David Weinberg

Helix Funds LLC operates as a real estate investment management company. It targets value-add acquisition opportunities in various real estate sectors. The company was founded by David A. Helfand in 2003 and is headquartered in Chicago, IL.

LaSalle Investment Management, Inc. (LaSalle) is a private equity subsidiary of Jones Lang LaSalle, Inc. founded in 1980. The firm is headquartered in Chicago, Illinois.

Equity Commonwealth is an internally managed and self-advised real estate investment trust, which engages in the ownership and operation of office properties. It focuses on the investment, asset management, and operating decisions for shareholders and customers. The company was founded by Barry Michael Portnoy on October 9, 1986 and is headquartered in Chicago, IL.

Equity International Management LLC (Equity International) is a private equity subsidiary of Chai Trust Co LLC founded in 1999 by Samuel Zell. The firm is headquartered in Chicago, Illinois.

EQC Capitol Tower Property LLC operates office buildings and properties. The company is based in Chicago, IL. The CEOs of the company are David A. Helfand and David S. Weinberg.

Sidley Austin LLP is a premier legal adviser with over 2000 lawyers in 20 offices worldwide. Sidley Austin is based in Chicago, IL and has subsidiaries in Germany, Hong Kong, United States, United Kingdom, and Japan. The firm has been providing superior client service for over 150 years and has a diverse group of legal professionals from many cultures who are dedicated to teamwork and collaboration. Sidley Austin has forged enduring relationships with the business community and serves a varied and high-caliber group of market leaders, many of whom are pioneers in their respective industries and professions. The firm is committed to pro bono service and its lawyers and staff devote more than 100,000 hours annually to serving those most in need.