Paul Achleitner is due to retire next May after 10 difficult years in office that saw two changes of chief executive, billions of euros of losses and huge fines
Ms McGuinness will launch a public consultation after the summer looking at company audit committees, the outside auditors who sign off on financial figures companies publish and the regulators who supervise them.
It will examine whether responsibilities of company board members to provide accurate financial reports are defined clearly enough.
The consultation will reflect on how to improve the role of company audit committees and whether they should be mandatory.
Ms McGuinness said supervisors for auditors across the EU had found problems with internal quality control systems. They also found a lack of or inappropriate monitoring of high-risk audited entities and insufficient audit evidence and documentation, she added.
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The US securities regulator is considering new guidance to rein in earnings growth projections made by listed blank-cheque companies, and clarify when they qualify for certain legal protections, according to sources.
The previously unreported measures being weighed by staff at the Securities and Exchange Commission (SEC) would escalate its crackdown on the deal frenzy in special purpose acquisition companies, or SPACs, which it worries is putting investors at risk.
The SPAC market had already started to lose steam after the SEC earlier this month suggested warrants issued by SPACs should be accounted for as liabilities instead of equity instruments, and the potential new guidance could compound that slowdown.