Key Points
- 01Diamond Infraco has reaffirmed a A$5.10 per security cash offer for Atlas Arteria
- 02The bidder has declared the A$5.10 price as its “best and final” offer
- 03IFM’s holding in Atlas Arteria has risen to over 40% of securities
- 04The unconditional offer closes 25 June 2026, with extension only if voting power tops 50%
Diamond Infraco reiterates Atlas Arteria bid terms
Diamond Infraco 1 Pty Ltd, a wholly owned subsidiary of IFM Global Infrastructure Fund, has issued a Ninth Supplementary Bidder’s Statement dated 22 June 2026 reaffirming its takeover offer for Atlas Arteria. The bidder is offering A$5.10 in cash per Atlas Arteria security and has described this price as its “BEST AND FINAL” offer. The statement supplements earlier bidder documentation and confirms that no higher price will be offered under the current bid terms.
The offer is unconditional, meaning it is not subject to additional conditions being met. The A$5.10 price is inclusive of distributions, giving securityholders clarity on the total cash value available under the bid. By confirming the “best and final” status of the offer, Diamond Infraco is seeking to provide a definitive reference point for investors assessing their options.
Rising stake and closing timetable
As of 22 June 2026, IFM Global Infrastructure Fund’s securityholding in Atlas Arteria had increased to more than 40%. This rising stake indicates that a significant portion of Atlas Arteria securities has already been acquired under or in connection with the offer. The bidder highlighted this ownership level in the supplementary statement as part of its update to the market.
The offer period is scheduled to close at 7:00 pm Sydney time on 25 June 2026. Diamond Infraco stated that it will not extend this closing date unless its voting power in Atlas Arteria exceeds 50%. If that threshold is reached, the Corporations Act requires that the offer be automatically extended for a further 14 days, giving remaining securityholders more time to decide whether to participate.
Implications for Atlas Arteria securityholders
In its statement, Diamond Infraco urged Atlas Arteria securityholders to act before the scheduled closing time. Securityholders were encouraged either to accept the A$5.10 cash offer, providing a cash‑certain outcome, or to sell their securities on‑market if they prefer that route. The bidder’s messaging emphasized that, absent the 50% voting power trigger, the current timetable represents the final opportunity to participate in the offer.
The combination of an unconditional structure, a declared “best and final” price, and a fixed closing date creates a defined decision window for investors. The more than 40% holding reported as of 22 June 2026, together with the potential for an automatic 14‑day extension if voting power exceeds 50%, frames the coming days as a key period in the progression of the Atlas Arteria takeover proposal.
Key Takeaways
- 01The A$5.10 per security offer is unconditional and has been explicitly labelled “best and final,” signaling no higher bid under current terms.
- 02IFM’s stake above 40% and the 50% voting power threshold are central to whether the offer period will be extended beyond 25 June 2026.
- 03Securityholders face a defined timeline, with a choice between accepting the cash offer for certainty or selling on‑market before the current closing date.