The bombshell divorce filing on January 22, 2026, has thrust Austin Sosa—the low-profile investment banker and estranged husband of actress Jaime King—into the Hollywood spotlight overnight.

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Just seven months after King announced their engagement in July 2025, Sosa filed to end their secret marriage, leaving the Hart of Dixie star “completely blindsided,” per her statement to Page Six and People.

Here are 5 key things to know about the man behind one of 2026’s fastest celebrity splits:

1. Finance Career Powerhouse
   Sosa is a seasoned investment professional based in the Los Angeles metropolitan area. He currently works as an investor and producer at a private Family Office (since August 2023), managing high-level investments. Before that, he spent three years (June 2020–July 2023) as an investment banker at Citi (Citigroup), following earlier roles as a Private Equity Associate at SageLink Capital (2019–2020) and AltaLink Capital (2016–2017). His LinkedIn highlights expertise in private equity and finance, with over 500 connections in the industry.
2. Education and Roots
   He graduated from Brigham Young University (BYU), a detail frequently noted in profiles during the engagement buzz. While specifics on his degree aren’t public, his career trajectory points to a strong foundation in business and finance.
3. Low-Key Public Presence
   Sosa maintains a deliberately private life. His Instagram (@austin_sosa) is set to private with around 500 followers and limited posts, offering little insight beyond the basics. He has no widely active public social media presence otherwise, which made the whirlwind romance with King even more intriguing when it surfaced.
4. Producer Side Hustle
   Beyond finance, Sosa holds credits as a producer—likely tied to short films or independent projects—adding a creative dimension to his otherwise buttoned-up professional persona. This blend of Wall Street savvy and entertainment ties may have helped spark the connection with Hollywood’s King.
5. The Sudden Romance & Split
   The couple met through mutual friends in late 2024, got engaged in July 2025 (with King sharing joyful photos involving her two sons bonding with Sosa and his family), and secretly married sometime after. The marriage remained under wraps until the divorce filing exposed it. King emphasized in her response that they were “working on our relationship” and denied any link to recent rumors involving hotelier Vikram Chatwal, calling interactions “strictly professional.”

As court details emerge and speculation swirls online, Austin Sosa—once a mystery fiancé—has become the center of a classic Hollywood “blink-and-you-miss-it” love story gone wrong. With King’s focus now on her children and career post her 2023 divorce from Kyle Newman, this chapter closes as quickly as it began.