ASX LIMITED — M&A Activity 2023

Apr 26, 2023

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27 April 2023

Australian Securities and Investments Commission ASX Market Announcements Office Mr Nathan Bourne ASX Limited Senior Executive Leader, Market Infrastructure 20 Bridge Street Level 5, 100 Market Street SYDNEY NSW 2000 SYDNEY NSW 2000

ASX RECEIVES NOTICE OF MEETING FROM YIELDBROKER TO VOTE ON PROPOSED SALE

ASX has received a Notice of Meeting for a meeting to be held on 22 May 2023 to consider and vote on a proposal to sell 100% of the shares in Yieldbroker Pty Limited ( Yieldbroker ) to a wholly owned subsidiary of Tradeweb Markets LLC ( Proposed Transaction ).

The proposed consideration for the sale is A$125m, on a cash-free, debt-free basis and assuming a normalised level of working capital.

The Proposed Transaction has been unanimously recommended to Yieldbroker shareholders by the Yieldbroker board. Approval of Yieldbroker shareholders is being sought to meet certain Yieldbroker constitutional requirements.

ASX owns approximately 43% of Yieldbroker. The remaining shares are owned by a number of domestic and international banks and current and former Yieldbroker employees. The value of ASX’s interest under the terms of the Proposed Transaction is approximately A$55m, after transaction costs. ASX’s current carrying value of its interest in Yieldbroker is approximately A$30m.

The Proposed Transaction is subject to a number of conditions and there is no certainty that it will proceed. If the Proposed Transaction proceeds as outlined above, ASX will recognise a reversal of prior year impairment losses of approximately A$25m after tax. This gain will be classified as a significant item in ASX’s financial reporting framework.

ASX’s participation in the Proposed Transaction is subject to ASX Board approval.

Release of market announcement authorised by:

Johanna O’Rourke

Group General Counsel and Company Secretary

Further enquiries:

Media

David Park Senior Adviser, Media and Communications

• T +61 2 9227 0010

• M +61 429 595 788

• E david.park@asx.com.au

Analysts/Investors

Simon Starr

General Manager, Investor Relations and Sustainability

• T +61 2 9227 0623

• M +61 416 836 550

• E simon.starr@asx.com.au

20 Bridge Street Sydney NSW 2000

PO Box H224 Customer service 13 12 79 Australia Square NSW 1215 asx.com.au

ASX Limited ABN 98 008 624 691