Briefing
Ackman's SPAC vehicle Pershing Square Tontine Holdings attempted to acquire a 10% stake in UMG from Vivendi, then abandoned the transaction after SEC scrutiny. That failed structure forced UMG's standalone Euronext listing, leaving Ackman a passive shareholder without the governance influence or US market access he had sought.
Vivendi spun off UMG onto Euronext Amsterdam at a valuation of roughly €33bn. The listing priced UMG at a discount to US entertainment peers, the same gap Ackman's rejected US relisting proposal was explicitly designed to close.

The CMA's requirement that Google offer publishers an opt-out from AI search summaries reinforces the negotiating leverage of large content owners. UMG, as the world's largest music rights holder, sits in an analogous position: its catalogue is an input for AI audio and search products, and the board's rejection of a below-intrinsic-value bid signals management believes AI licensing revenue streams have not yet been fully priced by the market.
People Inc.'s $18bn take-private bid for MGM, also rejected as undervaluing physical assets, follows the same pattern as the UMG rejection: boards of asset-rich entertainment and media companies are pushing back on activist or strategic bids they regard as capturing upside that belongs to long-term shareholders.
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