# Filing Detail

Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001193125-25-277621
Filing Date
2025-11-12
Accepted
2025-11-12 16:15:24
Documents
78
Period of Report
2024-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K/A | cycn-20241231.htm iXBRL | 10-K/A | 1613081
2 | EX-23.1 | cycn-ex23_1.htm | EX-23.1 | 11135
3 | EX-31.1 | cycn-ex31_1.htm | EX-31.1 | 14718
4 | EX-31.2 | cycn-ex31_2.htm | EX-31.2 | 14971
5 | EX-32.1 | cycn-ex32_1.htm | EX-32.1 | 9140
6 | EX-32.2 | cycn-ex32_2.htm | EX-32.2 | 9155
| Complete submission text file | 0001193125-25-277621.txt |  | 8865662

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | cycn-20241231.xsd | EX-101.SCH | 1652538
80 | EXTRACTED XBRL INSTANCE DOCUMENT | cycn-20241231_htm.xml | XML | 1567012

Mailing Address 301 BINNEY STREET CAMBRIDGE MA 02142
Business Address 301 BINNEY STREET CAMBRIDGE MA 02142 617-621-7722
Cyclerion Therapeutics, Inc. (Filer) CIK: 0001755237 (see all company filings)

EIN.: 831895370 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-38787 | Film No.: 251472926
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)