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Amphastar Pharmaceuticals, Inc.: filings

Every Amphastar Pharmaceuticals, Inc. annual and quarterly report in the SEC record with the published financial measures it tagged, 49 filings, each linked to its SEC index.

Filings with published measures

Each page shows what one filing reported, as tagged in that filing, with the periods it covered. Later filings can restate a value; the company overview shows the latest-filed value per period.

FormFiledFiscal periodMeasuresFactsSEC accession
10-Q2026-08-06fiscal Q2 2026571610001297184-26-000047
10-Q2026-05-07fiscal Q1 2026571200001297184-26-000033
10-K2026-02-26fiscal FY 2025591540001297184-26-000009
10-Q2025-11-06fiscal Q3 2025551610001297184-25-000064
10-Q2025-08-07fiscal Q2 2025551570001297184-25-000050
10-Q2025-05-08fiscal Q1 2025551140001297184-25-000029
10-K2025-03-03fiscal FY 2024581530001297184-25-000008
10-Q2024-11-07fiscal Q3 2024551610001297184-24-000058
10-Q2024-08-09fiscal Q2 2024551570001297184-24-000048
10-Q2024-05-10fiscal Q1 2024551140001297184-24-000037
10-K2024-02-29fiscal FY 2023601570001297184-24-000009
10-Q2023-11-08fiscal Q3 2023561630001297184-23-000082
10-Q2023-08-09fiscal Q2 2023561590001297184-23-000066
10-Q2023-05-09fiscal Q1 2023561170001297184-23-000049
10-K2023-03-01fiscal FY 2022601580001297184-23-000019
10-Q2022-11-08fiscal Q3 2022561650001297184-22-000056
10-Q2022-08-09fiscal Q2 2022561610001297184-22-000044
10-Q2022-05-10fiscal Q1 2022561170001297184-22-000029
10-K2022-03-11fiscal FY 2021611600001297184-22-000007
10-Q2021-11-09fiscal Q3 2021571670001297184-21-000064
10-Q2021-08-09fiscal Q2 2021571630001297184-21-000048
10-Q2021-05-07fiscal Q1 2021571190001297184-21-000031
10-K2021-03-15fiscal FY 2020611590001297184-21-000008
10-Q2020-11-06fiscal Q3 2020571670001297184-20-000056
10-Q2020-08-07fiscal Q2 2020571630001297184-20-000047
10-Q2020-05-11fiscal Q1 2020571190001297184-20-000027
10-K2020-03-16fiscal FY 2019612130001297184-20-000007
10-Q2019-11-08fiscal Q3 2019571560001297184-19-000044
10-Q2019-08-09fiscal Q2 2019571560001297184-19-000038
10-Q2019-05-10fiscal Q1 2019571160001297184-19-000027
10-K2019-03-15fiscal FY 2018562050001297184-19-000013
10-Q2018-11-09fiscal Q3 2018531490001297184-18-000050
10-Q2018-08-09fiscal Q2 2018511390001297184-18-000043
10-Q2018-05-10fiscal Q1 2018511050001297184-18-000029
10-K2018-03-14fiscal FY 2017521870001297184-18-000011
10-Q2017-11-09fiscal Q3 2017501370001297184-17-000035
10-Q2017-08-09fiscal Q2 2017461290001297184-17-000028
10-Q2017-05-10fiscal Q1 201746950001558370-17-004032
10-K2017-03-15fiscal FY 2016481750001297184-17-000007
10-Q2016-11-09fiscal Q3 2016461290001558370-16-009753
10-Q2016-08-09fiscal Q2 2016461290001558370-16-007706
10-Q2016-05-10fiscal Q1 201646950001558370-16-005745
10-K2016-03-15fiscal FY 2015491740001558370-16-004146
10-Q2015-11-13fiscal Q3 2015471280001558370-15-002652
10-Q2015-08-13fiscal Q2 2015471280001171843-15-004674
10-Q2015-05-14fiscal Q1 201544900001171843-15-002835
10-K2015-03-26fiscal FY 2014481710001171843-15-001654
10-Q2014-11-13fiscal Q3 2014461230001171843-14-005537
10-Q2014-08-13fiscal Q2 2014451210001171843-14-003951

Inspect the source

Entity
Amphastar Pharmaceuticals, Inc. / CIK 0001297184
Captured
2026-09-20T07:50:28.316Z
SEC response SHA-256
4edb9fcf1f4d33d8901a1aee21727ab07b6978219daa713c8278848d43d84326

Current SEC company facts · Download the original response snapshot (gzip) · Download the selected JSON

Every published concept a filing tagged, with the periods it covered, as reported in that filing at capture time. Forms 10-K, 10-K/A, 10-Q, 10-Q/A, 20-F, 20-F/A, 40-F, 40-F/A. A filing page needs at least 8 published concepts. Later filings can restate these values; the company history pages show the latest-filed value per period.

Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.

Use this in research

A financial period ends before its results become public. Use the filing date as a minimum availability boundary, inspect amendments, and retain the original filing vintage when testing historical signals. This latest-filed selection can contain information unavailable at the time.

These pages do not supply prices, total-return histories, corporate-action adjustments or a tradable universe. Build those inputs separately before evaluating a strategy. A profitable backtest can still reflect selection bias or costs that were left out.

Research methodology · Execution and cost assumptions · Check backtest overfitting

Build with the open-source tools

Use these accounting records as inspectable inputs. When you have constructed a return series, the validation tools can help test its statistical evidence and preserve the result with its limitations.

Read the published dataset with Python
import json
from urllib.request import urlopen

with urlopen("https://canlicapital.com/company-data/0001297184.json") as response:
    record = json.load(response)
print(record["fetched_at"])
print(record["policy"])
for concept in record["concepts"]:
    print(concept["tag"], next(iter(concept["observations"])))