---
title: "Aggregate institutional ownership stats for one CUSIP"
method: GET
path: "/api/v1/sec/13f/consensus/{cusip}"
tags: ["Hedge Fund Intelligence"]
---

# Aggregate institutional ownership stats for one CUSIP

`GET /api/v1/sec/13f/consensus/{cusip}`

Summary metrics computed across all 13F holders of one security: holder count, total reported value (sum across managers, $thousands), total share count. One-shot answer to 'how big is institutional ownership of $TICKER?'. Pair with /holders-of/{cusip} for the per-manager breakdown. Optional `?quarter=<stem>` selects a historical snapshot from the multi-quarter retention manifest; without the param the canonical latest-quarter pointer is used (backward compatible).

## Path parameters

- `cusip` string, required — 9-character canonical CUSIP.

## Query parameters

- `quarter` string, nullable — Optional retention-manifest stem (e.g. `01dec2025-28feb2026` or `2023q4`). When omitted, returns the canonical latest snapshot. When supplied, must be present in the enumerated manifest from /13f/quarters.

## Response `200`

Aggregate institutional ownership for one CUSIP.

- EnvelopeSec13fConsensus
  - `data` Sec13fConsensus, required
    - `cusip` string, required
    - `issuer` string, required
    - `stem` string, required
    - `holder_count` integer, required
    - `total_value_usd_thousands` integer, required — Sum of value across all 13F holders.
    - `total_shares` integer, required — Sum of share count across all 13F holders.
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

[API](https://skmtc.net/sugra/apis/sugra-api.md) · [All operations](https://skmtc.net/sugra/apis/sugra-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sugra/sugra-api/versions/dcf7427e6897/schema)