Portolan Capital Management

Portolan Capital Management as of Sept. 30, 2011

Portfolio Holdings for Portolan Capital Management

Portolan Capital Management holds 193 positions in its portfolio as reported in the September 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Capital One Financial (COF) 1.8 $6.1M 155k 39.63
Google 1.7 $6.0M 12k 515.08
Web 1.7 $5.9M 851k 6.98
Xerox Corporation 1.7 $5.8M 834k 6.97
CAI International 1.5 $5.3M 452k 11.72
Credit Acceptance (CACC) 1.5 $5.3M 82k 64.36
Microsoft Corporation (MSFT) 1.5 $5.2M 210k 24.89
Western Union Company (WU) 1.5 $5.2M 340k 15.29
Lexmark International 1.4 $4.7M 175k 27.03
Avnet (AVT) 1.4 $4.7M 180k 26.08
VELTI PLC ST Helier 1.3 $4.6M 699k 6.61
Domtar Corp 1.3 $4.5M 67k 68.16
Gilead Sciences (GILD) 1.3 $4.4M 113k 38.80
Ellie Mae 1.2 $4.2M 764k 5.56
Pep Boys - Manny, Moe & Jack 1.2 $4.2M 423k 9.87
Oracle Corporation (ORCL) 1.2 $4.1M 144k 28.74
Rochester Medical Corporation 1.2 $4.1M 544k 7.59
Abiomed 1.2 $4.0M 363k 11.03
Altisource Portfolio Solns S reg (ASPS) 1.1 $3.9M 111k 35.39
Virtusa Corporation 1.1 $3.9M 293k 13.20
Agilent Technologies Inc C ommon (A) 1.1 $3.8M 122k 31.25
Staples 1.1 $3.8M 287k 13.30
Tenne 1.1 $3.8M 147k 25.61
Hewlett-Packard Company 1.1 $3.7M 165k 22.45
Encore Capital (ECPG) 1.1 $3.7M 168k 21.85
Nuance Communications 1.0 $3.6M 177k 20.34
CVS Caremark Corporation (CVS) 1.0 $3.6M 106k 33.59
Tupperware Brands Corporation (TUP) 1.0 $3.6M 66k 53.74
United Stationers 1.0 $3.5M 130k 27.22
CEC Entertainment 1.0 $3.5M 124k 28.47
Cabela's Incorporated 1.0 $3.5M 171k 20.49
LivePerson (LPSN) 1.0 $3.4M 341k 9.95
US Airways 1.0 $3.3M 606k 5.50
Aon Corporation 0.9 $3.2M 77k 41.98
Symantec Corporation 0.9 $3.2M 194k 16.30
WuXi PharmaTech 0.9 $3.1M 265k 11.64
DISH Network 0.9 $3.0M 120k 25.05
Archer Daniels Midland Company (ADM) 0.9 $3.0M 120k 24.81
Inter Parfums (IPAR) 0.9 $3.0M 192k 15.45
Portfolio Recovery Associates 0.9 $3.0M 48k 62.21
Walt Disney Company (DIS) 0.8 $3.0M 98k 30.16
Pfizer (PFE) 0.8 $2.8M 160k 17.68
Corning Incorporated (GLW) 0.8 $2.7M 215k 12.36
Rock-Tenn Company 0.8 $2.7M 55k 48.67
Schweitzer-Mauduit International (MATV) 0.8 $2.7M 48k 55.87
Teva Pharmaceutical Industries (TEVA) 0.8 $2.6M 70k 37.23
Apple (AAPL) 0.8 $2.6M 6.9k 381.26
Herbalife Ltd Com Stk (HLF) 0.8 $2.6M 49k 53.60
Baxter International (BAX) 0.7 $2.5M 45k 56.14
Pall Corporation 0.7 $2.5M 60k 42.40
Descartes Sys Grp (DSGX) 0.7 $2.5M 408k 6.18
Destination Maternity Corporation 0.7 $2.5M 192k 12.87
Midas 0.7 $2.5M 300k 8.20
UnitedHealth (UNH) 0.7 $2.4M 51k 46.13
ValueClick 0.7 $2.4M 152k 15.56
Casella Waste Systems (CWST) 0.7 $2.4M 449k 5.26
Cisco Systems (CSCO) 0.7 $2.3M 146k 15.50
Regis Corporation 0.7 $2.2M 159k 14.09
Biogen Idec (BIIB) 0.7 $2.2M 24k 93.14
Sonic Automotive (SAH) 0.6 $2.1M 196k 10.79
Novartis (NVS) 0.6 $2.1M 38k 55.77
Vistaprint N V 0.6 $2.1M 77k 27.03
Lj International Inc. ord 0.6 $2.1M 836k 2.50
C.R. Bard 0.6 $2.0M 23k 87.54
Simcere Pharmaceutical 0.6 $2.0M 200k 9.93
Summer Infant 0.6 $2.0M 302k 6.60
j2 Global Communications 0.6 $2.0M 73k 26.89
Visa (V) 0.6 $1.9M 23k 85.74
Aspen Technology 0.6 $1.9M 124k 15.27
AboveNet 0.6 $1.9M 35k 53.61
Syngenta 0.5 $1.9M 36k 51.88
Skechers USA (SKX) 0.5 $1.8M 131k 14.03
Dfc Global 0.5 $1.8M 84k 21.82
Weatherford International Lt reg 0.5 $1.8M 146k 12.21
KVH Industries (KVHI) 0.5 $1.8M 222k 7.91
Exxon Mobil Corporation (XOM) 0.5 $1.7M 24k 72.63
Hospira 0.5 $1.7M 46k 36.99
Lithia Motors (LAD) 0.5 $1.7M 118k 14.38
Constant Contact 0.5 $1.7M 99k 17.29
Signet Jewelers (SIG) 0.5 $1.7M 49k 33.81
Covenant Transportation (CVLG) 0.5 $1.7M 454k 3.65
Adobe Systems Incorporated (ADBE) 0.5 $1.6M 67k 24.17
School Specialty 0.5 $1.6M 230k 7.13
Merck & Co (MRK) 0.5 $1.6M 49k 32.70
O'Charley's 0.5 $1.6M 267k 5.94
Hackett (HCKT) 0.5 $1.6M 420k 3.73
Casual Male Retail 0.4 $1.5M 401k 3.76
America's Car-Mart (CRMT) 0.4 $1.5M 51k 29.03
Aetna 0.4 $1.5M 40k 36.33
Visteon Corporation (VC) 0.4 $1.4M 34k 42.99
Sunrise Senior Living 0.4 $1.4M 305k 4.63
Boise 0.4 $1.4M 272k 5.17
QLogic Corporation 0.4 $1.4M 113k 12.68
ChinaEdu Corporation (CEDU) 0.4 $1.4M 238k 5.89
Gt Solar Int'l 0.4 $1.4M 202k 7.02
Actuate Corporation 0.4 $1.4M 252k 5.52
Dana Holding Corporation (DAN) 0.4 $1.4M 133k 10.50
Federal-Mogul Corporation 0.4 $1.3M 91k 14.75
ShangPharma 0.4 $1.4M 162k 8.34
Becton, Dickinson and (BDX) 0.4 $1.3M 17k 73.30
DineEquity (DIN) 0.4 $1.3M 34k 38.48
Ford Motor Company (F) 0.4 $1.2M 127k 9.67
Life Technologies 0.4 $1.2M 33k 38.43
NII Holdings 0.3 $1.2M 43k 26.95
Pain Therapeutics 0.3 $1.2M 244k 4.76
Rockwell Automation (ROK) 0.3 $1.2M 21k 56.00
ITT Corporation 0.3 $1.1M 27k 42.00
Zebra Technologies (ZBRA) 0.3 $1.1M 35k 30.93
Steris Corporation 0.3 $1.1M 37k 29.26
Western Digital (WDC) 0.3 $1.1M 42k 25.71
Progress Software Corporation (PRGS) 0.3 $1.1M 61k 17.54
Buckeye Technologies 0.3 $1.1M 44k 24.11
Charming Shoppes 0.3 $1.1M 407k 2.60
DemandTec 0.3 $1.1M 165k 6.54
At&t (T) 0.3 $1.0M 36k 28.53
Flowserve Corporation (FLS) 0.3 $1.0M 14k 73.99
Guess? (GES) 0.3 $1.0M 36k 28.49
Anika Therapeutics (ANIK) 0.3 $995k 183k 5.44
Fossil 0.3 $972k 12k 81.09
Occidental Petroleum Corporation (OXY) 0.3 $984k 14k 71.51
CNinsure 0.3 $980k 140k 7.00
JDS Uniphase Corporation 0.3 $983k 99k 9.97
Mercer International (MERC) 0.3 $953k 140k 6.80
WebMD Health 0.3 $972k 32k 30.14
Carrols Restaurant (TAST) 0.3 $953k 107k 8.90
Kirby Corporation (KEX) 0.3 $951k 18k 52.63
Digi International (DGII) 0.3 $904k 82k 11.00
TRW Automotive Holdings 0.2 $875k 27k 32.73
MKS Instruments (MKSI) 0.2 $874k 40k 21.70
Reliance Steel & Aluminum (RS) 0.2 $877k 26k 34.00
3SBio (SSRX) 0.2 $881k 74k 11.93
iShares FTSE/Xinhua China 25 Index (FXI) 0.2 $832k 4.0k 208.00
Research In Motion 0.2 $842k 42k 20.30
Walter Energy 0.2 $825k 14k 60.00
Newpark Resources (NR) 0.2 $828k 136k 6.09
Fiserv (FI) 0.2 $794k 16k 50.75
Collective Brands 0.2 $781k 60k 12.96
Microsemi Corporation 0.2 $804k 50k 15.97
Guidance Software 0.2 $802k 124k 6.49
Saba Software 0.2 $744k 129k 5.76
Covidien 0.2 $750k 17k 44.07
McKesson Corporation (MCK) 0.2 $682k 9.4k 72.72
Bottomline Technologies 0.2 $684k 34k 20.13
P.H. Glatfelter Company 0.2 $708k 54k 13.21
Verisign (VRSN) 0.2 $649k 23k 28.60
VCA Antech 0.2 $645k 40k 15.98
Teleflex Incorporated (TFX) 0.2 $665k 12k 53.76
Bitauto Hldg 0.2 $625k 102k 6.10
Fidelity National Information Services (FIS) 0.2 $596k 25k 24.31
Cracker Barrel Old Country Store (CBRL) 0.2 $595k 15k 40.01
Thoratec Corporation 0.2 $589k 18k 32.64
Great Lakes Dredge & Dock Corporation (GLDD) 0.2 $581k 143k 4.07
AEGEAN MARINE PETROLEUM Networ Com Stk 0.2 $602k 133k 4.51
MGM Resorts International. (MGM) 0.2 $592k 64k 9.28
Keynote Systems 0.2 $578k 27k 21.12
Hasbro (HAS) 0.2 $559k 17k 32.59
Johnson Controls 0.2 $561k 21k 26.38
Asbury Automotive (ABG) 0.2 $563k 34k 16.50
Mattersight Corp 0.2 $557k 137k 4.07
Digital Realty Trust (DLR) 0.1 $510k 9.2k 55.18
Syneron Medical Ltd ord 0.1 $514k 52k 9.91
51job 0.1 $536k 13k 39.96
Juniper Networks (JNPR) 0.1 $530k 31k 17.24
Abraxas Petroleum 0.1 $515k 195k 2.64
Universal Stainless & Alloy Products (USAP) 0.1 $507k 20k 25.44
Zale Corporation 0.1 $500k 176k 2.85
Amgen (AMGN) 0.1 $492k 8.9k 55.02
News Corporation 0.1 $494k 32k 15.60
Big Lots (BIG) 0.1 $481k 14k 34.84
Five Star Quality Care 0.1 $491k 196k 2.50
PetSmart 0.1 $438k 10k 42.61
Schlumberger (SLB) 0.1 $452k 7.6k 59.68
Dolby Laboratories (DLB) 0.1 $453k 17k 27.46
Air Transport Services (ATSG) 0.1 $442k 102k 4.33
Oasis Petroleum 0.1 $437k 20k 22.34
Materion Corporation (MTRN) 0.1 $460k 20k 22.69
Gafisa SA 0.1 $422k 73k 5.77
Atlas Air Worldwide Holdings 0.1 $420k 13k 33.33
Hittite Microwave Corporation 0.1 $398k 8.2k 48.66
ULTRAPETROL BAHAMAS LTD COM Stk (ULTRF) 0.1 $419k 185k 2.27
PHC 0.1 $402k 170k 2.36
Entegris (ENTG) 0.1 $375k 59k 6.37
Seagate Technology Com Stk 0.1 $373k 36k 10.27
Gaiam 0.1 $370k 109k 3.39
Alkermes (ALKS) 0.1 $331k 22k 15.24
Genworth Financial (GNW) 0.1 $267k 47k 5.74
Marathon Oil Corporation (MRO) 0.1 $284k 13k 21.59
Ness Technologies 0.1 $264k 34k 7.67
Iconix Brand 0.1 $289k 18k 15.82
Rex American Resources (REX) 0.1 $216k 13k 16.85
Geokinetics 0.0 $107k 44k 2.43
Xueda Education 0.0 $112k 41k 2.73
iParty (IPT) 0.0 $20k 105k 0.19