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.

Medimmune Inc.

Bogdan Dziurzynski, vice president, exercised an option for 157,880 shares of common at between $7.38 and $32.19 each Jan. 29 and sold 40,400 shares for between $49.37 and $50.76 each Jan. 29.

David P. Wright, divisional officer, exercised an option for 13,500 shares of common at $6.25 each Jan. 29 and sold them for $49.76 each Jan. 29. He no longer holds shares in the company.

Insider Trading is written by CDA/Investnet of Rockville.

Pub Date: 3/08/99