SLS - NASDAQ
SELLAS Life Sciences Group, Inc.
$8.19
-1.7%SELLAS Life Sciences Group, Inc., a late-stage biopharmaceutical company, focuses on the development of novel cancer immunotherapies for various cancer indications in the United States. Its lead product candidate is galinpepimut-S (GPS), a cancer immunotherapeutic agent that targets Wilms tumor 1, which is in Phase III clinical trials for the treatment of acute myeloid leukemia; and in Phase 1/2 clinical trials for the treatment for ovarian cancer. The company also develops nelipepimut-S, a cancer immunotherapy that targets human epidermal growth factor receptor 2, which is in Phase 2b clinical trials for the treatment of early-stage breast cancer. It has a strategic collaboration with Merck & Co., Inc. to evaluate GPS as it is administered in combination with PD1 blocker pembrolizumab in a Phase 1/2 clinical trial enrolling patients in up to five cancer indications, including hematologic malignancies and solid tumors. The company was founded in 2012 and is headquartered in New York, New York.
At a Glance
Live SnapshotSEC Filings
SLS - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
8-K 8-K 2026 N/A | June 02, 2026 | June 02, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 12, 2026 | May 12, 2026 | 2026 | |
10-Q 10-Q 2026 Q1 Q1 | May 12, 2026 | March 31, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | April 23, 2026 | June 16, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 19, 2026 | March 19, 2026 | 2026 | |
10-K 10-K 2025 FY FY | March 19, 2026 | December 31, 2025 | 2025 | |
8-K 8-K 2026 N/A | March 11, 2026 | March 11, 2026 | 2026 | |
8-K 8-K 2026 N/A | January 08, 2026 | January 07, 2026 | 2026 | |
8-K 8-K 2025 N/A | November 12, 2025 | November 12, 2025 | 2025 | |
10-Q 10-Q 2025 Q3 Q3 | November 12, 2025 | September 30, 2025 | 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.