Talisman Energy, PetSmart, OPKO, Regal Beloit and Riverbed Technology are big market movers

Associated Press

Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

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Talisman Energy Inc., up 83 cents to $5.12

The energy company confirmed that it is in discussions with Repsol and has been approached by other companies regarding a deal.

OPKO Health Inc., up 68 cents to $8.86

The biotechnology company signed a deal with Pfizer Inc. to develop and sell a long-acting treatment for growth hormone deficiency.

Regal Beloit Corp., up $2.04 to $70.42

The maker of controls for electric motors will buy a power transmissions unit from Emerson Electric Co. for about $1.4 billion.

Nasdaq

PetSmart Inc., up $3.30 to $80.97

The pet supplies retailer said that is being sold to a group of investors led by buyout firm BC Partners for $8.7 billion.

American Realty Capital Properties Inc., down 76 cents to $8.23

The real-estate investment trust's chairman and its CEO resigned as the company faces scrutiny over accounting irregularities.

Riverbed Technology Inc., up $1.57 to $20.31

A private equity firm and a teacher pension will pay about $3.6 billion to take the computer networking equipment maker private.

Tuniu Corp., up 28 cents to $13.58

The online leisure travel company, which operates in China, said it received $148 million in funding from a group of investors.

Broadcom Corp., up 65 cents to $42.29

The communications and networking infrastructure company announced the release of new transceivers with a faster data rate.