Amphastar Pharmaceuticals, Inc. (AMPH) Revenue History
Annual and quarterly revenue from 2012 to present
AMPH Revenue Over Time (2012–2025)
AMPH Revenue Growth History
10 of 13 years with positive growth- FY2012 revenue growth
- N/A
- FY2013 revenue growth
- +12.4%
- FY2014 revenue growth
- -8.4%
- FY2015 revenue growth
- +19.5%
- FY2016 revenue growth
- +1.4%
- FY2017 revenue growth
- -5.9%
- FY2018 revenue growth
- +22.7%
- FY2019 revenue growth
- +9.4%
- FY2020 revenue growth
- +8.5%
- FY2021 revenue growth
- +25.1%
- FY2022 revenue growth
- +14.0%
- FY2023 revenue growth
- +29.1%
- FY2024 revenue growth
- +13.6%
- FY2025 revenue growth
- -1.7%
| Quarter | Revenue | YoY |
|---|---|---|
| Q1 2026 | $171.2M | +0.4% |
| Q4 2025 | $183.1M | -1.8% |
| Q3 2025 | $191.8M | +1.6% |
| Q2 2025 | $174.4M | -4.4% |
| Q1 2025 | $170.5M | -0.8% |
| Q4 2024 | $186.5M | +4.7% |
| Q3 2024 | $188.8M | +4.6% |
| Q2 2024 | $182.4M | +25.2% |
Multi-year avg. share of annual revenue by fiscal quarter
Revenue Breakdown (FY 2025)
AMPH's revenue distribution by segment and geography for fiscal year 2025
By Product/Segment
By Geography
AMPH Revenue Analysis (2012–2025)
Current Revenue & Growth
As of June 23, 2026, Amphastar Pharmaceuticals, Inc. (AMPH) generated trailing twelve-month (TTM) revenue of $720.5 million, reflecting modest growth of +0.4% year-over-year. The most recent quarter (Q1 2026) recorded $171.2 million in revenue, down 6.5% sequentially.
Historical Growth Trajectory
AMPH's 5-year compound annual growth rate (CAGR) stands at +15.5%, indicating consistent double-digit revenue growth. The 3-year CAGR of +13.0% is below the 5-year average, signalling a growth deceleration in recent years. Amphastar Pharmaceuticals, Inc.'s highest annual revenue of $732.0 million was recorded in 2024.
Revenue by Segment
AMPH's revenue is primarily driven by Epinephrine (100%). With over half of revenue concentrated in Epinephrine, the company has a focused business model while developing other growth vectors.
Peer Comparison
Compared to Healthcare sector peers — including LNTH (+0.6% YoY), PCRX (+4.6% YoY), and PRGO (-3.6% YoY) — AMPH has underperformed the peer group in revenue growth. Compare AMPH vs LNTH →
AMPH Revenue vs Peers
Revenue metrics vs comparable public companies
| Company | TTM Revenue | YoY Growth | 5Y CAGR | Op. Margin | Compare |
|---|---|---|---|---|---|
| AMPHCurrent | $721M | +0.4% | +15.5% | 19.5% | |
 LNTH | $1.5B | +0.6% | +35.3% | 20.2% | |
 PCRX | $726M | +4.6% | +11.1% | 4.6% | |
 PRGO | $4.3B | -3.6% | +0.8% | 8.1% | |
 SUPN | $719M | +16.3% | +6.7% | -5.1% |
AMPH Historical Revenue Data (2012–2025)
| Year | Revenue | YoY % | Gross Profit | Gross Margin | Op. Income | Op. Margin |
|---|---|---|---|---|---|---|
| 2025 | $719.9M | -1.7% | $356.1M | 49.5% | $140.4M | 19.5% |
| 2024 | $732.0M | +13.6% | $373.9M | 51.1% | $205.4M | 28.1% |
| 2023 | $644.4M | +29.1% | $351.1M | 54.5% | $197.0M | 30.6% |
| 2022 | $499.0M | +14.0% | $248.9M | 49.9% | $107.5M | 21.5% |
| 2021 | $437.8M | +25.1% | $199.7M | 45.6% | $69.9M | 16.0% |
| 2020 | $349.8M | +8.5% | $143.3M | 41.0% | $11.0M | 3.1% |
| 2019 | $322.4M | +9.4% | $131.9M | 40.9% | $-39,000 | -0.0% |
| 2018 | $294.7M | +22.7% | $107.0M | 36.3% | $-8,623,000 | -2.9% |
| 2017 | $240.2M | -5.9% | $90.8M | 37.8% | $-895,000 | -0.4% |
| 2016 | $255.2M | +1.4% | $104.2M | 40.8% | $15.7M | 6.1% |
| 2015 | $251.5M | +19.5% | $77.3M | 30.8% | $-6,898,000 | -2.7% |
| 2014 | $210.5M | -8.4% | $51.3M | 24.4% | $-17,983,000 | -8.5% |
| 2013 | $229.7M | +12.4% | $87.0M | 37.9% | $17.5M | 7.6% |
| 2012 | $204.3M | - | $90.3M | 44.2% | $25.4M | 12.4% |
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
14+ years return with dividends reinvested.
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Peer Comparison
Compare growth, multiples, and margins vs sector.
AMPH — Frequently Asked Questions
Quick answers to the most common questions about buying AMPH stock.
Is AMPH's revenue growth accelerating or slowing?
AMPH revenue growth is slowing. TTM revenue is $721M, up +0.4% year-over-year — below the 5-year CAGR of +15.5%. The deceleration suggests maturing end-markets or increased competition.
What is AMPH's revenue history from 2012 to 2026?
Amphastar Pharmaceuticals, Inc. (AMPH) revenue history spans 2012 to 2026. TTM revenue as of 2026 is $721M, growing at +0.4% YoY. The 5-year CAGR is +15.5%. Complete annual and quarterly revenue figures are available on this page, including gross profit, operating income, and margin trends.
What is AMPH's long-term revenue growth rate (CAGR)?
Amphastar Pharmaceuticals, Inc.'s 5-year revenue CAGR of +15.5% reflects the variable nature of its business expansion. As of 2026, the current YoY growth rate of +0.4% is below this long-term average. CAGR is the most reliable measure of sustained revenue momentum for AMPH.
Why does AMPH's quarterly revenue fluctuate?
AMPH quarterly revenue can fluctuate significantly between periods. A quarter-over-quarter (QoQ) change does not always indicate a trend; comparing the same quarter year-over-year (YoY) is a more reliable signal for underlying growth. Amphastar Pharmaceuticals, Inc.'s revenue data from 2012 to 2026 shows full historical quarterly detail on this page.
How is AMPH's revenue distributed by segment?
AMPH reports revenue broken down by product line and geographic region. The segment breakdown on this page shows which business units contribute the most to total revenue as of the latest fiscal year. Concentration in a single segment above 50% indicates category dependence, while a diversified mix signals more resilient revenue streams.
How does AMPH's revenue compare to industry peers?
Amphastar Pharmaceuticals, Inc. (AMPH) with TTM revenue of $721M and +0.4% YoY growth can be benchmarked against sector peers using the comparison table on this page. Revenue growth relative to peers indicates market share gains or losses. The peer section shows TTM revenue, YoY growth, and operating margin for direct comparisons.