Friday broker round-up
Whitbread: Barclays upgrades to Equal Weight with target price of 4150p.
Inmarsat: Deutsche Bank reiterates Buy with a target price of 1020p.
Halfords Group: HSBC reiterates Buy with a target price of 415p.
Pets at Home: HSBC downgrades to Hold with a target price of 230p.
National Grid: Berenberg upgrades to Buy with a target price of 1050p.
4imprint Group: Berenberg downgrades to Hold with a target price of 1950p.
BHP Billiton: UBS reiterates Neutral with a target price of 1350p.
Aveva: Goldman Sachs reiterates Sell with a target price of 1850p
GlaxoSmithKline: Jefferies reiterates Buy with a target price of 1780p.
Royal Mail: Credit Suisse reiterates Neutral with a target price of 481p.