Among the companies with shares expected to actively trade in Tuesday's session are Outerwall Inc. (OUTR), Huntsman Corp. (HUN) and Aeropostale Inc. (ARO).

Outerwall trimmed its financial targets for the current quarter and 2013, as the kiosk operator said recent Redbox rentals didn't meet expectations and high promotions hurt the average size of transactions. Outerwall said while rentals and revenue for Redbox were both higher in July and August from prior-year levels, "they were not to our expectations." Shares slumped 17% to $46.47 in premarket trading.

Huntsman agreed to buy fellow chemical maker Rockwood Holdings Inc.'s (ROC) performance additives and titanium dioxide businesses for $1.1 billion in cash, allowing Huntsman to become the second-largest global producer of titanium dioxide and inorganic color pigments for uses like paints and industrial coatings. Huntsman shares rose 6.8% to $20.45 in light premarket trading.

A Sycamore Partners fund has taken a nearly 8% stake in Aeropostale, calling the teen retailer "an attractive investment." Sycamore said it may communicate with the company's management and board about Aeropostale's business, assets strategy and future plans, among other issues. Shares jumped 12% premarket to $9.62.

Repros Therapeutics Inc. (RPRX) said its experimental drug for treating low testosterone produced almost identical positive results in the second of two late-stage trials needed for its effort to win regulatory approval. In both studies the drug, called Androxal, met the study goal of helping 75% or more patients achieve normal testosterone levels while also meeting another primary goal of not worsening patients' sperm count. Shares surged 36% to $29 premarket.

Werner Enterprises Inc. (WERN) issued a third-quarter earnings outlook that fell short of Wall Street's expectations, as the trucking company cited lower equipment sale gains, higher costs and other factors. The company's muted guidance comes after it didn't provide any financial estimates in the first two quarters of the year, though those results also missed expectations. In premarket trading, shares slid 4.8% to $23.23.

Pandora Media Inc. (P) said it plans to offer 10 million shares and that a stakeholder would offer an additional four million shares. For the proceeds being raised by the Internet radio service provider, the company intends to use the funds for general corporate purposes such as working capital and capital expenditures. Shares were down 3.3% to $23.20 premarket.

Shares of Kythera Biopharmaceuticals Inc. (KYTH) jumped after the clinical-stage biopharmaceutical firm disclosed positive results for two Phase III trials for its treatment of submental fat, also known as a double chin. The stock climbed 26% to $42.20 premarket.

Chinese solar product company JinkoSolar Holding Co. (JKS) outlined plans to offer 3.5 American depositary shares. The company has about 22.3 million ADS outstanding, according to Factset, and they were off 6% to $17.60 premarket.

 
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Altria Group Inc. (MO) raised its full-year profit outlook, a rosier view attributed to a credit the tobacco company expects to receive tied to an arbitration panel ruling involving several U.S. states. The adjusted profit guidance was reaffirmed.

Coty Inc.'s (COTY) fiscal fourth-quarter loss narrowed sharply after the beauty-products maker posted significant write-downs a year ago, in its first quarterly report as a newly public company. The company warned Tuesday that it expects its revenue in its first quarter to marginally decline from the prior year, citing a deceleration of market growth in the U.S. and Europe over the last few months.

Activist shareholder Sardar Biglari is pushing for restaurant and retail-store chain Cracker Barrel Old Country Store Inc. (CBRL) to declare a special dividend of $20 a share and said he plans to call for a special meeting of shareholders to vote on it.

FactSet Research Systems Inc.'s (FDS) fiscal fourth-quarter earnings rose 5% as the financial-data provider reported its strongest quarterly client increase in years, though revenue growth continued to slow. Results met the company's expectations.

Hudson's Bay Co. (HBC.T) appointed Harrods executive Marigay McKee as the new president of Saks Fifth Avenue, effective once the Canadian retailer completes its pending acquisition of the U.S. luxury retailer. Earlier Monday, Saks Inc. (SKS) said Chairman and Chief Executive Stephen I. Sadove and the retailer's president and chief merchant, Ronald L. Frasch, plan to leave the company following the merger.

James River Coal Co. (JRCC) disclosed plans to idle coal production at several locations in Central Appalachia, citing continuous weakness in coal markets domestically and in markets abroad. The plan to idle production will result in about 525 full-time employees being furloughed, James River said.

Mosaic Co. (MOS) lowered its sales, volume and margin guidance for its potash and phosphates segments in the calendar third quarter amid short-term weakness in markets. The fertilizer company's long-term outlook remains positive amid high commodity prices and other fundamentals that are expected to drive near-record phosphate and potash shipments this year, said President and Chief Executive Jim Prokopanko. Yet, he warned: "In the short term, however, dealers are cautious and are deferring purchases."

Write to Lauren Pollock at lauren.pollock@wsj.com

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