According to Morningstar Fidelity's subsidiary Pyramis Global Advisors owns 4% of the roughly 9% Fidelity holds in total.
According to the website:
Pyramis Global Advisors is an asset manager focused on developing solutions to serve the needs of institutional investors around the world.
Our multi-asset-class investment platform featuring proprietary global sector, quantitative, and technical research—all backed by Fidelity, with one of the world’s largest research capabilities—seeks to generate diversified sources of alpha and a rigorous approach to risk management for clients.
Pyramis has a comprehensive approach to investment management including:
Experienced sector and diversified portfolio managers
Independent, diversified sources of potential alpha
Rigorous and disciplined fundamental and quantitative research
Proprietary portfolio risk management platform
Dedicated equity trading operation built on leading-edge technology