# SEC 13F, Congress trades & insider buying

> SEC 13F, Congress trades & insider buying — stockslash-sec-13f. Use this tool when you need to analyze SEC 13F filings, Congress trades, and insider buying data to inform investment decisions or research market trends. It provides access to data on 80 institutional investors, Congress members' trades, and corporate insider filings through 23 callable tools, accepting natural names as input and returning detailed information on investor profiles, stock holdings, and market activity. Use it to gain insights into investment strategies, track market sentiment, and identify potential trading opportunities.

Canonical page: https://skillsregistry.net/skills/stockslash-sec-13f  
JSON: https://api.skillsregistry.net/v1/skills/stockslash-sec-13f

## Description

**SEC 13F filings, Congress trades, and insider buying as MCP tools. Free, no API key, accepts natural names.**

  StockSlash exposes ~80 institutional investors (Buffett, Burry, Ackman, Pabrai, Tepper, Loeb, and more), the members of Congress who trade stocks, and corporate insider filings as **23 callable tools**. Pass
  natural names like `investor: "Buffett"`, `stock: "Apple"`, or `member_name: "Pelosi"`. No CIK or ticker lookup needed.

  Typical agent queries:

  - *"Tell me about Buffett"*
  - *"Compare Burry and Ackman"*
  - *"Are insiders bullish on Tesla?"*
  - *"What did Pabrai buy last quarter?"*
  - *"What is Nancy Pelosi trading?"*

  ## Start here: 4 bundle tools

  Each replaces 3 to 4 separate calls.

  - **`analyze_investor`** — full fund profile in one call: AUM, 8-quarter trend, top 10 holdings with weights, recent activity (Buy / Add / Reduce / Sold), and trading style. Required: `investor`.
  - **`analyze_stock`** — full institutional picture of a stock: top 10 holders, recent fund activity, and insider transaction summary. Required: `stock`.
  - **`compare_investors`** — side-by-side comparison of two funds: overlapping positions, unique-to-each, and divergent moves. Required: `investor_a`, `investor_b`.
  - **`get_insider_summary`** — aggregated Form 4 sentiment over a window: net flow, top buyers and sellers, plus a bullish / bearish / mixed label. Required: `stock`. Optional: `days_back`.

  ## 19 granular tools

  **Investor data**

  - `get_super_investors` — list and filter all 80 tracked funds; search by tag, style, or description.
  - `get_investor_current_holdings` — every stock owned by one fund at a given quarter.
  - `get_investor_fund_value` — latest total AUM for one fund.
  - `get_investor_fund_value_history` — quarterly AUM with period returns.
  - `get_fund_activity` — buys and sells made in one quarter.
  - `get_fund_distribution` — trading cadence across quarters.

  **Stock data**

  - `get_stock_holders` — top 20 institutional holders plus summary.
  - `get_stock_activity` — recent buy and sell activity across all funds for one stock.
  - `get_ownership_statistics` — institutional ownership concentration plus top 5 holders.
  - `get_insider_trades` — raw Form 4 transactions (filter by Buy or Sell).

  **Congress and insiders**

  - `get_congress_trades` — U.S. Congress stock trades from STOCK Act disclosures; filter by `member_name` (e.g. "Pelosi") or `ticker`.
  - `get_congress_consensus` — stocks several members of Congress bought recently, a consensus signal.
  - `get_top_insider_stocks` — stocks with the most insider buying, scoped by default to super-investor holdings (where insiders and smart money overlap).

  **Market-wide**

  - `get_filings_buy_status` — top 25 stocks being bought across funds this quarter.
  - `get_filings_sell_status` — top 25 stocks being sold across funds this quarter.
  - `get_latest_filings_updates` — most recent 13F submissions.
  - `get_sp_stocks_by_holders` — S&P 500 stocks ranked by institutional holder count.
  - `get_ownership_statistics_home` — dashboard snapshot: top owned, most bought, most sold.
  - `get_latest_quarter` — which quarter has the most recent data.

  Full reference at [stockslash.com/mcp-api](https://stockslash.com/mcp-api).

  ## Built for agents

  Responses include a `resolved` block showing exactly which entity matched the input, and `related_tickers` suggestions when a query returns no data. Payloads max ~25 KB, average ~7 KB. All 23 tools ship with full
  JSON Schema `outputSchema` and MCP 2024-11-05 `annotations`.

  ## Data

  Normalized 13F holdings, Form 4 insider transactions, and congressional (STOCK Act) trades across ~80 tracked investors and the members of Congress who trade. Holdings are quarterly snapshots, lagged up to 45
  days; insider and congressional filings carry their own disclosure lag. Not real-time, analytical use only ([terms](https://stockslash.com/imprint)).

  **Free. Rate-limited to 200 requests per 15 minutes per IP.**

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/stockslash/sec-13f)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "stockslash-sec-13f"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/stockslash-sec-13f` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/stockslash-sec-13f/pull`

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