SEC Form 13F aggregated holdings verdict
SEC Form 13F aggregated holdings verdict: by manager (name or CIK) get the latest-quarter portfolio total, position count, top 10 holdings and quarter-over-quarter change; by CUSIP get how many 13F managers hold the security, aggregate value/shares and top holders. Aggregates computed from public-domain SEC Form 13F data sets.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
573 msmedian answer time
$0.08listed price per call
$0.08price 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
POST https://holdings-13f-verify.iykykblog.workers.dev/verify
| Category | Everything else |
|---|---|
| Provider host | holdings-13f-verify.iykykblog.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.08 | 573 ms |
Example input (from the provider)
{
"body": {
"manager": "Berkshire Hathaway"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"cusip": {
"description": "9-character CUSIP, e.g. '037833100' (Apple Inc). Provide manager OR cusip.",
"type": "string"
},
"manager": {
"description": "13F filing manager name or CIK, e.g. 'Berkshire Hathaway' or '1067983'. Provide manager OR cusip.",
"type": "string"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}