0001140361-15-019630.txt : 20150514 0001140361-15-019630.hdr.sgml : 20150514 20150514142356 ACCESSION NUMBER: 0001140361-15-019630 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20150331 FILED AS OF DATE: 20150514 DATE AS OF CHANGE: 20150514 EFFECTIVENESS DATE: 20150514 FILER: COMPANY DATA: COMPANY CONFORMED NAME: AlphaOne Investment Services, LLC CENTRAL INDEX KEY: 0001482390 IRS NUMBER: 264010368 STATE OF INCORPORATION: DE FISCAL YEAR END: 1209 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-13713 FILM NUMBER: 15862052 BUSINESS ADDRESS: STREET 1: 789 E LANCASTER AVE SUITE 120 CITY: VILLANOVA STATE: PA ZIP: 19085 BUSINESS PHONE: 267-597-3849 MAIL ADDRESS: STREET 1: 789 E LANCASTER AVE SUITE 120 CITY: VILLANOVA STATE: PA ZIP: 19085 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001482390 XXXXXXXX 03-31-2015 03-31-2015 AlphaOne Investment Services, LLC

789 E LANCASTER AVE SUITE 120 VILLANOVA PA 19085

13F HOLDINGS REPORT 028-13713 N Donald O'Hara 267-597-3849 /s/Donald O'Hara Villanova PA 05-14-2015 0 104 271039 false INFORMATION TABLE 2 form13fInfoTable.xml ALLSCRIPTS HEALTHCARE SOLUTIONS INC COM 01988P108 129 10750 SH SOLE 0 0 0 10750 ALTRA INDUSTRIAL MOTION CORP COM 02208R106 1567 56705 SH SOLE 0 56125 0 580 AMAG PHARMACEUTICALS INC COM 00163U106 6636 121402 SH SOLE 0 113341 0 8061 AMBARELLA INC SHS G037AX101 1893 25004 SH SOLE 0 24794 0 210 AMC NETWORKS INC CL A 00164V103 3671 47900 SH SOLE 0 47900 0 0 APPLE INC COM 037833100 6584 52910 SH SOLE 0 52910 0 0 ARIAD PHARMACEUTICALS INC COM 04033A100 112 13650 SH SOLE 0 0 0 13650 AVENUE FINANCIAL HOLDINGS INC COM 05358K102 375 30000 SH SOLE 0 30000 0 0 AZZ INC COM 002474104 3482 74731 SH SOLE 0 74411 0 320 BANNER CORP COM NEW 06652V208 4140 90187 SH SOLE 0 90187 0 0 BRYN MAWR BANK COM 117665109 3823 125727 SH SOLE 0 125237 0 490 CALAMP CORP COM 128126109 3867 238857 SH SOLE 0 237747 0 1110 CALLON PETROLEUM CO COM 13123X102 1826 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