Ownership Filings API for Insider and Shareholder Transparency
Access insider trading and beneficial ownership filings with clean metadata and consistent structure.
Ownership data should not slow your analysis
Tracking insider activity and ownership changes often requires manual work. Teams download filings, map relationships, and reconcile identifiers across documents. This process delays insight and increases operational effort.
One API for Ownership and Insider Filings
Quantillium’s Ownership Filings API delivers structured access to insider trading and beneficial ownership filings through a simple REST interface. You receive clean metadata, direct document access, and historical coverage designed for analysis and automation.
This API includes the following ownership filings
Form 3
Initial ownership disclosure filed by insiders when they join a company.
Form 4
Reports changes in insider ownership such as buys, sells, or grants.
Form 5
Annual summary of insider transactions not previously reported.
Schedule 13D
Filed when an investor acquires a significant ownership stake with intent to influence control.
Schedule 13G
Filed by passive investors who exceed ownership thresholds without control intent.
Core Features
Data Access
Access insider and ownership filings through a direct and reliable retrieval workflow.
Comprehensive Ownership Coverage
Access Form 3, 4, 5, 13D, and 13G filings with full documents and metadata. Track insider activity and beneficial ownership across companies with clarity.
Consistent Document Retrieval
Retrieve filings through stable endpoints with clean identifiers. Support automation and reduce errors in ownership data workflows.
Historical Archives
Access ownership filings from 2015 onward with consistent structure. Analyze long-term ownership trends without dealing with format changes.
Standardization
Work with ownership filings delivered in a uniform structure for easier analysis.
Unified JSON Output
All ownership filings return in a clean JSON format. This keeps integrations simple across tools and systems.
Structured Metadata
Includes filing dates, insider names, roles, company identifiers, and document links. This structure supports filtering, analysis, and reporting use cases.
Document Integrity
Work with ownership filings delivered in a uniform structure for easier analysis.
Search and Filter
Find ownership activity with precision using flexible filters.
Flexible Query Parameters
Search by ticker, CIK, insider name, form type, or date range. Quickly locate relevant ownership filings for research or monitoring.
Efficient Filtering
Narrow results using structured ownership metadata. Focus only on filings that matter to your workflow.
Entity Mapping
Link insiders, issuers, and identifiers accurately across filings. Reduce mismatches and improve ownership analysis across datasets.
Performance
Get stable delivery for ownership data workflows
Reliable Response Times
Endpoints support research and automated use cases. Ensure consistent access during daily and high-volume usage.
Stable Infrastructure
Built for continuous access during market activity. Support critical workflows without interruption.
Optimized Delivery
Efficient responses for analytics and pipelines. Reduce latency for data-driven systems and tools.
Integration
Integrate ownership data with minimal effort.
Developer Focused
REST endpoints with clear documentation and examples. Enable faster onboarding for engineering teams.
Straightforward Access
JSON responses designed for internal tools and platforms. Use ownership data across dashboards, research tools, and services.
Simple Authentication
Secure API key access with environment separation. Control access while supporting development and production workflows.
Data Structure and Format
Ownership filings are delivered in a consistent structure with metadata and document access. JSON is the default format, with CSV export available for tabular analysis and research workflows.
Use Cases
Hedge Funds
Monitor insider activity and ownership signals.
Hedge Funds
Track shareholder positions and governance risk.
FinTech
Power ownership analytics and transparency tools.
Equity Research Firms
Analyze insider behavior alongside fundamentals.
Fortune 500 Companies
Monitor peer ownership and governance changes.
Simple, Clear, and Developer-Ready
Get started quickly with a clean API design and clear documentation built for ownership and insider data workflows.
Get Recent Form 4 Filings
GET /api/v1/ownership?formType=4&limit=20
Track Insider for Company
GET /api/v1/ownership?ticker=AAPL&formType=4
Monitor Institutional Changes
GET /api/v1/ownership?formType=13F&startDate=2024-01-01
Find 13D Activist Filings
GET /api/v1/ownership?formType=13D&filingDate=2024-12-01
Frequently Asked Questions
You have questions? We have asnwers.
Start Building With Ownership Filings Data
Access structured ownership and insider filings with clean metadata and reliable coverage for research, compliance, and analytics.
