please take a look at the attached image as that is the question

in the answer please include the issue, rule with relevant case law and conclusion

Sam was the managing director of a public company, and her salary incentive scheme included a sizeable bonus that she would receive if the company's share price exceeded a particular target by the end of the year. By late December, the relevant share price was almost at the target, but not quite. Sam engaged a stock broker to buy some shares for her in the company, but to list her brother as the purchaser as the company had rules prohibiting directors from buying shares at that time. Although the share transaction was relatively small, it was enough to push up the company's share price above the target level, which ultimately meant Sam would received the sizeable bonus. Issue: Has Sam breached her director duties under the Corporations Act? . Rule: Director duties - sections 180 - 183. Duty to disclose material personal interests