13F Top Managers

Available as MCP tool: sec_13f_list_top_managers — call directly from Claude / Cursor / any MCP client. See MCP Server for the 60-second setup.

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What it does for your agent

sec_13f_list_top_managers enumerates the requested quarter’s SEC Form 13F Top 1,000 manager set ranked by 13F reportable value — rank 1 is the institution with the largest reportable value that quarter. Each quarter has its own Top 1,000, so an older quarter’s result stays stable when a newer quarter is released. Use it to build a fund pool when an agent doesn’t yet know a specific manager_cik or ticker: derive the Top N (e.g. 30) here, then fan out to sec_13f_list_manager_holdings to pull each manager’s holdings for consensus / overlap / Q-over-Q rank-diff analyses.

Two quarter fields — they point to the same quarter

manager_set_period — the quarter whose Top 1,000 manager set this response covers. Equal to the quarter you query (year + quarter); defaults to the most recent covered quarter when you omit both.
ranking_period — the quarter the response’s ranks and values are computed from. Equal to manager_set_period — each quarter is served from its own Top 1,000.

Query a different (year, quarter) to get that quarter’s own roster; rosters change across quarters as managers move in and out, and an older quarter’s roster stays stable when a newer quarter is released. Passing a (year, quarter) outside the covered range returns 200 OK with an empty managers array plus an explanatory meta.notice.

Response

TopManagersResult

required

Show TopManagersResult fields

string

Quarter (YYYY-MM-DD) whose Top 1,000 manager set this response covers; equals the quarter you query (or the most recent covered quarter when you omit year/quarter), and equals ranking_period.

string

Quarter (YYYY-MM-DD) the ranks and values in this response were computed from; equals manager_set_period.

TopManager[]

required

Managers sorted by period_rank ascending.

Show TopManager fields

string

required

SEC CIK.

string

required

Canonical manager name.

string[]

required

Known aliases / DBA names (may be empty). Useful for matching natural-language manager mentions to a manager_cik.

integer

required

Rank within the covered Top 1,000 manager set for ranking_period (1 = largest reportable value that quarter).

number

required

13F reportable value (USD) for ranking_period. AUM proxy, not true firmwide AUM — excludes fixed income, options, non-U.S. holdings, shorts.

number

Always 0 — this endpoint is free.

number

Credits left after this call.

string

Plain-English coverage note; extended with “has no ranking data” when a (year, quarter) outside the covered range is requested.

200 OK · sec_13f_list_top_managers

{
  "data": {
    "manager_set_period": "2025-12-31",
    "ranking_period": "2025-12-31",
    "managers": [
      {
        "manager_cik": "0001364742",
        "manager_name": "BLACKROCK INC.",
        "aliases": ["BLACKROCK", "BLACKROCK FUND ADVISORS"],
        "period_rank": 1,
        "period_reportable_value_usd": 4521893245678
      },
      {
        "manager_cik": "0000102909",
        "manager_name": "VANGUARD GROUP INC",
        "aliases": ["VANGUARD"],
        "period_rank": 2,
        "period_reportable_value_usd": 4123456789012
      }
    ]
  },
  "meta": {
    "creditsUsed": 0,
    "remainingCredits": 999,
    "notice": "13F coverage: Top 1,000 managers for quarter 2025-12-31 (each quarter has its own Top 1,000). Ranking data available for 4 quarters: 2025-03-31 … 2025-12-31. Reportable value is an AUM proxy excluding fixed income, options, non-U.S. holdings, and shorts."
  }
}

Notes

Canonical workflow — Smart Money Consensus pool:

sec_13f_list_top_managers?limit=30 — pick the Top 30 fund pool.
Loop each manager_cik into sec_13f_list_manager_holdings to fetch holdings.
Aggregate client-side to build a consensus / overlap leaderboard.

Holdings are not included in this response — fan-out is required.

Typical agent queries: each quarter has its own Top 1,000 and rankings are computed per quarter — the agent can decide how many times to call the tool and which quarters to compare.

Top 30 smart money roster quarter-over-quarter

Top N fund pool for a specific quarter

Use aliases to match natural-language manager mentions (“BlackRock”, “Vanguard”) to the canonical manager_cik before calling sec_13f_list_manager_holdings. Saves a round trip through the manager_name resolver.

Each quarter has its own Top 1,000 manager set: passing a different (year, quarter) returns that quarter’s own roster — managers move in and out across quarters, so a roster diff is meaningful. A manager appears in the response for every quarter it was inside that quarter’s Top 1,000, and an older quarter’s roster stays stable when a newer quarter is released.

Top 1,000 only, ranked by 13F reportable value (an AUM proxy, not true AUM). Excludes fixed income, options, non-U.S. holdings, shorts.

This is not a semantic / keyword search — there is no free-text manager filter. For natural-language manager lookups, call sec_13f_list_manager_holdings with manager_name.

Direct invocation

HTTP / SDK examples

// 1) Latest-quarter Top 30 fund pool
{
  "method": "tools/call",
  "params": {
    "name": "sec_13f_list_top_managers",
    "arguments": { "limit": 30 }
  }
}

// 2) Previous-quarter Top 30 — for roster diff
{
  "method": "tools/call",
  "params": {
    "name": "sec_13f_list_top_managers",
    "arguments": { "limit": 30, "year": 2025, "quarter": 3 }
  }
}

import os, requests

base = "https://api.llmquantdata.com"
headers = {"Authorization": f"Bearer {os.environ['LLMQUANT_API_KEY']}"}

# Latest-quarter Top 30
latest = requests.get(
    f"{base}/api/filings/13f/managers",
    headers=headers,
    params={"limit": 30},
).json()["data"]["managers"]

# Specific quarter
prev = requests.get(
    f"{base}/api/filings/13f/managers",
    headers=headers,
    params={"limit": 30, "year": 2025, "quarter": 3},
).json()["data"]["managers"]

# Latest-quarter Top 30
curl "https://api.llmquantdata.com/api/filings/13f/managers?limit=30" \
  -H "Authorization: Bearer $LLMQUANT_API_KEY"

# Specific quarter
curl "https://api.llmquantdata.com/api/filings/13f/managers?limit=30&year=2025&quarter=3" \
  -H "Authorization: Bearer $LLMQUANT_API_KEY"

Full parameter reference

sec_13f_list_top_managers — request parameters

integer

default:30

Number of managers to return, sorted by period_rank ascending. Default 30. Range [1, 1000]; server clamps out-of-range values.

integer

Calendar year of the quarter to query (e.g. 2025). Range [2013, 2030]. Must be paired with quarter; omit both for the most recent quarter the data covers.

integer

Calendar quarter 1-4 (Q1=Jan-Mar, Q4=Oct-Dec). Must be paired with year.

13F Holdings by Manager

Forward direction — fetch one fund’s full holdings (the natural fan-out from this tool).

13F Holders by Ticker

Reverse direction — which Top 1000 managers hold a given ticker?

MCP Server setup

Connect Claude / Cursor / any harness in 60 seconds.

Getting Started

Connect

Personal Context

Knowledge Data

Crypto Prices

Prediction Markets

Equity Prices

ETF

Macro Indicators

SEC Filings

News

SEC Form 13F

What it does for your agent

Two quarter fields — they point to the same quarter

Response

Notes

Direct invocation

Full parameter reference

13F Holdings by Manager

13F Holders by Ticker

MCP Server setup

​What it does for your agent

​Two quarter fields — they point to the same quarter

​Response

​Notes

​Direct invocation

​Full parameter reference

​Related

13F Holdings by Manager

13F Holders by Ticker

MCP Server setup

What it does for your agent

Two quarter fields — they point to the same quarter

Response

Notes

Direct invocation

Full parameter reference

Related