Cyclerion Therapeutics, Inc. — Investor Relations & Filings
Listed
IPO Apr 2019
Filings indexed
339
across all filing types
Latest filing
2025-02-13
Regulatory Filings
Country
US
United States of America
Listing
US
CYCN
Cyclerion Therapeutics, Inc. is a biopharmaceutical company dedicated to advancing personalized therapeutic approaches for neuropsychiatric disorders. The company's primary focus is on developing a treatment for people with Treatment-Resistant Depression (TRD). Its lead program utilizes a method that combines generic anesthetics with a personalized, biofeedback-driven device. This approach is designed to reset dysregulated brainwave patterns by tailoring the therapy to each patient's specific biological needs, offering a new option for individuals who have not responded to traditional treatments.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| Regulatory Filings 2025 | 2025-02-13 | English | |
| Major Shareholding Notification 2025 | 2025-02-12 | English | |
| Major Shareholding Notification 2025 | 2025-02-12 | English | |
| Major Shareholding Notification 2025 | 2025-02-12 | English | |
| Regulatory Filings 2025 | 2025-02-10 | English | |
| Regulatory Filings 2025 | 2025-02-07 | English |
Browse filings by year
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| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2025
7 filings
| |||||
| 13140145 | Regulatory Filings 2025 | 2025-02-13 | English | ||
| 13140146 | Major Shareholding Notification 2025 | 2025-02-12 | English | ||
| 13140147 | Major Shareholding Notification 2025 | 2025-02-12 | English | ||
| 13140148 | Major Shareholding Notification 2025 | 2025-02-12 | English | ||
| 13140149 | Regulatory Filings 2025 | 2025-02-10 | English | ||
| 13140151 | Regulatory Filings 2025 | 2025-02-07 | English | ||
| 13140155 | S-3 | 2025-02-04 | English | ||
|
2024
8 filings
| |||||
| 13140152 | 8-K | 2024-12-17 | English | ||
| 13140154 | Major Shareholding Notification 2024 | 2024-12-06 | English | ||
| 13140156 | Director's Dealing 2024 | 2024-11-25 | English | ||
| 13140158 | 10-Q | 2024-11-14 | English | ||
| 13140159 | 4 | 2024-08-07 | English | ||
| 13140161 | 8-K | 2024-08-07 | English | ||
| 13140164 | 10-Q | 2024-08-07 | English | ||
| 13140165 | SC 13G/A | 2024-07-13 | English | ||
Market data
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Cyclerion Therapeutics, Inc. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/35315/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=35315 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=35315 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=35315 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 35315}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Cyclerion Therapeutics, Inc. (id: 35315)"
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