---
title: "Add Beneficial Owner"
method: POST
path: "/businesses/{business_id}/beneficial_owners"
tags: ["Businesses"]
---

# Add Beneficial Owner

`POST /businesses/{business_id}/beneficial_owners`

## Path parameters

- `business_id` string, required — A business identifier.

## Headers

- `LMG-Data-Privacy-Access-Principal` string, required
- `LMG-Data-Privacy-Access-Justification` string, required

## Request body

- BeneficialOwnerRequest
  - `person` string, required — A person identifier. This field represents the `person` associated as beneficial owner.
  - `shares_pct` string, number, required — The amount of shares (in percent) held by this beneficial owner.
  - `voting_rights_pct` string, number — The amount of voting rights (in percent) held by this beneficial owner. Required for KYC reliance partners only.
  - `nature` 'real' | 'notional', required — A category describing the nature of a UBO: <ul> <li><code>real</code> <li><code>notional</code> </ul>

## Response `201`

Successful Response

- BeneficialOwnerResponse
  - `id` string, required — The unique identifier for this beneficial owner.
  - `person` string, required — A person identifier. This field represents the `person` associated as beneficial owner.
  - `shares_pct` string, number, required — The amount of shares (in percent) held by this beneficial owner.
  - `voting_rights_pct` string, number — The amount of voting rights (in percent) held by this beneficial owner. Required for KYC reliance partners only.
  - `nature` 'real' | 'notional', required — A category describing the nature of a UBO: <ul> <li><code>real</code> <li><code>notional</code> </ul>

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `404` — Not Found
- `422` — Unprocessable Entity
- `5XX` — Server Error

---

[API](https://skmtc.net/lemon/apis/lemon-markets-brokerage-api.md) · [All operations](https://skmtc.net/lemon/apis/lemon-markets-brokerage-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/lemon/lemon-markets-brokerage-api/revisions/3c8cfd3a96c9/schema)