3 2021 161,686,223 +2,580,790 +1.6% 30 Sep 2021 10-Q 27 Oct 2021 2021 Q3
Q2 2021 161,296,126 +2,267,771 +1.4% 30 Jun 2021 10-Q 28 Jul 2021 2021 Q2
Q1 2021 160,198,009 +1,513,206 +0.95% 31 Mar 2021 10-Q 28 Apr 2021 2021 Q1
Q4 2020 159,161,141 +1,382,139 +0.88% 31 Dec 2020 10-Q 27 Oct 2021 2021 Q3
Q3 2020 159,105,433 +1,608,443 +1% 30 Sep 2020 10-Q 29 Oct 2020 2020 Q3
Q2 2020 159,028,355 +1,931,482 +1.2% 30 Jun 2020 10-Q 29 Jul 2020 2020 Q2
Q1 2020 158,684,803 +1,799,775 +1.1% 31 Mar 2020 10-Q 29 Apr 2020 2020 Q1
Q4 2019 157,779,002 +2,021,658 +1.3% 31 Dec 2019 10-K 11 Feb 2021 2020 FY
Q3 2019 157,496,990 +2,133,010 +1.4% 30 Sep 2019 10-Q 23 Oct 2019 2019 Q3
Q2 2019 157,096,873 +1,794,120 +1.2% 30 Jun 2019 10-Q 25 Jul 2019 2019 Q2
Q1 2019 156,885,028 +1,881,045 +1.2% 31 Mar 2019 10-Q 25 Apr 2019 2019 Q1
Q4 2018 155,757,344 +1,747,888 +1.1% 31 Dec 2018 10-K 13 Feb 2020 2019 FY
Q3 2018 155,363,980 +1,618,324 +1.1% 30 Sep 2018 10-Q 23 Oct 2018 2018 Q3
Q2 2018 155,302,753 +1,652,556 +1.1% 30 Jun 2018 10-Q 26 Jul 2018 2018 Q2
Q1 2018 155,003,983 +1,881,171 +1.2% 31 Mar 2018 10-Q 26 Apr 2018 2018 Q1
Q4 2017 154,009,456 +1,578,942 +1% 31 Dec 2017 10-K 15 Feb 2019 2018 FY
Q3 2017 153,745,656 +1,940,356 +1.3% 30 Sep 2017 10-Q 26 Oct 2017 2017 Q3
Q2 2017 153,650,197 +2,147,244 +1.4% 30 Jun 2017 10-Q 27 Jul 2017 2017 Q2
Q1 2017 153,122,812 +2,040,337 +1.4% 31 Mar 2017 10-Q 27 Apr 2017 2017 Q1
Q4 2016 152,430,514 +1,729,525 +1.1% 31 Dec 2016 10-K 16 Feb 2018 2017 FY
Q3 2016 151,805,300 +1,951,788 +1.3% 30 Sep 2016 10-Q 02 Nov 2016 2016 Q3
Q2 2016 151,502,953 +2,198,937 +1.5% 30 Jun 2016 10-Q 28 Jul 2016 2016 Q2
Q1 2016 151,082,475 +2,602,653 +1.8% 31 Mar 2016 10-Q 28 Apr 2016 2016 Q1
Q4 2015 150,700,989 +3,162,470 +2.1% 31 Dec 2015 10-K 17 Feb 2017 2016 FY
Q3 2015 149,853,512 +3,765,045 +2.6% 30 Sep 2015 10-Q 29 Oct 2015 2015 Q3
Q2 2015 149,304,016 +3,640,075 +2.5% 30 Jun 2015 10-Q 30 Jul 2015 2015 Q2
Q1 2015 148,479,822 +4,034,871 +2.8% 31 Mar 2015 10-Q 30 Apr 2015 2015 Q1
Q4 2014 147,538,519 +9,745,933 +7.1% 31 Dec 2014 10-K 25 Feb 2016 2015 FY
Q3 2014 146,088,467 +9,441,951 +6.9% 30 Sep 2014 10-Q 29 Oct 2014 2014 Q3
Q2 2014 145,663,941 +10,401,851 +7.7% 30 Jun 2014 10-Q 31 Jul 2014 2014 Q2
Q1 2014 144,444,951 +10,693,341 +8% 31 Mar 2014 10-Q 30 Apr 2014 2014 Q1
Q4 2013 137,792,586 +5,372,837 +4.1% 31 Dec 2013 10-K 24 Feb 2015 2014 FY
Q3 2013 136,646,516 +5,078,699 +3.9% 30 Sep 2013 10-Q 31 Oct 2013 2013 Q2
Q2 2013 135,262,090 +4,531,810 +3.5% 30 Jun 2013 10-Q 25 Jul 2013 2013 Q2
Q1 2013 133,751,610 +3,574,158 +2.7% 31 Mar 2013 10-KT 27 Feb 2014 2013 FY
Q4 2012 132,419,749 31 Dec 2012 10-Q 31 Jan 2013 2012 Q3
Q3 2012 131,567,817 +1,983,232 +1.5% 30 Sep 2012 10-Q 01 Nov 2012 2012 Q2
Q2 2012 130,730,280 30 Jun 2012 10-Q 26 Jul 2012 2012 Q1
Q1 2012 130,177,452 +34,475,153 +36% 31 Mar 2012 10-K 23 May 2013 2012 FY
Q3 2011 129,584,585 30 Sep 2011 10-Q 03 Nov 2011 2011 Q2
Q1 2011 95,702,299 31 Mar 2011 10-K 18 May 2012 2011 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.