Lyell Immunopharma names new finance chief

Lyell Immunopharma, Inc. appointed Smital Shah as its Chief Financial and Business Officer and principal financial officer, effective March 9, 2026, replacing the interim role previously held by CEO Lynn Seely, M.D.

Rhea-AI Filing Summary

Lyell Immunopharma, Inc. appointed Smital Shah as its Chief Financial and Business Officer and principal financial officer, effective March 9, 2026, replacing the interim role previously held by CEO Lynn Seely, M.D.

Under her offer letter, Shah will receive an initial annual base salary of $500,000 and a target annual bonus of up to 50% of base salary. She will also be granted an option to purchase 140,000 shares of common stock at fair market value on the grant date, vesting 25% after one year and the remainder in equal monthly installments over the following three years, contingent on continued employment.

Shah joins the company with prior senior finance and business leadership experience at ProQR Therapeutics, Gilead Sciences, major investment banks and other biotech roles, and will participate as a Tier I Employee in the company’s Officer Severance Plan.

Insights

Corporate governance and compensation analyst

Lyell installs an experienced finance leader with a standard equity package.

Lyell Immunopharma is formalizing its finance leadership by appointing Smital Shah as Chief Financial and Business Officer and principal financial officer, moving this responsibility from the CEO’s interim oversight. This can help strengthen financial oversight and external credibility, particularly for a clinical-stage or growth-focused biotech.

Her compensation structure combines a $500,000 base salary, a target bonus up to 50% of salary, and options on 140,000 shares vesting over four years. This aligns incentives with longer-term equity value while using the existing 2021 Equity Incentive Plan. Participation as a Tier I Employee in the Officer Severance Plan and a standard indemnification agreement match common market practice for senior executives.

Her background leading finance, business development and capital markets activities at ProQR Therapeutics, Gilead Sciences and investment banks suggests relevant experience for funding and strategic transactions. The timing and impact of any strategic or financing moves would depend on future decisions and are not detailed in this disclosure.

8-K Event Classification

2 items: 5.02, 9.01

2 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What executive leadership change did Lyell Immunopharma (LYEL) announce?

Lyell Immunopharma appointed Smital Shah as Chief Financial and Business Officer and principal financial officer, effective March 9, 2026. She replaces CEO Lynn Seely, M.D., who had been serving as interim principal financial officer, consolidating financial leadership under a dedicated executive.

What is Smital Shah’s compensation package at Lyell Immunopharma (LYEL)?

Smital Shah will receive a $500,000 initial annual base salary and a target annual bonus of up to 50% of base salary. She will also be granted an option to purchase 140,000 shares of common stock, with vesting over four years, subject to continued employment.

How do Smital Shah’s stock options at Lyell Immunopharma (LYEL) vest?

Her option to purchase 140,000 shares of Lyell common stock vests over four years. Twenty-five percent vests on the one-year anniversary of her employment commencement date, with the remaining 75% vesting in equal monthly installments thereafter, contingent on her continued employment.

What severance protections does Smital Shah have at Lyell Immunopharma (LYEL)?

Smital Shah will participate in Lyell’s Officer Severance Plan as a Tier I Employee. This plan, previously filed as an exhibit, sets out severance benefits for senior officers, aligning her protections with the company’s established executive framework.

What is Smital Shah’s background before joining Lyell Immunopharma (LYEL)?

Before joining Lyell, Smital Shah was Chief Business and Financial Officer at ProQR Therapeutics from 2014 to 2022, and previously worked at Gilead Sciences, Leerink Partners, JP Morgan and Johnson & Johnson. She also consulted for biotech and life sciences companies on finance and business strategy.

Under which equity plan are Smital Shah’s Lyell (LYEL) options granted?

Her option to purchase 140,000 shares of Lyell common stock will be granted under the company’s 2021 Equity Incentive Plan. The exercise price will equal the fair market value of Lyell’s common stock on the grant date, aligning her equity award with shareholder value at that time.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/09/2026 - 08:05 AM Learn about SEC filing dates

false 0001806952 0001806952 2026-03-06 2026-03-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 6, 2026

Lyell Immunopharma, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware		001-40502		83-1300510
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

201 Haskins Way
South San Francisco, California		94080
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: 650 695-0677

(Former Name or Former Address, if Changed Since Last Report)

Not Applicable

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, $0.0001 par value per share		LYEL		Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 6, 2026, the Board of Directors of Lyell Immunopharma, Inc. (the “Company”) approved the appointment of Smital Shah as the Company’s Chief Financial and Business Officer and principal financial officer, effective March 9, 2026. Lynn Seely, M.D., the Company’s President and Chief Executive Officer, previously served as interim principal financial officer.

In connection with Ms. Shah’s appointment as the Company’s Chief Financial and Business Officer, the Company and Ms. Shah entered into an offer letter that governs the terms of Ms. Shah’s at-will employment relationship with the Company. Pursuant to the offer letter, Ms. Shah is entitled to receive an initial annual base salary of $500,000 and a target annual bonus of up to 50% of her base salary. In addition, Ms. Shah will receive a stock option for 140,000 shares of common stock of the Company, with an exercise price equal to the fair market value of the common stock of the Company on the date of grant, to be granted under the Company’s 2021 Equity Incentive Plan. Twenty-five percent (25%) of the total shares subject to the option will vest on the one-year anniversary of Ms. Shah’s employment commencement date and an additional 1/48th of the total shares subject to the option will vest in equal monthly installments thereafter, subject to Ms. Shah remaining an employee of the Company on each applicable vesting date. Ms. Shah will participate in the Company’s Officer Severance Plan, as amended (filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (No. 001-40502)) as a Tier I Employee (as defined therein).

Prior to her appointment as the Company’s Chief Financial and Business Officer, Ms. Shah, 49, provided finance and business development consulting services to the Company since February 2026, and before that, since January 2023, served as an independent consultant to multiple biotech and life sciences companies on finance and business development strategy and operations. From October 2014 to December 2022, Ms. Shah served as Chief Business and Financial Officer of ProQR Therapeutics (Nasdaq: PRQR) overseeing all business functions related to finance, communications, commercial strategy, business development and legal. Previously, Ms. Shah managed the multi-billion-dollar debt, cash and investment portfolios of Gilead Sciences, Inc. Prior to Gilead, she was an investment banker at Leerink Partners and JP Morgan focused on capital raising and strategic transactions in the biotechnology space. Before that, Ms. Shah held various research and development roles at Johnson & Johnson Company. Ms. Shah holds a B.S. in Chemical Engineering from the University of Mumbai, an M.S. in Chemical Engineering from Virginia Tech and an M.B.A. in Finance from the University of California, Berkeley, Haas School of Business. Ms. Shah previously served on the Board of Directors of Pliant Therapeutics until June 2025 and was a Board Member and Chair of the Audit Committee at Graphite Bio until its merger with LENZ Therapeutics in March 2024.

The Company has also entered into its standard indemnification agreement with Ms. Shah in the form previously filed as Exhibit 10.9 to the Company’s Registration Statement on Form S-1 (No. 333-256470), as amended, filed with the Securities and Exchange Commission on May 25, 2021.

The foregoing summary of the offer letter does not purport to be a complete description of the offer letter and is qualified in its entirety by reference to the complete text of the offer letter, which is filed as Exhibit 10.1 hereto.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number		Description
10.1		Offer Letter, dated March 3, 2026, by and between Smital Shah and Lyell Immunopharma, Inc.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

						Lyell Immunopharma, Inc.
Date:  March 9, 2026				By:		/s/ Mark Meltz
						Mark Meltz
						General Counsel

Filing Exhibits & Attachments

4 documents

Agreements & Contracts

• EX-10.1 EX-10.1 24.9 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 2.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 16.8 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 10.6 KB