13FLOW reads public SEC filings: what institutional managers report in 13F filings and what insiders disclose in Form 4 ownership reports. The product focuses on where those independent trails converge.
13F · Institutions
Slow capital
Managers above $100M in reportable securities file quarterly 13F portfolios. 13FLOW reconstructs holdings, changes and source accessions.
Form 4 · Insiders
Fresh intent
Corporate insiders report ownership transactions quickly. The signal focuses on disclosed P/S market-intent transactions and excludes mechanical awards from the score.
Confluence v1
The overlap
When tracked funds accumulate a stock and insiders buy, 13FLOW ranks that overlap as an exploratory screen.
What is the Confluence Score?+
It is a 0-100 ordinal research ranking for the overlap between institutional accumulation and insider buying. It is not a probability, not a calibrated historical frequency and not an expected-return estimate.
Are the weights calibrated?+
No. Confluence v1 is frozen as heuristic_default_v1. The methodology contract is public at /api/methodology/confluence-v1; the term “validated” is reserved for a frozen version that passes the published out-of-sample protocol.
Where do the data come from?+
The market dataset is derived from SEC EDGAR 13F-HR filings. Confluence also uses Form 4 ownership reports when a live or precomputed provider is explicitly configured. Production does not silently substitute sample data.
Which insider transactions are counted?+
Open-market or privately reported P/S transactions are treated as market-intent buys or sells. Grants, option exercises and tax withholding transactions can be parsed but are not treated as open-market conviction.
Is this investment advice?+
No. 13FLOW is a research screen over public filings. It provides source links, rankings and quality flags; investment decisions remain your responsibility.