Item 1A. RISK FACTORS

There have been no material changes to the disclosure regarding risk factors presented in Part I, Item 1A, of the Company’s Annual Report on Form 10-K for the year ended September 30, 2022.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

In March 2021, the Company's Board of Directors approved a $4.0 billion increase to the Company's share repurchase authorization, adding to the $2.0 billion remaining as of December 31, 2020 under the prior share repurchase authorization approved in 2019. The share repurchase authorization does not have an expiration date and may be amended or terminated by the Board of Directors at any time without prior notice. During the three months and six months ended March 31, 2023, the Company repurchased approximately $93 million and $247 million of its ordinary shares on an open market. As of March 31, 2023, approximately $3.4 billion remains available under the share repurchase authorization.

The following table presents information regarding the repurchase of the Company’s ordinary shares by the Company as part of its publicly announced program during the three months ended March 31, 2023.

During the three months ended March 31, 2023, acquisitions of shares by the Company from certain employees in order to satisfy employee tax withholding requirements in connection with the vesting of restricted shares were not material.