Tool detail
Massive
Returns SEC Form 4 insider-ownership filings, filterable by issuer, owner, ticker, date, and transaction code.
Categories: Company financials
Use when
- find recent insider buy or sell filings for a company
- track Form 4 filings by a specific reporting owner
- filter Form 4 filings by transaction code (e.g. purchase or sale)
Not for
- not other SEC form types (this is Form 4 only)
- not real-time trade execution data
Inputs
GET query params, all optional: filing_date (+ .gt/.gte/.lt/.lte), form_type, issuer_cik (+.any_of), owner_cik (+.any_of), tickers (+.any_of/.all_of), transaction_code, limit (max 10000, default 100), sort
Inputs undocumented: property name outside Onelayer's profile
Endpoint
- Method
GET- URL
https://agent.massive.com/stocks/filings/vX/form-4
Payment
- Protocol
- x402
- Listed price
- 0.01 USDC per call on Base
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- GET https://agent.massive.com/stocks/filings/vX/form-4
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z