NEW YORK (MarketWatch) — These are stocks making notable moves on Monday.

Gainers

Burger King Worldwide Inc. US:BKW : The hamburger chain is in talks to acquire Tim Hortons Inc. US:THI In addition to tax breaks, Burger King anticipates other benefits to the acquisition.

J.C. Penney Co. Inc. US:JCP : The department store chain surged after its debt costs fell and J.P. Morgan wrote a favorable research note on the retailer.

InterMune Inc. US:ITMN : Swiss-based Roche Holding AG RHHBY, +1.03% RO, +1.72% said Sunday it will pay $8.3 billion for the California biotech firm.

Ann Inc. US:ANN : The women’s retailer is under pressure from an activist investor to sell itself for full price.

Decliners

Regardo Biosciences Inc. US:RGDO : The biopharmaceutical company halted a late-stage trial for a blood-clot drug.

GrubHub Inc. GRUB, +0.61% : The online food-ordering platform filed with the U.S. Securities and Exchange Commission to sell 10 million shares in a secondary offering.

Greif Inc. GEF, -2.68% : The packaging company slashed its earnings outlook for fiscal 2014, citing restructuring charges.

Tickers to Watch

Apple Inc. AAPL, -3.17% : The maker of iPhones and iPads could set a fifth straight record close after closing at a post stock-split record of $101.32 on Friday. Apple announced it will replace defective iPhone 5 batteries

Amazon.com Inc. AMZN, -1.78% : The online retailer has agreed to buy the live-streaming service Twitch Monday.

Goldman Sachs Group Inc. GS, +0.01% : The global investment firm agreed late Friday to a settlement worth more than $1.2 billion over claims it failed to disclose risks on mortgage bonds it sold before the financial crisis.