McLaren CEO Zak Brown sent a letter to the FIA this week urging the governing body to codify a ban on shared ownership structures across Formula 1 teams, a move that surfaces two years after he first flagged the issue publicly and arrives as franchise valuations push north of $2 billion per entry.
The letter does not name a specific transaction or investor, but the timing is deliberate. Multiple team paddock sources noted in March that at least three family offices with existing stakes in lower-midfield teams have explored secondary positions in rival outfits, treating F1 entries as portfolio diversification rather than single-asset commitment. Brown's intervention pre-empts a scenario where crossover capital creates perceived or actual conflicts when two teams share a beneficiary during a title fight, a sponsorship renewal, or a technical regulation vote.
Brown, 54, first aired the concern in late 2024, months before Liberty Media's Las Vegas Grand Prix revenue disclosures showed the commercial upside of grid parity. His consistency suggests McLaren's board sees regulatory clarity as a prerequisite for the team's $1.8 billion valuation in private discussions with prospective minority investors. If the FIA allows shared stakes, McLaren's pitch to institutional allocators becomes messier: co-ownership structures invite questions about competitive firewalls, data-sharing boundaries, and sponsor exclusivity zones that complicate diligence and depress multiples.
The competitive integrity angle is the public argument. The financial angle is the operating one. Shared ownership muddies the anti-dilution clauses and board-seat mechanics that govern F1 team cap tables, especially as more teams pursue 25% to 35% minority sales to sovereign wealth funds and sports-focused private equity. A secondary investor holding 15% of Team A and 8% of Team B creates disclosure headaches, governance drift, and potential sponsor conflicts if both teams chase the same automotive or energy brand. It also destabilizes the Concorde Agreement's economic model, which allocates prize money and commercial rights under the assumption of ten independent operators.
Brown's letter arrives as the FIA prepares its 2026 technical regulation rollout and reviews governance amendments tied to the Andretti bid aftermath. Multiple team principals told The Athletic in March they expect the FIA to address ownership crossover in the same regulatory package that tightens cost-cap auditing and updates the dispute resolution process. If the FIA declines, McLaren is positioned to press the issue through the F1 Commission, where teams hold veto power over Concorde modifications and can block rule changes that dilute competitive separation.
The risk for McLaren is that aggressive lobbying alienates potential co-investors who view F1 teams as interchangeable portfolio holdings. The upside is that a clean ownership rule accelerates capital inflows by removing ambiguity. One London-based family office sizing a $400 million minority stake in a top-five team told Bloomberg in February that shared ownership prohibition is a *necessary condition* for deployment, not a negotiating point. Brown's letter formalizes what several teams already enforce through shareholder agreements, but codification turns a contractual preference into a grid-wide structural moat.
Watch for the FIA's response in the next 45 days, ahead of the June World Motor Sport Council meeting in Paris. If the governing body declines to act, expect McLaren to escalate through the F1 Commission and coordinate with at least three other teams to petition the Commercial Rights Holder directly. Also watch minority stake announcements from mid-tier teams in Q3 2026—closings may include FIA-mandated exclusivity clauses even if the rulebook lags, signaling that investors are pricing in Brown's ask regardless of official language.
The letter does not stop capital from entering F1. It stops capital from hedging.
The takeaway
Brown wants the FIA to ban shared team ownership before crossover deals complicate valuations, sponsor exclusivity, and competitive integrity across the grid.
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