Billionaire technology investor Marc Andreessen has returned to the financial spotlight after selling approximately $12.8 million worth of Meta Platforms stock. The transaction, disclosed in a regulatory filing, involved 20,951 shares sold through Andreessen Horowitz Fund VIII. The development has attracted attention to the venture capitalist’s investments, business interests and personal life, including his marriage to philanthropist Laura Arrillaga-Andreessen.
Marc Andreessen’s wife, Laura Arrillaga-Andreessen, is a Stanford University lecturer, author and philanthropist who comes from one of Silicon Valley’s prominent real estate families. The couple married in 2006 and have built successful careers in technology investment and charitable giving. Laura has established her own reputation through educational initiatives and organizations dedicated to improving philanthropy.
Marc Andreessen Sells $12.8 Million in Meta Shares
Marc Andreessen, who serves on Meta Platforms’ board of directors, reported selling 20,951 shares of the company’s Class A common stock on November 2, 2026.
According to the regulatory disclosure, the shares were sold at prices ranging from $606.85 to $613.88, generating approximately $12.8 million. The transactions were conducted indirectly through Andreessen Horowitz Fund VIII rather than through a direct personal holding.
The filing also identified 49,448 Meta shares held indirectly through the LAMA Community Trust, where Andreessen and his wife serve as trustees.
The stock sale has brought renewed attention to Andreessen’s extensive financial interests. However, the filing does not establish his personal motivation for the transaction.
Who Is Marc Andreessen’s Wife Laura Arrillaga-Andreessen?
Laura Arrillaga-Andreessen is an American philanthropist, educator, author and social entrepreneur. She is best known for developing initiatives that encourage charitable giving and help nonprofit organizations improve their effectiveness.
She currently teaches at Stanford Graduate School of Business, where her courses focus on philanthropy, leadership and social impact.
Laura founded the Silicon Valley Social Ventures Fund, commonly known as SV2, and helped establish Stanford’s Center on Philanthropy and Civil Society.
She is also the founder and chairman of the Institute on Generosity, established in 2024 to encourage charitable participation through research, education and practical resources.
Her work has earned recognition within academic and philanthropic communities, giving her a professional identity independent of her husband’s technology career.
Marc Andreessen and Laura Arrillaga-Andreessen’s Marriage and Family
Marc Andreessen and Laura Arrillaga-Andreessen met in 2005 at a New Year’s Eve gathering organized by a former eHarmony executive. Their relationship developed quickly, and they married in 2006.
The couple have one son and have generally kept their family life private despite their prominence in Silicon Valley.
Their marriage has also included significant charitable commitments. In 2007, they pledged $27.5 million toward the development of a new emergency department at Stanford Hospital.
The donation represented one of their early major philanthropic projects as a married couple.
Although Marc frequently attracts attention through technology investments and public commentary, Laura has continued focusing on education, charitable organizations and community development.
Laura Arrillaga-Andreessen’s Parents and Career
Laura is the daughter of John Arrillaga, a billionaire real estate developer who helped shape Silicon Valley’s commercial property market, and Frances Marion Cook Arrillaga.
Her father became one of Stanford University’s prominent benefactors, supporting major campus construction and educational projects. He died in January 2022 at the age of 84.
Laura grew up in Palo Alto, California, and later attended Stanford University, earning degrees in art history, education and business.
She published Giving 2.0: Transform Your Giving and Our World in 2011, exploring how individuals can make charitable contributions more effective.
Her professional work includes founding philanthropic organizations, teaching university courses and advising initiatives focused on social change.
As Marc Andreessen continues attracting attention through his Meta stock transactions and venture capital investments, Laura Arrillaga-Andreessen remains an influential figure in her own field. Their marriage connects two established Silicon Valley careers, with Marc focused on technology and investment while Laura continues advancing philanthropy and education.
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