---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-112812"
form_type: "8-K"
ticker: "LNTH"
cik: "0001521036"
company_name: "Lantheus Holdings, Inc."
filed_at: "2025-05-05T23:59:59+00:00"
generated_at: "2026-05-22T17:12:26.757553+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Lantheus stockholders elect four Class I directors and approve board declassification proposal

## Summary
- All four nominees elected: Mary Anne Heino (54.3M for), Dr. Gérard Ber (57.2M for), Julie Eastland (56.1M for), Samuel Leno (41.5M for).
- Advisory say-on-pay approved with 57.8M for, 2.8M against; Deloitte ratified as auditor with 64.2M for.
- Stockholder proposal to declassify board approved on advisory basis: 59.3M for, 0.7M against.
- Bylaws amended to add procedural requirements for special meetings and update director nomination/proxy access rules.
- Board size automatically reduces upon vacancy to conform to amended Delaware General Corporation Law.

## SEC filing metadata
- accession: 0001193125-25-112812
- form_type: 8-K
- ticker: LNTH
- cik: 0001521036
- company_name: Lantheus Holdings, Inc.
- filed_at: 2025-05-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.03, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1521036/000119312525112812/0001193125-25-112812-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1521036/000119312525112812/d20698d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-112812
- JSON: https://secwatch.observer/filing/0001193125-25-112812.json
- Plain text: https://secwatch.observer/filing/0001193125-25-112812.txt

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