Earnings season is accelerating this week, as we hear from ASX 300 shares like Commonwealth Bank of Australia (ASX: CBA), Computershare Ltd (ASX: CPU), and CSL Ltd (ASX: CSL).

While all eyes will be on these results this week, we also have some other shares that are scheduled to trade ex-dividend for upcoming shareholder payouts.

Today, let's discuss the four ASX 300 shares that will trade 'ex-div' before the end of the week.

Remember, when a share trades ex-dividend, it draws a line in the sand over which shareholders are entitled to the dividend payment in question, and which miss out.

Put simply, anyone who has a company's shares to their name as of the market close the day before the ex-dividend date gets put on the dividend list. But those investors who buy the shares on or after the ex-dividend date miss out.

So if you are keen to bag any of the latest payouts we'll discuss today, you know what to do.

Four ASX 300 shares scheduled to trade ex-dividend this week

First up, we have healthcare stock ResMed Inc (ASX: RMD). Redmed is an ASX 300 share that pays out dividends every quarter, rather than the six-month norm on the ASX. This company's latest payment, worth an unfranked 5.3 US cents per share, will hit bank accounts on 20 March next month.

However, the ex-dividend date for this payout was set for today, 12 February. That means that the eligibility window for Resmed's latest dividend has already swung closed.

Next, we have ASX 300 real estate investment trust (REIT) Scentre Group (ASX: SCG). Scentre units will go ex-dividend for the company's next dividend distribution tomorrow, February 13.

This dividend will be worth an unfranked 8.6 cents per unit. It will be paid out to eligible investors on 28 February.

ASX 300 data centre share Dicker Data Ltd (ASX: DDR) is the next cab off the rank. Dicker Data is another stock that tends to pay out quarterly dividend payments. Its latest will be worth 11 cents per share, fully franked. It will hit investors' bank accounts next month on 3 March.

However, the ex-dividend date for this dividend has also been set for tomorrow, 13 February. That means if you are desperate to bank this paycheque and you don't already own shares, you'd better buy some Diker Data stock before the closing bell today.

Finally, let's discuss ASX 300 healthcare manufacturing share Ansell Ltd (ASX: ANN). Ansell dropped its latest earnings report earlier this week, which revealed that its next interim dividend would be 22.2 US cents per share, unfranked.

This dividend will be distributed on 6 March next month. Ansell shares will trade ex-dividend on Valentine's Day this Friday, 14 February.