Linden Capital Partners has announced the closing of its fourth private equity fund with $1.5 billion.

Linden Capital Partners IV was oversubscribed, exceeding a $1.25 billion target. The fund will target middle-market healthcare companies in sectors including services, medical products, specialty distribution and pharmaceuticals.

Linden Capital, based in Chicago, is a PE firm focused exclusively on leveraged buyouts in the healthcare and life sciences industries.