Corporate insider filings

SEC Form 4 insider trading tracker and screener

Quick answer

An SEC Form 4 insider trading tracker lists the purchases, sales and ownership changes that company insiders report to the SEC on Form 4. CaymanBot organizes those public filings by company and reporting person and connects each one with the company’s chart, news, earnings and institutional activity.

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Form 4 activity

Monitor reported transactions from officers, directors and significant shareholders.

Transaction clarity

Separate open-market activity from grants, exercises and other ownership changes.

Research context

Compare insider activity with company events, price action and fund ownership.

What an insider trading tracker shows

Corporate insiders such as officers, directors and certain large shareholders report many ownership changes to the SEC, commonly on Form 4. These filings can include open-market purchases and sales, option exercises, stock awards, gifts, tax-related dispositions and other transaction codes.

The transaction type matters. An open-market purchase uses the insider’s capital and may carry different information than a scheduled sale, compensation grant or automatic tax withholding. CaymanBot helps organize the filing data so traders can focus on the activity relevant to their research question.

The screener filters by transaction type, and the guide to Form 4 transaction codes explains what each code, such as P for a purchase or S for a sale, means.

How to evaluate insider buys and sells

Insider activity is strongest as one input among many. Buying can express confidence, but it may also be small relative to the insider’s wealth. Selling can fund taxes, diversification or personal needs and does not automatically imply a negative company view.

Check the transaction code and whether the trade occurred on the open market.
Compare the transaction size with the insider’s remaining ownership.
Look for clusters involving several insiders rather than one isolated filing.
Review whether sales were made under a disclosed trading plan.
Connect activity with earnings, guidance, company news and valuation changes.

One view across ownership signals

CaymanBot combines corporate insider filings with congressional disclosures and quarterly 13F holdings. Those datasets have different reporting rules and delays, but viewing them together can reveal where ownership signals align or diverge. Charts, news, earnings and options activity provide the market context around those filings.

SEC filings are public records and can be amended. CaymanBot is a research interface, not a substitute for reviewing the original filing when exact legal details matter.

For stock trades disclosed by members of Congress, see the congressional stock tracker.

Frequently asked questions

Straight answers to common questions on this topic.

What is SEC Form 4?

Form 4 reports many changes in beneficial ownership by company officers, directors and certain shareholders. It identifies the reporting person, security, transaction date, code, amount and resulting ownership.

Does insider selling mean a stock will fall?

No. Insiders sell for many reasons, including diversification, taxes and planned transactions. The type, size, pattern and surrounding company context all matter.

What is insider cluster buying?

Cluster buying describes purchases by multiple insiders in a relatively short period. Traders may view the pattern as more informative than one small isolated purchase, but it is not a guarantee.

What can I filter in the Form 4 insider trading screener?

Premium members can filter Form 4 transactions by ticker, by transaction type (purchases coded P, sales coded S, exercises coded M or gifts coded G), by minimum dollar value from $50,000 to $100 million and by a lookback of 7, 14, 30 or 60 days. A cluster buys card lists stocks where 3 or more insiders reported purchases in filings from the past 7 days.

How quickly do new Form 4 filings show up?

CaymanBot checks SEC EDGAR for new Form 4 filings every 15 minutes from 9 AM to 5:45 PM Eastern on weekdays. Insiders generally have two business days after a transaction to file, so a trade can reach EDGAR, and the tracker, a few days after it happened.

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