SEC Form S-1 IPO Pipeline, S-3 Dilution & Form 144 Insider Sale Notice API

Extract real-time SEC EDGAR Form 144 (Proposed Restricted Stock Sales), Form S-1 and F-1 (IPO Registrations), Form S-3 (Shelf Offerings and Share Dilution), Form 424B4 (Final IPO Pricing Prospectuses), and EFFECT notices directly into clean JSON, CSV, or Excel datasets.

Built for quantitative traders, short-bias hedge funds, venture capital and IPO analysts, B2B enterprise sales teams, n8n and Make automation workflows, and AI agents (Claude MCP and Cursor)—with zero SEC API keys or residential proxies required.

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Why Choose This SEC Form S-1 IPO, S-3 Dilution & Form 144 Scraper?

Feature	What You Get
Rule 144 Insider & VC Lockup Sale Alerts	Captures Form 144 and 144/A notices filed when startup founders, executives, or early venture capital funds register to sell restricted pre-IPO stock on the open market.
Complete IPO & Secondary Offering Pipeline	Tracks initial IPO registrations (S-1 and F-1), updated pricing amendments (S-1/A), final priced prospectuses (424B4), and SEC Notices of Effectiveness (EFFECT).
Small-Cap & Mid-Cap Dilution Detection	Monitors Form S-3, S-3ASR, and 424B5 shelf takedowns to warn traders before a company dilutes shareholders with a secondary stock offering.
Zero Proxy or API Key Costs	Connects directly to official SEC EDGAR endpoints with compliant rate-limiting—keeping your run costs near zero.
AI Agent & MCP Server Ready	Plug directly into Claude Desktop, Cursor, LangChain, n8n, Make, or Zapier for automated daily IPO and Form 144 supply alerts.

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What Data Does This Actor Extract? (Sample JSON Output)

Every IPO registration, shelf offering, or Form 144 sale notice is flattened into a clean, structured JSON record:

{
  "ticker": "PLTR",
  "companyName": "PALANTIR TECHNOLOGIES INC",
  "cik": "0001321655",
  "formType": "144",
  "filingDate": "2026-09-15",
  "acceptanceDateTime": "2026-09-15T16:12:08.000Z",
  "catalystType": "Rule 144 Notice of Proposed Insider/VC Sale",
  "marketImpactSignal": "BEARISH / SUPPLY ALERT (Founder/VC/Executive Selling Restricted Shares)",
  "isForm144SaleNotice": true,
  "isIpoOrOffering": false,
  "accessionNumber": "0001959173-26-004112",
  "secFilingUrl": "https://www.sec.gov/Archives/edgar/data/1321655/000195917326004112/primary_doc.xml",
  "secIndexUrl": "https://www.sec.gov/Archives/edgar/data/1321655/000195917326004112/0001959173-26-004112-index.htm"
}

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How to Use SEC Form S-1 IPO & Form 144 Sale Notice Scraper

1. Enter Stock Tickers: Add one or more US stock ticker symbols (e.g., NVDA, PLTR, RDDT, ARM, TSLA, AAPL, CRWD). The Actor resolves tickers to 10-digit SEC Central Index Keys (CIKs) automatically.
2. Choose Filing Category Filter: Select ALL for both Form 144 and IPO/Offering filings, FORM_144_ONLY strictly for Rule 144 restricted stock sale notices, or IPO_AND_OFFERINGS_ONLY for S-1, F-1, S-3, 424B4, and EFFECT filings.
3. Set Max Filings Per Ticker: Choose how many recent filings to extract per company (default: 15).
4. Run & Export: Click Start and download your dataset in JSON, CSV, Excel, or XML, or connect directly via the Apify REST API.

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SEC Registration, Dilution & Form 144 Codes Reference

SEC Form	What It Reveals	Who Uses It
Form 144 / 144/A	Advance Notice of Proposed Sale of Restricted Securities — Required whenever an executive officer, director, affiliate, or VC fund plans to sell restricted shares exceeding 5,000 shares or USD 50,000 within a 3-month period.	Short sellers, momentum traders, and private wealth managers (spotting newly liquid tech executives).
Form S-1 / F-1	Initial Public Offering (IPO) Registration Statement — Filed by private US (S-1) and international (F-1) unicorns preparing to list on NYSE or Nasdaq.	Venture capital analysts, B2B enterprise sales teams, and IPO calendar newsletters.
Form S-3 / S-3ASR	Shelf Registration Statement — Filed when a public company registers to issue new shares or debt over time (creating overhang or secondary dilution risk).	Small-cap and biotech traders, dilution monitors, and event-driven hedge funds.
Form 424B4 & 424B5	Final Priced IPO Prospectus (424B4) & Active Shelf Takedown (424B5) — Confirms the exact share price and share count of an active offering.	ECM desks, algorithmic traders, and dilution alert bots.
EFFECT	SEC Notice of Effectiveness — Official green light from the SEC confirming that an S-1 or S-3 registration statement is now legally effective and shares can be sold.	Short-bias funds and lockup/warrant expiration trackers.

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Transparent Pay-Per-Event Pricing

You only pay for the exact filings extracted:

• Actor Startup (apify-actor-start): USD 0.01 per run.
• Extracted Filing (ipo-or-144-extracted): USD 0.005 per parsed IPO, Shelf, or Form 144 filing (USD 5.00 per 1,000 filings).
• Free Tier Friendly: With Apify's free USD 5.00 monthly credit, you can extract nearly 1,000 IPO and Form 144 records every month for free.

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Top Use Cases

• Pre-Sale Insider & VC Supply Alerts (Form 144): Unlike Form 4 (which is filed up to 2 days AFTER an insider already sold), Form 144 is filed as a notice of PROPOSED sale at or before the order is placed—giving traders an early warning of large insider or VC block sales.
• Small-Cap & Biotech Dilution Protection (S-3 / 424B5 / EFFECT): Automatically monitor watchlist tickers for new S-3 shelf registrations and EFFECT notices before overnight secondary offerings occur.
• Private Wealth Management & Executive Prospecting: Wealth advisors and tax attorneys monitor Form 144 filings to identify tech executives and founders liquidating USD 1M to USD 50M+ in restricted company stock.
• AI Financial Research Agents (MCP): Give Claude Desktop, Cursor, or LangChain live access to official SEC IPO and Form 144 filings via Apify's Model Context Protocol (MCP) server.

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Frequently Asked Questions (FAQ)

What is the difference between SEC Form 144 and SEC Form 4?

SEC Form 144 (Notice of Proposed Sale of Securities) is filed when a corporate insider, affiliate, or early VC investor intends to sell restricted or control stock under Rule 144. Because Form 144 must be filed concurrently with placing the sell order with a broker (whereas Form 4 is filed up to two business days after execution), Form 144 often serves as an earlier signal of impending insider selling pressure.

Why do traders track SEC EFFECT filings?

An S-1 or S-3 registration statement does not allow shares or resale warrants to hit the public market until the SEC issues a Notice of Effectiveness (Form EFFECT). Tracking EFFECT filings tells traders the exact day locked-up PIPE shares, resale warrants, or new IPO shares become legally tradable.

How can I connect this SEC S-1 & Form 144 API to Python, Google Sheets, or n8n?

You can trigger this Actor via the Apify REST API, the apify-client Python or Node.js SDK, or the native Apify integration node inside n8n, Make, and Zapier to stream alerts directly into Telegram, Discord, Slack, or Google Sheets.

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