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Lyell Immunopharma, Inc. (LYEL)

14.86 -0.14 (-0.93%)
At close: 4:00:01 PM EST
14.86 0.00 (0.00%)
After hours: 4:04:25 PM EST
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Key Executives

Amounts are as of December 31, 2025 and compensation values are for the last fiscal year ending on that date. Pay is salary, bonuses, etc. Exercised is the value of options exercised during the fiscal year. Currency in USD.
Name Title Pay Exercised Year Born
Dr. Richard D. Klausner M.D.
Founder & Executive Chairman 85k -- 1952
Dr. Lynn Seely M.D., Ph.D.
Principal Executive Officer, President, CEO & Director 1.13M -- 1959
Mr. Stephen J. Hill M.B.A.
Chief Operating Officer 830.56k -- 1971
Dr. Gary K. Lee Ph.D.
Chief Scientific Officer 786.8k -- 1977
Prof. Stanley R. Riddell M.D.
Founder & Scientific Advisor -- -- --
Dr. Crystal L. Mackall M.D.
Founder & Scientific Advisor -- -- 1961
Ms. Smital Shah M.B.A.
Principal Financial Officer, CFO & Chief Business Officer -- -- 1976
Nellie Dillery
Director of Accounting -- -- --
Mr. Mark A. Meltz J.D.
General Counsel & Corporate Secretary -- -- 1974
Ms. Ann Tomlin
Chief Human Resources Officer -- -- --

Lyell Immunopharma, Inc.

201 Haskins Way
Suite 101
South San Francisco, CA 94080
United States
650 695 0677 https://www.lyell.com
Sector: 
Healthcare
Industry: 
Biotechnology
Full Time Employees: 
161

Description

Lyell Immunopharma, Inc., a clinical-stage cell therapy company, develops chimeric antigen receptor (CAR) T-cell product candidates for patients with hematologic malignancies and solid tumors. The company's lead product candidate include rondecabtagene autoleucel, an autologous dual-targeting CD19/CD20 CAR T-cell therapy in development, which is in pivotal PiNACLE trial in the 3L+ setting and in a Phase 1/2 clinical trial in the 2L setting, as well as a second pivotal trial, PiNACLE-H2H, which is a Phase 3 head-to-head CAR T cell therapy randomized controlled trial of ronde-cel for LBCL in the 2L setting for the treatment of large B-cell lymphoma; and LYL273, a GCC-targeted CAR T-cell product candidate enhanced with CD19 CAR expression and controlled cytokine release designed to improve CAR T-cell expansion, immune cell infiltration, and cancer cell killing in the hostile solid tumor microenvironment, which is in Phase 1 clinical trial for the treatment of refractory metastatic colorectal cancer. The company develops therapies using various approaches, such as c-Jun overexpression and NR4A3 gene knockout, to endow functional resistance to exhaustion; Epi-R to generate population of stem-like T cells with reduced exhaustion and improved proliferation and antitumor activity; and CD62L positive enrichment to generate CAR T cells with enhanced antitumor activity. Lyell Immunopharma, Inc. was incorporated in 2018 and is headquartered in South San Francisco, California.

Corporate Governance

Lyell Immunopharma, Inc.’s ISS Governance QualityScore as of November 1, 2026 is 8. The pillar scores are Audit: 5; Board: 9; Shareholder Rights: 8; Compensation: 8.
Corporate governance scores courtesy of Institutional Shareholder Services (ISS) Scores indicate decile rank relative to index or region. A decile score of 1 indicates lower governance risk, while a 10 indicates higher governance risk.

Upcoming Events

November 4, 2026 at 9:00 PM UTC

Lyell Immunopharma, Inc. Earnings Date

Recent Events

November 4, 2026 at 12:00 AM UTC

10-Q: Periodic Financial Reports

September 10, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

August 6, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

July 17, 2026 at 12:00 AM UTC

CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission

July 13, 2026 at 12:00 AM UTC

S-3: Offering Registrations

June 15, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

May 6, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

April 24, 2026 at 12:00 AM UTC

DEFA14A: Proxy Statements

April 13, 2026 at 12:00 AM UTC

CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission

April 3, 2026 at 12:00 AM UTC

S-3: Offering Registrations

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