Among the companies with shares expected to actively trade in Thursday's session are Amazon.com Inc. (AMZN), Krispy Kreme Doughnuts Inc. (KKD) and Williams-Sonoma Inc. (WSM).

Amazon said it would raise the rate for its prime membership, which offers perks such as free and expedited shipping, to $99 a year from $79, the first price increase in the shipping and video-streaming service's nine-year history. Shares edged up 2.2% to $378.65 premarket.

Ameresco Inc. (AMRC) said its fourth-quarter earnings fell 69% as weaker margins offset the energy-efficiency and renewable-energy company's revenue growth. For 2014, the company forecast revenue of $560 million to $600 million, below estimates of analysts polled by Thomson Reuters for $608 million. Shares dropped 3.9% to $9.50 premarket.

Depomed Inc. (DEPO) swung to a fourth-quarter profit as the specialty pharmaceutical company said it sold an accounting method allowing it to record revenue from royalty rights to another company earlier in the quarter. The company's outlook topped analyst expectations. Shares climbed 8.9% to $14.70 premarket.

Dollar General Corp. (DG) said its fiscal fourth-quarter profit rose on higher sales, although results fell below Wall Street expectations. Shares of the discount retailer fell 2.3% to $57.91 as it also offered underwhelming earnings guidance.

General Electric Co. (GE) filed paperwork for an initial public offering of its North American retail finance operations, with the business operating under the new name Synchrony Financial. The company in November had unveiled plans to file for the IPO early in 2014, as part of the conglomerate's most aggressive move yet to shrink the size of its financing arm, which still generates half its profit. Shares edged up 1.1% to $26.03 premarket.

Gogo Inc. (GOGO) reported stronger-than-expected revenue growth during the fourth quarter. Shares of the company, which sells Wi-Fi access on commercial flights, rose 7% to $25.50 in recent premarket trading, as its quarterly loss wasn't as wide as feared.

JetBlue Airways Corp. (JBLU) agreed to sell its LiveTV unit for $400 million to French defense and electronic systems company Thales S.A., netting the airline a significant profit about a decade after buying the in-flight entertainment business. Shares edged up 4.2% to $9.12 premarket.

Krispy Kreme said its fiscal fourth-quarter profit more than tripled as the doughnut chain reported improved same-store sales. The company bumped its earnings guidance higher for the new year and increased its share-buyback authorization to $80 million from $50 million. Shares climbed 9.9% to $21.84 premarket.

NetApp Inc. (NTAP) said it is streamlining its businesses, including plans to reduce its global workforce by about 600 employees, in response to constrained spending on information technology. Shares dropped 1.1% to $37.45 premarket.

Plug Power Inc. (PLUG) said its fourth-quarter loss widened sharply on fair-value impacts that offset the fuel-cell manufacturer's double-digit revenue growth. But shares, which are known for their volatility, rose 12% to $7.60 after being beaten down earlier in the week.

Vail Resorts Inc. (MTN) said its fiscal second-quarter earnings fell 2.1% on higher costs and as weak skier visitation at its Tahoe resorts weighed on growth at its mountain segment. Shares declined 3.2% to $69 premarket.

Venaxis Inc. (APPY) said a study of its appendicitis diagnostic test show improved test performance and met primary endpoints, and the company now plans to apply for U.S. Food and Drug Administration clearance. The in vitro diagnostic company's shares are up 21% to $3.28 in premarket trading.

Williams-Sonoma's fiscal fourth-quarter profit increased slightly as the housewares and furniture retailer reported higher sales, particularly at its West Elm and Pottery Barn brands. Results topped the company's expectations, pushing shares up 6.8% to $62.95 premarket.

 
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AgFeed Industries Inc. (FEEDQ) said it is engaged in settlement discussions with the Securities and Exchange Commission related to the regulator's fraud suit against the Chinese animal-feed and hog-production company. The SEC Tuesday sued the company and several of its former top officials, alleging they orchestrated or failed to stop an accounting fraud that inflated the company's revenue by $239 million.

Genesco Inc. (GCO) said its fiscal fourth-quarter earnings rose 8.7% despite weaker revenue as the company benefited from lower one-time charges. The retailer, which sells hats and footwear, posted results that missed expectations and offered a disappointing outlook for the year.

Gleacher & Co. (GLCH) said its board approved a proposal to dissolve, liquidate and distribute all its assets to shareholders, as it reported its fourth-quarter loss narrowed on higher revenue. Gleacher, an independent investment bank that provides financial advisory services, has been slammed with losses and staff defections over the past few quarters, and now has no meaningful revenue-producing operations.

Mylan Inc. (MYL) called a federal court's ruling on a patent related to Pfizer Inc.'s (PFE) Celebrex "favorable," and said it plans to start selling a generic version of the drug in May. Pfizer Wednesday said the U.S. District Court for the Eastern District of Virginia invalidated a patent that would have extended its U.S. exclusivity for the painkiller by 18 months.

Newell Rubbermaid Inc. (NWL) warned Wednesday its fiscal first-quarter results will be dragged down by the impact of severe winter weather across the U.S. and the recent recall of toddler car seats.

Write to Anna Prior at anna.prior@wsj.com and Lauren Pollock at lauren.pollock@wsj.com

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