Tellabs Inc, St. Jude Medical, Alcatel Lucent, Zynga, Berkshire Hills Bancorp, Groupon, Nexstar Broadcasting Group and ArcelorMittal are among the companies whose shares are moving in pre-market trading Friday.

Tellabs Inc. (TLAB) stock rallied 38.98 percent to $4.10 in pre-market trading. The company announced Thursday that its Board of Directors declared a special cash dividend of $1.00 per share payable Dec. 21 to stockholders of record as of the close of business Dec. 14.

St. Jude Medical Inc. (STJ) stock surged 2.34 percent to $34.48 in pre-market trading. The company announced Thursday that its Board of Directors had authorized a share repurchase of up to $1 billion of its outstanding common stock.

Alcatel Lucent SA (ALU) stock surged 3.54 percent to $1.17 in pre-market trading. The stock has a 52-week low of $0.91, a 52-week high of $2.66 and $2.56 billion in market capitalization.

Zynga Inc. (ZNGA) stock tumbled 10.31 percent to $2.35 in pre-market trading. Facebook and Zynga disclosed in separate filings Thursday that they had amended their developer agreement to become less attached to each other.

Berkshire Hills Bancorp, Inc. (BHLB) stock plunged 4.75 percent to $22.08 in pre-market trading. The stock has a 52-week low of $18.75, a 52-week high of $24.49 and $577.46 million in market capitalization.

Groupon Inc. (GRPN) stock plunged 4.41 percent to $4.34 in pre-market trading. Andrew Mason would remain Chief Executive Officer of Groupon, a company spokesman said Thursday after the company's board met to debate the performance of the daily deal company's co-founder, Reuters reported. On Wednesday, Mason said that directors would question his suitability as the company had lost almost four-fifths of its market value since debuting in 2011.

Nexstar Broadcasting Group Inc. (NXST) stock declined 2.38 percent to $9.45 in pre-market trading.

ArcelorMittal (MT) stock declined 1.11 percent to $15.15 in pre-market trading. The stock has a 52-week low of $13.28, a 52-week high of $23.62 and $23.75 billion in market capitalization.