Ralph Whitworth, who has been chairman of Hewlett-Packard’s(s hpq) board for just over a year, is resigning to focus on his health, according to a company statement. The resignation takes effect July 16.
Whitworth, a long-time investor activist and a major shareholder of HP, has been on HP’s board since 2011 and was named interim chairman in April 2013, succeeding Ray Lane, after a particularly rocky period in HP’s history.
In the statement, HP CEO Meg Whitman said:
“Ralph has been a friend and close advisor to me, the HP leadership team and every member of the board for nearly three years… He has been a wonderful contributor to our efforts to turn HP around. Ralph’s passion and incredible mind for business will be deeply missed by all of us. We wish Ralph and his family the very best.”
Whitworth is also taking a leave of absence from Relational Investors, the company he founded. He has also been a board member of Genzyme(s genz), Sovereign Bancorp(s sov) and Sprint Nextel(s s), according to his HP bio.