Among the companies with shares expected to actively trade in Monday's session are Apple Inc. (AAPL), ImmunoGen Inc. (IMGN) and Dollar Thrifty Automotive Group Inc. (DTG).

A federal court jury delivered a big win to Apple Inc. (AAPL), finding that Samsung Electronics Co. (SSNHY, 005930.SE) infringed six Apple patents and awarding $1.05 billion in damages in a closely watched case over mobile devices. Shares rose 2.9% to $682.65 premarket.

Elsewhere on the Apple/Samsung decision, analysts at Sydbank said the victory will provide Nokia Corp. (NOK) and Microsoft Corp. (MSFT) with some "much needed momentum in the extremely competitive smartphone market" and give the Windows Phone a better opportunity to establish itself as an alternative to Apple and Google Inc.'s (GOOG) Android. Nokia shares were up 15% to $3.58 premarket; Microsoft shares added 1.2% to $30.91.

ImmunoGen Inc. (IMGN) said updated results from a study by Roche Holding AG (ROG.VX, RHHBY, RO.EB) focused on a breast cancer drug that uses ImmunoGen's technology were positive. Shares jumped 17% to $16.20 in recent premarket trading.

Hertz Global Holdings Inc. (HTZ) agreed to acquire smaller peer Dollar Thrifty Automotive Group Inc. (DTG), a roughly $2.3 billion deal that ends a long takeover saga and will merge two of the largest U.S. car-rental firms. Hertz, the No. 2 domestic car-rental company by fleet size, agreed to pay $87.50 a share in cash to buy Dollar Thrifty, the No. 4 player in the category. Hertz shares were up 14% premarket, while Dollar Thrifty shares jumped 7.3% to $86.92.

 
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Cypress Semiconductor Corp. (CY) boosted its all-cash offer for Ramtron International Corp. (RMTR) to $99 million, a move that comes after the chip company had extended its hostile bid three times. Cypress, which owns 4.7% of Ramtron's shares, is now offering shareholders $2.88 a share, 20 cents more than its previous per-share offering price.

Deltek Inc. (PROJ) agreed to be acquired by Thoma Bravo LLC for about $950 million, a deal that comes about two months after the software company put itself up for auction. Deltek shareholders will receive $13 a share under the deal, a 7.1% discount to its Friday closing price.

Jack Henry & Associates Inc. (JKHY) said its chairman, Michael E. Henry, resigned and has been replaced by Chief Executive John F. Prim.

United Parcel Service Inc. (UPS) expects a charge of $896 million in the third quarter as it restructures pension plans for around 10,200 employees.

Voice-controlled patient-communications-products company Vocera Communications Inc. (VCRA) said it will offer 4.5 million shares of its common stock. The company, which provides services for the health-care industry, said it is offering 1 million shares to raise funds for general corporate purposes, while selling stockholders are offering 3.5 million shares.

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

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