Major Facebook buyers, together with public pension finances and state officers, are pushing for Mark Zuckerberg’s ouster as chairman of the company’s board. From a file: The proposal is in large part symbolic, since Zuckerberg holds absolute regulate of the board. But it comes at a troublesome time for Facebook, as security breaches plague the corporate and spur questions round company oversight. “We need Facebook’s insular boardroom to make a serious commitment to addressing real risks — reputational, regulatory, and the risk to our democracy — that impact the company, its share owners, and ultimately the hard-earned pensions of thousands of New York City workers,” New York City Comptroller Scott Stringer stated in a commentary to CNBC. Stringer joined a prior movement by way of Trillium Asset Management in calling for Zuckerberg to step down.