SELLAS Life Sciences SLS SEC Filings

NASDAQ SLS
$12.14 +0.16 (+1.34%)
At close: Oct 21, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing SELLAS Life Sciences Group, Inc. (SLS) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0001390478-26-000013Aug 11, 2026 4:07 PM
210-QQuarterly & Annual Report0001390478-26-000012Aug 11, 2026 4:01 PM
3SCHEDULE 13GBeneficial Ownership Report0000093751-26-000539Aug 7, 2026 2:56 PM
4SCHEDULE 13GBeneficial Ownership Report0002100119-26-001315Jul 31, 2026 1:07 PM
58-KCurrent Report0001104659-26-087110Jul 27, 2026 8:35 PM
68-KCurrent Report0001104659-26-077556Jun 25, 2026 12:30 PM
78-KCurrent Report0001104659-26-075775Jun 18, 2026 8:30 PM
84Insider Transaction0001104659-26-075773Jun 18, 2026 8:30 PM
9S-8Prospectus0001104659-26-074599Jun 16, 2026 8:30 PM
108-KCurrent Report0001104659-26-069251Jun 2, 2026 12:30 PM
118-KCurrent Report0001390478-26-000009May 12, 2026 8:07 PM
1210-QQuarterly & Annual Report0001390478-26-000008May 12, 2026 8:01 PM
13SCHEDULE 13GBeneficial Ownership Report0002012383-26-001466Apr 24, 2026 8:11 PM
14ARSOthers0001104659-26-047704Apr 23, 2026 8:12 PM
15DEFA14AOthers0001104659-26-047697Apr 23, 2026 8:10 PM
16DEF 14AOthers0001104659-26-047693Apr 23, 2026 8:09 PM
17SCHEDULE 13GBeneficial Ownership Report0000102909-26-002236Mar 27, 2026 5:00 PM
18S-3ASROthers0001104659-26-032776Mar 20, 2026 9:01 PM
198-KCurrent Report0001390478-26-000004Mar 19, 2026 8:08 PM
2010-KQuarterly & Annual Report0001390478-26-000003Mar 19, 2026 8:00 PM
218-KCurrent Report0001104659-26-026384Mar 11, 2026 8:06 PM
22SCHEDULE 13GBeneficial Ownership Report0001193125-26-053508Feb 17, 2026 3:34 PM
23SCHEDULE 13GBeneficial Ownership Report0001193125-26-053508Feb 17, 2026 3:34 PM
24SCHEDULE 13GBeneficial Ownership Report0001193125-26-053508Feb 17, 2026 3:34 PM
25SCHEDULE 13GBeneficial Ownership Report0000902664-26-000615Jan 30, 2026 9:15 PM
264Insider Transaction0001104659-26-002515Jan 9, 2026 9:43 PM
274Insider Transaction0001104659-26-002515Jan 9, 2026 9:43 PM
284Insider Transaction0001104659-26-002515Jan 9, 2026 9:43 PM
294Insider Transaction0001104659-26-002511Jan 9, 2026 9:39 PM
304Insider Transaction0001104659-26-002511Jan 9, 2026 9:39 PM
314Insider Transaction0001104659-26-002511Jan 9, 2026 9:39 PM
324Insider Transaction0001104659-26-002509Jan 9, 2026 9:38 PM
334Insider Transaction0001104659-26-002509Jan 9, 2026 9:38 PM
344Insider Transaction0001104659-26-002509Jan 9, 2026 9:38 PM
354Insider Transaction0001104659-26-002506Jan 9, 2026 9:35 PM
364Insider Transaction0001104659-26-002506Jan 9, 2026 9:35 PM
374Insider Transaction0001104659-26-002506Jan 9, 2026 9:35 PM
384Insider Transaction0001104659-26-002502Jan 9, 2026 9:33 PM
394Insider Transaction0001104659-26-002502Jan 9, 2026 9:33 PM
404Insider Transaction0001104659-26-002502Jan 9, 2026 9:33 PM
414Insider Transaction0001104659-26-002499Jan 9, 2026 9:31 PM
424Insider Transaction0001104659-26-002499Jan 9, 2026 9:31 PM
434Insider Transaction0001104659-26-002499Jan 9, 2026 9:31 PM
444Insider Transaction0001104659-26-002491Jan 9, 2026 9:30 PM
454Insider Transaction0001104659-26-002491Jan 9, 2026 9:30 PM
464Insider Transaction0001104659-26-002491Jan 9, 2026 9:30 PM
478-KCurrent Report0001104659-26-001957Jan 8, 2026 1:30 PM
484Insider Transaction0001104659-25-118882Dec 5, 2025 9:07 PM
494Insider Transaction0001104659-25-118878Dec 5, 2025 9:05 PM
504Insider Transaction0001104659-25-118872Dec 5, 2025 9:05 PM
...

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