Stocks that moved substantially Friday during the abbreviated trading session on the New York Stock Exchange and Nasdaq Stock Market:
Baxter International Inc., up $2.69 at $68.81
The drug and medical device maker is negotiating to buy Swedish medical equipment maker Gambro, The Wall Street Journal reported.
General Motors Co., up 61 cents at $25.21
The automaker plans to buy Ally Financial's operations in Europe, China and Latin America in order to expand its auto loan unit.
Kohlberg Kravis Roberts & Co., up 24 cents at $14.11
The private equity firm plans to buy specialty insurer Alliant Insurance Services Inc. from rival Blackstone Group LP.
Zale Corp., down 18 cents at $5.03
Shares of the jewelry retailer continued to fall after posting a larger-than-expected loss for its fiscal first quarter earlier this week.
TriMas Corp., up 29 cents at $24.04
The manufacturer plans to shutter its Goshen, Ind., plant and lay off all 450 workers there — 10 percent of its total workforce.
Research In Motion Ltd., up $1.40 at $11.66
Shares of the Canadian smartphone maker jumped as investors grew more optimistic about a February launch of its delayed BlackBerry 10 device.
KIT Digital Inc., down $1.33 at 74 cents
The video technology company will restate nearly four years of financial results due to errors and irregularities.
MAP Pharmaceuticals Inc., up $2.60 at $15.42
The U.S. Food and Drug Administration accepted its application for approval to sell its experimental migraine drug, Levadex.