# EDGAR Filing Document

**Accession Number:** 0001806952
**File Stem:** 9999999995-25-002413
**Filing Date:** 2025-7
**Character Count:** 1282
**Document Hash:** b8fbb704f92a3cc93be63ca87a73e405
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-002413.hdr.sgml**: 20250731

**ACCESSION NUMBER**: 9999999995-25-002413

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250730

**DATE AS OF CHANGE**: 20250731

**EFFECTIVENESS DATE**: 20250730

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Lyell Immunopharma, Inc.
- **CENTRAL INDEX KEY:** 0001806952
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 833006753
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-288769
- **FILM NUMBER:** 251169104

**BUSINESS ADDRESS:**
- **STREET 1:** 201 HASKINS WAY
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080
- **BUSINESS PHONE:** 650 695-0677

**MAIL ADDRESS:**
- **STREET 1:** 201 HASKINS WAY
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** July 30, 2025

**Time:** 16:00:00

**Form Type:** S-3

---

**CIK:** 0001806952

**Company Name:** Lyell Immunopharma, Inc.

**File Number:** 333-288769