Jeffrey Terry Green

Jeff Green is the most identifiable founder-CEO in independent ad tech, and arguably its loudest public voice. Since taking The Trade Desk public in September 2016, he has used every keynote, earnings call, and podcast appearance to make the same argument: that the open internet, anchored by independent supply, identity standards like Unified ID 2.0, and demand-side platforms not owned by media sellers, is structurally healthier than a market dominated by Google, Meta, and Amazon’s walled gardens.

That posture is being tested in 2026. The Trade Desk reported its slowest annual revenue growth as a public company for FY 2025, MoffettNathanson cut its price target on Feb. 26, 2026 calling the deceleration structural, Publicis and Omnicom are auditing OpenPath fees, and three senior executives — including the on-record architect of the Feb. 24 Ventura Ecosystem launch — exited in early April. Green’s response, per his Form 4 filing, was to spend roughly $148 million of personal capital on TTD shares between March 2 and March 4 at prices between $23.49 and $25.08. The next public read is the May 7, 2026 Q1 earnings call.

Green’s career arc — Microsoft MSN, AdECN, Microsoft again post-acquisition, then The Trade Desk — has consistently put him at exchange-and-DSP infrastructure rather than at media sellers. That positioning underpins his open-internet rhetoric and gives him standing on the standards side of the industry, where Unified ID 2.0 is now stewarded by Prebid.org.