Timothy L. Gasperoni

Tekla Healthcare Investors is a closed-end investment fund, which engages in investing in the healthcare industry including biotechnology, medical devices, and pharmaceuticals. Its objective is to provide long-term capital appreciation through investments in companies in the healthcare industry. The company was founded on October 31, 1986 and is headquartered in Boston, MA.

abrdn Healthcare Investors operates as a closed-end investment fund, which engages in the investment in the life sciences industry. It invests in biotechnology, pharmaceutical, diagnostics, managed healthcare, medical equipment, hospitals and healthcare information technology and services. The company was founded on February 20, 1992 and is headquartered in Boston, MA.

Transkaryotic Therapies, Inc. (TKT) was a biopharmaceutical company with a major focus on developing products for the treatment of rare diseases. The company is used to markets one product, Replagal™, for the treatment of Fabry disease in the European Union and other countries, and was developing products for Hunter syndrome and Gaucher disease. The company was located in Cambridge, MA.

Tekla Capital Management LLC is an independent, SEC-registered investment advisor headquartered in Boston, Massachusetts. Formerly known as Hambrecht & Quist Capital Management LLC, the firm serves as an investment adviser for four closed-end funds – Tekla Healthcare Investors, Tekla Life Sciences Investors, Tekla Healthcare Opportunities Fund and Tekla World Healthcare Fund.

abrdn (USA) Ltd. (abrdn USA) is an investment advisory firm headquartered in Boston, Massachusetts. The firm was founded in 2001 and formerly known as SL Investments (No.1) Ltd. and as Standard Life Investments (USA) Ltd. They are a subsidiary of abrdn Investment Management Ltd., ultimately owned by abrdn Plc (LON: ABDN) in Great Britain. abrdn USA provides investment products and solutions to individuals, governments, pension funds, insurers, companies, charities and foundations.

Decision Resources, Inc. provides information, analysis, and insight on critical issues to the healthcare industry worldwide. It provides market research publications, advisory and consulting services for pharmaceutical companies, managed care organizations, and medical device manufacturers. The company was founded in 1990 and is headquartered in Burlington, MA.

Founded in 2003 by Hamilton Mehlman, Andesite LLC is a hedge fund manager located in Boston

Founded in 2006, Cowen Asset Management LLC is an investment advisor firm located in Boston. They are a subsidiary of Cowen Group, Inc. (NasdaqGS: COWN).

Founded in 2006 by Malcolm MacColl, Crosswind Investments LLC is a registered investment advisor located in Boston. The firm provides investment management services to high net-worth individuals, banking and thrift institutions, investment companies (including mutual funds), pension and profit sharing plans and corporations. The firm is a sub-advisor to the Aston/Crosswind Small-Cap Growth Fund.