Procter & Gamble said its $4.2 billion acquisition of German firm Merck's consumer health division was about allowing it to respond to the changing demands of an aging world.
Nearly a quarter (22%) of all marcomms M&A deals involved private-equity funds — double the 11% seen in the last two quarters of 2017.
WPP's joint chief operating officers Mark Read and Andrew Scott have said they do not believe a break-up of the ad group makes sense.
Seifert said feedback from clients has been positive.
The healthcare marketing group made another major acquisition in the country last month.
Omnicom's healthcare revenue was up 2.7% in Q1
Campaign looks back at some of Sir Martin Sorrell's musings, barbs and pearls of wisdom in recent times.
The firm hired five senior staff in the past month.
As Sir Martin clears his desk, PRWeek has collected nine thoughts from the worlds of PR, journalism and agency life on the man, his skills, his temperament, and his future.
Martin Sorrell's resignation as chief executive of WPP could lead to a breakup of the company and spark other major changes.
John Tylee examines how a man who never ran an agency rose to become such a dominant force.
Martin Sorrell has stood down as chief executive of WPP, the company has announced.
WPP's board of directors is set to meet as it awaits the outcome of an investigation into the personal conduct of CEO Martin Sorrell.
She is relocating to Switzerland for the role.
U.S. deals through the end of March increased 366% compared with last year.