Learn

Following US insider and congressional trades from an Australian time zone

Dan Seaton, FounderPublished 12 October 2026

The data an Australian investor needs to follow US insider buying is already public and already free. Company insider trades sit on EDGAR, the filing system run by the US Securities and Exchange Commission, which the SEC describes as free public access to millions of filed documents. Congressional trades sit in two other places: the Clerk of the US House of Representatives' financial disclosure search, and the Senate's electronic financial disclosure system.

Being in Brisbane or Perth does not change your access to any of it. What changes is everything around the data: filings land while you are asleep, the market they describe is shut by the time you read them, every figure is in US dollars, and there is paperwork between an Australian resident and a US share. This is general information, not personal advice.

Where the data actually comes from

US company insiders file their own trades. Under Section 16(a) of the Securities Exchange Act of 1934, directors, officers and holders of more than 10 per cent of a class of a company's equity securities lodge a Form 4 with the SEC when their holding changes. It carries the transaction date, a transaction code, the share count, the price and the holding afterwards, which rewards reading a Form 4 box by box.

Members of Congress disclose separately, under the STOCK Act. The House periodic transaction report covers purchases, sales and exchanges of securities, cryptocurrencies included, where the amount exceeds US$1,000, and it takes in assets owned by the filer, their spouse or their dependent children. Senate rules say the same for senators and senior staff. One detail shapes the value of all of it: the amount is reported by ticking a band, the lowest being US$1,001 to US$15,000, rather than as a figure, which is part of what politician trade data can and cannot tell you.

Neither source charges and neither is geoblocked. A tool built on this data covers US listed companies for one reason: US insiders must file their own trades on a short clock.

How long before a trade shows up

For company insiders the clock is tight. The SEC requires a Form 4 before the end of the second business day following the day the transaction was executed, so you are usually looking at something one to three days old, stretched by US weekends and holidays.

For Congress it is far longer. A periodic transaction report is due by the earlier of 30 days from the filer becoming aware of the transaction and 45 days from the transaction itself. A congressional trade can be six weeks old the first time anyone outside that office sees it.

The time zone problem

The core session on the New York Stock Exchange runs 9.30am to 4pm US Eastern time. In eastern Australian hours the US open lands between about 11.30pm and 1.30am, and the close between about 6am and 8am the next morning. The gap shifts across the year because Australian and US daylight saving changes do not line up, and Perth sits two hours behind the eastern states on top of that.

So filings arrive overnight and you read them at breakfast, after the session they describe has closed. The US market has had hours with the information, and the next regular chance to act is that night. An order placed during the Australian working day waits for the US open, unless your broker offers the thinner extended sessions either side of it.

That forced pause is not the handicap it looks like. A filing that still seems worth acting on sixteen hours later is a better candidate than one that felt urgent at 7am.

Everything is priced in US dollars

Every price on a Form 4, every band on a congressional disclosure and every quote on a US listed share is in US dollars. Your result in Australian dollar terms is the share movement plus the currency movement, and the two can pull in opposite directions.

Conversion happens when you fund the account, buy, sell and receive dividends. What it costs is a broker matter rather than a data one, and worth knowing before the first trade.

What you need in place to trade US shares

Two things. The first is a broker that gives Australian residents access to US markets, which is separate from an account reaching only the ASX. An existing Australian share trading account does not necessarily cover it.

The second is the US withholding tax certification. Brokers offering US market access ask Australian clients to complete IRS Form W-8BEN, the Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals). The IRS says a foreign beneficial owner of an amount subject to withholding gives it to the withholding agent or payer on request, whether or not a reduced rate is claimed. On dividends, the IRS tax treaty table lists 15 per cent for Australia in the general column for dividends paid by US corporations.

How any of that interacts with your Australian return depends entirely on your own circumstances. Nothing here is personal, tax or legal advice. Get that from a registered tax agent or a licensed adviser.

The traps that catch people

The most common is treating a planned sale as a signal. A Form 4 carries a tick box indicating the transaction was made under a contract, instruction or written plan intended to satisfy Rule 10b5-1(c), with the plan's adoption date in the explanation. A sale under a plan adopted months earlier was scheduled long before it printed, which is why a 10b5-1 plan changes the reading.

Close behind is counting every acquisition as a purchase. Grants, vesting and shares withheld to cover tax all appear as acquisitions, often with no price stated, and none involve an insider spending their own money. The third is reading a value band as a figure, when the disclosure only puts the transaction in a range.

How InsiderPulse handles this

InsiderPulse reads Form 4 filings as they arrive on EDGAR and congressional disclosures as they are published, separating them by transaction code so a purchase is not stacked next to a grant. Those are two of the inputs behind the 0 to 100 score each covered asset carries, alongside options activity, dark pool and volume data, prices and news. Coverage is US listed stocks and ETFs plus crypto, forex and commodities, not ASX shares. Global Sessions shows where the world's trading day sits, and Ask Pulsey answers questions with sources cited so you can open the original filing. The wider category is covered in AI investing tools in Australia.

InsiderPulse is a data tool. Nothing on this page is financial advice.

Frequently asked questions

Can an Australian investor access SEC insider filings for free?
Yes. Form 4 filings are published on EDGAR, the SEC's filing system, which the SEC describes as offering free public access, with no Australian restriction. Congressional trades appear through the Clerk of the House's financial disclosure search and the Senate's electronic financial disclosure system, searchable back to 2012, also free.
What time do US insider filings land in Australian hours?
Filings are lodged through the US business day, which is overnight in Australia. The New York Stock Exchange core session runs 9.30am to 4pm US Eastern time, roughly 11.30pm to 1.30am for the open and 6am to 8am for the close in eastern Australian terms, shifting with daylight saving. So most Australians read a day's filings after that session has closed.
Do I need a W-8BEN to buy US shares from Australia?
Brokers offering Australian residents access to US markets ask for it. IRS Form W-8BEN is the Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals), which the IRS says a foreign beneficial owner gives to the withholding agent or payer on request, whether or not a reduced rate is claimed. Your tax position depends on your circumstances, so this is general information only.
How old can a congressional stock trade be when it becomes public?
Up to about six weeks. House and Senate rules require a periodic transaction report by the earlier of 30 days from the filer becoming aware of the transaction and 45 days from the transaction itself, for amounts over US$1,000 involving the filer, their spouse or dependent children.

See the data behind every score.

Every signal on every asset, in one board. Start free, upgrade when it earns it.

View plans

Related guides