It was earlier reported on how 15 senators and 36 members of the House of Representatives on Tuesday left the APC. Majority joined the PDP.
Mr Oshiomhole, who spoke with State House correspondents after meeting with President Muhammadu Buhari on Tuesday, said those who left are “mercenaries” who were in APC just to win election.
He said the governing party is “not disturbed at all” and that he is not losing sleep over the defections.
Mr Oshiomhole also said it is good that those who never believed in the APC are leaving ahead the electioneering activities because that would enable the party concentrate on its campaigns.
He described the defectors as right wing politicians who believe in the philosophy of “share the money” and did not belong to the progressives group.
He said even while they were in the APC, they constituted themselves as opposition to the governing party.