Among the companies with shares expected to actively trade in Thursday's session are Supervalu Inc. (SVU) and Merck & Co. Inc. (MRK).

Supervalu said it's considering selling all or part of itself as the supermarket operator struggles to pay off debt and lower prices to win customers from rivals. The company also reported its fiscal first-quarter earnings fell 45%. Shares plunged 27% to $3.85 premarket.

Merck plans to close an advanced clinical study of its osteoporosis drug after an interim analysis showed that the trial met its primary efficacy goals, and that its benefits outweighed the risks. Shares jumped 3.8% to $42.77 premarket.

SAP AG's (SAP) operating profit rose 7% year-over-year in the latest quarter, beating analyst estimates. The German-based enterprise software maker pre-released the figure as part of its second-quarter results, which it plans to report in full on July 24. U.S.-listed shares jumped 4.3% to $59.17 in premarket trade.

India's Infosys Ltd. (INFY, 500209.BY) reported a lower-than-expected net profit for its fiscal first quarter and cut its revenue forecast for the year. U.S.-listed shares pf the software exporter slumped 8.3% to $40 in recent premarket trading. Peer Cognizant Technology Solutions Corp. (CTSH) was also trading lower, down 3.5% to $54.55.

ImmunoGen Inc. (IMGN) said it plans to offer an unspecified number of shares of common stock. Shares of the biotechnology company dropped 7% to $16.15 premarket.

 
    Watchlist:

Calix Inc. (CALX) cut its second-quarter guidance, pointing to a slowdown in customer spending. The supplier of broadband telecommunications equipment pointed to increased economic concerns and uncertainties surrounding regulatory reform as cause for the slowdown.

Golf equipment maker Callaway Golf Co. (ELY) said it plans to cut its workforce by 12% as the golf equipment maker looks to streamline operations and focus on its core product lines.

Chevron Corp. (CVX) said it expects its second-quarter earnings to rise from the first quarter boosted by strong profits in its refining arm, even as it projects to make less money from the sale of crude oil and natural gas.

Fastenal Co.'s (FAST) second-quarter earnings climbed 19% as the operator of industrial hardware supply stores booked higher revenue and continued opening new stores.

Hologic Inc. (HOLX) said its pending $3.7 billion acquisition of Gen-Probe Inc. (GPRO) is making progress and that Gen-Probe's chief agreed to stay with the combined company for at least 15 months to lead its diagnostics business. However, the health-products company gave downbeat revenue guidance for its fiscal third quarter.

IHS Inc. (IHS) raised its full-year revenue outlook, reflecting the market-research firm's recent acquisitions.

KB Home (KBH) has initiated a cash tender offer for up to $193.7 million in senior notes, as the home builder seeks to lighten its debt burden.

Marriott International Inc.'s (MAR) second-quarter earnings rose 5.9% as the hotel-industry bellwether saw growth in group bookings in the U.S. and foreign travel to Europe, though revenue continued to slide after a spin-off. The company also raised its full-year earnings estimate,

New Mountain Finance Corp. (NMFC) said it will offer about 5.3 million shares. The management investment company plans to use proceeds to acquire units from New Mountain Finance Holdings LLC, of which it has a 34.6% stake. New Mountain Finance Holdings, in turn, plans to use proceeds for new investments, payment of debt and for general corporate purposes.

New York Mortgage Trust Inc. (NYMT) plans to offer about 3.8 million shares as the real estate investment trust looks to raise funds to acquire mortgage-related and financial assets.

Regis Corp. (RGS) has named Daniel Hanrahan to be the hair-salon operator's chief executive.

Ryder System Inc. (R) raised its quarterly dividend by 6.9% as the truck-leasing company seeks to boost shareholder returns.

Sprott Physical Silver Trust (PSLV) said it will use proceeds from its offering to acquire physical silver bullion but didn't detail the number of units it planned to offer.

Texas Industries Inc. (TXI) swung to a fiscal fourth-quarter profit, breaking a 10-quarter streak of losses, as the construction-materials company recorded improved margins and gains from asset sales and a joint-venture agreement.

-Write to Mia Lamar at mia.lamar@dowjones.com