0000892712-15-000698 SC 13G/A 1 20150708 20150708 ENCORE WIRE CORP 0000850460 3350 752274963 DE 1231 SC 13G/A 34 005-45543 15978048 1329 MILLWOOD RD MCKINNEY TX 75069 972-562-9473 1329 MILLWOOD RD MCKINNEY TX 75069 ENCORE WIRE CORP /DE/ 19940420 HEARTLAND ADVISORS INC 0000937394 391078128 WI 1231 SC 13G/A 789 N WATER STREET MILWAUKEE WI 53202 414-347-7777 789 N WATER STREET MILWAUKEE WI 53202 SC 13G/A 1 heartlandencore13ga.htm AMENDMENT NO. 4 TO SCHEDULE 13G