Hedge Fund Intelligence

Largest institutional buys per CUSIP this quarter (cross-fund leaderboard)

Changed on

Derived cross-fund leaderboard of quarter-over-quarter institutional accumulation. Walks the top-N filers in the requested quarter (ranked by AUM), diffs each filer's per-position share count against the immediately-prior retained quarter, aggregates the POSITIVE share-deltas by CUSIP, and returns the largest rollups by dollar value. Each row reports total shares added, total value added (in $thousands), distinct fund count, and a sample of the top contributing buyers. PUT/CALL option rows are excluded (stock-accumulation signal only). Sales are excluded - this is a strict 'buy' signal. Optional ?quarter=<stem> scans a historical quarter (default: newest retained stem; from_stem is auto-resolved to the next-prior stem in the retention manifest). v1 limitation: scope bounded to top-N filers (default 100, max 300); full-universe scan deferred to v2 via ingest-side pre-aggregation.

get/api/v1/sec/13f/top-buys

Request

  • Base URL: https://sugra.ai
  • URL: https://sugra.ai/api/v1/sec/13f/top-buys
  • Auth: API key in header x-api-key

Query parameters

quarterstring nullable

Optional retention-manifest stem. When omitted, scan the newest available stem.

filer_top_ninteger

Top-N institutional managers by AUM to include in the scan (10..80, default 50). The cap of 80 keeps one scan within memory, so the answer comes back in seconds.

limitinteger

Maximum CUSIP rows returned (1..200, default 50).

Response

Cross-fund leaderboard of CUSIPs accumulated this quarter.

Example response

{
  "data": {
    "top_buys": [
      {
        "cusip": "037833100",
        "sample_buyers": [
          {
            "cik": "0001067983",
            "manager_name": "BERKSHIRE HATHAWAY INC"
          }
        ]
      }
    ]
  },
  "meta": {
    "endpoint": "/api/v1/fred/us/cpi",
    "data_time": "2026-04-16T14:30:00Z",
    "response_time": "2026-04-16T14:30:12Z",
    "provider": "Sugra API v1.0.1",
    "data_age_days": 8.532,
    "source": "sugra_crypto",
    "attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
    "fallback_chain": [
      "sugra_crypto",
      "sugra_finance"
    ],
    "stale_since": "2026-09-08T12:00:00Z",
    "period": "2026-Q1",
    "notes": "the UKMTO report behind these counts is dated 2026-08-21 and is 11 days old"
  }
}

Changes