SEC 13F, Congress trades & insider buying

**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.**