SuperworthAmphastar Pharmaceuticals shares outstanding AMPH
Diluted shares outstanding, averaged over each quarter, from 2013.
- Latest quarter, to Jun 30, 2026
- 44.2M
- On a year earlier
- −8.1%
- fewer shares
Amphastar Pharmaceuticals had 44.2M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 30, 2026.
That is 8.1% fewer than a year earlier, so each share owns a little more of the company.
Shares outstanding over time
Fiscal year by fiscal year
| Fiscal year | Shares, fourth quarter | Change |
|---|---|---|
| FY2025 | 47.2M | −8% |
| FY2024 | 51.3M | −3% |
| FY2023 | 53M | +2% |
| FY2022 | 51.7M | +3% |
| FY2021 | 50.1M | +5% |
| FY2020 | 47.5M | +1% |
| FY2019 | 46.8M | +1% |
| FY2018 | 46.3M | −6% |
| FY2017 | 49.3M | +7% |
| FY2016 | 46.1M | −1% |
| FY2015 | 46.7M | +5% |
| FY2014 | 44.6M | +15% |
| FY2013 | 39M | n/a |
Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.
Quarter by quarter
| Quarter | Ended | Shares outstanding | On a year earlier |
|---|---|---|---|
| Q2 FY26 | 44.2M | −8% | |
| Q1 FY26 | 46.5M | −7% | |
| Q4 FY25 | 47.2M | −8% | |
| Q3 FY25 | 47.7M | −8% | |
| Q2 FY25 | 48.1M | −8% | |
| Q1 FY25 | 49.9M | −6% | |
| Q4 FY24 | 51.3M | −3% | |
| Q3 FY24 | 51.9M | −4% | |
| Q2 FY24 | 52M | −2% | |
| Q1 FY24 | 53M | +2% | |
| Q4 FY23 | 53M | +2% | |
| Q3 FY23 | 53.9M | +2% |
What the shares outstanding tells you
Diluted shares outstanding, averaged over the period. Fewer shares means each one owns more of the company.
A falling count usually means buybacks. A rising one means stock pay, acquisitions paid in shares or new shares sold.
More on Amphastar Pharmaceuticals
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.