---
schema_version: "secwatch.filing_event.v1"
accession: "0001297184-22-000032"
form_type: "8-K"
ticker: "AMPH"
cik: "0001297184"
company_name: "Amphastar Pharmaceuticals, Inc."
filed_at: "2022-06-13T23:59:59+00:00"
generated_at: "2026-06-25T02:15:52.255747+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Amphastar stockholders elect three Class III directors, ratify auditor, approve say-on-pay at 2022 annual meeting

## Summary
- Elected directors Jack Zhang, Richard Prins, Diane Gerst; Zhang received 31,356,354 for, Prins 28,273,064, Gerst 25,594,041.
- Ratified Ernst & Young as independent auditor for FY2022; 42,659,628 for, 696,578 against.
- Advisory vote on executive compensation approved with 37,248,485 for, 1,247,234 against.

## SEC filing metadata
- accession: 0001297184-22-000032
- form_type: 8-K
- ticker: AMPH
- cik: 0001297184
- company_name: Amphastar Pharmaceuticals, Inc.
- filed_at: 2022-06-13T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1297184/000129718422000032/0001297184-22-000032-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1297184/000129718422000032/amph-20220610x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001297184-22-000032
- JSON: https://secwatch.observer/filing/0001297184-22-000032.json
- Plain text: https://secwatch.observer/filing/0001297184-22-000032.txt

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