ABACUS STORAGE KING — Major Shareholding Notification 2026

May 12, 2026

Form 605
Corporations Act 2001
Section 671B

Notice of ceasing to be a substantial holder

To Company/registered scheme/notified foreign passport fund name

Abacus Storage King (ASX: ASK) comprising Abacus Storage Operations Limited (ACN 112 457 075) (ASOL) and Abacus Storage Property Trust (ARSN 111 629 559) (ASPT)

ACN/ARSN/APFRN
ACN 112 457 075 / ARSN 111 629 559

NFPFRN (if applicable)

1. Details of substantial holder (1)

Name
Each of Runway Technologies Pty Ltd (ACN 621 556 376) (Runway Technologies) and its associates named in Annexure A to this form (NSR Entities).

ACN/ARSN/APFRN (if applicable)
Refer to Annexure A

NFPFRN (if applicable)

The holder ceased to be a substantial holder on
11/05/2026

The previous notice was given to the company, or the responsible entity for a registered scheme, or the operator of a notified foreign passport fund on
11/07/2025

The previous notice was dated
11/07/2025

1. 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, scheme or fund, since the substantial holder was last required to give a substantial holding notice to the company, scheme or fund 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
11 May 2026	Runway Technologies and the NSR Entities	Pursuant to the transfer of the Stapled Securities by Runway Technologies (as the previous registered holder of the Stapled Securities) to ITG Australia TS Sub Pty Ltd ACN 642 379 235 as trustee for the Iridium Platform Securities Trust III (Iridium III), as disclosed in the Form 604 given to ASX by Iridium III (amongst others) on 12 May 2026 (ASK Transfer). Neither Runway Technologies nor any of the NSR Entities has a relevant interest in the Stapled Securities following the ASK Transfer.	$1.400 per Stapled Security	Fully paid ordinary stapled securities, comprising one ordinary share in ASOL and one unit in ASPT (Stapled Securities), 135,996,567	135,996,567

1. 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 securities in the company, scheme or fund are as follows:

Name and ACN/ARSN/APFRN (if applicable) and NFPFRN (if applicable)	Nature of association
N/A	Please refer to the Form 604 notice of change of interests of substantial holder in respect of Iridium III (and others) released to the ASX on 12 May 2026.

1. Addresses

The addresses of persons named in this form are as follows:

Name	Address
Runway Technologies and the NSR Entities	Level 16, 1 Eagle Street, Brisbane QLD 4000

Signature

print name Andrew Catsoulis
capacity
Director of Runway Technologies and each NSR Entity

sign here

date
12/05/2026

L\364509693.4

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DIRECTIONS

(1) If there are a number of substantial holders with similar or related relevant interests (eg. a corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly set out in paragraph 4 of the form.

(2) See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001.

(3) See the definition of "associate" in section 9 of the Corporations Act 2001.

(4) Include details of:

(a) Any relevant agreement or other circumstances because of which the change in relevant interest occurred. If subsection 671B(4) applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accurate details of any contract, scheme or arrangement, must accompany this form, together with a written statement certifying this contract, scheme or arrangement; and

(b) any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies).

See the definition of "relevant agreement" in section 9 of the Corporations Act 2001.

(5) Details of the consideration must include any and all benefits, money or otherwise, that any person from whom a relevant interest was acquired has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included of any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired.

(6) The voting shares of a company constitute one class unless divided into separate classes.

(7) Give details, if appropriate, of the present association and any change in that association since the last substantial holding notice.

L\364509693.4

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L\364509693.4

ANNEXURE A

This is Annexure “A” of 1 page(s) (including this page) referred to in the accompanying Form 605 Notice of ceasing to be a substantial holder

print name	Andrew Catsoulis	capacity	Director of Runway Technologies and each NSR Entity
sign here	Catsoulis	date	12/05/2026

NSR Entities name and ACN or NZ company number

National Storage Holdings Limited ACN 166 572 845
National Storage Investments Pty Ltd ACN 131 896 421
National Storage Pty Ltd ACN 094 382 831
National Storage (Operations) Pty Ltd ACN 095 053 179
National Storage Developments Pty Ltd ACN 106 713 642
Wine-Ark Pty Ltd ACN 090 902 686
National Storage Financial Services Limited ACN 600 787 246
National Storage (NZ) Pty Ltd ACN 604 677 643
National Storage Limited (New Zealand Company) Company Number: 563 7547
NS Development Co 1 Pty Ltd ACN 607 784 458
Southern Cross Storage Operations Pty Limited ACN 152 503 163
National Storage No.2 Pty Ltd ACN 629 864 017
National Storage Finance Pty Ltd ACN 653 538 071
National Storage No.3 Pty Ltd ACN 677 910 897