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.

AlliedSignal Inc.

Frederick M. Poses, president, exercised an option for 100,000 shares of common at $17.18 each April 16 and sold them for $57 each April 16 and now directly and indirectly holds 44,181 common.

Donald J. Redlinger, vice president, exercised an option for 50,000 shares of common at $17.18 each April 16 and sold them at $57.50 each April 16 and now directly and indirectly holds 17,001 common.

General Motors Corp.

Richard M. Donnelly, no longer required to file as an insider, exercised an option for 12,041 shares of common at $53.76 each April 19 and sold them at $90.10 each April 19 and now directly and/or indirectly holds 15,063 common and 3,928 Class H common.

, Mid-Atlantic Rlty Trust

Marc Paul Blum, director, indirectly purchased 49,900 shares of share beneficial interest at $10 each April 5 and now indirectly holds 167,581 shares beneficial interest.

Insider Trading is written by CDA/Investnet of Rockville.

Pub Date: 5/17/99