> ## Documentation Index
> Fetch the complete documentation index at: https://api.unusualwhales.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> API requests use the base URL https://api.unusualwhales.com and require a bearer token in the `Authorization` header (`Authorization: Bearer <API_KEY>`). Create and manage API tokens at https://unusualwhales.com/dashboard/api.
> For live market data inside an AI tool, use the Unusual Whales MCP server at https://unusualwhales.com/public-api/mcp.
> Instructions for agents using Unusual Whales tools: https://unusualwhales.com/skill.md

# Form497

> A Securities Act Rule 497 filing: prospectus and summary material published by a fund or securities issuer (forms 497, 497J and 497K).

Message
fields**6**
topic[sec-filings](https://api.unusualwhales.com/docs/kafka/topics/sec-filings.md)

**Proto definition**

```protobuf schema.proto theme={null}
message Form497 {
  string issuer = 1;
  string html_url = 2;
  string filing_link = 3;
  string type = 4;
  string issuer_cik = 5;
  string accession_no = 6;
}
```

## Fields

The number on the right of each row is the protobuf field number.

issuer
string
1

the name of the fund/securities issuer

html\_url
string
2

URL to the archived HTML copy of the filing

filing\_link
string
3

URL to the filing on SEC EDGAR

type
string
4

the SEC form type (e.g. 497, 497J, 497K)

issuer\_cik
string
5

the CIK of the issuer

accession\_no
string
6

the filing's accession no