Alkermes plc. Common Stock Shares Outstanding

• Alkermes plc. showed an increase of +2.1% in Common Stock Shares Outstanding from 2024 to 2025.
• This data is from Alkermes plc.'s annual report (Form 10-K), filed with the SEC on February 25, 2026.
• XBRL data for this metric is available from 2011 to 2025 (17 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Quarterly values from 10-Q filings: Q3 2011: 129.58 million shares | Q2 2012: 130.73 million shares | Q3 2012: 131.57 million shares | Q4 2012: 132.42 million shares | Q1 2013: 133.75 million shares | Q2 2013: 135.26 million shares | Q3 2013: 136.65 million shares | Q1 2014: 144.44 million shares | Q2 2014: 145.66 million shares | Q3 2014: 146.09 million shares | Q1 2015: 148.48 million shares | Q2 2015: 149.30 million shares | Q3 2015: 149.85 million shares | Q1 2016: 151.08 million shares | Q2 2016: 151.50 million shares | Q3 2016: 151.81 million shares | Q1 2017: 153.12 million shares | Q2 2017: 153.65 million shares | Q3 2017: 153.75 million shares | Q1 2018: 155.00 million shares | Q2 2018: 155.30 million shares | Q3 2018: 155.36 million shares | Q1 2019: 156.89 million shares | Q2 2019: 157.10 million shares | Q3 2019: 157.50 million shares | Q1 2020: 158.68 million shares | Q2 2020: 159.03 million shares | Q3 2020: 159.11 million shares | Q4 2020: 159.16 million shares | Q1 2021: 160.20 million shares | Q2 2021: 161.30 million shares | Q3 2021: 161.69 million shares | Q1 2022: 163.21 million shares | Q2 2022: 164.23 million shares | Q3 2022: 164.30 million shares | Q1 2023: 166.06 million shares | Q2 2023: 166.50 million shares | Q3 2023: 166.71 million shares | Q1 2024: 169.18 million shares | Q2 2024: 165.89 million shares | Q3 2024: 161.78 million shares | Q1 2025: 164.85 million shares | Q2 2025: 165.05 million shares | Q3 2025: 165.10 million shares.
• Over the full 17 years of available data (2011 to 2025), Alkermes plc.'s Common Stock Shares Outstanding has grown by 73.0%.
• Historical annual values: Fiscal year 2025: 165.61 million shares | Fiscal year 2024: 162.18 million shares | Fiscal year 2023: 166.98 million shares | Fiscal year 2022: 164.38 million shares | Fiscal year 2021: 161.94 million shares | Fiscal year 2020: 159.16 million shares | Fiscal year 2020: 159.16 million shares | Fiscal year 2019: 157.78 million shares | Fiscal year 2018: 155.76 million shares | Fiscal year 2017: 154.01 million shares | Fiscal year 2016: 152.43 million shares | Fiscal year 2015: 150.70 million shares | Fiscal year 2014: 147.54 million shares | Fiscal year 2013: 137.79 million shares | Fiscal year 2013: 133.75 million shares | Fiscal year 2012: 130.18 million shares | Fiscal year 2011: 95.70 million shares.
• Data sourced from SEC EDGAR public filings as of August 9, 2026.

Last verified: August 9, 2026