Chief Compliance Officer

0001104659-18-009510.txt : 20180214 0001104659-18-009510.hdr.sgml : 20180214 20180214111209 ACCESSION NUMBER: 0001104659-18-009510 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180214 DATE AS OF CHANGE: 20180214 EFFECTIVENESS DATE: 20180214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Portolan Capital Management, LLC CENTRAL INDEX KEY: 0001350290 IRS NUMBER: 201926326 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-11602 FILM NUMBER: 18608932 BUSINESS ADDRESS: STREET 1: 2 INTERNATIONAL PLACE, 26TH FLOOR CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 617.753.6400 MAIL ADDRESS: STREET 1: 2 INTERNATIONAL PLACE, 26TH FLOOR CITY: BOSTON STATE: MA ZIP: 02110 13F-HR 1 primary_doc.xml 13F-HR LIVE 0001350290 XXXXXXXX 12-31-2017 12-31-2017 false Portolan Capital Management, LLC

2 International Place, 26th Floor Boston MA 02110

13F HOLDINGS REPORT 028-11602 N Christopher Nardone Chief Compliance Officer 617-753-6400 /s/Christopher Nardone Boston MA 02-14-2018 0 116 913142 false INFORMATION TABLE 2 a18-5958_1informationtable.xml INFORMATION TABLE AARON'S, INC. COM 002535300 11570 290340 SH SOLE 290340 0 0 ABIOMED, INC. COM 003654100 4205 22440 SH SOLE 22440 0 0 ABRAXAS PETROLEUM CORPORATION COM 003830106 15700 6382145 SH SOLE 6382145 0 0 ADOBE SYSTEMS, INC. COM 00724F101 2420 13810 SH SOLE 13810 0 0 ALCOA CORPORATION COM 013872106 1965 36468 SH SOLE 36468 0 0 ALPHABET, INC. COM 02079K107 11687 11169 SH SOLE 11169 0 0 ALTISOURCE RESIDENTIAL CORPORATION COM 02153W100 3866 325935 SH SOLE 325935 0 0 AMBARELLA, INC. COM G037AX101 6476 110229 SH SOLE 110229 0 0 AMERICAN AXLE & MFG HOLDINGS, INC. COM 024061103 4398 258259 SH SOLE 258259 0 0 ANIKA THERAPEUTICS, INC. COM 035255108 785 14556 SH SOLE 14556 0 0 APPTIO, INC. COM 03835C108 17827 757945 SH SOLE 757945 0 0 ARDMORE SHIPPING CORPORATION COM Y0207T100 2419 302336 SH SOLE 302336 0 0 ATTUNITY LTD COM M15332121 4690 671898 SH SOLE 671898 0 0 AXON ENTERPRISE, INC. COM 05464C101 5502 207632 SH SOLE 207632 0 0 AXT, INC. COM 00246W103 5372 617482 SH SOLE 617482 0 0 BILL BARRETT CORPORATION COM 06846N104 1350 263091 SH SOLE 263091 0 0 BIO-RAD LABORATORIES, INC. COM 090572207 16487 69080 SH SOLE 69080 0 0 BIOSCRIP, INC. COM 09069N108 1054 362323 SH SOLE 362323 0 0 BOINGO WIRELESS, INC. COM 09739C102 27503 1222366 SH SOLE 1222366 0 0 BOX, INC. COM 10316T104 14025 664043 SH SOLE 664043 0 0 CALAVO GROWERS, INC. COM 128246105 20658 244758 SH SOLE 244758 0 0 CALLIDUS SOFTWARE, INC. COM 13123E500 21117 737068 SH SOLE 737068 0 0 CAMBREX CORPORATION COM 132011107 6954 144881 SH SOLE 144881 0 0 CARBONITE, INC. COM 141337105 24160 962569 SH SOLE 962569 0 0 CARE.COM, INC. COM 141633107 30067 1666711 SH SOLE 1666711 0 0 CARROLS RESTAURANT GROUP, INC. COM 14574X104 625 51431 SH SOLE 51431 0 0 CASELLA WASTE SYSTEMS, INC. COM 147448104 23468 1019449 SH SOLE 1019449 0 0 CENTRAL GARDEN & PET COMPANY COM 153527106 8325 213913 SH SOLE 213913 0 0 COMERICA INCORPORATED COM 200340107 3653 42085 SH SOLE 42085 0 0 CONNS, INC. COM 208242107 5196 146155 SH SOLE 146155 0 0 COOPER TIRE & RUBBER CO. COM 216831107 3731 105548 SH SOLE 105548 0 0 COOPER-STANDARD HOLDINGS, INC. COM 21676P103 5959 48642 SH SOLE 48642 0 0 COSTAMARE, INC. COM Y1771G102 1560 270356 SH SOLE 270356 0 0 COTT CORP. COM 22163N106 9754 585478 SH SOLE 585478 0 0 COVENANT TRANSPORTATION GROUP, INC. COM 22284P105 5633 196052 SH SOLE 196052 0 0 DASEKE, INC. COM 23753F107 21457 1501564 SH SOLE 1501564 0 0 DEVON ENERGY CORPORATION COM 25179M103 8626 208350 SH SOLE 208350 0 0 EARTHSTONE ENERGY, INC. COM 27032D304 4423 416046 SH SOLE 416046 0 0 EBIX, INC. COM 278715206 15231 192183 SH SOLE 192183 0 0 ECHO GLOBAL LOGISTICS, INC. COM 27875T101 1003 35826 SH SOLE 35826 0 0 ELECTRONIC ARTS COM 285512109 1338 12733 SH SOLE 12733 0 0 EMCORE CORPORATION COM 290846203 4343 673364 SH SOLE 673364 0 0 EURONET WORLDWIDE, INC. COM 298736109 12415 147319 SH SOLE 147319 0 0 EXTRACTION OIL & GAS, INC. COM 30227M105 17417 1217108 SH SOLE 1217108 0 0 FABRINET COM G3323L100 2628 91584 SH SOLE 91584 0 0 FACEBOOK, INC. COM 30303M102 8107 45942 SH SOLE 45942 0 0 FARMERS BROTHERS CO. COM 307675108 4760 148041 SH SOLE 148041 0 0 FIFTH THIRD BANCORP COM 316773100 7144 235465 SH SOLE 235465 0 0 FIVE9, INC. COM 338307101 924 37128 SH SOLE 37128 0 0 GENESCO, INC. COM 371532102 1232 37914 SH SOLE 37914 0 0 GODADDY, INC. COM 380237107 12832 255202 SH SOLE 255202 0 0 GROUPON, INC. COM 399473107 12933 2535885 SH SOLE 2535885 0 0 GULFPORT ENERGY CORPORATION COM 402635304 9865 773105 SH SOLE 773105 0 0 HORTONWORKS, INC. COM 440894103 22223 1105077 SH SOLE 1105077 0 0 HUBSPOT, INC. COM 443573100 1095 12390 SH SOLE 12390 0 0 HUDSON TECHNOLOGIES, INC. COM 444144109 5357 882482 SH SOLE 882482 0 0 INPHI CORPORATION COM 45772F107 491 13409 SH SOLE 13409 0 0 INSTRUCTURE, INC. COM 45781U103 5261 158952 SH SOLE 158952 0 0 INTERNAP CORPORATION COM 45885A409 17517 1115007 SH SOLE 1115007 0 0 J B HUNT TRANSPORT SERVICES, INC. COM 445658107 2570 22350 SH SOLE 22350 0 0 KAPSTONE PAPER AND PACKAGING CORPORATION COM 48562P103 7459 328730 SH SOLE 328730 0 0 KEMET CORPORATION COM 488360207 7961 528626 SH SOLE 528626 0 0 KNIGHT-SWIFT TRANSPORTATION HOLDINGS, INC. COM 499049104 4617 105612 SH SOLE 105612 0 0 KVH INDUSTRIES, INC. COM 482738101 1668 161146 SH SOLE 161146 0 0 LENDINGTREE, INC. COM 52603B107 7079 20793 SH SOLE 20793 0 0 LKQ CORPORATION COM 501889208 5240 128846 SH SOLE 128846 0 0 MACOM TECHNOLOGY SOLUTIONS COM 55405Y100 1167 35878 SH SOLE 35878 0 0 MATCH GROUP, INC. COM 57665R106 15006 479261 SH SOLE 479261 0 0 MIMECAST LIMITED COM G14838109 3584 125014 SH SOLE 125014 0 0 MINDBODY, INC. COM 60255W105 683 22442 SH SOLE 22442 0 0 NEVRO CORP. COM 64157F103 2301 33335 SH SOLE 33335 0 0 NEW RELIC, INC. COM 64829B100 1129 19535 SH SOLE 19535 0 0 NOMAD FOODS LIMITED COM G6564A105 14636 865533 SH SOLE 865533 0 0 NUANCE COMMUNICATIONS, INC. COM 67020Y100 3730 228153 SH SOLE 228153 0 0 NUTANIX, INC. COM 67059N108 23583 668450 SH SOLE 668450 0 0 OCLARO, INC. COM 67555N206 1829 271438 SH SOLE 271438 0 0 ON DECK CAPITAL, INC. COM 682163100 12621 2198826 SH SOLE 2198826 0 0 ORION ENGINEERED CARBONS S.A. CMN COM L72967109 4852 189520 SH SOLE 189520 0 0 PACKAGING CORPORATION OF AMERICA COM 695156109 1192 9888 SH SOLE 9888 0 0 PAYPAL HOLDINGS, INC. COM 70450Y103 2284 31020 SH SOLE 31020 0 0 PENSARE ACQUISITION CORP. OTHER 70957E204 2873 278414 SH SOLE 278414 0 0 PITNEY-BOWES, INC. COM 724479100 6304 563848 SH SOLE 563848 0 0 PREFERRED BANK COM 740367404 3281 55826 SH SOLE 55826 0 0 PRIMO WATER CORPORATION COM 74165N105 13839 1100919 SH SOLE 1100919 0 0 QAD, INC. COM 74727D306 7413 190801 SH SOLE 190801 0 0 QUALYS, INC. COM 74758T303 11772 198346 SH SOLE 198346 0 0 QUANTUM CORPORATION COM 747906501 6183 1098137 SH SOLE 1098137 0 0 RAPID7, INC. COM 753422104 7340 393370 SH SOLE 393370 0 0 RAYONIER ADVANCED MATERIALS, INC. COM 75508B104 4563 223127 SH SOLE 223127 0 0 REALPAGE, INC. COM 75606N109 5870 132495 SH SOLE 132495 0 0 RED LION HOTELS CORPORATION COM 756764106 5927 601705 SH SOLE 601705 0 0 RESOLUTE ENERGY CORPORATION COM 76116A306 9652 306704 SH SOLE 306704 0 0 RH COM 74967X103 900 10437 SH SOLE 10437 0 0 RINGCENTRAL, INC. COM 76680R206 2744 56693 SH SOLE 56693 0 0 RYERSON HOLDING CORPORATION COM 783754104 6914 664826 SH SOLE 664826 0 0 SCORPIO TANKERS, INC. COM Y7542C106 5222 1712247 SH SOLE 1712247 0 0 SKECHERS USA, INC. COM 830566105 19204 507517 SH SOLE 507517 0 0 SLM CORPORATION COM 78442P106 29392 2601061 SH SOLE 2601061 0 0 SPORTSMANS WAREHOUSE HOLDINGS, INC. COM 84920Y106 2856 432030 SH SOLE 432030 0 0 STAMPS.COM, INC. COM 852857200 10557 56152 SH SOLE 56152 0 0 SVB FINANCIAL GROUP COM 78486Q101 4673 19988 SH SOLE 19988 0 0 SYSTEMAX, INC. COM 871851101 7934 238470 SH SOLE 238470 0 0 TRITON INTERNATIONAL LIMITED COM G9078F107 3615 96519 SH SOLE 96519 0 0 TUESDAY MORNING CORPORATION COM 899035505 2404 874289 SH SOLE 874289 0 0 U.S. AUTO PARTS NETWORK, INC. COM 90343C100 5080 2016023 SH SOLE 2016023 0 0 UNITED THERAPEUTICS CORPORATION COM 91307C102 5064 34227 SH SOLE 34227 0 0 UNIVAR, INC. COM 91336L107 7498 242196 SH SOLE 242196 0 0 USA TRUCK, INC. COM 902925106 7644 421597 SH SOLE 421597 0 0 VIASAT, INC. COM 92552V100 2940 39279 SH SOLE 39279 0 0 VIRTUSA CORPORATION COM 92827P102 5149 116806 SH SOLE 116806 0 0 VOYA FINANCIAL, INC. COM 929089100 7669 155016 SH SOLE 155016 0 0 WESTROCK COMPANY COM 96145D105 6413 101456 SH SOLE 101456 0 0 WHITING PETROLEUM CORPORATION COM 966387409 16129 609094 SH SOLE 609094 0 0 WINTRUST FINANCIAL CORPORATION COM 97650W108 3963 48115 SH SOLE 48115 0 0 WIX .COM LTD. COM M98068105 5968 103701 SH SOLE 103701 0 0 YELP, INC. COM 985817105 4222 100629 SH SOLE 100629 0 0