# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000950170-25-032037
Filing Date
2025-03-04
Accepted
2025-03-04 16:15:24
Documents
85
Period of Report
2024-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | cycn-20241231.htm iXBRL | 10-K | 2315762
2 | EX-4.1 | cycn-ex4_1.htm | EX-4.1 | 33792
3 | EX-19 | cycn-ex19.htm | EX-19 | 83474
4 | EX-21.1 | cycn-ex21_1.htm | EX-21.1 | 2311
5 | EX-23.1 | cycn-ex23_1.htm | EX-23.1 | 11279
6 | EX-31.1 | cycn-ex31_1.htm | EX-31.1 | 13867
7 | EX-31.2 | cycn-ex31_2.htm | EX-31.2 | 14123
8 | EX-32.1 | cycn-ex32_1.htm | EX-32.1 | 8259
9 | EX-32.2 | cycn-ex32_2.htm | EX-32.2 | 8274
10 | GRAPHIC | img152431147_0.jpg | GRAPHIC | 29803
| Complete submission text file | 0000950170-25-032037.txt |  | 9943461

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
11 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | cycn-20241231.xsd | EX-101.SCH | 1648065
87 | EXTRACTED XBRL INSTANCE DOCUMENT | cycn-20241231_htm.xml | XML | 1528239

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 | Act: 34 | File No.: 001-38787 | Film No.: 25704604
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)