Four Quarters Capital

Guillaume Malle is the sole portfolio manager, serving as founder and chief investment officer since the firm's launch in 2013. Prior to Four Quarters, Malle spent a decade at Soros Fund Management, where he was a managing director focused on global equities. The firm is structured as a single-PM vehicle — all position sizing, entry, exit, and management engagement decisions flow through Malle directly.

Four Quarters runs a concentrated long-biased equity book of 8 to 12 positions, primarily in North American and European mid-cap companies. Malle targets businesses he believes are misunderstood or under-managed, frequently taking top-three-shareholder stakes that allow direct engagement with boards. The strategy explicitly rejects broad diversification, with holding periods designed to stretch across three to five years to capture operational improvements.

Malle's model is built on engagement — the firm seeks to become a top-three shareholder in each portfolio company, which creates a direct line to management and boards. Public filings show the firm has taken positions such as a 9.9% stake in Turning Point Brands and engaged on capital-allocation policy. The engagement is operational and strategic rather than confrontational, focused on long-term compounding rather than short-term activism.

Four Quarters Capital is an asset manager structured as a concentrated equity partnership, not a family office. Malle launched the firm with external institutional and high-net-worth capital in 2013. The vehicle files a 13F with the SEC, making its U.S. equity holdings publicly visible on a quarterly lag — a transparency posture unusual among hedge fund managers.

Malle practices a constructive engagement style that public filings characterize as collaborative rather than hostile. The firm has stated in regulatory filings that it intends to engage with management on operational strategy and capital allocation, but it has not run proxy contests or publicly agitated for board seats. The approach resembles concentrated value engagement more than traditional activist campaigning.

The firm invests across fragmented industries where mid-cap companies can sustain durable advantages — historically including consumer products, healthcare services, and select industrial technology. Malle's Soros background informs a global lens, but the portfolio has concentrated on North American and European-listed equities where the firm can take meaningful ownership stakes.

Four Quarters uses long-duration capital structures with lock-up provisions that match the multi-year holding periods of its equity positions. Malle deliberately structured the vehicle to avoid the monthly or quarterly redemption pressure common in traditional hedge funds, allowing the strategy to ride out operational turnarounds without forced selling. Specific lock-up terms are not publicly disclosed.