Edelman’s US leadership is entering another transition, with chief executive Kirsty Graham leaving the agency and executive vice chairman Matthew Harrington preparing to run its US business on an interim basis. The change puts client continuity and a permanent successor search at the centre of the independent communications firm’s next chapter.
The departure was disclosed on October 29, 2026. According to PRovoke Media, which cited internal memos from Graham and global chief executive Richard Edelman, Graham will step down from management duties on Monday while staying until the end of the quarter to help with clients and the handover. Her next professional move has not been disclosed.
Key Takeaways
- Kirsty Graham is leaving Edelman after six years, with Matthew Harrington taking the US CEO role on an interim basis.
- Harrington previously ran the US business and is currently Edelman’s executive vice chairman, according to his official biography.
- Brands working with the agency should clarify interim decision-making, account leadership and escalation contacts during the transition.
Table of contents
Jump to each section:
- What changes in Edelman’s US leadership
- Why Harrington is a continuity choice
- What clients should watch next
What changes in Edelman’s US leadership
Graham joined Edelman in 2020 after senior corporate-affairs roles at Pfizer and was appointed US CEO effective February 2024. She had previously led the firm’s global health business and its practices and sectors. The US assignment put her in charge of a core market at a time when agencies were reassessing their operating models and service mix.
The October departure is a senior succession event rather than an announced strategic reset. Edelman has identified an interim leader and a search for a permanent replacement, but it has not announced a new US structure or offered a public explanation for Graham’s next step. Treating the departure alone as evidence of a wider restructuring would go beyond the disclosed facts.
The internal communication also puts emphasis on clients. Richard Edelman wrote in a memo reported by PRovoke, “He knows our people and our business,” and expressed confidence in the interim transition. Graham will remain involved until quarter end, providing a defined period for handover rather than an abrupt end to client support.
Why Harrington is a continuity choice
Harrington is a familiar figure inside the firm. Edelman’s official biography lists him as executive vice chairman and notes his previous service as US president and global chief operating officer. That current title matters: his appointment is a return to temporary US management from a senior client-focused role, not a continuation of an incumbent global COO post.
Edelman moved Harrington into the executive vice-chairman position in 2025, expressly shifting more of his attention to major client relationships. The latest interim assignment therefore draws on both operating experience and familiarity with senior accounts.
That background reduces the need to introduce a new external executive during the immediate handover. It does not settle the longer-term question of who will permanently lead the agency’s US business or how that person will balance specialist practices, client portfolios and commercial priorities. Those decisions remain open.
This succession also arrives after earlier top-level leadership changes at Edelman. ContentGrip previously examined the firm’s leadership and AI operating-model changes. That earlier program is context for how the agency has been evolving, but there is no verified evidence that the current US departure was caused by the AI initiative.
What clients should watch next
For brands and corporate communications teams, the immediate issue is operational accountability. An interim CEO can maintain service continuity, but account executives still need clear authority over staffing, budgets, escalation and strategic decisions while the permanent search proceeds.
First, confirm the decision chain. A client should know whether the existing account lead retains responsibility for approvals and which executive handles exceptional issues during the transition.
Second, distinguish continuity from commitments. Harrington’s appointment is a useful signal of institutional knowledge; it is not a guarantee that every account, team or service line will remain unchanged. Clients should ask for specific handover arrangements rather than infer them from the leadership title.
Third, track the permanent appointment. The eventual successor’s remit, reporting lines and client responsibilities will be more revealing than speculation about Graham’s departure. Until those details are announced, the most defensible reading is that Edelman has chosen an experienced internal leader to manage the interim period.