Walton Comer disclosed a 31.7% stake in RTB Digital, Inc.’s common stock. He reported the position on Jun. 26, 2026, after RTB Digital completed its merger on May 12, 2026 and his notes converted on May 13, 2026. The move is notable because Comer serves as Chairman and director, and many insiders agreed to a 12‑month lock‑up with a later phased release.
Investor Intent
Comer built the position through RTB Digital’s merger and a subsequent conversion of his notes. He and other major holders agreed to “lock up the common stock … for 12 months, with a dribble out for an additional nine months,” which limits near‑term sales.
Comer says he may “acquire additional securities … or dispose of all or a portion” of his holdings over time. As Chairman and a board member, he can influence corporate actions, while any trading will follow RTB Digital’s insider trading policy.
Investor's Background
Walton Comer is an American investor and the Chairman and a member of the Board of Directors of RTB Digital, Inc. He holds RTB Digital shares directly and through entities he controls, including Comer Trading, LLC and Media Innovation Fund I LLC. Comer invests through private vehicles and focuses on scaling growth-oriented technology businesses.
Original SEC Filing:
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