SEC Form 13F filings data showing institutional investment manager holdings
SEC Form 13F filings data showing institutional investment manager holdings. Form 13F is required to be filed quarterly by institutional investment managers with at least $100 million in qualifying assets under management. Can't find what you're looking for? POST feedback to /feedback, no charge.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
647 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://agent.massive.com/stocks/filings/vX/13-F
| Category | Market data |
|---|---|
| Provider host | agent.massive.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 647 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"limit": 100,
"sort": "filing_date.desc"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"filer_cik": {
"description": "SEC Central Index Key (10 digits, zero-padded) of the filing entity.",
"type": "string"
},
"filer_cik.any_of": {
"description": "Filter equal to any of the values. Multiple values can be specified by using a comma separated list.",
"type": "string"
},
"filing_date": {
"description": "Date when the filing was submitted to the SEC (formatted as YYYY-MM-DD). Value must be formatted 'yyyy-mm-dd'.",
"type": "string"
},
"filing_date.gt": {
"description": "Filter greater than the value. Value must be formatted 'yyyy-mm-dd'.",
"type": "string"
},
"filing_date.gte": {
"description": "Filter greater than or equal to the value. Value must be formatted 'yyyy-mm-dd'.",
"type": "string"
},
"filing_date.lt": {
"description": "Filter less than the value. Value must be formatted 'yyyy-mm-dd'.",
"type": "string"
},
"filing_date.lte": {
"description": "Filter less than or equal to the value. Value must be formatted 'yyyy-mm-dd'.",
"type": "string"
},
"limit": {
"default": 100,
"description": "Limit the maximum number of results returned. Defaults to '100' if not specified. The maximum allowed limit is '1000'.",
"maximum": 1000,
"minimum": 1,
"type": "integer"
},
"sort": {
"default": "filing_date.desc",
"description": "A comma separated list of sort columns. For each column, append '.asc' or '.desc' to specify the sort direction. The sort column defaults to 'filing_date' if not specified. The sort order defaults to 'desc' if not specified.",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}