# Chadwin Institutional holdings API

**Canonical:** https://apis.io/apis/chadwin/chadwin-institutional-holdings-api/  
**Provider:** Chadwin — https://apis.io/providers/chadwin/  
**Base URL:** https://api.chadwin.co  
**Documentation:** https://www.chadwin.co/docs/api

Chadwin Institutional holdings API is one of 8 APIs that [Chadwin](https://apis.io/providers/chadwin/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. Tagged areas include Institutional Holdings. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

Find institutional managers and reporting periods, retrieve Form 13F filings and holdings, and view a manager's holdings and consolidated positions. Follow new Forms 13F-HR and 13F-NT and their amendments through the update feed.

## Operations (9)

| Method | Path | Summary |
|---|---|---|
| GET | `/v1/institutional-managers` | List institutional managers |
| GET | `/v1/institutional-managers/search` | Search institutional managers |
| GET | `/v1/institutional-managers/{form_13f_file_number}` | Get institutional manager |
| GET | `/v1/institutional-managers/{form_13f_file_number}/periods` | List manager periods |
| GET | `/v1/institutional-managers/{form_13f_file_number}/holdings` | List manager holdings |
| GET | `/v1/institutional-managers/{form_13f_file_number}/positions` | List manager positions |
| GET | `/v1/institutional-filings/{accession}` | Get institutional filing |
| GET | `/v1/institutional-filings/{accession}/holdings` | List filing holdings |
| GET | `/v1/institutional-filings/feed` | List institutional filing updates |

## Machine-readable artifacts (7)

- **OpenAPI** — https://artifacts.apis.io/chadwin/openapi/chadwin-institutional-holdings-api-openapi.yml
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-proposed-sale-filing-detail-schema.json
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-institutional-filing-detail-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-insider-filing-document-schema.json
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-company-report-page-schema.json
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-company-report-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/chadwin/json-schema/chadwin-proposed-sales-response-schema.json

## Other Chadwin APIs (7)

- [Chadwin API](https://apis.io/apis/chadwin/chadwin-api/)
- [Chadwin Companies API](https://apis.io/apis/chadwin/chadwin-companies-api/)
- [Chadwin Company KPIs API](https://apis.io/apis/chadwin/chadwin-company-kpis-api/)
- [Chadwin Company reports API](https://apis.io/apis/chadwin/chadwin-company-reports-api/)
- [Chadwin Current reports API](https://apis.io/apis/chadwin/chadwin-current-reports-api/)
- [Chadwin Insider activity API](https://apis.io/apis/chadwin/chadwin-insider-activity-api/)
- [Chadwin Normalized financial statements API](https://apis.io/apis/chadwin/chadwin-normalized-financial-statements-api/)

## Tags

Institutional Holdings

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/chadwin/chadwin-institutional-holdings-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/chadwin/.