Ownership Data API

REST API · For developers

Build Company Ownership Views Using Ownership Data API

Retrieve structured ownership and holder data for publicly traded stocks. Ownership Data API provides institutional and insider ownership overview, top institutional holders, mutual fund holders, insider roster, and detailed insider transaction records through dedicated endpoints.

Use it to build company profile pages, equity research dashboards, governance sections, holder concentration views, and insider activity tables.

Includes 5 Financial APIs View Documentation
Wireframe illustration with a bank icon connected by dotted lines to three smaller icons (two people, one person, a briefcase), a donut chart below showing 62.4% Institutional Ownership, and a list of three rows with person icons, placeholder text lines, and share change values (-100,000, +50,000, +20,000).

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

Company Ownership interface example for NVDA, showing sector (Technology · Semiconductors) and location (Santa Clara, California, US) at top left, connected to an Ownership Overview card (Institutional Ownership 70.81% from 7,503 institutions, Insider Ownership 3.98%, Insider Activity 61.77M bought / 3.15M sold, net +58.62M). Below are two tables — Top Institutional Holders (Vanguard Group Inc, Blackrock Inc. with % held, value, and reported date) and Top Mutual Fund Holders (three Vanguard funds with % held and value) — and an Insider Activity table listing three names with relation, activity type (Stock Gift, Sale), and date.

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

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

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.

Start building with FinImpulse API