The Insider Index

• A data aggregation platform for institutional market disclosures
• A convergence engine that scores overlap across Congress, hedge fund, and index fund positions
• A tool that normalizes fragmented government and SEC filings into a unified view
• Available as a native iOS app

Any institutional manager with investment discretion over at least $100 million in section 13(f) securities must file Form 13F with the SEC every quarter. It lists what they held on the last day of that quarter: the issuer, the CUSIP, the share count and the dollar value. It is a photograph of a position, taken at a fixed moment, developed slowly.

What it does not contain is the interesting part. There is no purchase date, no price paid, no reason, and no indication of whether the position was opened on the first day of the quarter or the last. A 13F tells you a fund held shares of something. It cannot tell you when, or why, or whether they still do.

17 CFR 240.13f-1(a)(1)

The Stop Trading on Congressional Knowledge Act of 2012 requires members of Congress to disclose securities transactions in a periodic transaction report. The report names the security, the type of transaction, the date it happened, and a range for the amount rather than a figure. Filing is due within 45 days.

Two consequences follow, and they pull in opposite directions. The disclosure is unusually specific about timing — you learn the actual transaction date, which a 13F never gives you. And it is unusually vague about size.

STOCK Act, Pub. L. 112-105 §6

A congressional report can arrive 45 days after the trade. The deadline is the mechanism that turns a private decision into a public record. And because every source has its own deadline, filings from different groups arrive at different times about the same period.

STOCK Act, Pub. L. 112-105 §6

• Not a news outlet or financial media service
• Not a source of rumors, tips, or speculation
• Not a prediction engine or stock recommendation service
• Not financial advice in any form

All filing data used by The Insider Index comes from public, legally disclosed sources. Congress trade disclosures are sourced from House and Senate periodic transaction reports, via Quiver and the House Clerk, under the STOCK Act. Hedge fund holdings are derived from SEC EDGAR 13F filings. Index fund compositions come from SEC EDGAR filings. No non-public or insider information is used.

The Insider Index is an informational platform. It does not provide financial advice, investment recommendations, or trading signals. All filing data presented is derived from publicly available government and regulatory filings.

I built this because the data was already public — it just wasn't accessible. One engineer, every layer, from the API to the App Store. San Francisco.

• EDGAR
• House Clerk
• Senate eFD