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Michael Wiesner, of counsel in the San Francisco office, is a member of the Compensation and Benefits Group. Michael advises public and private companies and individual executives on compensation and benefits matters in the context of ongoing business operations and mergers and acquisitions, with an emphasis on private equity-sponsored acquisitions and divestitures.
Michael’s practice covers executive agreements, cash and equity-based incentive programs, change in control and severance plans, 409A and other deferred compensation issues and 280G “golden parachute” compliance, as well as compensation and benefits structuring in the context of mergers and acquisitions.
Michael authors the chapter “Executive Compensation and Benefits Issues for Start-ups and Emerging Companies” within Bloomberg BNA’s Benefits Practice Resource Center treatise.
From 2005 to 2010, Michael was a statistician with a Stanford University School of Medicine research group.
David Williams, CIPP/US, CIPM is an eDiscovery and Privacy lawyer in the San Francisco office of Orrick, Herrington & Sutcliffe. David consults with Orrick attorneys and clients on eDiscovery strategy and data privacy issues.
David has experience providing insight and guidance on U.S. and E.U. privacy laws. David works primarily with the eDiscovery and Cyber, Privacy, & Data Innovation groups advising on data privacy issues and eDiscovery strategy. Additionally, David has experience evaluating the applicability of European data protection requirements, including the General Data Protection Regulation (GDPR), to U.S. companies.
Before joining Orrick, David was a Privacy Law Clerk at LinkedIn, where he worked with the legal team to develop policies and procedures in preparation for the enforcement date of the European General Data Protection Regulation (GDPR). David also addressed privacy and data management questions for LinkedIn services and managed data processing and handling issues for new products.
Additionally, David has an active pro bono practice, which includes providing data management guidance to non-profit organizations.
Ariel Winawer is an associate in Orrick's San Francisco office and a member of the General Litigation group.
Ariel represents companies and individuals in a broad range of complex civil litigation and white collar criminal matters.
George Wolf, a partner in the San Francisco office, is a member of the Tax Group and the Corporate Tax Group. George has handled nearly all aspects of federal and state tax planning, specializing in financial transactions, synthetic securities, structured and securitized financings, tax exempt bonds and foreign financing transactions.
George is also a long-time member of the Public Finance Tax Group, specializing in public power and health care, and is the leading national authority on municipal derivative products. He is principal tax advisor to several major municipal electric utilities and nonprofit healthcare organizations. He also has extensive experience in working with leading banks in creating new financial products, including secondary market synthetic instruments, contingent payment debt instruments, financing strategies for energy, as well as defending the taxation of financial transactions before taxing authorities.
George also has substantial experience defending the tax integrity of financing arrangements in particular as well as tax litigation in general.
Sean Yates is a Public Finance lawyer based in San Francisco focusing on transportation and affordable housing.
Sean serves as bond counsel and disclosure counsel on a variety of public finance transactions, including general obligation financings, sales tax revenue financings, and lease revenue financings for public agencies. Sean's experience includes counseling large public transportation agencies, and assisting in the financing of affordable housing and charter schools throughout California.
Sean earned his J.D. from the University of California, Davis in 2018, and his B.A. from the University of California, Santa Barbara in 2013. Prior to joining Orrick, Sean worked as a mortgage analyst with JVM Lending, where he assisted California homebuyers with purchase money loans and refinances.
Silicon Valley; San Francisco
Silicon Valley; San Francisco
Harold Yu is a partner in Orrick's Technology Companies Group. Harold is based in Orrick's Silicon Valley and San Francisco offices.
Harold advises technology companies and has significant experience with venture capital financings, debt financings, public offerings, mergers & acquisitions and technology transactions. He is deeply interested in technology. Prior to law school, Harold was a software engineer at Oracle Corporation and an intern at NASA Ames Research Center.
Arshak's practice focuses on acquisitions, development and financing of projects in the renewable energy sector.
Arshak’s experience includes work on commercial debt financing transactions, specifically involving lenders establishing credit facilities with companies. He also provided consulting services before law school to electric and gas utilities on state and federal regulations related to energy efficiency.
Prior to joining Orrick, Arshak was an intern at both the Sierra Club Environmental Law Program and the California Public Utilities Commission.
Erin is an associate in the White Collar, Investigations, Securities Litigation & Compliance group in Orrick's San Francisco office.
As Orrick’s Chief Client Officer, Catherine Zinn oversees Orrick’s sector focused business development, client satisfaction, alumni program and strategic events functions, globally.
Catherine and her team of experienced Managing Directors and other professional staff help ensure the firm is a steward of our clients' businesses. The team supports Orrick’s commitment to each client’s cause by listening to their views and concerns, responding to their needs, and articulating a shared understanding of priorities. Among other responsibilities, the team meets with clients to solicit their feedback and work with the firm’s relationship partners and teams to deliver value added services – and real innovation.
Catherine spearheads the firm’s strategic partnerships with thought leaders, community organizations, and other influencers - designed to add value for our clients and enhance the firm’s social impact. Additionally, Catherine commits a significant portion of her time connecting high profile executives, alumni, and other friends of the firm to jobs and to public company board seats, with an emphasis on diversity.
Previously, Catherine held senior client relations roles at DLA Piper and JAMS. With 20+ years of experience doing professional services sales, Catherine has built a reputation as a “super-connector” throughout the legal, tech, and financial services industries. Catherine’s passion in life is coaching and helping other people achieve their goals.
Catherine is a leader in the community:
Catherine has been recognized as a Woman of Influence by the Silicon Valley Business Journal and as a Woman of Achievement by Legal Momentum.
In January of 2015 she was inducted into the International Women’s Forum and in 2016 joined American Leadership Forum’s roster of senior fellows along with other top c-level executives and community leaders.
Catherine is a founding member of the National Finance Committee for Kamala Harris’ 2020 presidential campaign. She has also served on the 2011 Barack Obama National Finance Committee, and as the National Chair of Lawyers for Obama, and Hillary Clinton’s 2008 National Finance Committee.
Catherine was a three-sport varsity athlete in college, tennis instructor, personal trainer, and head coach of a top ranked high-school tennis team in Washington, DC. Catherine is a graduate of Hamilton College with a degree in Economics.