---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-043467"
form_type: "8-K"
ticker: "LYEL"
cik: "0001806952"
company_name: "Lyell Immunopharma, Inc."
filed_at: "2022-02-15T23:59:59+00:00"
generated_at: "2026-06-27T08:05:51.800368+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Lyell Immunopharma amends Officer Severance Plan, adds tiered benefits

## Summary
- Amended severance plan: Tier I gets pro-rated bonus; Tier II & III get base salary and COBRA outside CIC.
- During CIC Protection Period: Tier I receives target bonus; Tier III vesting acceleration increased to 100% (from 75%).
- 2022 base salaries effective Mar 1: Homans $600k, Hill $504k, Turner $473k.
- 2021 bonuses awarded: Homans $433,836; Klausner $222,007; Hill $346,775; Turner $295,925.

## SEC filing metadata
- accession: 0001193125-22-043467
- form_type: 8-K
- ticker: LYEL
- cik: 0001806952
- company_name: Lyell Immunopharma, Inc.
- filed_at: 2022-02-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1806952/000119312522043467/0001193125-22-043467-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1806952/000119312522043467/d221882d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-043467
- JSON: https://secwatch.observer/filing/0001193125-22-043467.json
- Plain text: https://secwatch.observer/filing/0001193125-22-043467.txt

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