Below are insider transactions of 1,000 shares or more for publicly held companies based in Maryland or having substantial operations here. Insiders are officers, directors or owners of 10 percent or more of a corporation's stock.

Black & Decker Corp.

Frederik B. Vandenbergh, vice president, purchased 2,000 shares of common at $46 each Sept. 3 and now directly holds 3,500 common.

Harbor Federal Bancorp

Robert A. Williams, president, exercised an option for 1,000 shares of common at an unreported price Sept. 10 and now directly and indirectly holds 54,246 common.

General Motors

John C. Onoda, no longer required to file as an insider, exercised an option for 2,711 shares of common at $50.41 each Sept. 4. To cover expenses of the transaction Onoda turned in 885 of them for $56.44 each Sept. 4 and sold 1,720 shares in the open market at $56.44 each Sept. 4 and now directly and indirectly holds 2,454 common.

Guilford Phar. Inc.

Nicholas Landekic, vice president, exercised an option for 9,375 shares of common at $3.33 each Sept. 23 and now directly and indirectly holds 21,612 common.

W. Leigh Thompson,director, purchased 10,000 shares of common at $14.83 each Sept. 30 and now directly and indirectly holds 11,705 common.

Micros Systems Inc.

Thomas Paul Armstrong, vice president, sold 1,668 shares of common at $28.31 each Sept. 18 and now directly holds 15,000 common.

Insider Trading is written by CDA/Investnet of Fort Lauderdale, Fla.

Pub Date: 10/26/98