They included $15.5m of costs related to the transaction with Silver Lake and ValueAct, and $5.5m predominantly related to the write-off of certain long-term assets related to an amended contract with an IT outsourcing client.
First quarter revenues were $338.2m, a year-on-year increase of 0.4%.
The $3bn takeover of the company by Silver Lake and ValueAct is on track after last the two-month period for alternative bidders to top their recommended offer expired.
Charles Morgan, company leader of Acxiom and chairman of the board, said: "We remain focused on operating results while we advance the acquisition process with Silver Lake and ValueAct Capital."