In 2000, A Group Of Parents From Silicon Valley Asked:

“WHAT HAPPENED?” WHAT HAPPENED
TO THE AMERICAN PUBLIC HIGH SCHOOL?
AND WHAT CAN WE DO TO FIX IT?

WHO WE ARE • Board of Directors

Click on the titles below to open the detail list.

California Board of Directors

Robert J. Oster
Chairman of the Board

A private venture investor since 1987, Mr. Oster has worked with both institutional and other private investors in all phases of venture investing. Prior to venture investing, he worked as a professional economist and in several high-level finance positions, the last being Vice President of Finance and Administration for Oracle Corporation, where he spearheaded Oracle's initial public offering. In addition to chairing the SPS Board, Mr. Oster is Vice-Chairman of the Board and Chairman of the Nominating Committee of the Board of Overseers of the Hoover Institution of Stanford University. He received his BA in economics with honors from Occidental College and an MA and PhD in economics from the University of California at Berkeley.

Diego Arambula

Arambula was a member of Summit’s faculty for over a decade, before shifting his focus towards creating transformative change in his hometown of Fresno, CA. He joined Summit Preparatory Charter High School as a social science teacher at the beginning of its third year of operation and taught for six years. After stepping out of the classroom, Arambula helped launch Summit’s first high school that integrated a blended learning model, Summit Public School: Rainier, in East San Jose. After a year as the founding Executive Director of Rainier, he moved into the role of Chief Growth & Innovation Officer, helping to expand Summit schools and infuse innovation throughout the organization. Prior to coming to Summit Public Schools, Arambula served as Communications Director for Congressman Cal Dooley, after serving as Deputy Campaign Manager. He holds a BA in Government, with honors from Harvard University and a MA in Education from Stanford University.

Steven Humphreys

Mr. Humphreys has served as CEO or President of four high technology companies, some of which he grew from early-stage. Most recently he served as CEO of Kleer Semiconductor Corporation, growing its revenues more than 10 times in 18 months. He began his career at General Electric Company where he worked in a variety of manufacturing and information technology positions. In addition to serving on the board of Summit Public Schools, he is a trustee of the Portola Valley School District, Chairman of the Board of Organ-I AB and Organ-I, Inc., and a member of the Board of Directors of Identive Group, a publicly traded information security company. Mr. Humphreys received a BS from Yale University and an MS and MBA from Stanford University.

Diane Tavenner

Diane Tavenner is the Founder and CEO of Summit Public Schools (SPS), a leading charter management organization serving California and Washington State. Summit’s graduates are completing four-year college degrees at twice the national average. Newsweek and US News & World Report have ranked Summit among the top public schools in the nation. In partnership with Facebook, Summit is currently working to scale personalized learning by making its Personalized Learning Platform (PLP) available to schools across the country for free through the Summit Basecamp program.

Diane serves as the Board Chair of the California Charter Schools Association (CCSA) representing the majority of California’s 1,300+ charter schools. Diane also serves on the board of Transcend, The Primary School and the Carnegie Foundation for the Advancement of Teaching and Learning. Diane is a member of the Spring 2013 cohort of the Pahara-Aspen Education Fellowship, a leadership program within the Aspen Institute and a fellow in the Broad Academy.

Prior to Summit, Diane was a public school teacher, administrator and leader in traditional urban and suburban public schools throughout California. She holds a bachelor’s degree in psychology and sociology from the University of Southern California and a master’s degree in administration and policy analysis from Stanford University.

Andy Thompson

Mr. Thompson is President, Chief Executive Officer and co-founder of Proteus Digital Health. He is a veteran of Silicon Valley bio-medical startups, formerly serving as President, Chief Executive Officer and co-founder of FemRx and Chief Financial Officer of CardioRhythm. As a consultant and venture capital investor he contributed to several successful healthcare companies including Cell Genesys, Cytotherapeutics, Northstar Neuroscience and QRx Pharmaceuticals. He holds an M.A. in engineering from Cambridge University and was a United Kingdom National Engineering Scholar from 1982 to 1985. He also holds an M.A. in education and an M.B.A. from Stanford University. Mr. Thompson was a founding board member and Foundation President of Summit Preparatory Charter High School.

Blake Warner

Mr. Warner is a Founder and Managing Partner of Silicon Valley Partners LLC, a firm that provides strategic merger and acquisition advisory services focused on the growth sectors of the digital economy. Prior to this, he spent ten years at Thomas Weisel Partners LLC, where he provided investment banking services for the software, media, and communications sectors. In addition to serving on the SPS Board, he is currently the Chairman of the Governance Council of Everest Public High School, providing oversight as well as helping set strategic goals and operational objectives. Mr. Warner received his BA from the University of California, Santa Barbara, and his MBA from the University of Southern California.

Meg Whitman

Ms. Whitman is one of the most highly regarded businesswomen in the United States; she has also been involved in state and national politics, most recently having run for the office of Governor of California. From 1998-2008, she served as CEO of eBay, growing the iconic Silicon Valley company from $4 million to $8 billion in revenues. Before eBay, she worked as a high level executive at several other well-known companies including Stride Rite, Hasbro, and the Walt Disney Company. She was inducted into the U.S. Business Hall of Fame in 2008 and more than once was named one of the "Top Five Most Powerful Women in Business" by Fortune Magazine. Ms. Whitman is currently a member of the Boards of Directors of Hewlett-Packard, Procter & Gamble, Teach for America, SIEPR and Zipcar. She received her BA from Princeton University and her MBA from Harvard Business School.

Deanna Sands

Deanna Sands​ career spans many roles in education, as a teacher, scholar, and leader. She is deeply dedicated to diversity and inclusive education, and has devoted much of her career to enhancing educational opportunities for people with disabilities. In her leadership roles, she has worked closely with community partners, enhanced faculty mentorship initiatives, forged ongoing partnerships with school districts and led the school's doctoral faculty through the development of a new Doctorate of Education program in Leadership for Educational Equity . Ms Sands holds an Ed.D., Special Education Research and Administration from the University of Alabama and an M.A., Special Education, University of Michigan

Washington Board of Directors

Amy Liu

Amy Liu joins from a professional background spanning external and industry relations, advocacy, K-12 school district, grant management, and consulting. Ms. Liu is currently at Microsoft Philanthropies and holds a JD from University of Michigan Law School, as well as a B.A. in Political Science. She lives in Seattle.

Deanna Sands

Deanna Sands​ career spans many roles in education, as a teacher, scholar, and leader. She is deeply dedicated to diversity and inclusive education, and has devoted much of her career to enhancing educational opportunities for people with disabilities. In her leadership roles, she has worked closely with community partners, enhanced faculty mentorship initiatives, forged ongoing partnerships with school districts and led the school's doctoral faculty through the development of a new Doctorate of Education program in Leadership for Educational Equity . Ms Sands holds an Ed.D., Special Education Research and Administration from the University of Alabama and an M.A., Special Education, University of Michigan.

Stefan Weitz

Mr. Weitz has an extensive background in technology and business. Mr. Weitz joined Microsoft in 2002, leading diverse projects across strategy, education partnerships, and engineering. He has served on advisory boards for many startups, ranging from biometrics to advertising to virtualization. Mr. Weitz is currently the CPO of Radial and holds an M.A. in Political Science and Physics from Gonzaga University. He lives in Seattle.

Shirline Wilson

Shirline Wilson brings a focus on leadership development to our board. Ms. Wilson has spent 20 years working in Finance, IT and Business Excellence through leadership roles at The Cobalt Group, Microsoft and Cypress Consulting. Shirline’s accomplishments include leading major program and organizational change efforts, improving processes and systems, managing risk, and developing team capacity. Ms. Wilson is an alum of Antioch University. She is serving as the Interim State Director for Democrats for Education Reform WA and is parent of three great kids including one who attends Rainier Prep, a charter middle school. She lives in Seattle.

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