0001144204-15-025897.txt : 20150429 0001144204-15-025897.hdr.sgml : 20150429 20150429154336 ACCESSION NUMBER: 0001144204-15-025897 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20150331 FILED AS OF DATE: 20150429 DATE AS OF CHANGE: 20150429 EFFECTIVENESS DATE: 20150429 FILER: COMPANY DATA: COMPANY CONFORMED NAME: EMERALD ADVISERS INC/PA CENTRAL INDEX KEY: 0001015083 IRS NUMBER: 000000000 STATE OF INCORPORATION: PA FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-05618 FILM NUMBER: 15812174 BUSINESS ADDRESS: STREET 1: 3175 OREGON PIKE CITY: LEOLA STATE: PA ZIP: 17540 BUSINESS PHONE: 717-556-8900 MAIL ADDRESS: STREET 1: 3175 OREGON PIKE CITY: LEOLA STATE: PA ZIP: 17540 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001015083 XXXXXXXX 03-31-2015 03-31-2015 false EMERALD ADVISERS INC/PA

3175 Oregon Pike Leola PA 17540

13F HOLDINGS REPORT 028-05618 N Kenneth G. Mertz II 717-396-1116 /s/ Kenneth G. Mertz II Lancaster PA 04-29-2015 0 343 1992227 INFORMATION TABLE 2 infotable.xml APPLE INC COM 037833100 3346 25630 SH SOLE 25630 0 0 AVALANCHE BIOTECHNOLOGIES INC COM 05337G107 5124 141070 SH SOLE 121600 0 19470 ABAXIS INC COM 002567105 6628 102663 SH SOLE 85883 0 16780 AMERISOURCEBERGEN CORP COM 03073E105 6290 55197 SH SOLE 760 0 54437 ACADIA HEALTHCAREPANY INC COM 00404A109 32081 443349 SH SOLE 352248 0 91101 ACTUA CORP COM 005094107 7020 469598 SH SOLE 20962 0 448636 ADEPT TECHNOLOGY INC COM 006854202 231 36740 SH SOLE 36740 0 0 ADAMAS PHARMACEUTICALS INC COM 00548A106 5652 322631 SH SOLE 264259 0 58372 ALLIANCE DATA SYS CORP COM 018581108 3498 11567 SH SOLE 11038 0 529 AMERICAN EAGLE OUTFITTERS INC. 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