Dun & Bradstreet (NYSE:DNB) needs a new Chief Executive Officer.

On Friday, the self-proclaimed "world's leading source of commercial information and insight on businesses," announced that Chairman and CEO Sara Mathew plans to retire by May 2014. Planning ahead, D&B's board of directors has retained the services of executive recruiting firm Spencer Stuart to help find a replacement.

Wishing Mathew well on her departure, D&B Lead Director thanked the departing CEO "for her strategic vision, leadership and dedication over her 12-year career with the company."

Other shareholders may feel less charitable. Since Mathew took over D&B at the beginning of January 2010, the company's shares have gained less than 5% in value, underperforming the S&P 500 by nearly 40 percentage points.

Upon news of her retirement being released, Dun & Bradstreet shares gained 1.1%, to close at $90.00.