The biggest U.S. public pension fund, CalPERS, has appointed George Diehr as chairman of its investment committee, Reuters reports. The $206 billion system, which also has backed a plan to require its investment partners to disclose placement agent fees under California administrative laws, re-elected Diehr as vice president in February.

CalPERS’ investment committee approved a staff memo to let shareholders block uncontested candidates from being elected to company boards. The committee also selected Rogerscasey and Wilshire Associates as finalists to be CalPERS’ primary consultants.

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