The privately held artificial intelligence company xAI, founded by entrepreneur Elon Musk, recently completed a substantial Series E funding round, raking in $20 billion and achieving a valuation exceeding $200 billion. This round attracted significant interest from institutional investors and select individuals, notably including a sitting member of the United States Congress.
Among the exclusively chosen investors was Republican Congresswoman Lisa McClain of Michigan, who disclosed an investment in xAI ranging from $100,000 to $250,000 on December 15. This disclosure was captured by the Benzinga Government Trades page, underscoring her participation in one of the tech sector's most significant private funding rounds of the year.
xAI, which operates under Elon Musk's broader tech ecosystem, also encompasses Musk’s social media platform X and the AI chatbot Grok. Despite heightened public interest, the company's private status restricts investment opportunities to a limited audience capable of participating in high-value funding events.
The $20 billion Series E round that included Congresswoman McClain attracted notable investors beyond individual buyers. Participants encompassed major technology and investment corporations such as NVIDIA Corporation (NASDAQ:NVDA), Cisco Systems, Inc. (NASDAQ:CSCO), Fidelity Investments, Baron Capital Group, Valor Equity Partners, StepStone Group, MGX, and the Qatar Investment Authority. These backers collectively signal strong institutional confidence in xAI’s long-term potential.
In a recent public statement via Twitter, Elon Musk expressed gratitude toward the xAI team and its investors, acknowledging their trust in the company's vision and future trajectory.
Interest in Musk-related ventures remains robust among retail investors as well. A Benzinga poll conducted in May 2025 asked respondents to identify which Musk-affiliated company they would most prefer to invest in. SpaceX and its subsidiary Starlink each garnered 27% of votes, thereby leading the preferences. xAI secured a considerable share as well, capturing 19%, surpassing even Tesla Inc. (NASDAQ:TSLA), which received 16%.
This successful funding initiative aligns with Musk's recent financial ascendance. According to Bloomberg data, Musk’s net worth has surpassed $600 billion, reinforcing his status as the wealthiest individual globally.
Details on Congresswoman Lisa McClain’s Investment Portfolio
Under current regulations, members of Congress are permitted to invest in private enterprises as long as they comply with required transparency and disclosure protocols similar to those applied to stock trading activities.
Historical disclosures indicate that lawmakers such as Rep. Nancy Pelosi have previously invested in private firms like Databricks, illustrating a precedent for such financial involvement by elected officials.
Benzinga’s monitoring of congressional stock trade activity highlighted Rep. McClain’s extensive trading behavior in 2025. Reports show that she filed hundreds of stock transactions late in August of that year, including multiple purchases of Tesla shares. In addition to Tesla, she acquired stakes in Palantir Technologies, a company known for sizable government contracts and notable stock appreciation post-investment.
To date, McClain’s portfolio reflects active engagement in technology and growth-oriented equities. Data accessed from Quiver Quantitative reveals that her net worth has experienced multi-million dollar growth over recent years, a trajectory that may accelerate following her investment in xAI should the company realize its anticipated success.
Concerns around congressional investment actions surfaced recently as Elon Musk publicly questioned the wealth increases observed among some members of Congress. In February 2025, Musk retweeted criticism targeting several Democratic representatives who reportedly augmented their personal wealth since assuming office.
Market Performance of Key Stocks
The stocks associated with xAI’s recent funding partners recorded varied movement recently. Tesla's shares traded near recent highs, reaching approximately $436.10 with minimal daily variation. Cisco Systems hovered around $74.17, and NVIDIA closed near $185.16. These stable performances underline a positive market environment amid the injection of fresh capital into xAI.
Conclusion
The infusion of $20 billion into Elon Musk’s private AI company xAI not only underscores the firm’s elevated valuation and growth prospects but also signals significant confidence from both institutional investors and influential individuals, including a sitting congresswoman. While access to these investment opportunities remains limited, the participation of figures like Rep. Lisa McClain brings additional attention to private investment dynamics within political circles. For Musk, this latest funding success complements his broader portfolio of ventures as he continues to maintain his position at the forefront of technological innovation.