Aptevo Therapeutics Inc. — Investor Relations & Filings
Aptevo Therapeutics Inc. is a clinical-stage biotechnology company focused on developing novel immunotherapies for the treatment of cancer. The company specializes in creating bispecific and trispecific antibody-based therapeutics designed to harness a patient's immune system to fight malignancies. Its pipeline includes multiple candidates targeting both hematologic cancers and solid tumors. The lead candidate, Mipletamig, is a CD3 T-cell engager targeting the CD123 tumor antigen for the treatment of Acute Myeloid Leukemia (AML). Other programs in development target various tumor antigens, including PSMA for prostate cancer and Nectin-4 for solid tumors, utilizing mechanisms like T-cell engagement and co-stimulation to enhance anti-tumor activity.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 4 | 2025-11-12 | English | |
| 10-Q | 2025-11-06 | English | |
| 8-K | 2025-11-06 | English | |
| 8-K | 2025-10-30 | English | |
| S-1 | 2025-10-01 | English | |
| Major Shareholding Notification 2025 | 2025-09-17 | English |
Browse filings by year
11 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2025
15 filings
| |||||
| 12947018 | 4 | 2025-11-12 | English | ||
| 12947020 | 10-Q | 2025-11-06 | English | ||
| 12947022 | 8-K | 2025-11-06 | English | ||
| 12947021 | 8-K | 2025-10-30 | English | ||
| 12947023 | S-1 | 2025-10-01 | English | ||
| 12947024 | Major Shareholding Notification 2025 | 2025-09-17 | English | ||
| 12947025 | 8-K | 2025-09-16 | English | ||
| 12947026 | 8-K | 2025-09-04 | English | ||
| 12947027 | Major Shareholding Notification 2025 | 2025-08-15 | English | ||
| 12947028 | Major Shareholding Notification 2025 | 2025-08-14 | English | ||
| 12947029 | Major Shareholding Notification 2025 | 2025-08-13 | English | ||
| 12947030 | 10-Q | 2025-08-11 | English | ||
| 12947031 | 8-K | 2025-08-11 | English | ||
| 12947032 | 4 | 2025-08-08 | English | ||
| 12947033 | 4 | 2025-08-08 | English | ||
Market data
Market data not available
Price history
Peer group · Research and experimental development on natural sciences and engineering
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Aptevo 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/35422/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=35422 | 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=35422 | 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=35422 \ -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": 35422}, 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 Aptevo Therapeutics Inc. (id: 35422)"
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