Nexxen International Ltd.

Nexxen International Ltd. (the “Company”) hereby furnishes, as Exhibit 99.1, a supplemental proxy statement (the “Supplemental Proxy Statement”) with respect to the Company’s Annual General Meeting of Shareholders (the “AGM”) to be held at 3:30 p.m. (Israel time) on December 30, 2025, at the Company’s offices at 82 Yigal Alon Street, Tel Aviv 6789124, Israel.

In response to input received from Company shareholders, the Board of Directors of the Company (the “Board”) and approved certain actions with respect to the composition of the Board and the Company’s compensation arrangements described in Proposals 1, 3 and 4, as detailed in the Supplemental Proxy Statement, to better align the terms of such proposals with the interests of the Company’s shareholders.

The Company will count towards the tally of votes for the AGM all proxy cards or voting instruction forms that have already been properly completed and submitted. Accordingly, a shareholder who already submitted a proxy card or voting instruction form is not required to resubmit such form unless such shareholder elects to resubmit a new proxy card or voting instruction form, in which case the new submission will replace the original vote.