Sonic Healthcare director Katharine Giles increases stake

Katharine Giles, a director at Sonic Healthcare Limited, increased her indirect interest in the company on October 15, 2025. This change involved an on-market purchase of 1,000 fully paid ordinary shares at $21.1692 per share. The shares are held via the AKMC Superannuation Fund A/C.

Following this transaction, Ms. Giles's total indirect holdings in Sonic Healthcare Limited rose from 4,600 to 5,600 fully paid ordinary shares. The acquisition represents an on-market trade, as disclosed in the Appendix 3Y form filed on January 1, 2011, which serves as a Change of Director's Interest Notice.

The notice confirms that this transaction did not occur during a closed period requiring prior written clearance, as indicated by the "No" response in Part 3 of the document.