Ownership Data API
Description
Build a company ownership section with major holder metrics, institutional ownership, fund ownership, insider roster, and recent insider transaction data.
This workflow is designed for stock profile pages, equity research dashboards, governance tools, and company transparency views. It helps users understand who owns a company, how much is held by institutions and insiders, which funds hold the stock, and what insider activity has been reported.
Use Ownership Overview for top-level ownership percentages and insider activity totals, then add Institutional Holders, Mutual Fund Holders, Insider Roster, and Insider Transactions for a complete holders section. Institutional Holders return holder names, reported positions, percentage held, and value; Mutual Fund Holders show funds and ETFs holding the selected stock; Insider endpoints are stock-only and return insider records and transaction-level activity.
Interface Example

Output Example
Ownership Overview
- Institutional Ownership: 70.81% (7,503 institutions)
- Insider Ownership: 3.98%
- Institutional Float: 73.74%
- Insider Activity: 61.77M shares bought · 3.15M shares sold (net +58.62M)
Top Institutional Holders
|
Holder |
% Held |
Value |
Reported |
|---|---|---|---|
|
Vanguard Group Inc |
9.33% |
$420.72B |
2025-12-31 |
|
Blackrock Inc. |
7.94% |
$358.09B |
2025-09-30 |
Top Mutual Fund Holders
|
Fund |
% Held |
Value |
Reported |
|---|---|---|---|
|
Vanguard Total Stock Market Index Fund |
2.99% |
$134.87B |
2025-09-30 |
|
Vanguard 500 Index Fund |
2.48% |
$111.74B |
2025-09-30 |
|
Vanguard Growth Index Fund |
0.91% |
$40.95B |
2025-09-30 |
Insider Roster
|
Name |
Relation |
Last Transaction |
Date |
|---|---|---|---|
|
Huang Jen-Hsun |
Chief Executive Officer |
Stock Gift |
2025-12-17 |
|
Kress Colette M. |
Chief Financial Officer |
Sale |
2026-01-13 |
Insider Transactions
|
Filer |
Relation |
Shares |
Value |
Type |
Date |
|---|---|---|---|---|---|
|
Seawell A Brooke |
Director |
12,728 |
$2.34M |
Sale |
2025-12-02 |
|
Robertson Donald F Jr |
Officer |
24,590 |
$4.43M |
Sale (D) |
2025-12-19 |
How to Build this Workflow
This workflow is built using the following FinImpulse APIs
- Ownership Overview API
- Top Institutional Holders API
- Top Mutual Fund Holders API
- Insider Roster API
- Insider Transactions API
- Company Profile API (optional)
- Summary API (optional)
- Market Price API (optional)
- Market News API (optional)
Resources
API Cost Examples
| Scenario | APIs Used | Usage Example | Estimated Monthly Cost |
|---|---|---|---|
| Company Ownership Profile | Ownership Overview API, Institutional Holders API, Mutual Fund Holders API, Insider Roster API, Insider Transactions API | 10,000 stocks × ownership overview + up to 3 rows from each holders endpoint | from ≈ $60.00 |
| Ownership Overview API = $0.00040 + Institutional Holders API (Calls) = $0.00080 + Mutual Fund Holders API (Calls) = $0.00080 + Insider Roster API (Calls) = $0.00080 + Insider Transactions API (Calls) = $0.00080 Total = $0.00360 10,000 stocks × ownership overview + up to 3 rows from each holders endpoint = 10,000 requests 10,000 requests × $0.00360 = $36.00 Institutional Holders API (Rows) = Mutual Fund Holders API (Rows) = Insider Roster API (Rows) = Insider Transactions API (Rows) = $0.00020 10,000 stocks × ownership overview × 3 × 4 (up to 3 rows from each holders endpoint) = 120,000 rows 120,000 rows × $0.00020 ≈ $24.00 Grand Total = $36.00 + $24.00 = $60.00 / month |
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Disclaimer. The pricing examples above are calculated using the APIs shown in this workflow and represent typical usage scenarios. Static data can be cached client-side to reduce actual costs below these estimates, and the Sandbox environment is available for development and testing separately from production usage. Actual costs depend on the endpoints, datasets, response size, request frequency, caching strategy, and additional data included in your application.
FinImpulse provides financial data and analytics APIs only. AI-generated responses depend on the application, prompts, and language model used. FinImpulse does not provide investment advice, trading recommendations, or guarantee the accuracy of AI-generated conclusions.
