American Capital Strategies Ltd.

Malon Wilkus, chief executive, bought 1,700 shares between $21.71 and $21.89 each on Jan. 2 and now holds 1,632,542.

Choice Hotels International Inc.

Wayne Wielgus, officer, sold 7,000 shares between $22.77 and $23.21 each on Jan. 2 and now holds no shares.

Gannett Co.

Douglas H. McCorkindale, chief executive, sold 50,000 shares between $75 and $75.20 each from Jan. 6 to Jan. 7 and now holds 512,990.

GTSI Corp.

Linwood A. Lacy Jr., beneficial owner of more than 10 percent, sold 3,000 shares at $15.15 each on Jan. 6 and now holds 1,919,400.

Mills Corp.

James C. Braithwaite, director, sold 10,000 shares at $29.60 each on Dec. 30 and now holds 5,831.

PEC Solutions Inc.

Alan H. Harbitter, chief technology officer, sold 15,000 shares between $30.06 and $30.07 each on Jan. 2 and now holds no shares.

David C. Karlgaard, chief executive, sold 16,000 shares at $31.96 each on Jan. 6 and now holds 6,115,670.

Prime Retail Inc.

Michael W. Reschke, director, sold 251,300 shares at 13 cents each on Dec. 30 and now holds 199,548.

Gary J. Skoien, director, bought 251,300 shares at 13 cents each on Dec. 30 and now holds 255,150.

Trex Co.

Andrew U. Ferrari, officer, director and beneficial owner, sold 5,000 shares between $34.58 and $35.55 each from Jan. 2 to Jan. 6 and now holds 1,672,980.

Robert G. Matheny, president, sold 5,350 shares between $34.78 and $35.37 each on Jan. 6 and now holds 1,710,150.

VSE Corp.

Clifford M. Kendall, director, bought 960 shares at $10.74 each on Dec. 31 and now holds an undetermined number of shares.

Calvin Scott Koonce, director, bought 960 shares at $10.74 each on Dec. 31 and now holds an undetermined number of shares.

Jimmy D. Ross, director, bought 800 shares at $10.74 each on Dec. 31 and now holds an undetermined number of shares.

Bonnie K. Wachtel, director, bought 750 shares at $9.42 each on Dec. 31 and now holds an undetermined number of shares.

-- Thomson Financial