SLS SELLAS Life Sciences Group, Inc.companySEC Filings & Insider Trading Activity 2026
Latest SELLAS Life Sciences Group, Inc. (SLS) SEC EDGAR filings in 2026, including the most recent 10-K annual report filed on March 19, 2026, a 10-Q quarterly report filed on May 12, 2026, an 8-K current report filed on July 27, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for SELLAS Life Sciences Group, Inc. (SLS) (SEC CIK 1390478), with AI-powered section-by-section summaries updated daily.
Latest 2026 SEC Filing Dates
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Recent 8-K FilingsCurrent Reports
AI-powered analysis of SELLAS Life Sciences Group, Inc. (SLS) 8-K current reports disclosing material events.
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing Date | Period | Analysis | SEC |
|---|---|---|---|---|
8-K | Jul 27, 2026 | - | - | - |
8-K | Jun 25, 2026 | - | - | - |
8-K | Jun 18, 2026 | - | - | - |
8-K | Jun 2, 2026 | - | - | |
10-Q | May 12, 2026 | Mar 31, 2026 | - | |
8-K | May 12, 2026 | - | - | |
8-K | Mar 19, 2026 | - | Analysis | - |
10-K | Mar 19, 2026 | Dec 31, 2025 | - | |
8-K | Mar 11, 2026 | - | Analysis | - |
8-K | Jan 8, 2026 | - | - | |
10-Q | Nov 12, 2025 | Sep 30, 2025 | - | |
10-Q | Aug 12, 2025 | Jun 30, 2025 | - | |
10-Q | May 13, 2025 | Mar 31, 2025 | - | |
10-K | Mar 20, 2025 | Dec 31, 2024 | - | |
10-Q | Nov 13, 2024 | Sep 30, 2024 | - | |
10-Q | Aug 13, 2024 | Jun 30, 2024 | - | |
10-Q | May 14, 2024 | Mar 31, 2024 | - | |
10-K | Mar 28, 2024 | Dec 31, 2023 | - | |
SC 13G | Feb 7, 2024 | - | - | |
10-Q | Nov 9, 2023 | Sep 30, 2023 | - | |
10-Q | Aug 10, 2023 | Jun 30, 2023 | - | |
10-Q | May 11, 2023 | Mar 31, 2023 | - | |
10-K | Mar 16, 2023 | Dec 31, 2022 | - | |
10-Q | Nov 14, 2022 | Sep 30, 2022 | - | |
10-Q | Aug 11, 2022 | Jun 30, 2022 | - |
13F Fund Holdings: Quarterly Trend
Latest: Q1 2026Aggregate SLS share value held by 13F filers tracked by SignalX, by quarter.
- State Street Corp+6.21M (+284%)
- BlackRock+4.66M (+62%)
- Citadel Advisors LLC+2.89M (+145%)
- Bank of America Corp+540.7K (+536%)
- Morgan Stanley+445.4K (+50%)
- Two Sigma Investments679.0K (-63%)
- Millennium Management386.1K (-28%)
- Wells Fargo & Co73.6K (-25%)
- Citigroup29.8K (-54%)
- Fifth Third Bancorp+59.8K
- AQR Capital Management+54.0K
- Prudential Financial+28.7K
- Principal Financial Group+12.4K
- Marex Group plc+10.8K
- Vanguard Group Inc−8.47M
- Invesco Ltd−53.3K
- JPMorgan Chase & Co−49.5K
Source: 13F-HR filings on SEC EDGAR (aggregated from 96 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe.
Frequently Asked Questions
What are the latest SLS SEC filings in 2026?
SELLAS Life Sciences Group, Inc. (SLS) has filed a 10-K annual report on March 19, 2026, a 10-Q quarterly report on May 12, 2026, an 8-K current report on July 27, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.
When did SLS file its most recent 10-K annual report?
SELLAS Life Sciences Group, Inc. (SLS) filed its most recent 10-K annual report on March 19, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.
How do I view SLS 10-Q quarterly reports?
SELLAS Life Sciences Group, Inc. (SLS)'s most recent 10-Q quarterly report was filed on May 12, 2026. SignalX displays every SLS 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.
What 8-K current reports has SLS filed recently?
SELLAS Life Sciences Group, Inc. (SLS)'s most recent 8-K was filed on July 27, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.
Where can I find SLS insider trading activity (Form 4)?
SignalX aggregates every SLS Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.
How often does SLS file with the SEC?
SELLAS Life Sciences Group, Inc. (SLS) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new SLS filing with AI-powered analysis.
What is the difference between 10-K, 10-Q, and 8-K SEC filings?
A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs, such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for SELLAS Life Sciences Group, Inc. (SLS).
What is SLS's SEC CIK number?
SELLAS Life Sciences Group, Inc. (SLS)'s SEC CIK (Central Index Key) number is 1390478. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1390478 to look up all SLS filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.
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