---
title: "As-filed share count history"
method: GET
path: "/share-count-history"
---

# As-filed share count history

`GET /share-count-history`

## Request

- Base URL: `https://boothcheck.com/api/v1`
- URL: `https://boothcheck.com/api/v1/share-count-history`
- Auth: HTTP bearer

The cover-page shares-outstanding count a US company reported on each 10-K/10-Q/20-F (dei:EntityCommonStockSharesOutstanding) as filed: the count, its own as-of date, the filing date, form and accession, newest first, with steps whose ratio matches a common split ratio flagged. Point-in-time: each row is what that filing said, never restated. Multi-class issuers that tag counts per class may have no rows. Requires a signed-in Founding Access account API key (Authorization: Bearer bck_...).

## Query parameters

- `ticker` string, required
- `format` 'json' | 'csv'

## Response `200`

Structured result. Every payload carries an informational-purposes disclaimer; no Boothcheck house fair value, price target, or rating.

## Other responses

- `401`: Missing or invalid API key for a keyed endpoint.
- `404`: Ticker not covered or no data for this surface.
- `429`: Rate limit reached for the key tier.

---

[API](https://skmtc.dev/boothcheck/apis/boothcheck-api.md) · [All operations](https://skmtc.dev/boothcheck/apis/boothcheck-api/llms.txt) · [OpenAPI document](https://skmtc.dev/boothcheck/apis/boothcheck-api/revisions/fa7f52df2e65?raw)