SEC Insider Cluster Detector — Coordinated Form 4 Buys

SEC Insider Cluster Detector

SEC Insider Cluster Detector is a NexGenData tool on Apify that returns clusters of coordinated insider buying and selling from SEC Form 4 filings.

Track clustered insider buying and selling from SEC EDGAR, parsed into clean JSON. Built for analysts, funds, fintech builders and AI agents. Factual public SEC/EDGAR data — not financial or investment advice. Not affiliated with the U.S. SEC.

📊 Sample Output

company_name	sector	cluster_start_date	cluster_end_date	insider_roles	total_value_usd
Dycom Industries Inc	Water, Sewer, Pipeline, Comm & Power Line Construction	2026-09-01	2026-09-23	['Director', 'CEO', 'Director']	551307
Dick'S Sporting Goods, Inc.	Miscellaneous Shopping Goods Stores	2026-08-26	2026-09-23	['Director', 'CFO', 'Director', 'Director', 'Director', 'Director']	5088794
General American Investors Co Inc	Closed-End Funds	2026-09-15	2026-09-23	['Chairman', 'VP', 'Vice-Pres', 'CEO', 'Treasurer, PAO, PFO']	672290
Agree Realty Corp	Real Estate Investment Trusts	2026-08-27	2026-09-21	['Officer', 'Director', 'CEO']	4142871
Gamestop Corp.	Computer & Computer Software Stores	2026-09-08	2026-09-21	['Director', 'CEO', 'Director', 'Director']	48401613

Real rows from run l3HmcsLnrAbmvf172 on build 0.0.9 (2026-09-25), unedited apart from masked emails/phones and shortened long text; fields the source does not publish are empty.

🔧 Input reference

Field	Type	Default	What it does
min_cluster_size	integer	3	Minimum number of DISTINCT insiders that must have bought the same stock inside the rolling window for a cluster to qualify. 3 is the academic-research threshold (Lakonishok-Lee 2…
date_range	string (last_30d, last_60d, last_90d)	"last_30d"	How far back to scan for clustered insider buying. last_30d is the canonical academic-research window — insiders rarely act independently on the same thesis if their decisions are…
min_value_usd	integer	25000	Skip clusters where the total combined dollar value of all insider buys is below this threshold. Filters out trivial token buys (1-2K share Director gifts/exercises). Common thres…
exclude_sells	boolean	true	If true, only return clusters where EVERY insider transaction in the window was a buy (no sells, no exercises, no dispositions mixed in). The is_all_buy=true flag isolates the hig…
limit	integer	5	Maximum number of cluster records to push to the dataset (one row per stock — already aggregated, so a stock with 8 insiders piling in is ONE record not eight). Typical hedge-fund…
tickers	array	[]	Optional list of stock tickers to restrict the cluster scan to. Useful when you already track a watchlist and only want cluster alerts for those names. Leave empty to scan the ful…
include_industry	boolean	true	If true, include the OpenInsider-supplied industry classification (e.g., 'Pharmaceutical Preparations', 'Semiconductors', 'Commercial Banks') as the sector field on each cluster r…

🧾 JSON sample record

One real record from run l3HmcsLnrAbmvf172 (emails/phones masked, long text shortened):

{
  "symbol": "DY",
  "company_name": "Dycom Industries Inc",
  "sector": "Water, Sewer, Pipeline, Comm & Power Line Construction",
  "cluster_start_date": "2026-09-01",
  "cluster_end_date": "2026-09-23",
  "insider_count": 3,
  "insider_names": [
    "Sabater Carmen M",
    "Peyovich Daniel S",
    "Fallon David Joseph"
  ],
  "insider_roles": [
    "Director",
    "CEO",
    "Director"
  ],
  "total_shares_bought": 1900,
  "total_value_usd": 551307,
  "current_stock_price": 280.62,
  "stock_move_since_cluster_start_pct": -2.1957,
  "is_all_buy": true,
  "cluster_strength_score": 155.0176,
  "top_insider": {
    "name": "Peyovich Daniel S",
    "role": "CEO",
    "total_value_usd": 252246
  },
  "data_source": "openinsider.com cluster-buys + per-symbol drilldown (SEC Form 4 origin)"
}

💰 Pricing

Event	Price (USD)	When it is charged
Actor Start (apify-actor-start)	$0.01	Charged when the Actor starts running. Number of events charged depends on Actor memory (one event per GB, minimum one event).
Insider cluster record (apify-default-dataset-item)	$0.1	Charged per aggregated cluster returned — one stock with 3+ distinct insider buys inside the lookback window, with all insider names, roles…

Pay-per-event: you pay only for what the run delivers. A run that delivers nothing bills no result events (only the actor-start event, when the actor defines one). Example: a run that delivers 100 results costs 100 × $0.1 = $10.00 plus the start fee.

🔗 Related Actors

More from the NexGenData SEC & US filings family:

• ETF Holdings Tracker — Daily Constituents & Weights API
• EU MAR Insider Transactions Tracker (IT+NL+ES+BE)
• HKEX Insider & Short Tracker — 內幕權益 API
• IPO Tracker — Upcoming & Priced US IPOs API
• Japan EDINET Insider Filings — インサイダー取引 API
• Unusual Options Activity Tracker — Flow & Volume API

48 more in this family on the NexGenData Store page.

📊 What you get

Clean JSON, one record per record. Key fields (full output has 16 fields):

• company_name — Company / filer name
• insider_names — Insider name
• insider_roles — Insider role / relationship
• total_value_usd — USD value

Pricing: $0.1 per record (Pay-Per-Event) — about 10 per $1. Actor start fee $0.01 per run. Live prices are in the Pricing table below.

🤖 Use with AI agents

Structured, source-linked SEC data built for LLM and agent pipelines — point Claude, the OpenAI Agents SDK, an n8n flow or any MCP-aware client at it and pull clustered insider buying and selling on demand.

Sample agent prompt:

Find US stocks where 2+ insiders bought over $100k in the last 60 days.

Agentic payments (x402): Supports agentic payment via x402 — agents can call this actor with USDC, no API key required.

⏰ Run on a schedule

The recurring frame is the point — schedule a daily or weekly pull:

{
  "tickers": [
    "AAPL",
    "MSFT",
    "NVDA"
  ],
  "limit": 50
}

🔗 Related SEC actors

More insider trackers: Form 4 Monitor, Form 4 Scraper, Form 4 Tracker, Form 3 Tracker

Agent front doors: SEC Corporate Events MCP, Regulatory Filings MCP

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Data parsed from public SEC EDGAR filings. Factual public SEC/EDGAR data — not financial or investment advice. Not affiliated with the U.S. SEC.