Need Help? Talk to an Expert +1 (408) 836-7136

SLS   SELLAS Life Sciences Group, Inc.   |  1390478

Available Fillings Total Fillings:1210
Form Type Form Count
8-K 283
UPLOAD 32
DEFR14A 1
NT 10-K 3
NT 10-Q 1
10-Q 51
CORRESP 43
S-8 16
POS EX 5
S-3/A 7
RW 2
DEL AM 1
8-A12B 1
CT ORDER 12
SC 13D/A 3
SC 13D 2
425 13
SC 13G 21
424B2 3
8-K/A 14
POS AM 2
S-4 1
10-K 18
5 1
4/A 10
S-3MEF 2
ARS 5
S-1/A 9
S-1MEF 1
8-A12B/A 1
SCHEDULE 13G 2
SC 13G/A 30
DEFA14A 24
424B5 34
NO ACT 1
424B3 31
FWP 4
424B4 2
REGDEX 2
3 47
4 363
DEF 14A 21
10-K/A 6
EFFECT 27
10-Q/A 2
S-1 5
S-4/A 3
PRER14A 1
SCHEDULE 13G/A 1
D 5
S-3 24
PRE 14A 10
CERTNAS 1
Financials Total:374
Form Type Act Filing Date Report Date Action
8-K 34 10/03/2025 10/01/2025 |    |  
8-K 34 09/11/2025 09/10/2025 |    |  
8-K 34 08/12/2025 08/12/2025 |    |  
10-Q 34 08/12/2025 06/30/2025 |    |  
8-K 34 06/18/2025 06/17/2025 |    |  
8-K 34 05/13/2025 05/13/2025 |    |  
8-K 34 03/20/2025 03/20/2025 |    |  
10-K 34 03/20/2025 12/31/2024 |    |  
8-K 34 01/23/2025 01/23/2025 |    |  
8-K 34 01/16/2025 01/10/2025 |    |  
Ipos Total:104
Form Type Act Filing Date Report Date Action
S-3 33 10/10/2025 10/17/2025
S-3 33 03/28/2024 10/17/2025
S-3 33 03/28/2024 10/17/2025
CORRESP 04/27/2021 10/17/2025
UPLOAD 04/21/2021 10/17/2025
S-3 33 04/16/2021 10/17/2025
UPLOAD 08/21/2020 10/17/2025
CORRESP 08/21/2020 10/17/2025
S-3 33 08/14/2020 10/17/2025
CORRESP 06/09/2020 10/17/2025
Form Type Act Filing Date Report Date Action
4 06/13/2025 06/12/2025
4 06/02/2025 05/30/2025
4 05/22/2025 05/22/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
4 01/14/2025 01/10/2025
Form Type Act Filing Date Report Date Action
DEF 14A 34 04/23/2025 06/17/2025
SC 13G 34 02/07/2024 10/17/2025
DEF 14A 34 04/28/2023 06/20/2023
DEF 14A 34 04/25/2022 06/08/2022
DEF 14A 34 04/23/2021 06/08/2021
SC 13G 34 09/21/2020 10/17/2025
SC 13G 34 08/25/2020 10/17/2025
DEF 14A 34 04/23/2020 06/09/2020
SC 13G 34 01/17/2020 10/17/2025
DEF 14A 34 08/05/2019 09/10/2019
Form Type Act Filing Date Report Date Action
8-K 34 10/03/2025 10/01/2025 |    |  
8-K 34 09/11/2025 09/10/2025 |    |  
8-K 34 08/12/2025 08/12/2025 |    |  
8-K 34 06/18/2025 06/17/2025 |    |  
8-K 34 05/13/2025 05/13/2025 |    |  
8-K 34 03/20/2025 03/20/2025 |    |  
8-K 34 01/23/2025 01/23/2025 |    |  
8-K 34 01/16/2025 01/10/2025 |    |  
8-K 34 12/10/2024 12/10/2024 |    |  
8-K 34 11/13/2024 11/13/2024 |    |  
Form Type Act Filing Date Report Date Action
DEF 14A 34 04/23/2025 06/17/2025
DEF 14A 34 04/28/2023 06/20/2023
PRE 14A 34 04/17/2023 06/20/2023
DEF 14A 34 04/25/2022 06/08/2022
DEF 14A 34 04/23/2021 06/08/2021
DEF 14A 34 04/23/2020 06/09/2020
DEF 14A 34 08/05/2019 09/10/2019
PRE 14A 34 07/26/2019 09/10/2019
DEF 14A 34 05/24/2019 07/12/2019
DEF 14A 34 04/30/2018 06/12/2018
Form Type Act Filing Date Report Date Action
S-1 33 05/29/2020 10/17/2025
S-1/A 33 06/13/2019 10/17/2025
S-1/A 33 06/06/2019 10/17/2025
S-1 33 05/23/2019 10/17/2025
S-1/A 33 07/11/2018 10/17/2025
S-1/A 33 06/26/2018 10/17/2025
S-1 33 05/23/2018 10/17/2025
S-1/A 33 08/04/2008 10/17/2025
S-1 33 07/25/2008 10/17/2025
S-1/A 33 02/13/2008 10/17/2025