Peter Mixon has more than twenty years of experience advising public pension plans and other institutional investors on operations, strategy, and dispute resolution.  As a member of Nossaman’s Public Pensions & Investment Group, he concentrates on trust law, investments, benefits, and funding issues.  Peter has extensive experience advising public boards and committees on fiduciary and governance issues. He is a well-known speaker on public pensions and has testified in state court as an expert on public pension fiduciary standards.

Before joining Nossaman, Peter served as General Counsel for the California Public Employees’ Retirement System (CalPERS) for 11 years.  In this position, he provided counsel to the Board and Chief Executive Officer on all aspects of investments, operations, strategy, and governance.  He advised the Board and staff on fiduciary aspects of plan funding, asset and liability valuation, and collection rights and litigation, as well as on all types of investment transactions, including private equity, real estate, venture capital, and hedge funds.  He also oversaw an outside review of placement agent activities of former officials, resulting in recovery of $215 million in investment fees paid by the system.  As part of this review, Peter helped draft California legislation regulating placement agent disclosure requirements and fee limits.  He also provided legal advice on the Board’s Corporate Governance Program, effectively guiding engagement on majority voting, proxy access, and other governance issues.  He advised the staff on public disclosure laws, including legal rights and responsibilities, and he supervised the defense of several lawsuits brought under the California Public Records Act as well as a comprehensive Board Governance Project, substantially improving the effectiveness, efficiency, and accountability of the Board and staff.  Finally, Peter conducted over a dozen legal education workshops for board members, executives, and constituent groups.



  • Advised state pension plan on fiduciary, funding and benefits issues arising from proposed merger with another plan.
  • Advised municipal pension plan on fiduciary and related issues arising from proposed divestment of certain plan assets.
  • Advised municipal pension plan on conflict of interest requirements for investment managers.
  • Advised state plan on fiduciary duties in connection with discount rate and other funding decisions
  • Advised municipal pension plan on comprehensive governance project.
  • Advised state pension plan on constitutional issues arising from proposed legislative changes to appropriations for investment and related expenses.
  • Advised municipal plan on insider trading prohibitions. 



Speaking Engagements


Community & Professional

National Association of Public Pension Plan Attorneys, Member of the Executive Board  (2009-2013)

New York Stock Exchange Commission on Corporate Governance, Chair, Investors
Subcommittee (2009-2010)



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