Announcement PDF Form 605 Corporations Law Section 671B Notice of ceasing to be a substantial holder To: Company Name/Scheme STARPHARMA HOLDINGS LIMITED ACN/ARSN 078 532 180 1. Details of substantial holder (1) Name UBS Group AG and its related bodies corporate ACN/ARSN (if applicable): The holder ceased to be a substantial shareholder on 10 March 2026 The previous notice was given to the company on 03 March 2026 The previous notice was dated 27 February 2026 2. Changes in relevant interests Particulars of each change in, or change in the nature of, a relevant interest (2) of the substantial holder or an associate (3) in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme are as follows: Date of change Person whose relevant interest changed Nature of Change (4) Consideration given in relation to change (5) Class (6) and Number of securities affected Person’s votes affected Please see Appendix A. 3. Changes in association The persons who have become associates (3) of, ceased to be associates of, or have changed the nature of their association (7) with, the substantial holder in relation to voting interests in the company or scheme are as follows: Name and ACN/ARSN (if applicable) Nature of association N/A N/A 4. Addresses The addresses of persons named in this form are as follows: Name Address N/A N/A SIGNATURE Print Name: Dominic Eichrodt Capacity: Authorised signatory Sign Here: Date: 12 March 2026 Print Name: Ruby Ko Capacity: Authorised signatory Sign Here: Date: 12 March 2026 Contact details for this notice: --------------------------------------------------------------- Ruby Ko Group Compliance, Operational Risk Control. (T) +852 3712 2802 --------------------------------------------------------------- SPL - Appendix A Date of change Person whose relevant interest changed Nature of Change Consideration given in relation to change Number of securities Class 02-Mar-26 UBS Securities Australia Ltd Sell 1,983 (4,588) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 1,919 4,369 Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 62,786 (142,825) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 20,183 46,249 Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 179 (412) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 4,631 10,470 Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 3,094 (7,112) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 1,198 2,754 Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 1,836 (4,129) Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 1,403 (3,141) Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 14,891 (33,150) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 21,719 49,986 Ordinary 02-Mar-26 UBS Securities Australia Ltd Sell 37,647 (85,873) Ordinary 02-Mar-26 UBS Securities Australia Ltd Buy 6,378 14,693 Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 7,478 18,163 Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 69,471 172,556 Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 2,915 (6,941) Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 1,145 (2,864) Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 738 1,892 Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 10,419 25,631 Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 14,158 (34,365) Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 1,074 2,685 Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 117 300 Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 8,518 (21,005) Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 16,907 40,977 Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 3,883 (9,708) Ordinary 03-Mar-26 UBS Securities Australia Ltd Sell 28,207 (67,676) Ordinary 03-Mar-26 UBS Securities Australia Ltd Buy 32,663 80,689 Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 13,775 35,752 Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 1,974 5,026 Ordinary 04-Mar-26 UBS Securities Australia Ltd Sell 1,076 (2,658) Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 13,384 35,577 Ordinary 04-Mar-26 UBS Securities Australia Ltd Sell 5,406 (13,663) Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 9,815 25,115 Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 12,354 32,089 Ordinary 04-Mar-26 UBS Securities Australia Ltd Sell 4,543 (11,486) Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 6,369 16,643 Ordinary 04-Mar-26 UBS Securities Australia Ltd Sell 52,168 (136,101) Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 36,321 92,869 Ordinary 04-Mar-26 UBS Securities Australia Ltd Sell 184,185 (480,274) Ordinary 04-Mar-26 UBS Securities Australia Ltd Buy 89,758 235,585 Ordinary 05-Mar-26 UBS Securities Australia Ltd Buy 8,249 20,846 Ordinary 05-Mar-26 UBS Securities Australia Ltd Sell 5,595 (14,165) Ordinary 05-Mar-26 UBS Securities Australia Ltd Sell 3,660 (9,759) Ordinary 05-Mar-26 UBS Securities Australia Ltd Buy 1,738 4,471 Ordinary 05-Mar-26 UBS Securities Australia Ltd Sell 2,385 (6,027) Ordinary 05-Mar-26 UBS Securities Australia Ltd Buy 10,579 26,851 Ordinary 05-Mar-26 UBS Securities Australia Ltd Sell 2,216 (5,670) Ordinary 05-Mar-26 UBS Securities Australia Ltd Buy 11,117 28,403 Ordinary 05-Mar-26 UBS Securities Australia Ltd Sell 6,938 (17,565) Ordinary 05-Mar-26 UBS Securities Australia Ltd Buy 25,390 64,869 Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 7,078 (17,691) Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 14,020 (35,005) Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 2,371 (5,855) Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 3,192 (7,964) Ordinary 06-Mar-26 UBS Securities Australia Ltd Buy 371 939 Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 3,150 (7,875) Ordinary 06-Mar-26 UBS Securities Australia Ltd Buy 1,027 2,567 Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 16,473 (41,704) Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 7,639 (19,348) Ordinary 06-Mar-26 UBS Securities Australia Ltd Sell 9,264 (23,484) Ordinary 06-Mar-26 UBS Securities Australia Ltd Buy 7,611 19,127 Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 7,206 (19,414) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 8,180 (22,107) Ordinary 09-Mar-26 UBS Securities Australia Ltd Buy 8,882 23,161 Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 5,445 (14,229) Ordinary 09-Mar-26 UBS Securities Australia Ltd Buy 8,567 22,906 Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 1,418 (3,660) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 391 (1,028) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 143 (376) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 3,376 (8,884) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 8,556 (23,255) Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 6,815 (18,150) Ordinary 09-Mar-26 UBS Securities Australia Ltd Buy 29,349 78,140 Ordinary 09-Mar-26 UBS Securities Australia Ltd Sell 23,201 (60,928) Ordinary 09-Mar-26 UBS Securities Australia Ltd Buy 12,290 33,216 Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 4,014 (10,034) Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 3,384 (8,609) Ordinary 10-Mar-26 UBS Securities Australia Ltd Buy 6,078 15,329 Ordinary 10-Mar-26 UBS Securities Australia Ltd Buy 534 1,335 Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 64 (159) Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 901 (2,253) Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 5,334 (13,336) Ordinary 10-Mar-26 UBS Securities Australia Ltd Buy 5,806 14,736 Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 3,662 (9,349) Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 4,935 (12,493) Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 2,597 (6,617) Ordinary 10-Mar-26 UBS Securities Australia Ltd Buy 715 1,813 Ordinary 10-Mar-26 UBS Securities Australia Ltd Sell 17,230 (43,831) Ordinary 10-Mar-26 UBS Securities Australia Ltd Buy 10,565 26,714 Ordinary 10-Mar-26 UBS AG London Branch Return of Rehypothecated position N/A (7,289,052) Ordinary 10-Mar-26 UBS AG London Branch Return of Rehypothecated position N/A (18,739,303) Ordinary