Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Sale
BECKER STEVEN R 10 percent owner 10 percent owner
Common Stock, par value $0.01 per share 140,600 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Sale
BECKER STEVEN R 10 percent owner 10 percent owner
Common Stock, par value $0.01 per share 84,400 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Sale
BECKER STEVEN R 10 percent owner 10 percent owner
Common Stock, par value $0.01 per share 14,900 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 70,000 N/A N/A Sale
SANTONI ROLAND J director director
Common Stock 2,500 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 37,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 37,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 50,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 40,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 20,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 20,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 20,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 20,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 30,000 N/A N/A Purchase
KOPP LEROY C 10 percent owner 10 percent owner
Common Stock 25,000 N/A N/A