AlphaOne Investment Services as of Dec. 31, 2011
Portfolio Holdings for AlphaOne Investment Services
AlphaOne Investment Services holds 0 positions in its portfolio as reported in the December 2011 quarterly 13F filing
FORM 13F INFORMATION TABLE
As of December 31, 2011
{S} {C} {C} {C} {C} {C} {C} {C}
{C} {C} {C} {C} {C} {C} {C}
MARKET AMOUNT VOTING
TITLE OF VALUE AND TYPE INVESTMENT OTHER AUTHORITY
NAME OF ISSUER CLASS CUSIP X1000 OF SECURITY* DISCRETION MANAGERS SOLE
ADVISORY BOARD CO/THE Common 00762W107 740 9965 Sole 9965
AECOM TECHNOLOGY CORP Common 00766T100 943 45836 Sole 45836
ALTRA HOLDINGS I Common 02208R106 2355 125047 Sole 125047
AMAZON.COM INC Common 023135106 376 2175 Sole 2175
AMER VANGUARD CORP Common 030371108 334 25000 Sole 25000
AMERESCO INC Class A 02361E108 990 72175 Sole 72175
ANALOGIC CORP Common 032657207 875 15267 Sole 15267
ANAREN INC Common 032744104 231 13909 Sole 13909
SMITH A O CORP Common 831865209 1021 25454 Sole 25454
APPLE INC Common 037833100 8029 19825 Sole 19825
AVERY DENNISON CORP Common 053611109 270 9400 Sole 9400
AXCELIS TECHNOLOGIES INC Common 054540109 884 664900 Sole 664900
AXT INC Common 00246W103 2181 523035 Sole 523035
AZZ INC Common 002474104 2836 62403 Sole 62403
BERKSHIRE HILLS BANCORP INC Common 084680107 2707 122000 Sole 122000
BERRY PETROLEUM CO Class A 085789105 858 20407 Sole 20407
BIO-RAD LABORATORIES INC Class A 090572207 514 5349 Sole 5349
BIOMARIN PHARMACEUTICALS INC Common 09061G101 596 17337 Sole 17337
BIOSCRIP INC Common 09069N108 2236 409510 Sole 409510
BOOZ ALLEN HAMILTON HOLDING Class A 099502106 1044 60505 Sole 60505
BRIDGE CAPITAL H Common 108030107 303 29097 Sole 29097
BROOKLINE BANCORP INC Common 11373M107 642 76049 Sole 76049
BRUKER BIOSCIENCES CORP Common 116794108 511 41106 Sole 41106
BRYN MAWR BANK Common 117665109 2448 125595 Sole 125595
CABOT MICROELECTRONICS CORP Common 12709P103 665 14076 Sole 14076
CALAMOS ASSET MANAGEMENT INC Class A 12811R104 3168 253268 Sole 253268
CALGON CARBON CORP Common 129603106 1137 72400 Sole 72400
CAP CITY BANK GROUP Common 139674105 921 96484 Sole 96484
CATALYST HEALTH SOLUTIONS INC Common 14888B103 680 13085 Sole 13085
CAVIUM INC Common 14964U108 704 24749 Sole 24749
CH ROBINSON WORLDWIDE INC Common New 12541W209 598 8563 Sole 8563
CITI TRENDS INC Common 17306X102 1422 161938 Sole 161938
COHERENT INC Common 192479103 948 18140 Sole 18140
COLFAX CORP Common 194014106 1649 57902 Sole 57902
COLUMBIA BANKING SYSTEM INC Common 197236102 2361 122510 Sole 122510
CPI AEROSTRUCTURES INC Common New 125919308 544 46319 Sole 46319
CTPARTNERS EXECUTIVE SEARCH INC Common 22945C105 226 42498 Sole 42498
DAKTRONICS INC Common 234264109 845 88284 Sole 88284
DAWSON GEOPHYSICAL Common 239359102 2965 75000 Sole 75000
DIGITALGLOBE INC Common New 25389M877 700 40919 Sole 40919
DOUGLAS DYNAMICS INC Common 25960R105 1791 122480 Sole 122480
DXP ENTERPRISES INC Common New 233377407 2973 92329 Sole 92329
DYNAMICS RESEARCH CORP Common 268057106 1928 170035 Sole 170035
EINSTEIN NOAH REST GROUP Common 28257U104 1823 115244 Sole 115244
ENCORE BANCSHARES ING Common 29255V201 346 25617 Sole 25617
EQT CORP Common 26884L109 1827 33350 Sole 33350
EVERCORE PARTNERS INC Class A 29977A105 670 25166 Sole 25166
EXPEDITORS INTL WASHINGTON INC Common 302130109 621 15158 Sole 15158
EXPONENT INC Common 30214U102 546 11873 Sole 11873
FINANCIAL INSTITUTIONS INC Common 317585404 2774 171886 Sole 171886
FIRST CONNECTICUT BANCORP INC Common 319850103 1674 128643 Sole 128643
FIRST REPUBLIC BANK/SAN FRANCISCO CA Common 33616C100 624 20384 Sole 20384
FMC CORP Common New 302491303 1084 12600 Sole 12600
FORRESTER RESEARCH INC Common 346563109 2878 84797 Sole 84797
FOSTERCO-A Common 350060109 670 23667 Sole 23667
FREIGHTCAR AMERICA INC Common 357023100 905 43200 Sole 43200
GARTNER INC Common 366651107 946 27196 Sole 27196
GEN-PROBE INC Common 36866T103 1060 17932 Sole 17932
GEORESOURCES INC Common 372476101 2632 89783 Sole 89783
GLU MOBILE INC Common 379890106 7633 2431000 Sole 2431000
GOOGLE INC Class A 38259P508 5910 9150 Sole 9150
GP STRATEGIES CORP Common 36225V104 2961 219657 Sole 219657
GRACO INC Common 384109104 881 21539 Sole 21539
GREAT LAKES DRED GE & DOCK Common 390607109 2262 406851 Sole 406851
HAEMONETICS CORP Common 405024100 806 13166 Sole 13166
HANGER ORTHOPEDEDIC GROUP INC Common New 41043F208 3343 178876 Sole 178876
HARTE-HANKS INC Common 416196103 1722 189400 Sole 189400
HEALTHCARE SERVICES GROUP Common 421906108 649 36684 Sole 36684
HEXCEL CORP Common 428291108 1281 52929 Sole 52929
HIBBETT SPORTS INC Common 428567101 442 9782 Sole 9782
HILL INTERNATIONAL INC Common 431466101 1599 311025 Sole 311025
HMS HOLDINGS CORP Common 40425J101 2309 72195 Sole 72195
HURCO COMPANIES INC Common 447324104 1530 72840 Sole 72840
IBERIABANK CORP Common 450828108 1936 39272 Sole 39272
ICU MEDICAL INC Common 44930G107 960 21323 Sole 21323
IHS INC Class A 451734107 727 8435 Sole 8435
II-VI INC Common 902104108 2200 119825 Sole 119825
INTERACTIVE INTELLIGENCE GROUP Common 45841V109 1948 84993 Sole 84993
INTEVAC INC Common 461148108 714 96500 Sole 96500
IXYS CORP Common 46600W106 2222 205199 Sole 205199
JAGUAR MINING INC Common 47009M103 64 10000 Sole 10000
KBW INC Common 482423100 1020 67215 Sole 67215
KNIGHT TRANSPORTATION INC Common 499064103 2158 137975 Sole 137975
LAM RESEARCH CORP Common 512807108 2342 63250 Sole 63250
LIHUA INTERNATIONAL INC Class A New 532352101 154 32300 Sole 32300
LMI AEROSPACE INC Common 502079106 2391 136254 Sole 136254
LSI CORP Common 502161102 9966 1674950 Sole 1674950
LUMINEX CORP Common 55027E102 1032 48621 Sole 48621
MARTEN TRANSPORT LTD Common 573075108 1786 99269 Sole 99269
MARVELL TECHNOLOGY GROUP LTD ORD G5876H105 4505 325300 Sole 325300
MASTEC INC Common 576323109 568 32695 Sole 32695
MAXIMUS INC Common 577933104 1086 26261 Sole 26261
MB FINANCIAL INC Common 55264U108 801 46817 Sole 46817
MEDTOX SCIENTIFIC Common New 584977201 2630 187179 Sole 187179
MELLANOX TECHNOLOGIES LTD SHS M51363113 2208 67966 Sole 67966
MERIT MEDICAL SYSTEMS INC Common 589889104 2305 172297 Sole 172297
METHODE ELECTRONICS INC Common 591520200 1962 236689 Sole 236689
MICRON TECHNOLOGY INC Common 595112103 8174 1299500 Sole 1299500
MICROSEMI CORP Common 595137100 1221 72882 Sole 72882
MULTI-COLOR CORP Common 625383104 2807 109094 Sole 109094
MWI VETERINARY SUPPLY Common 55402X105 2692 40521 Sole 40521
NATL RESEARCH CORP Common 637372103 3717 95773 Sole 95773
NATURAL GAS SERVICES GROUP INC Common 63886Q109 2769 191512 Sole 191512
NEUSTAR INC Class A 64126X201 1364 39917 Sole 39917
NOVELLUS SYSTEMS INC Common 670008101 6437 155900 Sole 155900
NUANCE COMMUNICATIONS Common 67020Y100 6642 264000 Sole 264000
NVE CORP Common New 629445206 1085 19541 Sole 19541
NXSTAGE MEDICAL Common 67072V103 676 38017 Sole 38017
OCEANFIRST FINANCIAL CORP Common 675234108 2803 214490 Sole 214490
OCZ TECHNOLOGY GROUP INC Common 67086E303 802 121400 Sole 121400
OLD DOMINION FREIGHT LINE Common 679580100 2124 52415 Sole 52415
ON ASSIGNMENT INC Common 682159108 1955 174828 Sole 174828
OSI SYSTEMS INC Common 671044105 949 19452 Sole 19452
PAREXEL INTERNATIONAL CORP Common 699462107 818 39451 Sole 39451
PARK STERLING CORP Common 70086Y105 1250 306314 Sole 306314
PATRIOT COAL CORP Common 70336T104 940 111000 Sole 111000
PATTERSON-UTI ENERGY INC Common 703481101 1244 62243 Sole 62243
PDF SOLUTIONS Common 693282105 891 127853 Sole 127853
PF CHANG'S CHINA BISTRO INC Common 69333Y108 287 9300 Sole 9300
PLX TECHNOLOGY INC Common 693417107 720 250800 Sole 250800
POLYCOM INC Common 73172K104 819 50269 Sole 50269
POWERSHARES DB U DOLL INDX BULL 73936D107 322 14346 Sole 14346
RAVEN INDUSTRIES Common 754212108 2253 36400 Sole 36400
REGAL-BELOIT CORP Common 758750103 790 15509 Sole 15509
RENASANT CORP Common 75970E107 2393 159533 Sole 159533
RIMAGE CORP Common 766721104 2407 213958 Sole 213958
ROCKWOOD HOLDINGS INC Common 774415103 1157 29400 Sole 29400
ROGERS CORP Common 775133101 1130 30666 Sole 30666
ROPER INDUSTRIES INC Common 776696106 1225 14098 Sole 14098
ROVI CORP Common 779376102 517 21034 Sole 21034
RPC INC Common 749660106 4220 231236 Sole 231236
RUE21 INC Common 781295100 977 45242 Sole 45242
SALIX PHARMACEUTICALS INC Common 795435106 749 15645 Sole 15645
SILICON IMAGE INC Common 82705T102 214 45550 Sole 45550
SILICON LABORATORIES INC Common 826919102 8936 205800 Sole 205800
SIRONA DENTAL SYSTEMS INC Common 82966C103 546 12406 Sole 12406
SKECHERS U.S.A. INC Class A 830566105 259 21400 Sole 21400
SKULLCANDY INC Common 83083J104 1025 81891 Sole 81891
SPREADTRUM COMMUNICATI-ADR ADR 849415203 591 28300 Sole 28300
STANDARD PARKING CORP Common 853790103 741 41463 Sole 41463
STERLING BANCORP Common 859158107 1690 195553 Sole 195553
STERLING CONSTRUCTION CO INC Common 859241101 1136 105449 Sole 105449
STIFEL FINANCIAL CORP Common 860630102 267 8330 Sole 8330
TEAM INC Common 878155100 1969 66170 Sole 66170
TECHNE CORP Common 878377100 1095 16048 Sole 16048
TELEFLEX INC Common 879369106 1095 17860 Sole 17860
TERADYNE INC Common 880770102 7598 557450 Sole 557450
TESCO CORP Common 88157K101 721 57076 Sole 57076
TETRA TECH INC Common 88162G103 648 30000 Sole 30000
THERMON GROUP HOLDINGS INC Common 88362T103 2484 141000 Sole 141000
TITAN INTERNATIONAL INC Common 88830M102 264 13550 Sole 13550
TITAN MACHINERY INC Common 88830R101 2089 96134 Sole 96134
UNIT CORP Common 909218109 828 17847 Sole 17847
UNITED THERAPEUTICS CORP Common 91307C102 854 18082 Sole 18082
UNIVERSAL DISPLAY CORP CALL 6/16/2012 35 Common 91347P105 231 300 Sole 300
US PHYSICAL THERAPY INC Common 90337L108 3527 179242 Sole 179242
VALE SA ADR 91912E105 997 46500 Sole 46500
VALUECLICK INC Common 92046N102 746 45800 Sole 45800
VIRGINIA COMMERCE BANCORP Common 92778Q109 2771 358424 Sole 358424
VITRAN CORP INC Common 92850E107 388 67372 Sole 67372
VOCUS INC Common 92858J108 3121 141298 Sole 141298
WALTER ENERGY INC CALL 3/17/2012 70 Call 93317Q905 251 620 Sole 620
WEBSTER FINANCIAL CORP Common 947890109 2525 123847 Sole 123847
WEST COAST BANCORP/OREGON Common New 952145209 2177 139570 Sole 139570
WESTERN DIGITAL CORP Common 958102105 3346 108100 Sole 108100
WINTRUST FINANCIAL CORP Common 97650W108 613 21869 Sole 21869
WRIGHT EXPRESS CORP Common 98233Q105 1303 24014 Sole 24014
WSFS FINANCIAL CORP Common 929328102 2275 63266 Sole 63266
XYRATEX LTD Common G98268108 971 72900 Sole 72900
*All the securities listed within this column are stated as "SH"