Alkermes plc annual shares outstanding
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2025
Alkermes plc Shares Outstanding History (ALKS)
Alkermes plc reported 165.6M shares outstanding at the end of fiscal 2025.
View full Alkermes plc company overviewAlkermes plc annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | 165.6M | 3.4M | +2.11% |
| 2024 | 2024-12-31 | 162.2M | −4.8M | −2.88% |
| 2023 | 2023-12-31 | 167.0M | 2.6M | +1.58% |
| 2022 | 2022-12-31 | 164.4M | 2.4M | +1.51% |
| 2021 | 2021-12-31 | 161.9M | 2.8M | +1.74% |
| 2020 | 2020-12-31 | 159.2M | 1.4M | +0.88% |
| 2019 | 2019-12-31 | 157.8M | 2.0M | +1.30% |
| 2018 | 2018-12-31 | 155.8M | 1.7M | +1.13% |
| 2017 | 2017-12-31 | 154.0M | 1.6M | +1.04% |
| 2016 | 2016-12-31 | 152.4M | 1.7M | +1.15% |
| 2015 | 2015-12-31 | 150.7M | 3.2M | +2.14% |
| 2014 | 2014-12-31 | 147.5M | 9.7M | +7.07% |
| 2013 | 2013-12-31 | 137.8M | 4.0M | +3.02% |
| 2012 | 2013-03-31 | 133.8M | 3.6M | +2.75% |
| 2011 | 2012-03-31 | 130.2M | 34.5M | +36.02% |
| 2010 | 2011-03-31 | 95.7M | — | — |
Alkermes plc quarterly shares outstanding
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| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | 167.5M | 2.5M | +1.51% |
| Q1 2026 | 2026-03-31 | 166.5M | 1.6M | +0.98% |
| Q4 2025 | 2025-12-31 | 165.6M | 3.4M | +2.11% |
| Q3 2025 | 2025-09-30 | 165.1M | 3.3M | +2.06% |
| Q2 2025 | 2025-06-30 | 165.1M | −831,777 | −0.50% |
| Q1 2025 | 2025-03-31 | 164.9M | −4.3M | −2.56% |
| Q4 2024 | 2024-12-31 | 162.2M | −4.8M | −2.88% |
| Q3 2024 | 2024-09-30 | 161.8M | −4.9M | −2.96% |
| Q2 2024 | 2024-06-30 | 165.9M | −611,599 | −0.37% |
| Q1 2024 | 2024-03-31 | 169.2M | 3.1M | +1.88% |
| Q4 2023 | 2023-12-31 | 167.0M | 2.6M | +1.58% |
| Q3 2023 | 2023-09-30 | 166.7M | 2.4M | +1.47% |
| Q2 2023 | 2023-06-30 | 166.5M | 2.3M | +1.38% |
| Q1 2023 | 2023-03-31 | 166.1M | 2.8M | +1.74% |
| Q4 2022 | 2022-12-31 | 164.4M | 2.4M | +1.51% |
| Q3 2022 | 2022-09-30 | 164.3M | 2.6M | +1.62% |
| Q2 2022 | 2022-06-30 | 164.2M | 2.9M | +1.82% |
| Q1 2022 | 2022-03-31 | 163.2M | 3.0M | +1.88% |
| Q4 2021 | 2021-12-31 | 161.9M | 2.8M | +1.74% |
| Q3 2021 | 2021-09-30 | 161.7M | 2.6M | +1.62% |
| Q2 2021 | 2021-06-30 | 161.3M | 2.3M | +1.43% |
| Q1 2021 | 2021-03-31 | 160.2M | 1.5M | +0.95% |
| Q4 2020 | 2020-12-31 | 159.2M | 1.4M | +0.88% |
| Q3 2020 | 2020-09-30 | 159.1M | 1.6M | +1.02% |
| Q2 2020 | 2020-06-30 | 159.0M | 1.9M | +1.23% |
| Q1 2020 | 2020-03-31 | 158.7M | 1.8M | +1.15% |
| Q4 2019 | 2019-12-31 | 157.8M | 2.0M | +1.30% |
| Q3 2019 | 2019-09-30 | 157.5M | 2.1M | +1.37% |
| Q2 2019 | 2019-06-30 | 157.1M | 1.8M | +1.16% |
| Q1 2019 | 2019-03-31 | 156.9M | 1.9M | +1.21% |
| Q4 2018 | 2018-12-31 | 155.8M | 1.7M | +1.13% |
| Q3 2018 | 2018-09-30 | 155.4M | 1.6M | +1.05% |
| Q2 2018 | 2018-06-30 | 155.3M | 1.7M | +1.08% |
| Q1 2018 | 2018-03-31 | 155.0M | 1.9M | +1.23% |
| Q4 2017 | 2017-12-31 | 154.0M | 1.6M | +1.04% |
| Q3 2017 | 2017-09-30 | 153.7M | 1.9M | +1.28% |
| Q2 2017 | 2017-06-30 | 153.7M | 2.1M | +1.42% |
| Q1 2017 | 2017-03-31 | 153.1M | 2.0M | +1.35% |
| Q4 2016 | 2016-12-31 | 152.4M | 1.7M | +1.15% |
| Q3 2016 | 2016-09-30 | 151.8M | 2.0M | +1.30% |
| Q2 2016 | 2016-06-30 | 151.5M | 2.2M | +1.47% |
| Q1 2016 | 2016-03-31 | 151.1M | 2.6M | +1.75% |
| Q4 2015 | 2015-12-31 | 150.7M | 3.2M | +2.14% |
| Q3 2015 | 2015-09-30 | 149.9M | 3.8M | +2.58% |
| Q2 2015 | 2015-06-30 | 149.3M | 3.6M | +2.50% |
| Q1 2015 | 2015-03-31 | 148.5M | 4.0M | +2.79% |
| Q4 2014 | 2014-12-31 | 147.5M | 9.7M | +7.07% |
| Q3 2014 | 2014-09-30 | 146.1M | 9.4M | +6.91% |
| Q2 2014 | 2014-06-30 | 145.7M | 10.4M | +7.69% |
| Q1 2014 | 2014-03-31 | 144.4M | 10.7M | +7.99% |
| Q4 2013 | 2013-12-31 | 137.8M | 5.4M | +4.06% |
| Q2 2013 | 2013-09-30 | 136.6M | 5.1M | +3.86% |
| Q1 2013 | 2013-06-30 | 135.3M | 4.5M | +3.47% |
| Q4 2012 | 2013-03-31 | 133.8M | 3.6M | +2.75% |
| Q3 2012 | 2012-12-31 | 132.4M | 2.8M | +2.19% |
| Q2 2012 | 2012-09-30 | 131.6M | 35.9M | +37.48% |
| Q1 2012 | 2012-06-30 | 130.7M | — | — |
| Q4 2011 | 2012-03-31 | 130.2M | — | — |
| Q2 2011 | 2011-09-30 | 129.6M | — | — |
| Q4 2010 | 2011-03-31 | 95.7M | — | — |
Alkermes plc shares outstanding trends
Over the last five reported fiscal years, Alkermes plc's shares outstanding moved from 159.2M to 165.6M, a change of 6.4M. The latest reported quarter, Q2 2026, shows 167.5M.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when SEC-reported stock-split conversion ratios are available. Values remain as reported when no split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Alkermes plc filings at SEC.gov ↗