Entity Common Stock, Shares Outstanding of Alkermes plc. from 01 Nov 2011 to 20 Feb 2026

Taxonomy & unit
dei: shares
Description
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.
Summary
Alkermes plc. quarterly Entity Common Stock, Shares Outstanding in shares history and change rate from 01 Nov 2011 to 20 Feb 2026.
  • Alkermes plc. Entity Common Stock, Shares Outstanding for the quarter ending 20 Feb 2026 was 166,649,934, a 1.1% increase year-over-year.
Source SEC data
View on sec.gov
Entity Common Stock, Shares Outstanding, Quarterly (shares)
Entity Common Stock, Shares Outstanding, YoY Quarterly Change (%)

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

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q1 2026 166,649,934 +1,748,649 +1.1% 20 Feb 2026 10-K 25 Feb 2026 2025 FY
Q3 2025 165,117,509 +3,315,001 +2% 24 Oct 2025 10-Q 28 Oct 2025 2025 Q3
Q2 2025 165,077,979 +409,650 +0.25% 25 Jul 2025 10-Q 29 Jul 2025 2025 Q2
Q1 2025 164,901,285 -4,320,026 -2.6% 25 Apr 2025 10-Q 01 May 2025 2025 Q1
Q4 2024 162,614,067 -4,462,066 -2.7% 07 Feb 2025 10-K 12 Feb 2025 2024 FY
Q3 2024 161,802,508 -5,078,778 -3% 18 Oct 2024 10-Q 24 Oct 2024 2024 Q3
Q2 2024 164,668,329 -1,890,406 -1.1% 19 Jul 2024 10-Q 24 Jul 2024 2024 Q2
Q1 2024 169,221,311 +3,099,927 +1.9% 26 Apr 2024 10-Q 01 May 2024 2024 Q1
Q4 2023 167,076,133 +2,687,010 +1.6% 09 Feb 2024 10-K 21 Feb 2024 2023 FY
Q3 2023 166,881,286 +2,568,930 +1.6% 20 Oct 2023 10-Q 25 Oct 2023 2023 Q3
Q2 2023 166,558,735 +2,304,460 +1.4% 21 Jul 2023 10-Q 26 Jul 2023 2023 Q2
Q1 2023 166,121,384 +2,694,441 +1.6% 21 Apr 2023 10-K/A 26 Apr 2023 2022 FY
Q4 2022 164,389,123 +2,419,865 +1.5% 10 Feb 2023 10-K 16 Feb 2023 2022 FY
Q3 2022 164,312,356 +2,606,989 +1.6% 28 Oct 2022 10-Q 02 Nov 2022 2022 Q3
Q2 2022 164,254,275 +2,922,753 +1.8% 22 Jul 2022 10-Q 27 Jul 2022 2022 Q2
Q1 2022 163,426,943 +2,974,994 +1.9% 22 Apr 2022 10-K/A 29 Apr 2022 2021 FY
Q4 2021 161,969,258 +2,731,369 +1.7% 07 Feb 2022 10-K 16 Feb 2022 2021 FY
Q3 2021 161,705,367 +2,555,582 +1.6% 22 Oct 2021 10-Q 27 Oct 2021 2021 Q3
Q2 2021 161,331,522 +2,287,831 +1.4% 23 Jul 2021 10-Q 28 Jul 2021 2021 Q2
Q1 2021 160,451,949 +1,712,930 +1.1% 23 Apr 2021 10-K/A 29 Apr 2021 2020 FY
Q4 2020 159,237,889 +1,450,456 +0.92% 05 Feb 2021 10-K 11 Feb 2021 2020 FY
Q3 2020 159,149,785 +1,627,538 +1% 23 Oct 2020 10-Q 29 Oct 2020 2020 Q3
Q2 2020 159,043,691 +1,913,079 +1.2% 24 Jul 2020 10-Q 29 Jul 2020 2020 Q2
Q1 2020 158,739,019 +1,834,530 +1.2% 24 Apr 2020 10-Q 29 Apr 2020 2020 Q1
Q4 2019 157,787,433 +1,748,221 +1.1% 04 Feb 2020 10-K 13 Feb 2020 2019 FY
Q3 2019 157,522,247 +2,139,460 +1.4% 18 Oct 2019 10-Q 23 Oct 2019 2019 Q3
Q2 2019 157,130,612 +1,815,434 +1.2% 22 Jul 2019 10-Q 25 Jul 2019 2019 Q2
Q1 2019 156,904,489 +1,866,639 +1.2% 22 Apr 2019 10-Q 25 Apr 2019 2019 Q1
Q4 2018 156,039,212 -105,154 -0.07% 04 Feb 2019 10-K 15 Feb 2019 2018 FY
Q3 2018 155,382,787 +1,606,857 +1% 19 Oct 2018 10-Q 23 Oct 2018 2018 Q3
Q2 2018 155,315,178 +1,658,341 +1.1% 23 Jul 2018 10-Q 26 Jul 2018 2018 Q2
Q1 2018 155,037,850 +1,847,349 +1.2% 20 Apr 2018 10-Q 26 Apr 2018 2018 Q1
Q4 2017 156,144,366 +3,596,908 +2.4% 02 Feb 2018 10-K 16 Feb 2018 2017 FY
Q3 2017 153,775,930 +1,805,448 +1.2% 23 Oct 2017 10-Q 26 Oct 2017 2017 Q3
Q2 2017 153,656,837 +2,100,134 +1.4% 21 Jul 2017 10-Q 27 Jul 2017 2017 Q2
Q1 2017 153,190,501 +2,025,103 +1.3% 24 Apr 2017 10-Q 27 Apr 2017 2017 Q1
Q4 2016 152,547,458 +1,805,841 +1.2% 03 Feb 2017 10-K 17 Feb 2017 2016 FY
Q3 2016 151,970,482 +1,912,427 +1.3% 24 Oct 2016 10-Q 02 Nov 2016 2016 Q3
Q2 2016 151,556,703 +2,158,154 +1.4% 22 Jul 2016 10-Q 28 Jul 2016 2016 Q2
Q1 2016 151,165,398 +2,534,701 +1.7% 22 Apr 2016 10-Q 28 Apr 2016 2016 Q1
Q4 2015 150,741,617 +2,669,111 +1.8% 12 Feb 2016 10-K 25 Feb 2016 2015 FY
Q3 2015 150,058,055 +3,826,553 +2.6% 26 Oct 2015 10-Q 29 Oct 2015 2015 Q3
Q2 2015 149,398,549 +3,570,660 +2.4% 27 Jul 2015 10-Q 30 Jul 2015 2015 Q2
Q1 2015 148,630,697 +4,115,521 +2.8% 24 Apr 2015 10-Q 30 Apr 2015 2015 Q1
Q4 2014 148,072,506 +3,887,213 +2.7% 12 Feb 2015 10-K 24 Feb 2015 2014 FY
Q3 2014 146,231,502 +9,469,120 +6.9% 24 Oct 2014 10-Q 29 Oct 2014 2014 Q3
Q2 2014 145,827,889 +10,135,718 +7.5% 25 Jul 2014 10-Q 31 Jul 2014 2014 Q2
Q1 2014 144,515,176 +10,134,177 +7.5% 24 Apr 2014 10-Q 30 Apr 2014 2014 Q1
Q4 2013 144,185,293 +11,018,282 +8.3% 13 Feb 2014 10-KT 27 Feb 2014 2013 FY
Q3 2013 136,762,382 +4,832,332 +3.7% 28 Oct 2013 10-Q 31 Oct 2013 2013 Q2
Q2 2013 135,692,171 +4,833,329 +3.7% 22 Jul 2013 10-Q 25 Jul 2013 2013 Q2
Q1 2013 134,380,999 +4,139,807 +3.2% 08 May 2013 10-K 23 May 2013 2012 FY
Q4 2012 133,167,011 +3,430,504 +2.6% 28 Jan 2013 10-Q 31 Jan 2013 2012 Q3
Q3 2012 131,930,050 +2,344,909 +1.8% 26 Oct 2012 10-Q 01 Nov 2012 2012 Q2
Q2 2012 130,858,842 20 Jul 2012 10-Q 26 Jul 2012 2012 Q1
Q1 2012 130,241,192 11 May 2012 10-K 18 May 2012 2011 FY
Q4 2011 129,736,507 30 Jan 2012 10-Q 02 Feb 2012 2011 Q3
Q3 2011 129,585,141 01 Nov 2011 10-Q 03 Nov 2011 2011 Q2
* An asterisk sign (*) next to the value indicates that the value is likely invalid.