NEW YORK — Omnicom Group, which owns numerous PR firms including FleishmanHillard, Ketchum and Porter Novelli, has reported organic PR revenues were down 0.9% in Q1 2016.

PR revenues totaled $318.8m in Q1 2016 — a period during which the holding company underwent a major shakeup of its PR agencies. In February, Omnicom named former Porter Novelli CEO Karen van Bergen to lead a newly-formed PR unit that houses its key PR agencies.

A spokesperson for Omnicom’s largest PR agency FleishmanHillard said the firm “incurred a slight revenue decline due to nonrecurring work during Q1 2016, but we enjoyed significant operational improvement during the quarter.”

(In somewhat related news, FleishmanHillard global CMO Stephanie Marchesi has parted ways with the firm.)

Omnicom's PR unit was, again, the worst performer among its four divisions during 4Q 2015, lagging advertising (+7.9%), CRM (-.7%) and specialty communications (+2.2%). Overall, the group posted a 0.9% increase in worldwide revenue for Q1 2016 to $3.5b.