LYEL - NASDAQ
Lyell Immunopharma, Inc.
$12.29
-17%Lyell Immunopharma, Inc., a T cell reprogramming company, engages in developing T cell therapies for patients with solid tumors. The company develops therapies using technology platforms, such as Gen-R, an ex vivo genetic reprogramming technology to overcome T cell exhaustion; and Epi-R, an ex vivo epigenetic reprogramming technology to generate population of T cells with durable stemness. Its pipeline includes LYL797, a T cell product candidate for the treatment of non-small cell lung cancer and triple negative breast cancers; LYL845, that targets multiple solid tumors; and NY-ESO-1 for synovial sarcoma and other solid tumor indications. The company entered into research and development collaboration and license agreement with GlaxoSmithKline for NY-ESO-1 program. Lyell Immunopharma, Inc. was incorporated in 2018 and is headquartered in South San Francisco, California.
At a Glance
Live SnapshotSEC Filings
LYEL - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
10-Q 10-Q 2026 Q1 Q1 | May 06, 2026 | March 31, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 06, 2026 | May 06, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | April 24, 2026 | June 10, 2026 | 2026 | |
S-3 S-3 N/A | April 03, 2026 | April 03, 2026 | ||
10-K 10-K 2025 FY FY | March 12, 2026 | December 31, 2025 | 2025 | |
8-K 8-K 2026 N/A | March 12, 2026 | March 12, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 09, 2026 | March 06, 2026 | 2026 | |
8-K 8-K 2025 N/A | December 08, 2025 | December 07, 2025 | 2025 | |
8-K 8-K 2025 N/A | December 05, 2025 | December 03, 2025 | 2025 | |
S-3 S-3 N/A | December 05, 2025 | December 05, 2025 |
Understanding SEC Filings
Essential regulatory documents for investors
SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.
Annual Report
Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.
Quarterly Report
Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.
Current Report
Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.
Proxy Statement
Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.
Registration Statement
Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.
Foreign Annual Report
Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.
Why SEC Filings Matter
- Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
- Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
- Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
- Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
- Historical Context: Years of filings provide trend analysis and context for current performance
Research Paths
Snapshot
Start with context, operating signals, and key market metrics.
Value Model
Stress test fair value across bear, base, and bull assumptions.
Statements
Validate revenue quality, margins, and balance sheet durability.
Earnings Call
Read management commentary and compare it with reported outcomes.
Dividends
Check payout sustainability and long-term distribution behavior.
Analyst Expectations
Review consensus spread and where estimate risk is concentrated.