Portolan Capital Management 13F-HR Quarterly holdings report by institutional manager

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL

OMB Number:		3235-0006
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COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
1-800-FLOWERS.COM	COM	68243Q106	2,327	295,313	SH		SOLE		295,313	0	0
8X8, INC.	COM	282914100	16,780	1,667,996	SH		SOLE		1,667,996	0	0
AARON RENTS, INC,	COM	002535300	8,660	345,001	SH		SOLE		345,001	0	0
ABIOMED, INC,	COM	003654100	7,258	76,550	SH		SOLE		76,550	0	0
ADOBE SYSTEMS, INC,	COM	00724F101	2,733	29,136	SH		SOLE		29,136	0	0
ADVANCE AUTO PARTS, INC.	COM	00751Y106	4,955	30,902	SH		SOLE		30,902	0	0
AGIOS PHARMACEUTICALS, INC.	COM	00847X104	1,729	42,589	SH		SOLE		42,589	0	0
AKAMAI TECHNOLOGIES, INC.	COM	00971T101	7,138	128,442	SH		SOLE		128,442	0	0
ALLIANCE DATA SYSTEMS CORPORATION	COM	018581108	3,995	18,161	SH		SOLE		18,161	0	0
ALLY FINANCIAL, INC.	COM	02005N100	5,261	281,035	SH		SOLE		281,035	0	0
ALPHABET, INC.	COM	02079K107	24,381	32,728	SH		SOLE		32,728	0	0
ANIKA THERAPEUTICS, INC.	COM	035255108	5,856	130,939	SH		SOLE		130,939	0	0
APIGEE CORPORATION	COM	03765N108	4,394	528,754	SH		SOLE		528,754	0	0
APPLIED OPTOELECTRONICS, INC.	COM	03823U102	8,076	541,679	SH		SOLE		541,679	0	0
AUTOBYTEL, INC.	COM	05275N205	2,782	160,255	SH		SOLE		160,255	0	0
BAIDU, INC.	COM	056752108	1,430	7,494	SH		SOLE		7,494	0	0
BIO-RAD LABORATORIES, INC.	COM	090572207	10,679	78,108	SH		SOLE		78,108	0	0
BLUEBIRD BIO, INC.	COM	09609G100	2,723	64,065	SH		SOLE		64,065	0	0
BOTTOMLINE TECHNOLOGIES, INC.	COM	101388106	8,371	274,544	SH		SOLE		274,544	0	0
BRAVO BRIO RESTAURANT GROUP, INC.	COM	10567B109	4,597	593,201	SH		SOLE		593,201	0	0
BROADSOFT, INC.	COM	11133B409	6,649	164,786	SH		SOLE		164,786	0	0
BROOKDALE SENIOR LIVING, INC.	COM	112463104	16,302	1,026,544	SH		SOLE		1,026,544	0	0
CALLIDUS SOFTWARE, INC.	COM	13123E500	22,448	1,345,802	SH		SOLE		1,345,802	0	0
CAPITAL SENIOR LIVING CORPORATION	COM	140475104	15,233	822,506	SH		SOLE		822,506	0	0
CARE.COM, INC.	COM	141633107	6,694	1,088,517	SH		SOLE		1,088,517	0	0
CARROLS RESTAURANT GROUP, INC.	COM	14574X104	13,449	931,377	SH		SOLE		931,377	0	0
CASELLA WASTE SYSTEMS, INC.	COM	147448104	24,932	3,721,221	SH		SOLE		3,721,221	0	0
CEMPRA, INC.	COM	15130J109	3,420	195,183	SH		SOLE		195,183	0	0
CERNER CORPORATION	COM	156782104	6,980	131,793	SH		SOLE		131,793	0	0
CHECK POINT SOFTWARE TECH. LTD.	COM	M22465104	2,744	31,369	SH		SOLE		31,369	0	0
COGNIZANT TECHNOLOGY SOLUTIONS CORPORATION	COM	192446102	3,512	56,011	SH		SOLE		56,011	0	0
COMSCORE, INC.	COM	20564W105	1,231	40,978	SH		SOLE		40,978	0	0
CONFORMIS, INC.	COM	20717E101	4,230	393,494	SH		SOLE		393,494	0	0
CONTAINER STORE GROUP, INC.	COM	210751103	2,512	427,951	SH		SOLE		427,951	0	0
COOPER TIRE & RUBBER CO.	COM	216831107	11,560	312,274	SH		SOLE		312,274	0	0
COVISINT CORPORATION	COM	22357R103	1,986	992,908	SH		SOLE		992,908	0	0
CPI CARD GROUP, INC.	COM	12634H101	1,571	190,645	SH		SOLE		190,645	0	0
CRYOLIFE, INC.	COM	228903100	4,484	417,125	SH		SOLE		417,125	0	0
DEL TACO RESTAURANTS, INC.	COM	245496104	1,260	122,014	SH		SOLE		122,014	0	0
DELPHI AUTOMOTIVE PLC	COM	G27823106	6,223	82,953	SH		SOLE		82,953	0	0
DESTINATION XL GROUP, INC.	COM	25065K104	8,329	1,611,081	SH		SOLE		1,611,081	0	0
EL POLLO LOCO HOLDINGS, INC.	COM	268603107	4,439	332,785	SH		SOLE		332,785	0	0
ELECTRONIC ARTS	COM	285512109	12,173	184,129	SH		SOLE		184,129	0	0
ENCORE CAPITAL GROUP, INC.	COM	292554102	5,724	222,395	SH		SOLE		222,395	0	0
EURONET WORLDWIDE, INC.	COM	298736109	21,590	291,318	SH		SOLE		291,318	0	0
EXPEDIA, INC.	COM	30212P303	2,144	19,881	SH		SOLE		19,881	0	0
FACEBOOK, INC.	COM	30303M102	7,497	65,708	SH		SOLE		65,708	0	0
FERROGLOBE PLC	COM	G33856108	1,845	209,392	SH		SOLE		209,392	0	0
FIESTA RESTAURANT GROUP, INC.	COM	31660B101	7,572	230,990	SH		SOLE		230,990	0	0
FIVE STAR QUALITY CARE, INC.	COM	33832D106	5,221	2,279,883	SH		SOLE		2,279,883	0	0
FIVE9, INC.	COM	338307101	3,605	405,471	SH		SOLE		405,471	0	0
FLAMEL TECHNOLOGIES	COM	338488109	8,084	732,234	SH		SOLE		732,234	0	0
GLAUKOS CORPORATION	COM	377322102	2,238	132,711	SH		SOLE		132,711	0	0
GODADDY.COM, INC.	COM	380237107	2,608	80,677	SH		SOLE		80,677	0	0
GROUPON, INC.	COM	399473107	8,180	2,050,107	SH		SOLE		2,050,107	0	0
GUIDANCE SOFTWARE, INC.	COM	401692108	993	231,011	SH		SOLE		231,011	0	0
HERSHA HOSPITALITY TRUST	COM	427825500	3,060	143,395	SH		SOLE		143,395	0	0
HUBSPOT, INC.	COM	443573100	4,261	97,682	SH		SOLE		97,682	0	0
INCONTACT, INC.	COM	45336E109	29,724	3,343,585	SH		SOLE		3,343,585	0	0
INFINERA CORPORATION	COM	45667G103	4,985	310,416	SH		SOLE		310,416	0	0
INPHI CORPORATION	COM	45772F107	5,591	167,709	SH		SOLE		167,709	0	0
INSTRUCTURE, INC.	COM	45781U103	2,023	112,787	SH		SOLE		112,787	0	0
INTERFACE, INC.	COM	458665304	1,841	99,298	SH		SOLE		99,298	0	0
J2 GLOBAL, INC.	COM	48123V102	5,454	88,566	SH		SOLE		88,566	0	0
KONA GRILL, INC.	COM	50047H201	3,442	265,755	SH		SOLE		265,755	0	0
LIONBRIDGE TECHNOLOGIES, INC.	COM	536252109	5,512	1,089,247	SH		SOLE		1,089,247	0	0
LUMENTUM HOLDINGS, INC.	COM	55024U109	3,022	112,055	SH		SOLE		112,055	0	0
MARKETO, INC.	COM	57063L107	8,956	457,658	SH		SOLE		457,658	0	0
MATCH GROUP, INC.	COM	57665R106	8,353	755,239	SH		SOLE		755,239	0	0
MCKESSON CORPORATION	COM	58155Q103	5,373	34,170	SH		SOLE		34,170	0	0
MERCER INTERNATIONAL, INC.	COM	588056101	4,841	512,260	SH		SOLE		512,260	0	0
MERRIMACK PHARMACEUTICALS, INC.	COM	590328100	1,900	227,051	SH		SOLE		227,051	0	0
MINERALS TECHNOLOGIES, INC.	COM	603158106	3,704	65,156	SH		SOLE		65,156	0	0
MODEL N, INC.	COM	607525102	6,634	615,925	SH		SOLE		615,925	0	0
MYRIAD GENETICS, INC.	COM	62855J104	7,545	201,572	SH		SOLE		201,572	0	0
NATERA, INC.	COM	632307104	2,454	257,787	SH		SOLE		257,787	0	0
NEWS CORPORATION	COM	65249B109	13,676	1,070,970	SH		SOLE		1,070,970	0	0
ORION ENGINEERED CARBONS	COM	L72967109	1,876	132,887	SH		SOLE		132,887	0	0
OVASCIENCE, INC.	COM	69014Q101	3,723	392,356	SH		SOLE		392,356	0	0
PERRIGO CO PLC	COM	G97822103	1,108	8,660	SH		SOLE		8,660	0	0
PREMIER, INC.	COM	74051N102	17,378	520,918	SH		SOLE		520,918	0	0
QAD, INC.	COM	74727D306	1,758	82,750	SH		SOLE		82,750	0	0
QUALYS, INC.	COM	74758T303	4,115	162,593	SH		SOLE		162,593	0	0
RACKSPACE HOSTING, INC.	COM	750086100	7,901	365,945	SH		SOLE		365,945	0	0
RELYPSA, INC.	COM	759531106	3,314	244,593	SH		SOLE		244,593	0	0
RENT-A-CENTER, INC.	COM	76009N100	10,682	673,936	SH		SOLE		673,936	0	0
RINGCENTRAL, INC.	COM	76680R206	10,609	673,616	SH		SOLE		673,616	0	0
SCIQUEST, INC.	COM	80908T101	13,604	980,140	SH		SOLE		980,140	0	0
SEQUENOM, INC.	COM	817337405	3,788	2,686,304	SH		SOLE		2,686,304	0	0
SERES THERAPEUTICS, INC.	COM	81750R102	3,168	119,276	SH		SOLE		119,276	0	0
SHORETEL, INC.	COM	825211105	2,947	396,142	SH		SOLE		396,142	0	0
SHUTTERFLY, INC.	COM	82568P304	3,762	81,125	SH		SOLE		81,125	0	0
SKECHERS USA, INC.	COM	830566105	3,438	112,922	SH		SOLE		112,922	0	0
SLM CORPORATION	COM	78442P106	3,027	475,948	SH		SOLE		475,948	0	0
SPROUTS FMRS MKT, INC.	COM	85208M102	7,143	245,979	SH		SOLE		245,979	0	0
SPS COMMERCE	COM	78463M107	2,170	50,547	SH		SOLE		50,547	0	0
STAMPS COM, INC.	COM	852857200	22,938	215,830	SH		SOLE		215,830	0	0
STERIS PLC	COM	G84720104	7,243	101,942	SH		SOLE		101,942	0	0
SUPERNUS PHARMACEUTICALS, INC.	COM	868459108	3,979	260,921	SH		SOLE		260,921	0	0
THE GOODYEAR TIRE & RUBBER CO.	COM	382550101	15,583	472,495	SH		SOLE		472,495	0	0
TWITTER, INC.	COM	90184L102	4,111	248,378	SH		SOLE		248,378	0	0
UNITED THERAPEUTICS CORPORATION	COM	91307C102	11,636	104,421	SH		SOLE		104,421	0	0
VCA, INC.	COM	918194101	3,258	56,470	SH		SOLE		56,470	0	0
VIRTUSA CORPORATION	COM	92827P102	7,262	193,866	SH		SOLE		193,866	0	0
VONAGE HOLDINGS CORP.	COM	92886T201	4,024	880,583	SH		SOLE		880,583	0	0
WEB.COM GROUP, INC.	COM	94733A104	6,308	318,275	SH		SOLE		318,275	0	0
WILLIS TOWERS WATSON PLC	COM	G96629103	8,422	70,980	SH		SOLE		70,980	0	0
WIX.COM	COM	M98068105	3,960	195,373	SH		SOLE		195,373	0	0
XO GROUP, INC.	COM	983772104	8,040	500,927	SH		SOLE		500,927	0	0
XURA, INC.	COM	98420V107	3,207	163,060	SH		SOLE		163,060	0	0
ZENDESK, INC.	COM	98936J101	5,200	248,430	SH		SOLE		248,430	0	0