Adage Capital Management

Phillip Gross and Robert Atchinson founded Adage Capital Management in 2001 after leaving Harvard Management Company, where they managed the endowment's domestic equity portfolio. Both are veteran public-markets investors, and their Harvard ties directly shaped the firm's endowment-like approach to concentrated, fundamental investing.

Adage runs concentrated, long-only and long/short equity portfolios focused on US large- and mid-cap stocks. The firm uses bottom-up fundamental research to build 30- to 50-name portfolios, with significant allocations to healthcare, technology, and financial services. It does not engage in macro trading or systematic strategies.

Adage functions as a hybrid: it manages commingled capital for a small group of institutional investors while also serving as the personal investment vehicle for its founders. The partners have substantial personal wealth invested alongside clients, which aligns interests in a way that resembles a family office more than a standard hedge fund.

While Adage primarily invests in public equities, SEC filings and public record indicate the firm occasionally participates in late-stage private financings and pre-IPO rounds. These private investments are typically extensions of its public-markets research rather than a standalone private equity program.

Harvard Management Company was the anchor investor when Adage launched in 2001, providing initial capital and a significant institutional endorsement. Gross and Atchinson's prior roles as Harvard's domestic equity heads gave them the network and reputation to attract other endowment, foundation, and pension clients.