Annexon, Inc. — Investor Relations & Filings
Annexon, Inc. is a clinical-stage biopharmaceutical company developing a new class of complement medicines. The company's therapeutic approach is centered on inhibiting C1q, the initiating molecule of the classical complement pathway. By blocking C1q at the start of this immune cascade, Annexon aims to prevent the inflammation and tissue damage that drive a range of diseases. Its pipeline is focused on developing treatments for classical complement-mediated disorders affecting the body, brain, and eye, which include autoimmune, neurodegenerative, and ophthalmic conditions.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| SCHEDULE 13G/A - Annexon, Inc. (0001528115) (Subject) | 2026-03-26 | English | |
| 4 - ANNEXON, INC. (0001528115) (Filer) | 2026-03-04 | English | |
| 4 - ANNEXON, INC. (0001528115) (Filer) | 2026-03-04 | English | |
| 4 - ANNEXON, INC. (0001528115) (Filer) | 2026-03-04 | English | |
| 4 - ANNEXON, INC. (0001528115) (Filer) | 2026-03-04 | English | |
| 4 - ANNEXON, INC. (0001528115) (Filer) | 2026-03-04 | English |
Browse filings by year
10 yearsMarket data
Market data not available
Price history
Peer group · Manufacture of pharmaceuticals, medicinal chemical and botanical products
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
ANHUI FENGYUAN PHARMACEUTICAL CO., LTD
Produces injections, solid dosage forms, APIs, and nutritio…
|
000153 | CN | Manufacturing |
|
Anhui Huangshan Capsule Co.,Ltd
Produces empty hard capsules, including gelatin and HPMC ve…
|
002817 | CN | Manufacturing |
|
Anhui Sunhere Pharmaceutical Excipients Co.,Ltd
Develops and manufactures pharmaceutical excipients for sol…
|
300452 | CN | Manufacturing |
|
Anika Therapeutics, Inc.
A global joint preservation company developing solutions fo…
|
ANIK | US | Manufacturing |
|
ANIMALCARE GROUP PLC
Develops and commercializes veterinary pharmaceutical produ…
|
ANCR | GB | Manufacturing |
|
ANI PHARMACEUTICALS INC
Develops, manufactures, and markets branded, generic, and O…
|
ANIP | US | Manufacturing |
|
ANLON HEALTHCARE LIMITED
Researches and manufactures APIs, intermediates, and finish…
|
AHCL | IN | Manufacturing |
|
Annexin Pharmaceuticals AB
Clinical-stage biotech developing a cell-protecting biologi…
|
ANNX | SE | Manufacturing |
|
Antengene Corporation Limited
Global biopharma developing and commercializing novel oncol…
|
6996 | KY | Manufacturing |
|
ANTEROGEN CO., LTD.
Develops and commercializes cell therapies and orphan drugs…
|
065660 | KR | Manufacturing |
Annexon, 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/33181/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=33181 | 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=33181 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=33181 \ -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": 33181}, 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 Annexon, Inc. (id: 33181)"
Report missing filing
Can't find a specific document? Let us know and we'll add it within 24 hours.