Last mentioned: Feb 24, 2026
Court Filings Released
New court documents provide specific evidence of how WPP manages spend with industry middlemen, as reported by Digiday.
Foster vs. WPP Filing
Richard Foster initiates legal action against WPP, leading to the disclosure of internal programmatic margin data.
ISBA/PwC Study
A landmark study reveals that 15% of programmatic ad spend is 'unattributable,' sparking industry-wide transparency concerns.
Recent court filings in the legal dispute between WPP and former executive Richard Foster are providing rare visibility into the 'ad tech tax' paid to intermediaries. As the industry looks to AI for transparency solutions, these disclosures highlight the persistent gap between advertiser spend and publisher revenue.