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Stocks · Health care · Pharmaceutical Preparations

Amphastar Pharmaceuticals, Inc.

AMPH Clue Score64
United States Fiscal year ends December CIK 0001297184
$26.62 +3.14% Close, 9 Oct 2026
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Price $26.62 +37.00% Close, 9 Oct 2026

Closing prices at the end of each trading day, from 12 Oct 2016. Not a live quote. Adjusted for share splits, so the line has no step at a split; dividends are not added back. P/E and P/FCF are the market value over the last full fiscal year's net income or free cash flow, as public on each day, so they step once a year when the annual report comes out. A hatched band marks a stretch with none: a year of net loss, or of cash burnt.

Revenue and profit

What the business sells, and what is left of it. Point at a year for the detail.
RevenueOperating incomeNet income
Fiscal year 2016Revenue255.2Operating income15.4Net income9.8EPS, diluted0.21Fiscal year 2017Revenue240.2 −5.9%Operating income−1.3Net income3.6 −62.9%EPS, diluted0.08 −61.9%Fiscal year 2018Revenue294.7 +22.7%Operating income−8.6Net income−5.7 −257.3%EPS, diluted−0.12 −250.0%Fiscal year 2019Revenue322.4 +9.4%Operating income−0.0Net income48.9EPS, diluted0.98Fiscal year 2020Revenue349.8 +8.5%Operating income11.0Net income1.4 −97.1%EPS, diluted0.03 −96.9%Fiscal year 2021Revenue437.8 +25.1%Operating income69.9Net income62.1 +4,327.4%EPS, diluted1.25 +4,066.7%Fiscal year 2022Revenue499.0 +14.0%Operating income107.5Net income91.4 +47.1%EPS, diluted1.74 +39.2%Fiscal year 2023Revenue644.4 +29.1%Operating income197.0Net income137.5 +50.5%EPS, diluted2.60 +49.4%Fiscal year 2024Revenue732.0 +13.6%Operating income205.4Net income159.5 +16.0%EPS, diluted3.06 +17.7%Fiscal year 2025Revenue719.9 −1.7%Operating income140.4Net income98.1 −38.5%EPS, diluted2.03 −33.7%
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Revenue 255.2 240.2 294.7 322.4 349.8 437.8 499.0 644.4 732.0 719.9
Growth −5.9% +22.7% +9.4% +8.5% +25.1% +14.0% +29.1% +13.6% −1.7%
Operating income 15.4 −1.3 −8.6 −0.0 11.0 69.9 107.5 197.0 205.4 140.4
Net income 9.8 3.6 −5.7 48.9 1.4 62.1 91.4 137.5 159.5 98.1
Growth −62.9% −257.3% −97.1% +4,327.4% +47.1% +50.5% +16.0% −38.5%
EPS, diluted 0.21 0.08 −0.12 0.98 0.03 1.25 1.74 2.60 3.06 2.03
Growth −61.9% −250.0% −96.9% +4,066.7% +39.2% +49.4% +17.7% −33.7%

Margins

How much of each dollar of revenue it keeps. Point at a year for the detail.
Gross marginOperating marginNet margin
Fiscal year 2016Gross margin40.8%Operating margin6.0%Net margin3.8%Free cash flow margin6.7%Fiscal year 2017Gross margin37.7%Operating margin−0.5%Net margin1.5%Free cash flow margin1.7%Fiscal year 2018Gross margin36.3%Operating margin−2.9%Net margin−1.9%Free cash flow margin−2.9%Fiscal year 2019Gross margin40.9%Operating margin−0.0%Net margin15.2%Free cash flow margin0.1%Fiscal year 2020Gross margin41.0%Operating margin3.1%Net margin0.4%Free cash flow margin6.7%Fiscal year 2021Gross margin45.6%Operating margin16.0%Net margin14.2%Free cash flow margin16.1%Fiscal year 2022Gross margin49.9%Operating margin21.5%Net margin18.3%Free cash flow margin13.1%Fiscal year 2023Gross margin54.5%Operating margin30.6%Net margin21.3%Free cash flow margin22.6%Fiscal year 2024Gross margin51.1%Operating margin28.1%Net margin21.8%Free cash flow margin23.5%Fiscal year 2025Gross margin49.5%Operating margin19.5%Net margin13.6%Free cash flow margin16.8%
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Gross margin 40.8% 37.7% 36.3% 40.9% 41.0% 45.6% 49.9% 54.5% 51.1% 49.5%
Operating margin 6.0% −0.5% −2.9% −0.0% 3.1% 16.0% 21.5% 30.6% 28.1% 19.5%
Net margin 3.8% 1.5% −1.9% 15.2% 0.4% 14.2% 18.3% 21.3% 21.8% 13.6%
Free cash flow margin 6.7% 1.7% −2.9% 0.1% 6.7% 16.1% 13.1% 22.6% 23.5% 16.8%

Cash flow

The cash the business makes, what it reinvests, and what it hands back. Point at a year for the detail.
Operating cash flowCapital expenditureFree cash flow
Fiscal year 2016Operating cash flow38.6Capital expenditure−21.4Free cash flow17.2Buybacks−9.9Fiscal year 2017Operating cash flow39.2Capital expenditure−35.1Free cash flow4.1 −76.1%Buybacks−30.7Fiscal year 2018Operating cash flow38.2Capital expenditure−46.8Free cash flow−8.6 −309.7%Buybacks−25.0Fiscal year 2019Operating cash flow41.8Capital expenditure−41.6Free cash flow0.2Buybacks−22.3Fiscal year 2020Operating cash flow57.3Capital expenditure−33.9Free cash flow23.4 +11,209.7%Buybacks−24.4Fiscal year 2021Operating cash flow98.0Capital expenditure−27.5Free cash flow70.5 +201.3%Buybacks−28.9Fiscal year 2022Operating cash flow89.2Capital expenditure−24.0Free cash flow65.1 −7.6%Buybacks−39.9Fiscal year 2023Operating cash flow183.5Capital expenditure−38.2Free cash flow145.3 +123.1%Buybacks−58.1Fiscal year 2024Operating cash flow213.4Capital expenditure−41.0Free cash flow172.3 +18.6%Buybacks−85.5Fiscal year 2025Operating cash flow156.1Capital expenditure−34.9Free cash flow121.2 −29.7%Buybacks−75.6
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating cash flow 38.6 39.2 38.2 41.8 57.3 98.0 89.2 183.5 213.4 156.1
Capital expenditure −21.4 −35.1 −46.8 −41.6 −33.9 −27.5 −24.0 −38.2 −41.0 −34.9
Free cash flow 17.2 4.1 −8.6 0.2 23.4 70.5 65.1 145.3 172.3 121.2
Growth −76.1% −309.7% +11,209.7% +201.3% −7.6% +123.1% +18.6% −29.7%
Buybacks −9.9 −30.7 −25.0 −22.3 −24.4 −28.9 −39.9 −58.1 −85.5 −75.6

Balance sheet

What it holds against what it owes, at each year end. Point at a year for the detail.
CashTotal debt
Fiscal year 2016Cash72.4Total debt36.0Net cash (debt)36.3Shareholders’ equity329.3Debt to equity0.11Fiscal year 2017Cash65.6Total debt45.7Net cash (debt)19.9Shareholders’ equity333.7Debt to equity0.14Fiscal year 2018Cash86.3Total debt49.1Net cash (debt)37.2Shareholders’ equity332.4Debt to equity0.15Fiscal year 2019Cash73.7Total debt46.3Net cash (debt)27.4Shareholders’ equity381.4Debt to equity0.12Fiscal year 2020Cash92.6Total debt45.9Net cash (debt)46.7Shareholders’ equity402.3Debt to equity0.11Fiscal year 2021Cash126.4Total debt78.2Net cash (debt)48.2Shareholders’ equity445.5Debt to equity0.18Fiscal year 2022Cash156.1Total debt76.6Net cash (debt)79.5Shareholders’ equity528.7Debt to equity0.14Fiscal year 2023Cash144.3Total debt603.2Net cash (debt)−458.9Shareholders’ equity639.4Debt to equity0.94Fiscal year 2024Cash151.6Total debt613.5Net cash (debt)−461.9Shareholders’ equity732.3Debt to equity0.84Fiscal year 2025Cash170.2Total debt619.7Net cash (debt)−449.5Shareholders’ equity788.8Debt to equity0.79
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Cash 72.4 65.6 86.3 73.7 92.6 126.4 156.1 144.3 151.6 170.2
Total debt 36.0 45.7 49.1 46.3 45.9 78.2 76.6 603.2 613.5 619.7
Net cash (debt) 36.3 19.9 37.2 27.4 46.7 48.2 79.5 −458.9 −461.9 −449.5
Shareholders’ equity 329.3 333.7 332.4 381.4 402.3 445.5 528.7 639.4 732.3 788.8
Debt to equity 0.11 0.14 0.15 0.12 0.11 0.18 0.14 0.94 0.84 0.79

In millions of USD, except per-share figures and ratios. Fiscal years, as last filed with the SEC.

Financial statements FY2025 · 10-K

Ratios

Percentages worked out from the filed figures; debt to equity in times. Fiscal years ending December, each column as last filed with the SEC.
Click a line to chart it
Fiscal year FY2016 31 Dec 2016 FY2017 31 Dec 2017 FY2018 31 Dec 2018 FY2019 31 Dec 2019 FY2020 31 Dec 2020 FY2021 31 Dec 2021 FY2022 31 Dec 2022 FY2023 31 Dec 2023 FY2024 31 Dec 2024 FY2025 31 Dec 2025
Margins
40.8% 37.7% 36.3% 40.9% 41.0% 45.6% 49.9% 54.5% 51.1% 49.5%
6.0% −0.5% −2.9% −0.0% 3.1% 16.0% 21.5% 30.6% 28.1% 19.5%
5.7% 0.5% −3.4% 18.7% 1.3% 19.2% 23.3% 26.6% 25.9% 17.2%
3.8% 1.5% −1.9% 15.2% 0.4% 14.2% 18.3% 21.3% 21.8% 13.6%
6.7% 1.7% −2.9% 0.1% 6.7% 16.1% 13.1% 22.6% 23.5% 16.8%
Spending
16.3% 18.1% 19.5% 21.4% 19.2% 13.9% 15.0% 11.4% 10.1% 11.9%
16.4% 18.5% 16.9% 15.6% 14.4% 11.7% 9.0% 8.0% 7.7% 11.9%
8.4% 14.6% 15.9% 12.9% 9.7% 6.3% 4.8% 5.9% 5.6% 4.8%
32.9% −192.0% n/a 22.8% 76.3% 24.5% 20.2% 18.6% 15.6% 20.7%
Returns
3.0% 1.1% −1.7% 12.8% 0.3% 13.9% 17.3% 21.5% 21.8% 12.4%
2.3% 0.8% −1.1% 8.3% 0.2% 9.2% 12.3% 9.1% 10.1% 6.0%
Balance and payout
0.11 0.14 0.15 0.12 0.11 0.18 0.14 0.94 0.84 0.79
23.0% 26.0% 29.1% 27.2% 28.9% 33.7% 28.8% 57.7% 53.6% 51.6%
57.7% 748.1% n/a 10,768.6% 104.3% 40.9% 61.3% 40.0% 49.6% 62.3%