---
schema_version: "secwatch.filing_event.v1"
accession: "0001297184-24-000033"
form_type: "8-K"
ticker: "AMPH"
cik: "0001297184"
company_name: "Amphastar Pharmaceuticals, Inc."
filed_at: "2024-05-08T23:59:59+00:00"
generated_at: "2026-06-02T08:51:57.975274+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Amphastar Q1 2024 net revenue $171.8M, GAAP EPS $0.81, adjusted EPS $1.04

## Summary
- Net revenues of $171.8M vs $140.0M in Q1 2023, up 23% YoY.
- GAAP net income $43.2M ($0.81 dil EPS) vs $26.0M ($0.50) a year ago.
- Adjusted non-GAAP net income $55.3M ($1.04 dil EPS) vs $32.1M ($0.62) YoY.
- BAQSIMI revenue grew 22% over Eli Lilly's reported Q1 2023 revenue.
- No forward guidance provided in the release.

## SEC filing metadata
- accession: 0001297184-24-000033
- form_type: 8-K
- ticker: AMPH
- cik: 0001297184
- company_name: Amphastar Pharmaceuticals, Inc.
- filed_at: 2024-05-08T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1297184/000129718424000033/0001297184-24-000033-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1297184/000129718424000033/amph-20240508x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001297184-24-000033
- JSON: https://secwatch.observer/filing/0001297184-24-000033.json
- Plain text: https://secwatch.observer/filing/0001297184-24-000033.txt

## Key facts
- Earnings Releases
  Amphastar Pharmaceuticals, Inc. reported the three months ended March 31, 2024 results: revenue $171.8 million, net income $43.2 million, EPS $0.81 per share.
  - Period: the three months ended March 31, 2024
  - Revenue: $171.8 million
  - Net income: $43.2 million
  - EPS: $0.81 per share
  - Result: reported results
  source text: Amphastar Pharmaceuticals, Inc. (NASDAQ: AMPH) (“Amphastar” or the “Company”) today reported results for the three months ended March 31, 2024. ​ First Quarter Highlights ​ ● Net revenues of $171.8 million for the first quarter ● GAAP net income of $43.2 million, or $0.81 per share, for the first quarter
  evidence_url: https://www.sec.gov/Archives/edgar/data/1297184/000129718424000033/0001297184-24-000033-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.