Rio Tinto Plc, Nokia Corp, Facebook Inc, BHP Billiton, Transocean, Dynavax Technologies, CBRE Group, Apple Inc and Carnival Corp. are among the companies whose shares are moving in pre-market trading Wednesday.

Rio Tinto Plc (RIO) stock surged 3.26 percent to $51.93 in pre-market trading. The stock has a 52-week low of $41.59, a 52-week high of $63.18 and $92.88 billion in market capitalization.

Nokia Corp. (NOK) stock surged 2.03 percent to $3.51 in pre-market trading. The company announced Tuesday that it had agreed to sell and lease back its head office building in Espoo, Finland, on a long-term lease to Finland-based Exilion. The Finish mobile maker was selling its 48,000 square meter headquarters, located in Espoo for 170 million euros as part of an ongoing drive to sell off non-core assets.

Facebook Inc. (FB) stock gained 1.82 percent to $27.96 in pre-market trading. Facebook will replace Infosys Ltd. to become a component of the NASDAQ-100 Index and the NASDAQ-100 Technology Sector Index prior to market open Wednesday, Dec 12, 2012.

BHP Billiton Ltd. (BHP) stock advanced 1.37 percent to $72.73 in pre-market trading. The stock has a 52-week low of $59.87, a 52-week high of $82.23 and $115.21 billion in market capitalization.

Transocean Ltd. (RIG) gained nearly 1 percent to $47.15 in pre-market trading. The stock has a 52-week low of $38.21, a 52-week high of $59.03 and $16.78 billion in market capitalization.

Dynavax Technologies Corp. (DVAX) stock tumbled 11.87 percent to $2.45 in pre-market trading. The company stock plunged more than 30 percent last month.

CBRE Group Inc. (CBG) stock plunged 3.61 percent to $17.90 in pre-market trading.  The company announced Monday that Robert E. Sulentic was appointed as president and Chief Executive Officer, effective Dec. 1. Sulentic succeeded Brett White, who retired Nov 30, 2012.

Apple Inc. (AAPL) stock declined 1.19 percent to $569.01 in pre-market trading. The stock has a 52-week low of $377.68, a 52-week high of $705.07 and $541.69 billion in market capitalization.

Carnival Corp. (CCL) stock declined 1.03 percent to $37.39 in pre-market trading. The company Tuesday announced a quarterly cash dividend of $0.25 per share, payable on Dec 14, 2012, to shareholders of record Nov 23, 2012. Carnival announced a special dividend of $0.50 per share payable Dec 28, 2012, to shareholders of record Dec 7, 2012.