Thomson Horstmann & Bryant, Inc."

Thomson Horstmann & Bryant, Inc." as of March 31, 2013

Portfolio Holdings for Thomson Horstmann & Bryant, Inc."

Thomson Horstmann & Bryant, Inc." holds 0 positions in its portfolio as reported in the March 2013 quarterly 13F filing

                FORM 13F INFORMATION TABLE
                                                           Value   SHARES/  SH/ PUT/ INVSTMT    OTHER          VOTING AUTHORITY
        NAME OF ISSUER          TITLE OF CLASS    CUSIP   (x$1000) PRN AMT  PRN CALL DSCRETN   MANAGERS     SOLE    SHARED    NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
{S}                            {C}              {C}       {C}      {C}      {C} {C}  {C}     {C}          {C}      {C}      {C}

1-800-FLOWERS CL-A	COM	68243Q106	3044	612562	SH		Sole		306442		306120
AAON INC	COM	000360206	15223	551768	SH		Sole		221690		330078
ACCELRYS INC	COM	00430U103	7273	745279	SH		Sole		445400		299879
ACETO CORP	COM	004446100	276	25000	SH		Sole		25000
ACTIVE POWER INC	COM	00504W308	5036	1097228	SH		Sole		586129		511099
AEGEAN MARINE	COM	Y0017S102	3803	566845	SH		Sole		467100		99745
AEROPOSTALE	COM	007865108	8428	619720	SH		Sole		361220		258500
AGREE REALTY CORP	COM	008492100	6762	224658	SH		Sole		116900		107758
AIR METHODS	COM	009128307	11414	236618	SH		Sole		95770		140848
ALPHA NATURAL	COM	02076X102	3550	432520	SH		Sole		259920		172600
ALTRA HOLDINGS	COM	02208R106	7405	272075	SH		Sole		157820		114255
AMERICAN PACIFIC	COM	028740108	13720	593720	SH		Sole		426540		167180
AMERICAN WOODMK	COM	030506109	7517	220900	SH		Sole		120900		100000
ANALOGIC CORP	COM	032657207	418	5300	SH		Sole		5300
ANIXTER INT'L INC.	COM	035290105	8369	119698	SH		Sole		57820		61878
ANTARES PHARMA INC	COM	036642106	2797	781545	SH		Sole		393500		388045
ASPEN INSURANCE HOLDINGS LTD	COM	G05384105	929	24100	SH		Sole		24100
ATLAS AIR WORLDWD	COM	049164205	929	22800	SH		Sole		22800
ATRICURE INC	COM	04963C209	7246	914900	SH		Sole		593000		321900
BANK MUTUAL	COM	063750103	8414	1521609	SH		Sole		881944		639665
BIODELIVERY SCIENCES INTL	COM	09060J106	3039	721987	SH		Sole		363368		358619
BIOSCRIP	COM	09069N108	9430	741968	SH		Sole		442700		299268
BLACK DIAMOND INC	COM	09202G101	4101	450188	SH		Sole		123005		327183
BOLT TECHNOLOGY	COM	097698104	11499	658644	SH		Sole		439200		219444
BRIGHTCOVE	COM	10921T101	6386	1028400	SH		Sole		567700		460700
BRUNSWICK CORP	COM	117043109	10302	301079	SH		Sole		149310		151769
CABOT MICROELCT	COM	12709P103	1125	32400	SH		Sole		32400
CACHE INC	COM	127150308	1385	328200	SH		Sole		143500		184700
CALAMP CORP	COM	128126109	6543	596471	SH		Sole		353471		243000
CALLIDUS SFTWR	COM	13123E500	8171	1788159	SH		Sole		982753		805406
CANTEL MED CORP	COM	138098108	2118	70480	SH		Sole		33480		37000
CAPITOL FED. FIN'L	COM	14057J101	8971	743316	SH		Sole		485681		257635
CAPSTEAD MTG	COM	14067e506	1857	144900	SH		Sole		144900
CARBO CERAMICS	COM	140781105	10830	118922	SH		Sole		39240		79682
CARDINAL FINANCIAL	COM	14149F109	4099	225500	SH		Sole		115700		109800
CASTLE (A.M.) & CO.	COM	148411101	987	56400	SH		Sole		56400
CECO ENVIRON	COM	125141101	10877	841235	SH		Sole		590400		250835
CENTENE CORP	COM	15135B101	5035	114350	SH		Sole		54250		60100
CERUS CORP	COM	157085101	4384	992034	SH		Sole		562800		429234
CHEESECAKE FACT	COM	163072101	15081	390601	SH		Sole		222730		167871
CHEFS' WAREHOUSE INC/THE	COM	163086101	5126	277573	SH		Sole		131390		146183
CIRCOR INT'L	COM	17273K109	1045	24600	SH		Sole		24600
CLARCOR INC	COM	179895107	5545	105865	SH		Sole		61230		44635
CLEARWATER PPER	COM	18538R103	853	16200	SH		Sole		16200
COASTAL CONTACTS INC	COM	19044R207	4670	747201	SH		Sole		377600		369601
COHERENT INC COM	COM	192479103	5686	100220	SH		Sole		47470		52750
COLUMBIA SPRTSWR	COM	198516106	1703	29433	SH		Sole		13950		15483
COLUMBUS MCKINN	COM	199333105	11058	574445	SH		Sole		274530		299915
COMMVAULT SYST	COM	204166102	11697	142658	SH		Sole		45370		97288
CONCEPTUS INC	COM	206016107	5410	224045	SH		Sole		128000		96045
CONSOL GRAPHICS	COM	209341106	1822	46600	SH		Sole		22400		24200
CONTANGO OIL^GAS	COM	21075N204	12004	299433	SH		Sole		138450		160983
CSS INDUSTRIES	COM	125906107	2467	95027	SH		Sole		50800		44227
CUBIST PHARMA	COM	229678107	6611	141220	SH		Sole		67080		74140
CULLEN/FROST BK	COM	229899109	8772	140294	SH		Sole		66360		73934
CUTERA INC	COM	232109108	3736	287447	SH		Sole		199415		88032
DARLING INT'L	COM	237266101	27739	1544515	SH		Sole		614752		929763
DATALINK CORP	COM	237934104	6982	578010	SH		Sole		371515		206495
DAWSON GEOPHYS	COM	239359102	918	30600	SH		Sole		30600
DECKERS OUTDOOR	COM	243537107	23976	430540	SH		Sole		168740		261800
DERMA SCIENCES	COM	249827502	4387	363236	SH		Sole		234600		128636
DIGIRAD CORP	COM	253827109	6163	2445704	SH		Sole		1676513		769191
DIME COMM. BANK	COM	253922108	4590	319700	SH		Sole		151900		167800
DRIL-QUIP	COM	262037104	2327	26700	SH		Sole		26700
EHEALTH INC	COM	28238P109	1333	74591	SH		Sole		35679		38912
EMULEX CORP	COM	292475209	3458	529643	SH		Sole		250300		279343
ENRGY XXI BERMDA	COM	G10082140	3909	143623	SH		Sole		70486		73137
ENTROPIC COMMUNICATIONS INC	COM	29384R105	304	75000	SH		Sole		75000
EPL OIL & GAS INC	COM	26883D108	10543	393261	SH		Sole		224900		168361
ESCO TECH	COM	296315104	396	9700	SH		Sole		9700
ETHAN ALLEN	COM	297602104	5016	152380	SH		Sole		73080		79300
EVOLUTION PETRO CORP	COM	30049A107	6572	647519	SH		Sole		452700		194819
EXPRESS INC	COM	30219E103	3253	182700	SH		Sole		86700		96000
EXTREME NETWORKS INC	COM	30226D106	4393	1303700	SH		Sole		729900		573800
FEI COMPANY	COM	30241L109	12471	193211	SH		Sole		67886		125325
FIRST BANCORP INC	COM	31866P102	8706	483409	SH		Sole		231470		251939
FIRST BUSEY CORP	COM	319383105	21975	4808657	SH		Sole		2033248		2775409
FIRST MIDWEST BK	COM	320867104	3174	239040	SH		Sole		113740		125300
FOX CHASE BCP	COM	35137T108	8768	519171	SH		Sole		219350		299821
FRANKLIN ELEC. INC.	COM	353514102	751	22400	SH		Sole		22400
FRANKLIN FINANCIAL CORP/VA	COM	35353C102	3901	213794	SH		Sole		123065		90729
FROZEN FOODS	COM	359360104	3290	2384736	SH		Sole		1656046		728690
FULL HOUSE	COM	359678109	1648	588762	SH		Sole		513290		75472
GENESCO INC	COM	371532102	4267	71016	SH		Sole		39640		31376
GENESEE/WYOMING	COM	371559105	10747	115430	SH		Sole		33430		82000
GLATFELTER	COM	377316104	1028	44000	SH		Sole		44000
GLOBE SPEC MET	COM	37954N206	3788	272150	SH		Sole		161150		111000
GORMAN-RUPP	COM	383082104	6285	209175	SH		Sole		88925		120250
GRAHAM CORP	COM	384556106	11007	444911	SH		Sole		212496		232415
GREEN PLAINS	COM	393222104	408	35700	SH		Sole		35700
GUESS INC	COM	401617105	11507	463434	SH		Sole		271570		191864
GULF ISL FABRCTN	COM	402307102	3564	169249	SH		Sole		123044		46205
GULFPORT ENERGY	COM	402635304	3877	84604	SH		Sole		40330		44274
HANGER INC	COM	41043F208	8753	277629	SH		Sole		154510		123119
HARMONIC INC	COM	413160102	1923	332200	SH		Sole		332200
HEADWATERS INC	COM	42210P102	337	31000	SH		Sole		31000
HFF INC CL A	COM	40418F108	7985	400699	SH		Sole		248954		151745
HMS HOLDINGS	COM	40425j101	6432	236920	SH		Sole		112320		124600
HOME BANCSHARES	COM	436893200	7800	207075	SH		Sole		118646		88429
HOMETRUST BANCSHARES INC	COM	437872104	6160	389897	SH		Sole		201871		188026
HOOKER FURNITURE	COM	439038100	4780	299879	SH		Sole		162082		137797
HOWARD HUGHES CORP	COM	44267D107	1265	15100	SH		Sole		15100
HUDSON TECHNOLOGIES INC	COM	444144109	2222	548815	SH		Sole		277381		271434
HURCO COMPANIES	COM	447324104	11166	410089	SH		Sole		240865		169224
IBERIABANK CORP	COM	450828108	7662	153187	SH		Sole		72600		80587
INNOSPEC INC	COM	45768s105	5201	117475	SH		Sole		55721		61754
INSTEEL INDUST INC	COM	45774w108	15135	927425	SH		Sole		504210		423215
INTEGR SILICON SOL	COM	45812p107	3925	428063	SH		Sole		213846		214217
INTERNET CAPITAL GROUP INC	COM	44928D108	9790	784474	SH		Sole		416100		368374
INTRALINK HLD INC	COM	46118H104	10128	1592600	SH		Sole		800500		792100
ITERIS INC	COM	46564T107	1811	995400	SH		Sole		520400		475000
ITRON INC	COM	465741106	1173	25300	SH		Sole		25300
JACK IN THE BOX	COM	466367109	19315	558424	SH		Sole		331625		226799
JAMBA INC	COM	47023a101	10682	3748111	SH		Sole		1883865		1864246
JOHNSON OUTDOORS	COM	479167108	10490	440021	SH		Sole		270954		169067
JONES LANG LASAL	COM	48020Q107	10244	103055	SH		Sole		59980		43075
KILROY REALTY CORP	COM	49427F108	586	11200	SH		Sole		11200
KRATON PERF POLYMERS	COM	50077C106	3755	160500	SH		Sole		95500		65000
LANDEC CORP	COM	514766104	3928	271472	SH		Sole		158350		113122
LANDSTAR SYST.	COM	515098101	8219	143982	SH		Sole		68550		75432
LIFEWAY FOODS INC	COM	531914109	3433	246999	SH		Sole		172410		74589
LUBY'S INC	COM	549282101	14813	1980355	SH		Sole		962500		1017855
LUFKIN INDUSTRIES	COM	549764108	20159	303650	SH		Sole		117050		186600
LYDALL INC.	COM	550819106	2304	150150	SH		Sole		71450		78700
MANITOWOC CO.	COM	563571108	1381	67200	SH		Sole		67200
MARCHEX INC CLS-B	COM	56624R108	2067	491046	SH		Sole		366767		124279
MARINE PRODUCTS	COM	568427108	4070	553103	SH		Sole		311189		241914
MARINEMAX INC	COM	567908108	13312	979609	SH		Sole		523800		455809
MARRIOTT VACATIONS WORLD	COM	57164Y107	695	16200	SH		Sole		16200
MAXIMUS INC	COM	577933104	9122	114068	SH		Sole		54130		59938
MB FIN'L	COM	55264U108	18552	767580	SH		Sole		409880		357700
MERIT MEDICAL SYS	COM	589889104	861	70300	SH		Sole		70300
METRO BANCORP INC	COM	59161R101	2468	149219	SH		Sole		91544		57675
MFRI INC	COM	552721102	1239	170961	SH		Sole		139961		31000
MICROSEMI	COM	595137100	7392	319074	SH		Sole		178260		140814
MIDDLEBURG FIN'L	COM	596094102	3354	172837	SH		Sole		75754		97083
MIDSOUTH BCP	COM	598039105	1939	119300	SH		Sole		119300
MKS INSTRUMENTS	COM	55306N104	8202	301573	SH		Sole		171770		129803
MOVE INC	COM	62458M207	10094	844763	SH		Sole		423024		421739
MPG OFFICE TRST REIT	COM	553274101	7577	2755567	SH		Sole		1418222		1337345
MUELLER INDS	COM	624756102	1081	20300	SH		Sole		20300
MUTUAL 1ST FINL	COM	62845B104	3614	251893	SH		Sole		131486		120407
MYERS INDUSTRIES INC	COM	628464109	1013	72600	SH		Sole		72600
NANOSPHERE	COM	63009F105	1463	668314	SH		Sole		332414		335900
NATIONAL FINANCIAL PARTNERS	COM	63607P208	2139	95400	SH		Sole		47800		47600
NATIONAL INTRSTTE	COM	63654U100	6753	225252	SH		Sole		107633		117619
NATUS MEDICAL	COM	639050103	7339	546080	SH		Sole		348203		197877
NEOGENOMICS INC	COM	64049M209	5730	1456704	SH		Sole		788257		668447
NEW JERSEY RES	COM	646025106	6063	135190	SH		Sole		80630		54560
NEWPORT BANCORP	COM	651754103	6007	345238	SH		Sole		295990		49248
NORTH VALLEY BCP	COM	66304M204	7964	449982	SH		Sole		254997		194985
NORTHWEST PIPE	COM	667746101	13556	484520	SH		Sole		254800		229720
NORTHWESTERN	COM	668074305	3315	83180	SH		Sole		39280		43900
NOVADAQ TECHNOLOGIES INC	COM	66987G102	3147	317600	SH		Sole		159600		158000
NUVASIVE INC	COM	670704105	9148	429286	SH		Sole		242886		186400
OLYMPIC STEEL	COM	68162K106	12277	513723	SH		Sole		256938		256785
OMEGA PROTEIN	COM	68210P107	5864	545530	SH		Sole		269030		276500
OMNIAMERICAN BCP	COM	68216r107	10707	423565	SH		Sole		205300		218265
PACWEST BNCP	COM	695263103	15790	542433	SH		Sole		196333		346100
PAR TECHNOLOGY CORP	COM	698884103	1131	240194	SH		Sole		158200		81994
PARK STERLING	COM	70086Y105	11084	1965390	SH		Sole		1039100		926290
PENFORD CORP	COM	707051108	4726	430829	SH		Sole		206098		224731
PEP BOYS-MANNY MOE & JACK	COM	713278109	1006	85400	SH		Sole		85400
PERCEPTRON INC.	COM	71361F100	1853	256751	SH		Sole		130501		126250
PERFORMANT FINANCIAL CORP	COM	71377E105	2268	184700	SH		Sole		92500		92200
PERKINELMER INC	COM	714046109	5424	161259	SH		Sole		86670		74589
PERMAFIX ENV SVCS	COM	714157104	184	225070	SH		Sole		220870		4200
"PLX TECHNOLOGY, INC"	COM	693417107	5508	1207900	SH		Sole		632300		575600
"PMFG, INC"	COM	69345P103	1412	228964	SH		Sole		108120		120844
POWELL INDUSTRIES	COM	739128106	1560	29690	SH		Sole		17420		12270
POWERSECURE INTL	COM	73936N105	4130	324980	SH		Sole		189600		135380
PRIMORIS SERVICES	COM	74164F103	10173	460130	SH		Sole		233130		227000
PROGRESS SFTWRE	COM	743312100	7839	343393	SH		Sole		201093		142300
PROOFPOINT INC	COM	743424103	5986	355100	SH		Sole		225300		129800
PROVIDENCE SVC	COM	743815102	1472	79663	SH		Sole		39624		40039
Preferred Bk LA	COM	740367404	1186	75168	SH		Sole		75168
RBC BEARINGS	COM	75524B104	7655	151423	SH		Sole		72640		78783
REACHLOCAL INC	COM	75525F104	3288	219788	SH		Sole		110178		109610
REIS INC	COM	75936P105	7808	502506	SH		Sole		276630		225876
RESPONSYS INC	COM	761248103	5498	621300	SH		Sole		343900		277400
RLI CORP.	COM	749607107	689	9600	SH		Sole		9600
ROCKVILLE FINANCIAL INC.	COM	774188106	1470	113500	SH		Sole		113500
ROCKY BRANDS	COM	774515100	3993	293397	SH		Sole		155812		137585
ROGERS CORP	COM	775133101	647	13600	SH		Sole		13600
RUDOLPH TECH	COM	781270103	7525	638852	SH		Sole		320222		318630
RUTH'S CHRIS	COM	783332109	9617	1008082	SH		Sole		512282		495800
SALIX PHARMA	COM	795435106	4003	78217	SH		Sole		37030		41187
SANDERS FARMS	COM	800013104	753	13800	SH		Sole		13800
SCBT FINANCIAL	COM	78401V102	4697	93200	SH		Sole		43900		49300
SCIQUEST INC	COM	80908T101	7454	310095	SH		Sole		175909		134186
SEACHANGE INTL INC	COM	811699107	10520	884801	SH		Sole		479000		405801
SEACOR HLDGS INC	COM	811904101	4909	66626	SH		Sole		40910		25716
SHARPS COMPLI	COM	820017101	4136	1543521	SH		Sole		1087990		455531
SI FINANCIAL GROUP INC	COM	78425V104	3930	325100	SH		Sole		22600		302500
SIFCO IND	COM	826546103	7713	418971	SH		Sole		301825		117146
SILICON IMAGE INC	COM	82705T102	4686	964263	SH		Sole		536763		427500
SIMPSON MFG INC	COM	829073105	5513	180115	SH		Sole		105560		74555
SIRONA DENTAL	COM	82966C103	6083	82506	SH		Sole		38880		43626
SOURCEFIRE INC	COM	83616T108	9251	156193	SH		Sole		74270		81923
SOUTH JERSEY IND	COM	838518108	1195	21500	SH		Sole		21500
SOUTHERN NATL	COM	843395104	3274	338300	SH		Sole		338300
SOUTHWEST GAS	COM	844895102	6947	146388	SH		Sole		89240		57148
SPARTAN MOTORS	COM	846819100	9814	1848337	SH		Sole		967300		881037
SPARTON CORP	COM	847235108	8870	661983	SH		Sole		346103		315880
SPECTRANETICS	COM	84760C107	11531	622322	SH		Sole		343100		279222
SPX CORP	COM	784635104	844	10700	SH		Sole		10700
STANDARD PACIFIC	COM	85375C101	8092	936598	SH		Sole		579648		356950
STERLING FINL	COM	859319303	2390	110200	SH		Sole		110200
STEVE MADDEN	COM	556269108	4716	109100	SH		Sole		51900		57200
STIFEL FINL	COM	860630102	9379	270545	SH		Sole		153550		116995
SUPPORT.COM INC.	COM	86858W101	7336	1755086	SH		Sole		873265		881821
SWIFT ENERGY	COM	870738101	1446	97700	SH		Sole		97700
SYNERGETICS USA	COM	87160G107	2744	791029	SH		Sole		439729		351300
SYNERGY RESOURCES CORP	COM	87164P103	6682	974161	SH		Sole		595000		379161
TAKE-TWO SFTWR	COM	874054109	2519	156000	SH		Sole		156000
TEARLAB CORP	COM	878193101	6199	898500	SH		Sole		571900		326600
TELEDYNE TECH	COM	879360105	8741	111448	SH		Sole		60600		50848
TERRITORIAL BCP	COM	88145x108	7945	334140	SH		Sole		179018		155122
TEXAS INDS	COM	882491103	33267	527143	SH		Sole		206300		320843
TF FIN'L	COM	872391107	7195	286089	SH		Sole		240536		45553
TGC IND	COM	872417308	4198	424050	SH		Sole		214406		209644
TICC CAPITAL CORP	COM	87244t109	8878	892796	SH		Sole		448878		443918
TIDEWATER INC.	COM	886423102	1237	24500	SH		Sole		24500
TORO CORP	COM	891092108	7243	157325	SH		Sole		74548		82777
TOWER GROUP INC	COM	G8988C105	1216	65940	SH		Sole		65940
TREEHOUSE FOODS	COM	89469A104	6775	103999	SH		Sole		49060		54939
TRIANGLE PETRO	COM	89600B201	1963	297500	SH		Sole		129520		167980
TRIQUINT SEMI	COM	89674K103	9504	1878320	SH		Sole		1104820		773500
TUESDAY MORNING INC.	COM	899035505	4873	628080	SH		Sole		298900		329180
TWIN DISC INC	COM	901476101	8046	320846	SH		Sole		156400		164446
ULTRALIFE CORP	COM	903899102	3629	812781	SH		Sole		471500		341281
UNITED NAT.FOODS	COM	911163103	3011	61210	SH		Sole		29110		32100
UNIVEST CORP OF PA	COM	915271100	698	40100	SH		Sole		20100		20000
UNIVRSL STNLESS	COM	913837100	3947	108600	SH		Sole		54300		54300
UROPLASTY INC	COM	917277204	1749	702553	SH		Sole		614328		88225
UTI WORLDWIDE	COM	G87210103	6734	465089	SH		Sole		298750		166339
VENTRUS BIOSCIENCES INC	COM	922822101	2909	973000	SH		Sole		489800		483200
VIEWPOINT FINL	COM	92672A101	17126	851639	SH		Sole		342788		508851
VOCUS INC	COM	92858J108	6453	456046	SH		Sole		228679		227367
VOLTERRA SEMICONDUCTOR CORP	COM	928708106	6435	453187	SH		Sole		214830		238357
WELLCARE HEALTH PLANS INC	COM	94946T106	5919	102130	SH		Sole		48430		53700
WEST PHARM SVCS	COM	955306105	1136	17500	SH		Sole		17500
WINTRUST FIN'L	COM	97650w108	633	17100	SH		Sole		17100
WRIGHT MEDICAL	COM	98235T107	347	14600	SH		Sole		14600
XPO LOGISTICS	COM	983793100	2519	149600	SH		Sole		71800		77800