Agentic/AI-agent trend sweeps adtech with new entrants and platform moves

Concord raises $3M seed for agentic execution layer; Hoox launches autonomous AI CMO; Marketer.com claims $250M+ managed spend; Mobian builds agentic ad infrastructure. StackAdapt launches Ivy Studio; TikTok launches Agentic Hub and MCP marketplace. Google's Buyer Direct threatens agentic direct-sold solutions. Trend is accelerating with multiple new startups and platform integrations. First-party data emerges as critical foundation for AI agents.