Six Apart‘s Barak Berkowitz is stepping down and turning over his post as Chief Executive Officer to Chris Alden, after leading the company for almost four years.

Chris Alden, who headed the company’s software unit after its acquisition of Rojo Networks, has been with the company for a little over a year. He was the former CEO (and co-founder) of Rojo.

San Francisco-based Six Apart is widely known for its TypePad content management software, now catering to over 40 million users a month, with about 150 employees.

“As we’ve brought the business to scale, the board and I have been talking about my desire to take on a smaller role,” Berkowitz said in a statement. “With the company so stable and on a great growth track, it’s a natural time to make a transition.”

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