Shares Outstanding:
45.95M-396.70K(-0.86%)Summary
- As of today, AMPH has 45.95 million outstanding stocks, with the most recent change of -396.70 thousand (-0.86%) on October 31, 2025.
- Compared to the previous year, the number of outstanding shares has dropped by -2.13 million (-4.43%).
Performance
AMPH Shares Outstanding Chart
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Range
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AMPH Shares Outstanding Trends
| PeriodPeriod | Shares OutstandingShares Outstanding | PricePrice | Market CapMarket Cap |
|---|---|---|---|
| RecentMost recent | -0.9% | -3.2% | -3.2% |
| 1Y1 Year | -4.4% | -30.9% | -34.0% |
| 3Y3 Years | -4.9% | -7.7% | -12.3% |
| 5Y5 Years | -3.3% | +38.2% | +33.7% |
AMPH Shares Outstanding Highs & Lows
| PeriodPeriod | HighHigh | Current vs Highvs High | LowLow | Current vs Lowvs Low | |
|---|---|---|---|---|---|
| 1M | 1-Month | 45.95M | at high | 45.95M | at low |
| 3M | 3-Month | 46.50M | -1.2% | 45.95M | at low |
| 6M | 6-Month | 47.14M | -2.5% | 45.95M | at low |
| 1Y | 1-Year | 48.08M | -4.4% | 45.95M | at low |
| 3Y | 3-Year | 48.96M | -6.2% | 45.95M | at low |
| 5Y | 5-Year | 49.02M | -6.3% | 45.95M | at low |
| All-Time | All-Time | 49.02M | -6.3% | 43.41M | +5.9% |
AMPH Shares Outstanding History
| Date | Value |
|---|---|
| Oct 2025 | 45.95M(-3.5%) |
| Dec 2024 | 47.62M(-0.9%) |
| Dec 2023 | 48.07M(-0.1%) |
| Dec 2022 | 48.11M(+0.8%) |
| Dec 2021 | 47.71M(+0.5%) |
| Dec 2020 | 47.50M(+2.0%) |
| Dec 2019 | 46.58M(-0.1%) |
| Date | Value |
|---|---|
| Dec 2018 | 46.63M(+0.0%) |
| Dec 2017 | 46.62M(+0.8%) |
| Dec 2016 | 46.25M(+2.3%) |
| Dec 2015 | 45.20M(+1.2%) |
| Dec 2014 | 44.65M(+2.9%) |
| Dec 2013 | 43.41M(0.0%) |
| Dec 2012 | 43.41M(0.0%) |
| Dec 2011 | 43.41M |
FAQ
- What are outstanding stocks?
- How many outstanding stocks does Amphastar Pharmaceuticals, Inc. have?
- What is Amphastar Pharmaceuticals, Inc. year-on-year outstanding stocks change?
- What is the all-time highest number of outstanding stocks for Amphastar Pharmaceuticals, Inc.?
What are outstanding stocks?
Outstanding stocks are the shares of a company that are currently owned by shareholders, including institutional investors and company insiders
How many outstanding stocks does Amphastar Pharmaceuticals, Inc. have?
As of today, Amphastar Pharmaceuticals, Inc. has 45.95M outstanding shares
What is Amphastar Pharmaceuticals, Inc. year-on-year outstanding stocks change?
Over the past year, the number of outstanding stocks of AMPH has changed by -2.13M (-4.43%)
What is the all-time highest number of outstanding stocks for Amphastar Pharmaceuticals, Inc.?
Amphastar Pharmaceuticals, Inc. historical maximum number of outstanding shares is 49.02M