[Item 1: Reporting Person - FMR LLC Item 2: (a) [ ] (b) [ ] Item 4: Delaware Item 5: 281,200 Item 6: 0 Item 7: 1,176,960 Item 8: 0 Item 9: 1,176,960 Item 11: 2.021% Item 12: HC Cusip #836034926 Item 1: Reporting Person - Edward C. Johnson 3d Item 2: (a) [ ] (b) [ ] Item 5:]
[JOINT FILING AGREEMENT Dated: February 13, 2015 OBERWEIS ASSET MANAGEMENT, INC. Patrick B. Joyce Executive Vice President JAMES D. OBERWEIS JAMES W. OBERWEIS Page 10 of 10 EX-1 2 v400729_ex99-1.htm JOINT FILING AGREEMENT] [Oberweis Asset Management, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) Not Applicable (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Illinois NUMBER OF 5 SOLE VOTING POWER None SHARES BENEFICIALLY OWNED BY 6 SHARED VOTING POWER None EACH REPORTING PERSON 7 SOLE DISPOSITIVE POWER None WITH 8 SHARED DISPOSITIVE]
