Updated from 6:02 p.m. ET for latest share prices, information about Research In Motion, Xoma. NEW YORK ( TheStreet) -- Shares of Research In Motion ( RIMM) slumped in Tuesday's extended session after Samsung said it's not interested in acquiring the struggling Blackberry maker. James Chung, a spokesperson for Samsung, was quoted by Reuters as saying: "We haven't considered acquiring the firm and are not interested in (buying RIM)." The stock had gained 8% in the regular session to close at $17.47 with volume reaching nearly 60 million, nearly three times the issue's trailing three-month daily average of 21.6 million, following speculation on a blog that Samsung was targeting a deal for Research In Motion. In after-hours action, the shares gave back 97 cents, or 5.6%, to $16.50 on volume of around 650,000.
"My time at Yahoo!, from its founding to the present, has encompassed some of the most exciting and rewarding experiences of my life," Yang said in his letter of resignation, according to a company statement. "As I leave the company I co-founded nearly 17 years ago, I am enthusiastic about the appointment of Scott Thompson as Chief Executive Officer and his ability, along with the entire Yahoo! leadership team, to guide Yahoo! into an exciting and successful future." The news could be a sign that Yahoo! is getting ready to make a deal of some sort. The company has been examining its strategic options for months now, and media reports of what it plans to do run the gamut between the sale of the whole company to the divestiture of certain assets. Scott Thompson was named to the CEO role on Jan. 4, replacing Carol Bartz, who was ousted in September. Thompson previously served as president of PayPal, eBay's ( EBAY) electronic payments business. Yahoo! shares were last quoted at $15.89, up 2.9%, on volume of 3.1 million, according to Nasdaq.com. The stock is down roughly 6% in the past year with revenue growth stalled. Check out TheStreet's quote page for Yahoo! for year-to-date share performance, analyst ratings, earnings estimates and much more. Also active in Tuesday's extended session were Cree ( CREE), whose shares lost more than 5% to $22.10 on volume of more than 800,000 after the LED company disappointed with its quarterly report; and Xoma ( XOMA), whose stock rose more than 8% to $1.82 on volume of less than 20,000 after the company said it's agreed to acquire the U.S. rights to Aceon, a treatment for hypertension, and that it's establishing commercial operations to sell the product. Check out TheStreet's quote page for Cree for year-to-date share performance, analyst ratings, earnings estimates and much more. -- Written by Michael Baron in New York. >To contact the writer of this article, click here: Michael Baron. >To submit a news tip, send an email to: firstname.lastname@example.org