AMTECH SYSTEMS INC Common Stock Shares Outstanding

• AMTECH SYSTEMS INC showed an increase of +0.7% in Common Stock Shares Outstanding from 2024 to 2025.
• This data is from AMTECH SYSTEMS INC's annual report (Form 10-K), filed with the SEC on December 10, 2025.
• XBRL data for this metric is available from 2010 to 2025 (16 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: Q2 2011: 9.58 million shares | Q4 2011: 9.48 million shares | Q1 2012: 9.48 million shares | Q2 2012: 9.48 million shares | Q4 2012: 9.54 million shares | Q1 2013: 9.54 million shares | Q2 2013: 9.54 million shares | Q4 2013: 9.58 million shares | Q1 2014: 9.84 million shares | Q2 2014: 9.84 million shares | Q4 2014: 9.87 million shares | Q1 2015: 13.07 million shares | Q2 2015: 13.15 million shares | Q4 2015: 13.17 million shares | Q2 2016: 13.17 million shares | Q3 2016: 14.71 million shares | Q4 2016: 13.18 million shares | Q1 2017: 13.20 million shares | Q2 2017: 13.33 million shares | Q4 2017: 14.88 million shares | Q1 2018: 14.90 million shares | Q2 2018: 14.99 million shares | Q4 2018: 14.23 million shares | Q1 2019: 14.23 million shares | Q2 2019: 14.26 million shares | Q4 2019: 14.39 million shares | Q1 2020: 14.04 million shares | Q2 2020: 14.05 million shares | Q4 2020: 14.09 million shares | Q1 2021: 14.22 million shares | Q2 2021: 14.25 million shares | Q4 2021: 14.03 million shares | Q1 2022: 13.89 million shares | Q2 2022: 13.89 million shares | Q4 2022: 14.00 million shares | Q1 2023: 14.04 million shares | Q2 2023: 14.08 million shares | Q4 2023: 14.19 million shares | Q1 2024: 14.21 million shares | Q2 2024: 14.21 million shares | Q4 2024: 14.29 million shares | Q1 2025: 14.31 million shares | Q2 2025: 14.31 million shares | Q3 2025: 14.35 million shares | Q4 2025: 14.39 million shares.
• Over the full 16 years of available data (2010 to 2025), AMTECH SYSTEMS INC's Common Stock Shares Outstanding has grown by 55.9%.
• Historical annual values: Fiscal year 2025: 14.35 million shares | Fiscal year 2024: 14.26 million shares | Fiscal year 2023: 14.19 million shares | Fiscal year 2022: 13.99 million shares | Fiscal year 2021: 14.30 million shares | Fiscal year 2020: 14.06 million shares | Fiscal year 2019: 14.27 million shares | Fiscal year 2018: 14.22 million shares | Fiscal year 2017: 14.71 million shares | Fiscal year 2016: 13.18 million shares | Fiscal year 2015: 13.15 million shares | Fiscal year 2014: 9.85 million shares | Fiscal year 2013: 9.55 million shares | Fiscal year 2012: 9.48 million shares | Fiscal year 2011: 9.43 million shares | Fiscal year 2010: 9.21 million shares.
• Data sourced from SEC EDGAR public filings as of August 9, 2026.

Last verified: August 9, 2026