What Is the STOCK Act? How Congress Discloses Its Stock Trades

The STOCK Act is a 2012 US law that requires members of Congress and senior federal officials to publicly disclose their stock and securities trades within 45 days, through filings called Periodic Transaction Reports. It is the reason the public can see, with a delay, what lawmakers are buying and selling.

Congressional trading draws steady attention because members of Congress can vote on legislation and sit in briefings that touch the companies and sectors they trade. This page explains what the STOCK Act requires, who it covers, how the disclosures work, what the data does and does not show, and how Kresmion tracks it. It is descriptive throughout.

What the STOCK Act is

The Stop Trading on Congressional Knowledge Act, signed in 2012, affirmed that members of Congress are not exempt from insider trading law and added a public disclosure regime on top of it. Its most visible effect is the requirement that covered officials report their securities transactions to the public within a set window, rather than only in an annual summary.

Who it covers and what they must file

The law covers members of the House and Senate, congressional candidates, and thousands of senior executive branch officials. Covered people, and transactions by their spouses and dependent children, must be reported.

The core disclosure is the Periodic Transaction Report, or PTR. A covered official must file a PTR within 45 days of a transaction. The report names the asset, the type of transaction (a purchase or a sale), the date, and an amount, and it is posted publicly by the House Clerk and the Senate.

What the data does and does not show

Two limits shape how the disclosures should be read.

First, amounts are reported in ranges, not exact figures. A trade is disclosed within a band, for example between 1,001 and 15,000 dollars, so the precise size is never public. Any dollar total built from the disclosures is an estimate based on those ranges.

Second, the 45 day lag means the public sees a trade well after it happened. The disclosure is a record of what was done, not a real time signal, and prices will often have moved by the time a filing appears.

There is also the matter of enforcement. The penalty for filing a PTR late is a small fixed fee, and compliance has been uneven, so the dataset can contain late and amended filings. A careful reading treats the disclosures as a public record with known gaps, not a clean feed.

How Kresmion tracks it

Kresmion ingests congressional transaction disclosures as one of its intelligence layers, so a lawmaker's reported trades can be viewed alongside insider filings, institutional positioning, and the rest of the cross asset picture. Because the amounts are ranges and the timing lags, Kresmion treats the data as context on a name rather than a precise measure, and pairs it with the primary source filing.

Key takeaways

Frequently asked questions

What does the STOCK Act actually require?

It affirms that members of Congress are subject to insider trading law, and it requires covered officials to publicly report their securities transactions within 45 days through a Periodic Transaction Report. The reports are posted by the House Clerk and the Senate.

Who has to report their trades?

Members of the House and Senate, congressional candidates, and thousands of senior executive branch officials, including transactions made by their spouses and dependent children.

How quickly are congressional trades disclosed?

Within 45 days of the transaction. That lag is why the disclosures are a record of what happened rather than a real time view, and prices have often moved by the time a report is public.

Do the filings show exactly how much was traded?

No. Trades are disclosed in dollar ranges, not exact amounts, so any total is an estimate. That is one reason the data is read as directional context on a name rather than a precise figure.

Is it legal for members of Congress to trade stocks?

Yes, trading is legal, but it is subject to insider trading law and to the STOCK Act's disclosure rules. There is an ongoing public debate about whether members should be allowed to trade individual stocks at all, which is separate from what the current law requires.

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Source: Stop Trading on Congressional Knowledge (STOCK) Act of 2012; Periodic Transaction Report disclosures published by the US House Clerk and the US Senate. Kresmion ingests these disclosures as an intelligence layer. This page is information, not investment advice. Kresmion Research.