Companies: 10,795·Total market cap: $144.5T
Amphastar Pharmaceuticals, Inc.

Amphastar Pharmaceuticals, Inc.

AMPHNASDAQHealthcare● Active
$19.74
+$1.04(+5.56%)
Market Cap$870394221
P/E Ratio
52W High$31.26
52W Low$16.65
SEC Filings

Amphastar Pharmaceuticals, Inc. (AMPH) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001297184 · AMPH · NASDAQ · as of Jun 8, 2026

Filing snapshot

936
Total Filings
4
Latest Form
2026-06-03
Most Recent
2014
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001297184 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-02-26
Fiscal Year End
Feb 26, 2026
Accession No.
0001297184-26-000009
Primary Document
amph-20251231x10k.htm
Source: data.sec.gov · CIK 0001297184 · Accession 0001297184-26-000009

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-07
8-KCurrent Report
8-K
2026-06-03Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
8-KCurrent Report
8-K
2026-06-03
View
10-QQuarterly Report
10-Q
2026-05-07
View
8-KCurrent Report
8-K
2026-05-07
View
ARSARS
ARS
2026-04-13
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-13
View
DEF 14AProxy Statement
DEF 14A
2026-04-13
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-03-26
View
8-KCurrent Report
8-K
2026-03-16
View
8-KCurrent Report
8-K
2026-03-06
View
8-KCurrent Report
8-K
2026-03-06
View
10-KAnnual Report
10-K
2026-02-26
View
8-KCurrent Report
8-K
2026-02-26
View
8-KCurrent Report
8-K
2026-01-12
View
10-QQuarterly Report
10-Q
2025-11-06
View
8-KCurrent Report
8-K
2025-11-06
View
Showing 1–15 of 303 filingsForm 4 / 144 hidden· 936 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001297184  |  Exchange: NASDAQ · Healthcare

Amphastar Pharmaceuticals, Inc. (NASDAQ: AMPH) has submitted 936 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2014. As a Healthcare sector company with CIK 0001297184, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Amphastar Pharmaceuticals, Inc.'s most comprehensive regulatory disclosure. The most recent Amphastar Pharmaceuticals, Inc. 10-K was filed on 2026-02-26 for fiscal year ending 2026. Historical AMPH 10-K annual reports are available from 2005 through 2026.

Investors researching Amphastar Pharmaceuticals, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

AMPH SEC Filings · 8 questions

Amphastar Pharmaceuticals, Inc. (AMPH) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 936 filings and access original documents at no cost. Amphastar Pharmaceuticals, Inc.'s CIK is 0001297184.

AMPH SEC filingsAmphastar Pharmaceuticals, Inc. SEC documentsfind AMPH 10-K