Criteo S.A. filed a Form 8-K on October 29, 2026, disclosing the immediate resignation of board member Edmond Mesrobian and the simultaneous appointment of Jianchang Mao to fill the resulting vacancy.

Key Highlights

  • Resignation: Edmond Mesrobian notified the Board on October 28, 2026, of his decision to resign as a board member and Compensation Committee member, effective immediately.
  • No disagreement: According to the filing, Mr. Mesrobian's resignation "did not result from a disagreement with the Company or the Board on any matter relating to the Company's operations, policies, or practices."
  • New director: The Board appointed Jianchang Mao by co-optation on October 28, 2026, to fill the vacancy, effective immediately.
  • Independence confirmed: The Board determined that Mr. Mao is independent under applicable Nasdaq and SEC rules.
  • Term length: Under Luxembourg law, Mr. Mao's term lasts until the next general meeting of shareholders, expected to address the previously announced redomiciliation of Criteo from Luxembourg to the United States via a cross-border merger with Criteo Holdings, Inc.
  • Standard compensation: Mr. Mao will receive compensation under the Company's standard independent director compensation program, as described in the Annual Proxy Statement filed on Schedule 14A on May 8, 2026.
  • No special arrangements: The filing states there are no arrangements or understandings between Mr. Mao and any other persons pursuant to which he was elected, and he has not been party to any reportable transactions with the Company under Item 404(a) of Regulation S-K.

Criteo Board Restructured Ahead of Planned U.S. Redomiciliation

According to the filing, Edmond Mesrobian informed Criteo S.A.'s Board of Directors on October 28, 2026, that he would immediately step down from both the Board and its Compensation Committee. The Company, whose ordinary shares carry a nominal value of €0.025 per share and are listed on NASDAQ:CRTO, stated that the departure was not related to any dispute over operations, policies, or practices.

The Board moved the same day to fill the vacancy, appointing Jianchang Mao via co-optation. The filing describes Mr. Mao as a General Partner and Distinguished Fellow at Fellows Fund, an investment firm focused on AI-native companies. Before that role, he served as Vice President of Engineering for Google Assistant. He also spent nine years at Microsoft, most recently as Corporate Vice President and General Manager of Microsoft Advertising Product and Engineering, and previously held roles at Yahoo! as Vice President of Advertising Sciences, at Verity, and as a researcher at IBM's Almaden Research Center. The filing states he is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE) and holds a Ph.D. in computer science from Michigan State University, along with master's and bachelor's degrees from East China Normal University.

The filing notes that Mr. Mao's board term, governed by Luxembourg law, is expected to run until the general meeting of shareholders called to vote on the Company's planned redomiciliation to the United States through a cross-border merger with Criteo Holdings, Inc., a Delaware corporation and wholly owned subsidiary of Criteo S.A. That merger is described in a Registration Statement on Form S-4 (Reg. No. 333-298014) filed by Criteo Holdings, Inc. with the SEC on August 5, 2026. The filing also states that Mr. Mao is expected to be appointed to serve on the Board of Directors of Criteo Holdings, Inc. at the effective time of that merger. The filing contains forward-looking statements regarding the merger and Mr. Mao's continued service, which the Company notes are subject to risks and uncertainties as described in its cautionary language.

What Was Disclosed

The 8-K reports the immediate resignation of Edmond Mesrobian from Criteo's Board and Compensation Committee and the co-optation appointment of Jianchang Mao to the Board, both effective October 28, 2026, with details on Mr. Mao's background, independence, compensation, and anticipated role in a pending merger transaction.