McLaren CEO Zak Brown has filed a formal letter with FIA President Mohammed Ben Sulayem demanding rule changes that would prohibit any single entity from holding stakes in multiple Formula 1 teams. The letter, sent in late April, does not name specific ownership structures but arrives as three current grid slots operate under financially intertwined holding companies and two expansion bids circle $600M entry fee conversations.
The timing is exact. Formula 1's commercial rights agreement permits new entrant negotiations to begin June 1st. McLaren closed a $730M minority stake sale to MSP Sports Capital in 2022 at a $3.8B enterprise valuation, structuring the deal with specific anti-dilution clauses tied to grid stability. Brown's letter frames cross-ownership as a threat to competitive integrity, but the document also surfaces McLaren's balance sheet exposure: the team's current sponsor portfolio includes $180M in annual commitments from brands paying premium rates for what they believe is uncompromised competition.
The subtext is Alpine and Haas. Both teams share technical partnerships and board-level advisors with entities exploring acquisition structures that would link operations under common financial control without violating the current Concorde Agreement's loose language on "team independence." One proposed model, reviewed by family offices in Monaco last month, contemplates a holding company owning 49% of two teams while maintaining separate racing licenses. Brown's letter describes this as "regulatory arbitrage" and asks the FIA to codify a hard prohibition before the 2026 power unit regulations create new entry economics.
What matters for the room: McLaren's sponsor renewal cycle begins in Q3. Title partner Google pays approximately $35M annually under a deal that expires December 2026. Internal McLaren documents show Google's brand safety committee has flagged perceived conflicts of interest as a non-renewal risk if the grid allows ambiguous ownership structures. The same concern appears in papaya team briefings to potential new sponsors, where executives are asking whether they're buying a McLaren activation or a shared platform with a sister team wearing different colors.
The FIA has 90 days to respond under governance protocols. Brown's letter requests an emergency rule change before the June commercial window opens, but FIA rulemaking typically requires majority team consent and 120-day notice periods. That puts any formal prohibition into late August, after new entrant conversations have already occurred. Meanwhile, Andretti Global, previously denied entry, is circulating updated financial models to the FIA that emphasize single-team ownership as a competitive differentiator worth reconsidering their application.
Brown's move also constrains McLaren's own future options. The team has held preliminary conversations with Saudi Arabia's Public Investment Fund about a potential $400M capital raise to fund a new simulator facility and expand its Extreme E program. Any deal structured as a minority stake would require board seats, and PIF already holds advisory positions in two other motorsport properties. Brown's letter effectively forecloses structures that would give McLaren access to cheaper capital through shared governance with other racing entities.
The letter does not cite Liberty Media's dual ownership of Formula 1 and a 23% passive stake in Live Nation, which books F1 hospitality events. Brown's selective framing suggests the target is team-level ownership, not commercial ecosystem conflicts.
Watch coordinator hires at Alpine and Haas through May. If either team delays announcing technical leadership for 2026, it signals ownership structure uncertainty is freezing operational decisions. The FIA's response deadline falls June 15th, two weeks after new entrant window opens.
The takeaway
Brown's letter blocks McLaren's own future ownership options while forcing FIA to clarify rules before **$600M** entry fee negotiations begin June 1st.
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