Amphastar Pharmaceuticals (AMPH) Shares Outstanding (2013 - 2026)
Amphastar Pharmaceuticals (AMPH) posted Shares Outstanding of 43.64 million for Q2 2026, down 7.0% from 46.95 million a year earlier and down 3.7% from the prior quarter.
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Analysis
Amphastar Pharmaceuticals (AMPH) Shares Outstanding (2013 - 2026) Analysis & Trends
For FY2025, Amphastar Pharmaceuticals' Shares Outstanding came in at 46.74 million, down 3.5% from FY2024.
- Annual Shares Outstanding shows a five-year compound annual growth rate of -0.1% (FY2020 to FY2025).
- In prior years, Amphastar Pharmaceuticals' Shares Outstanding was 48.43 million in FY2024 (+0.3%), 48.27 million in FY2023 (-0.6%), 48.55 million in FY2022 (+1.6%) and 47.78 million in FY2021 (+1.6%).
- The Q2 2026 figure stands as the lowest quarterly Shares Outstanding since Q4 2014.
- On a year-over-year basis, Shares Outstanding has declined in each of the last six quarters, with an average decline of 3.1% over the last eight quarters.
- The strongest year-over-year quarter for Shares Outstanding in the past five years was Q2 2022, with growth of 2.4%; the weakest was Q2 2026, with a decline of 7.0%.
- According to Business Quant data, Shares Outstanding for the three prior quarters was 45.32 million (Q1 2026), 46.74 million (Q4 2025) and 46.47 million (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Qtr) |
|---|---|---|---|---|---|
| 1 | Johnson & Johnson | 645.01 Bn | 563.54 Bn | 17.26 Bn | 2.41 Bn |
| 2 | AbbVie | 465.23 Bn | 438.39 Bn | 12.70 Bn | 1.77 Bn |
| 3 | Merck | 368.40 Bn | 322.83 Bn | 12.21 Bn | 2.47 Bn |
| 4 | Novartis Ag | 278.02 Bn | 233.89 Bn | 11.24 Bn | 1.94 Bn |
| 5 | Astrazeneca | 254.57 Bn | 228.13 Bn | 12.86 Bn | 1.55 Bn |
| 6 | Amgen | 229.02 Bn | 184.42 Bn | 7.24 Bn | 540.00 Mn |
| 7 | Gilead Sciences | 187.74 Bn | 161.85 Bn | 6.22 Bn | 1.24 Bn |
| 8 | Pfizer | 163.75 Bn | 110.70 Bn | 10.94 Bn | 5.70 Bn |
| 9 | Vertex Pharmaceuticals | 133.45 Bn | 105.45 Bn | 2.84 Bn | 253.70 Mn |
| 10 | Amphastar Pharmaceuticals | 1.13 Bn | -6.34 Mn | 93.47 Mn | 43.64 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 43.64 Mn |
| Mar 31, 2026 | 45.32 Mn |
| Dec 31, 2025 | 46.74 Mn |
| Sep 30, 2025 | 46.47 Mn |
| Jun 30, 2025 | 46.95 Mn |
| Mar 31, 2025 | 47.64 Mn |
| Dec 31, 2024 | 48.43 Mn |
| Sep 30, 2024 | 48.62 Mn |
| Jun 30, 2024 | 48.91 Mn |
| Mar 31, 2024 | 48.21 Mn |
| Dec 31, 2023 | 48.27 Mn |
| Sep 30, 2023 | 48.70 Mn |
| Jun 30, 2023 | 48.40 Mn |
| Mar 31, 2023 | 48.00 Mn |
| Dec 31, 2022 | 48.55 Mn |
| Sep 30, 2022 | 48.90 Mn |
| Jun 30, 2022 | 48.86 Mn |
| Mar 31, 2022 | 48.14 Mn |
| Dec 31, 2021 | 47.78 Mn |
| Sep 30, 2021 | 48.02 Mn |
API Access
Amphastar Pharmaceuticals Shares Outstanding API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding&ticker=AMPH&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding", "ticker": "AMPH", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding&ticker=AMPH&period=max&api_key=YOUR_API_KEY");
const data = await res.json();