Insider trading is one of the most serious breaches of trust in the financial world. It occurs when someone uses confidential, non-public information to buy or sell securities—such as shares or options—for personal gain or to help someone else profit. 

In Australia, insider trading is not only unethical; it’s a criminal offence with significant legal, financial, and reputational consequences. 

Recently, a Victorian man was sentenced to 11 months of imprisonment after pleading guilty to insider trading charges involving a $20 million capital raise by a medicinal cannabis company in 2021. This was as a result of the man having information that was then shared for profit about the company’s share placement, before it was publicly announced in July 2021.

What Constitutes Insider Trading?

Under the Corporations Act 2001, insider trading happens when a person:

1. Possesses price-sensitive information that is not publicly available;
2. Knows or ought reasonably to know that the information is confidential; and
3. Uses that information to trade, or passes it to someone else who does.

Examples include company directors acting on advance knowledge of an earnings report, employees leaking merger details, or advisers sharing confidential information that affects market prices.

Even if a person doesn’t make a profit, the mere act of trading (or encouraging others to trade) on inside information is illegal.

The Legal Consequences

The Australian Securities and Investments Commission (ASIC) actively investigates and prosecutes insider trading cases. Penalties can include:

• Criminal charges: Up to 15 years’ imprisonment for individuals found guilty.
• Civil penalties: Fines of more than $1.5 million for individuals and $15 million for corporations.
• Compensation claims: Courts may order offenders to compensate parties who suffered financial losses as a result of their actions. 

In addition to formal penalties, ASIC can ban individuals from managing corporations or providing financial services, effectively ending a professional career in finance or management.

Reputational and Career Damage

Beyond the courtroom, the consequences can be long-lasting. Individuals found guilty of insider trading often face severe reputational harm—making it difficult to regain trust or find future employment in any role requiring integrity or fiduciary responsibility.

For businesses, association with insider trading can erode investor confidence, damage brand reputation, and attract increased regulatory scrutiny.

A Matter of Integrity

At its core, insider trading undermines the fairness and transparency of Australia’s financial markets. It gives some participants an unfair advantage and reduces trust in the system as a whole.

The best safeguard is a strong culture of ethics and compliance. Employees, directors, and advisers should always seek clarification when in doubt and ensure that any trading decisions are based solely on publicly available information.