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MoFo Advises SoftBank on Investment in OpenAI – the Largest Venture Investment of All Time

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Morrison Foerster advised SoftBank Group Corp. (“SoftBank”) as lead investor in a new financing round in OpenAI – the world’s...

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Morrison Foerster advised SoftBank Group Corp. (“SoftBank”) as lead investor in a new financing round in OpenAI – the world’s leading artificial intelligence research and development company and maker of well-known ChatGPT application. The round size is up to $40 billion, which makes: <ol><li>This the largest investment round by a venture-backed startup in history;</li><li>This the largest single venture investment by an investor in a startup in history; and</li><li>OpenAI one of the most highly valued venture-backed startups in the world. </li></ol>The investment may be up to $40 billion, subject to the satisfaction of various conditions, with the first $10 billion expected to be invested in April. This investment, as well as SoftBank’s previous investments in OpenAI (which MoFo also advised on), is aligned with SoftBank’s broader strategic vision and commitment to driving innovation in AI.MoFo’s global deal team was led by Tokyo office managing partner and head of the Tokyo M+A team Ken Siegel alongside the Firm’s chairman Eric McCrath and Chris McKinnon (both San Francisco corporate partners). The global deal team included corporate partners Joe Sulzbach (New York) and Suz Mac Cormac (San Francisco), and associates across the firm’s New York, San Francisco Bay Area and Tokyo offices.See press releases <a href="https://group.softbank/en/news/press/20250401" target="_blank">here</a> and <a href="https://openai.com/index/march-funding-updates/" target="_blank">here</a>.

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Ken Siegel is the managing partner of Morrison Foerster’s Tokyo oﬃce and the head of the oﬃce’s 50-attorney M&A team. Ken’s practice focuses on the representation of high-technology companies in acquisitions, joint ventures, and strategic alliances.Ken has been consistently ranked as one of the leading U.S. attorneys in Japan. Among other things, he is the only attorney rated as a “Star Individual” for M&A in Japan (the level above Band 1) by Chambers Global, having been ranked at this level for more than a dozen years (2011–2024 editions). According to Chambers Asia-Paciﬁc, Ken is “commercial and pragmatic, an incredible M&A attorney” who “deserves tremendous credit for his M&A practice” and has “outstanding acumen, experience and leadership.”In 2022, Ken was recognized by the Financial Times – receiving their Innovative Lawyers Award, as one of the most innovative attorneys in the Asia Pacific region.  He has also been recognized multiple times as in the American Lawyer – including as “Dealmaker of the Week” for his work on Hitachi’s $5 billion sale of its hard disk-drive business to Western Digital as well as for representing SoftBank in its $21.6 billion acquisition of Sprint, a transaction that was named the Global M&A Deal of the Year by The American Lawyer.Ken received his B.A. magna cum laude from Amherst College. He studied Japanese language at Stanford University’s Inter-University Center for Japanese Language in Tokyo and at the Johns Hopkins University’s School of Advanced International Studies (SAIS), receiving a graduate degree in International Aﬀairs. He received his J.D. degree from the University of Chicago Law School.<h4>Select Rankings</h4>Ken’s recent notable awards include:<ul><li>Most Innovative Legal Practitioner in Asia-Pacific (Financial Times Innovative Lawyers Award 2022)</li></ul><ul dir="ltr"><li>Star Individual for Japan: Corporate/M&A (Chambers Global 2024)</li><li dir="ltr">Star Individual for Japan: Corporate/M&A (Chambers Asia-Pacific 2024)</li><li>Hall of Fame for Japan: Corporate and M&A (The Legal 500 Asia Pacific 2024)</li><li>Market Leader for Japan: M&A (IFLR1000 2024)</li><li>Corporate, M&A Law, Private Equity, Private Funds and Venture Capital Law [The Best Lawyers in Japan (Recognized since 2009)]</li><li>Foreign Lawyer of the Year (Asian Legal Business (ALB) Japan Law Awards 2018)</li><li>Tokyo Managing Partner of the Year (Asian Legal Business (ALB) Japan Law Awards 2017)</li></ul>

Kenneth A. Siegel

Partner

Eric T. McCrath is the Chair of Morrison Foerster.Eric has been a trusted advisor on hundreds of public and private M&A, private equity, and financing transactions over the course of his career. As part of his market-leading M&A practice, he counsels strategic acquirers and targets in a variety of industries, including technology (semiconductors, software, AR/VR, FinTech, AI), healthcare, consumer products, financial institutions, media, gaming, and transportation. He represents leading U.S. and global companies and regularly advises on complex cross–border transactions.Eric is regularly recognized by leading publications, including Legal 500 US and Chambers USA, with client sources describing him as “greatly skilled at advising on the most complex and high–profile M&A transactions,” and noting that he “combines strong technical skills and a flair for complexity with commercial awareness, pragmatism and sound judgment.”Eric joined Morrison Foerster as a partner in 2007. He has held multiple leadership roles at the firm prior to being elected chair in June 2022. He has been a member of Morrison Foerster’s Executive Committee since 2016, the Compensation Committee since 2019, has served as Global Co-Chair of the firm’s Corporate Department of over 400 lawyers since 2018, and has also held a number of practice leadership roles.A diverse lawyer of Asian heritage, Eric is also one of the longest-standing members of Morrison Foerster’s Diversity Strategy Committee, having served since 2010.

Eric McCrath

Chair

Chris represents emerging companies, venture capital investors, and private equity firms in corporate and securities matters, including venture capital, growth equity and private equity investments, mergers and acquisitions, joint ventures, divestitures, restructurings, investment fund transactions, and startup counseling.Chris specializes in transactions involving high-profile, venture-backed companies in the technology industry (AI, Fintech, AR/VR, semiconductors, software). For private equity sponsors and strategic clients, he advises on complex investments for minority and controlling positions, buyouts, and portfolio company management. For entrepreneurs, he advises fast-growing, emerging companies throughout their life cycle, ranging from formation, capital raising, and corporate structuring and governance through exit.Before rejoining Morrison Foerster, Chris advised a leading global investment firm, as associate general counsel and legal director, on domestic and cross-border investment and M&A transactions in the technology industry. Leveraging that experience, Chris provides clients with creative, business-forward, and solutions-oriented advice.As a distinguished advisor, Chris has been recognized as a Rising Star by leading industry publications, including Venture Capital Journal. He is an active member of the ABA’s Private Equity and Venture Capital Committee and frequent author and speaker on investment- and M&A-related topics and trends. While at New York University School of Law, Chris was a Lederman Fellow in Law & Economics and on the executive board of the NYU Journal of Law & Business. He received his undergraduate degree in business economics from the University of California, Santa Barbara.

Christopher McKinnon

Joe Sulzbach is a partner in the Transactions Department, focusing on mergers and acquisitions and private equity. Joe has represented numerous public and private entities in a variety of transactions, including domestic and cross-border merger and acquisition transactions, private equity transactions, joint ventures, and corporate governance matters. He has advised a broad range of clients across industries, including technology, media, and telecom (TMT), industrial, chemicals, consumer goods and retail, energy, healthcare and pharmaceuticals, and real estate.Joe has also represented a number of companies in engagements with activist stockholders, including in responding to Starboard Value, Carl Icahn, Elliott Management, JANA Partners, Farallon Capital Management, and VIEX Capital.In addition, Joe has represented investment banking firms and financial advisors in a variety of significant transactions, including representation of Qatalyst Partners, Evercore Partners, Greenhill, Ducera Securities, and Solomon Partners.Select examples of Joe’s experience include the following representations:<ul><li>NorthStar Healthcare Income, Inc. in its $900 million sale to an affiliate of Welltower Inc.</li><li>Cartica Acquisition Corp in its $2.75 billion business combination with Nidar Infrastructure Limited, India’s leading data center provider for artificial intelligence and high-performance compute services.</li><li>Centuri Holdings and parent company Southwest Gas Holdings in Centuri’s $353 million IPO and concurrent private placement.</li><li>U.S. Silica Holdings, Inc. in its $1.85 billion sale to entities affiliated with Apollo Global Management.</li><li>The rock band KISS and its co-founders Gene Simmons and Paul Stanley in the sale of substantially all rights related to KISS to Pophouse Entertainment.</li></ul><ul><li>Sekisui House, Ltd. in its $4.9 billion acquisition of M.D.C. Holdings, Inc.</li><li>Astellas Pharma Inc. in its $175 million acquisition of Propella Therapeutics, Inc.</li></ul><ul><li dir="ltr">Southwest Gas Holdings, Inc. in its adoption of a Tax-Free Spin Protection Plan.</li><li dir="ltr">Kyowa Kirin Co., Ltd. in its up to $477 million acquisition of Orchard Therapeutics plc, including CVR payment.</li><li dir="ltr">Sugar Foods Corporation in its sale to Pritzker Private Capital.</li></ul><ul><li>The News Lens Co., Ltd. in its $275 million business combination with Blue Ocean Acquisition Corporation.</li></ul><ul><li>Upland Software, Inc. in its adoption of a Tax Benefit Preservation Plan.</li></ul><ul><li>The Board of Directors and Special Committee of Toshiba in the $15.2 billion takeover of Toshiba by a consortium led by Japan Industrial Partners.</li><li>Infineon Technologies AG in the sale of its HiRel DC-DC converter business to Micross Components, Inc.</li></ul><ul><li>AgroFresh Solutions, Inc. in its $545 million going-private acquisition by Paine Schwartz Partners.</li><li>Unity Software Inc. in multiple transactions, including its all-stock $4.4 billion acquisition of ironSource and Unity’s concurrent $1 billion PIPE investment by Silver Lake and Sequoia, and in response to the related $13.6 billion unsolicited acquisition proposal from AppLovin Corporation.</li><li>Southwest Gas Holdings, Inc. in its defense against a hostile tender offer and proxy contest for board control by Carl Icahn, including adoption of a shareholder rights plan, and negotiated resolution.</li><li>Marrone Bio Innovations in its $244 million acquisition by Bioceres Crop Solutions Corp. in a stock-for-stock merger.</li><li>Paine Schwartz Partners, a global leader in sustainable food chain investing, in its new platform investment in Registrar Corp., a leading provider of supply chain compliance software and services to domestic and foreign food and beverage, medical device, pharmaceutical, and cosmetic customers.</li><li>Silver Crest Acquisition Corporation in its $1.7 billion business combination with TH International Limited (Tims China), a master franchisee and operator of Tim Hortons coffee shops in China.</li><li>Sky Harbour LLC in its $777 million business combination with Yellowstone Acquisition Company.</li><li>SoftBank Group Corp., as the largest investor in WeWork, in WeWork’s $9 billion business combination with BowX Acquisition Corp.</li><li>Leading provider of patient access and engagement platform in its sale to a publicly listed company.</li><li>ON Semiconductor Corporation in its adoption of a shareholder rights plan.</li><li>Whitestone REIT in its adoption of a shareholder rights plan.</li><li>Exantas Capital Corp. in the acquisition of its external management contract by ACRES Capital Corp. from C-III Capital Partners LLC, and $375 million financing from MassMutual and Oaktree Capital Management.</li><li>NTT Communications Corporation and Secure-24 in the acquisition of SymSoft Holding Inc. and Symmetry Holding Inc. from Symmetry Holdings, LLC, a portfolio company of Great Hill Equity Partners.</li><li>Kirin Holdings Company, Limited in its acquisition of approximately 40% of the capital stock of Thorne Holding Corp.</li><li>Rao’s Specialty Foods, Inc. in its sale to Sovos Brands, an affiliate of funds managed by Advent International.</li><li>JERA in its sale of a minority interest in Cricket Valley Energy Center to Development Bank of Japan.</li><li>JERA in the acquisition of a 43% stake in Cricket Valley Energy Center, the developer of a 1,000 MW natural gas-fired power plant located in Dover, New York.</li><li>Renesas Electronics in its $3.2 billion acquisition of Intersil Corporation.</li><li>DaVita HealthCare Partners in its acquisition of Renal Ventures Limited.</li><li>Inovalon Holdings, Inc. in its acquisition of Creehan Holding Co., Inc.</li><li>Inovalon Holdings, Inc. in its acquisition of Avalere Health, Inc.</li><li>GLP Pte. Ltd. in the acquisition of a $4.55 billion U.S. logistics portfolio from Industrial Income Trust.</li><li>JLB Group, LLC in its acquisition of Sneakz, LLC.</li><li>Futamura Chemical Co., Ltd. in its acquisition of the cellulose business of Innovia Films.</li><li>Kirin Holdings Company, Limited in its acquisition of approximately 24.5% of the capital stock of The Brooklyn Brewery Corporation.</li></ul>

Joseph Sulzbach

Susan (“Suz”) co-chairs the ESG + Sustainability and Social Enterprise + Impact Investing practices. Her practice focuses on late-stage financings, secondaries, and other corporate transactions for investors, such as SoftBank and Temasek, and on investments for some of the top investors dedicated to impact, from “impact first” foundations to family offices to private equity funds. She co-led the drafting group for the first of the new corporate forms (the Social Purpose Corporation in California), has created hybrid/tandem corporate structures and crafted debt and equity instruments that blend impact with traditional financial terms, and has used corporate law to develop creative capital market solutions to pressing environmental problems. She also advises the boards of public and private companies on corporate governance and fiduciary duties as applied to sustainability and climate change.She was named a California Lawyer Attorney of the Year (CLAY) in 2012 and 2016 by Daily Journal and the Most Innovative Lawyer in North America in 2015 by the Financial Times.Leading Business AdvisorA powerhouse negotiator, clients note that “you cannot get a better corporate counsel” and that Suz “understands the big picture, could not be more responsive, and understands the business” (The Legal 500 US). She has extensive experience providing corporate and finance advice to companies and investors in connection with growth equity financings and secondaries, with particular experience in late-stage investments that have come to rival traditional strategic acquisitions in size and significance. Her experience includes leading some of the highest-profile late-stage investments over the past few years, including notable transactions for SoftBank Group (in the two largest private tender offers in history) in its $7.7 billion investment in Uber, $4.4 billion investment in WeWork, further $10 billion investment in WeWork, $1 billion investment in SoFi, and $250 million investment in Kabbage. She has also advised Temasek on its $800 million investment in Verily Life Sciences, Intel on its equity investment in Cloudera, and each of Fortress, TPG Rise, Vision Ridge Partners, Generation Investment Management, and Pontifax AgTech in numerous mid- to late-stage investments in clean technology, sustainability, education, food, and agriculture technology.Social Enterprise and Impact InvestingSuz is the go-to legal resource for social enterprises (for-profit and non-profit companies focused on social or environmental purpose), impact investors (investors interested in social or environmental returns), and mainstream companies developing environmental, social, and corporate governance policies. With deep expertise in the impact investing model, institutional investors exploring the space turn to her for creative solutions and her ability to structure both investments and companies to emphasize impact and returns.She represents a wide range of investors who are focused on impact, from foundations like the Gates Foundation, The Nature Conservancy, and The Rockefeller Foundation, to family offices like Armonia, Cornerstone Capital, Emerson Collective, New Island Capital, and Omidyar Network, to private equity funds like Goldman Sachs, TPG Rise, Vision Ridge Partners, and Generation Investment Management, in their equity investments in companies and projects that are focused on generating impact and returns for investors. She has deep experience and expertise ensuring energy, sustainability, and other investments have positive impact through the use of new corporate forms, hybrid or “tandem” structures with non-profits and for-profits, and alternative debt and equity instruments.Notable work in this space includes the establishment of a tandem structure, The Carbon Endowment, to retire coal assets at scale while securing a revenue stream for community reinvestment and job training in coal communities. Suz also advised on the structuring of Common Sense Growth as an extension of the non-profit Common Sense Media (to invest in companies that address issues related to children, education, and technology), the establishment of a fund for TPG Rise to provide debt financing to Echoing Green fellows, the spin-out of PRX from Public Radio International (to generate new revenue flows up to the non-profit), the establishment of a for-profit joint venture with non-profit Medicines360 (to allow the non-profit to distribute its healthcare products to women in the developing world), and the structuring of a for-profit evergreen fund that allows The Nature Conservancy to aggregate return-seeking and donor capital in order to invest in preserving our natural resources. She has also advised numerous clients on converting to a public benefit corporation or social purpose corporation model (which requires balancing traditional fiduciary duties against a social or environmental purpose), including This American Life, Revolution Foods, Rise Labs, and Beneficial State Bancorp.Suz also regularly advises boards of directors of private and public companies, special committees, and CEOs on corporate governance, particularly the intersection of fiduciary duties with sustainability, and focuses on environmental, social, and governance issues.Unmatched Cleantech and Renewable Energy ExperienceIn addition to founding and chairing the firm’s Social Enterprise and Impact Investing Group, Suz serves as Chair of Morrison & Foerster’s Energy Group and has extensive experience representing start-up to late stage private companies in the clean technology or sustainability space. She provides corporate and finance advice in connection with equity and debt financings, mergers, acquisitions, asset purchases and sales, reorganizations, and joint ventures. She has experience working with renewable energy start-up companies and renewable energy developers in the solar, wind, and biofuels industries. Suz has assisted renewable energy start up companies with raising venture capital and has advised renewable energy developers on project acquisitions.Suz’s representative renewable energy, cleantech, sustainable, and social enterprise clients include Anaergia, Change.org, EDF Renewables, E.ON, Etsy, First Look, OneSun, Planet Labs, Rising Sun Energy, RSF Social Finance, SustainBio, Trelys, Inc., Wikipedia, and Xpansiv.Board Activity and Thought LeadershipMs. Mac Cormac was a founding board member of the Sustainability Accounting Standards Board (SASB), is a member of the board of directors of Business for Social Responsibility (BSR), the Ceres President’s Council, and the Earth Genome Project, and is an advising board member of the Committee Encouraging Corporate Philanthropy’s Strategic Investor Initiative.She has joined the faculty (teaching on the intersection of sustainability and fiduciary duties) at both the Stanford Director’s College and the Northwestern Corporate Counsel Institute and is an adjunct professor at UC Berkeley School of Law, teaching a course on Social Enterprise.