Portolan Capital Management
Latest statistics and disclosures from Portolan Capital Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are SMCI, QTRX, ELF, CLS, LNTH, and represent 21.36% of Portolan Capital Management's stock portfolio.
- Added to shares of these 10 stocks: CLS (+$24M), KOS (+$17M), CCOI (+$15M), WEX (+$11M), PAYO (+$11M), UTHR (+$11M), HDSN (+$10M), LNTH (+$8.9M), BORR (+$8.7M), ZETA (+$8.1M).
- Started 29 new stock positions in CECO, WEX, BOX, ARCT, ONTO, CRMT, EDR, BORR, FOUR, FORR.
- Reduced shares in these 10 stocks: , SMCI (-$17M), APLD (-$14M), KRUS (-$13M), SGH (-$13M), CELH (-$12M), VICR (-$12M), HROW (-$10M), , BIO (-$8.1M).
- Sold out of its positions in ASO, ANIK, AVDL, AVID, CACI, TAST, COMP, CUBI, DSKE, FTCH.
- Portolan Capital Management was a net seller of stock by $-1.7M.
- Portolan Capital Management has $1.1B in assets under management (AUM), dropping by -5.26%.
- Central Index Key (CIK): 0001350290
Tip: Access up to 7 years of quarterly data
Positions held by Portolan Capital Management consolidated in one spreadsheet with up to 7 years of data
Download as csv

Portfolio Holdings for Portolan Capital Management
Portolan Capital Management holds 123 positions in its portfolio as reported in the September 2023 quarterly 13F filing
Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
---|---|---|---|---|---|---|
Super Micro Computer (SMCI) | 7.5 | $81M | -17% | 294k | 274.22 |
|
Quanterix Ord (QTRX) | 4.3 | $46M | +18% | 1.7M | 27.14 |
|
Elf Beauty (ELF) | 3.3 | $35M | -10% | 318k | 109.83 |
|
Celestica (CLS) | 3.2 | $35M | +234% | 1.4M | 24.52 |
|
Lantheus Holdings Inc Common Stock Usd 0.01 (LNTH) | 3.1 | $33M | +36% | 475k | 69.48 |
|
Payoneer Global (PAYO) | 2.2 | $24M | +82% | 3.9M | 6.12 |
|
Modine Manufacturing (MOD) | 2.2 | $24M | +16% | 513k | 45.75 |
|
Tecnoglass (TGLS) | 1.9 | $20M | -4% | 612k | 32.96 |
|
Crocs (CROX) | 1.8 | $19M | +26% | 217k | 88.23 |
|
Couchbase (BASE) | 1.7 | $19M | -22% | 1.1M | 17.16 |
|
Dell Technologies (DELL) | 1.7 | $19M | -26% | 270k | 68.90 |
|
United Therapeutics Corporation (UTHR) | 1.7 | $18M | +142% | 81k | 225.87 |
|
Bel Fuse (BELFB) | 1.7 | $18M | +6% | 379k | 47.72 |
|
Facebook Inc cl a (META) | 1.6 | $17M | -4% | 57k | 300.21 |
|
Oracle Corporation (ORCL) | 1.6 | $17M | +11% | 160k | 105.92 |
|
Kura Sushi Usa Inc cl a (KRUS) | 1.6 | $17M | -43% | 256k | 66.12 |
|
Kosmos Energy (KOS) | 1.6 | $17M | NEW | 2.1M | 8.18 |
|
Genius Sports (GENI) | 1.6 | $17M | +21% | 3.1M | 5.33 |
|
Similarweb (SMWB) | 1.5 | $17M | -5% | 2.5M | 6.48 |
|
Matthews International Corporation (MATW) | 1.5 | $16M | +8% | 406k | 38.91 |
|
Bio-Rad Laboratories (BIO) | 1.4 | $15M | -34% | 43k | 358.45 |
|
Cogent Communications (CCOI) | 1.4 | $15M | NEW | 242k | 61.90 |
|
Celsius Holdings (CELH) | 1.4 | $15M | -44% | 86k | 171.60 |
|
Smart Global Holdings (SGH) | 1.4 | $15M | -46% | 600k | 24.35 |
|
Hudson Technologies (HDSN) | 1.3 | $14M | +283% | 1.0M | 13.30 |
|
Applied Optoelectronics (AAOI) | 1.1 | $12M | -13% | 1.0M | 10.97 |
|
Northern Oil And Gas Inc Mn (NOG) | 1.1 | $11M | +133% | 284k | 40.23 |
|
Crane Holdings (CXT) | 1.1 | $11M | 205k | 55.57 |
|
|
Wright Express (WEX) | 1.0 | $11M | NEW | 59k | 188.09 |
|
Nextracker (NXT) | 1.0 | $11M | +53% | 273k | 40.16 |
|
Docgo (DCGO) | 1.0 | $11M | -27% | 2.0M | 5.33 |
|
Baidu (BIDU) | 1.0 | $10M | +324% | 77k | 134.35 |
|
Enova Intl (ENVA) | 0.9 | $10M | 199k | 50.87 |
|
|
Flextronics International Ltd Com Stk (FLEX) | 0.9 | $9.9M | -16% | 366k | 26.98 |
|
Walkme (WKME) | 0.9 | $9.5M | +383% | 1.0M | 9.48 |
|
Vertiv Holdings Llc vertiv holdings (VRT) | 0.9 | $9.4M | +36% | 252k | 37.20 |
|
Honest (HNST) | 0.8 | $8.9M | +21% | 7.1M | 1.26 |
|
Borr Drilling (BORR) | 0.8 | $8.7M | NEW | 1.2M | 7.10 |
|
Amkor Technology (AMKR) | 0.8 | $8.4M | +19% | 373k | 22.60 |
|
Identiv (INVE) | 0.8 | $8.1M | 962k | 8.44 |
|
|
Kratos Defense & Security Solutions (KTOS) | 0.8 | $8.1M | +28% | 538k | 15.02 |
|
Zeta Global Holdings Corp (ZETA) | 0.8 | $8.1M | NEW | 967k | 8.35 |
|
Nerdy (NRDY) | 0.8 | $8.0M | +24% | 2.2M | 3.70 |
|
Pbf Energy Inc cl a (PBF) | 0.7 | $7.9M | +688% | 148k | 53.53 |
|
Sunopta (STKL) | 0.7 | $7.8M | -4% | 2.3M | 3.37 |
|
I3 Verticals (IIIV) | 0.7 | $7.8M | -36% | 367k | 21.14 |
|
Hewlett Packard Enterprise (HPE) | 0.7 | $7.3M | -24% | 422k | 17.37 |
|
Arcturus Therapeutics Hldg I (ARCT) | 0.7 | $7.1M | NEW | 277k | 25.55 |
|
Maxcyte (MXCT) | 0.6 | $6.7M | +29% | 2.1M | 3.12 |
|
Talos Energy (TALO) | 0.6 | $6.7M | +110% | 406k | 16.44 |
|
Eventbrite (EB) | 0.6 | $6.6M | -50% | 674k | 9.86 |
|
Take-Two Interactive Software (TTWO) | 0.6 | $6.4M | 46k | 140.39 |
|
|
Onto Innovation (ONTO) | 0.6 | $6.4M | NEW | 50k | 127.52 |
|
Applied Blockchain (APLD) | 0.6 | $6.4M | -68% | 1.0M | 6.24 |
|
Newmark Group (NMRK) | 0.6 | $6.3M | +6% | 972k | 6.43 |
|
Navigator Holdings Ltd Com Stk (NVGS) | 0.6 | $6.2M | NEW | 421k | 14.77 |
|
RadNet (RDNT) | 0.6 | $6.1M | -28% | 217k | 28.19 |
|
Amphastar Pharmaceuticals (AMPH) | 0.6 | $6.1M | -27% | 133k | 45.99 |
|
Custom Truck One (CTOS) | 0.6 | $6.1M | +13% | 977k | 6.20 |
|
Repay Hldgs Corp (RPAY) | 0.5 | $5.9M | -30% | 771k | 7.59 |
|
Gfl Environmental Inc sub vtg (GFL) | 0.5 | $5.7M | 179k | 31.76 |
|
|
Harrow Health (HROW) | 0.5 | $5.5M | -64% | 386k | 14.37 |
|
Shift4 Payments Cl A Ord (FOUR) | 0.5 | $5.5M | NEW | 100k | 55.37 |
|
Crescent Point Energy Trust (CPG) | 0.5 | $5.4M | NEW | 645k | 8.30 |
|
Matrix Service Company (MTRX) | 0.5 | $5.2M | NEW | 444k | 11.80 |
|
Integral Ad Science Hldng (IAS) | 0.5 | $5.2M | +212% | 434k | 11.89 |
|
Chubb (CB) | 0.5 | $5.1M | NEW | 24k | 208.18 |
|
Indie Semiconductor (INDI) | 0.5 | $5.0M | +46% | 792k | 6.30 |
|
America's Car-Mart (CRMT) | 0.5 | $4.9M | NEW | 54k | 90.99 |
|
Darling International (DAR) | 0.5 | $4.9M | -18% | 93k | 52.20 |
|
Honeywell International (HON) | 0.5 | $4.8M | NEW | 26k | 184.74 |
|
Healthequity (HQY) | 0.4 | $4.8M | NEW | 65k | 73.05 |
|
Dht Holdings (DHT) | 0.4 | $4.7M | NEW | 453k | 10.30 |
|
Th International Ord (THCH) | 0.4 | $4.5M | +8% | 2.5M | 1.81 |
|
Acacia Research Corporation (ACTG) | 0.4 | $4.4M | +6% | 1.2M | 3.65 |
|
Nvent Electric Plc Voting equities (NVT) | 0.4 | $4.3M | NEW | 81k | 52.99 |
|
Castle Biosciences (CSTL) | 0.4 | $4.3M | -41% | 253k | 16.89 |
|
Endeavor Group Hldgs (EDR) | 0.4 | $4.2M | NEW | 213k | 19.90 |
|
Skechers USA (SKX) | 0.4 | $4.2M | +51% | 86k | 48.95 |
|
Children's Place Retail Stores (PLCE) | 0.4 | $4.2M | NEW | 154k | 27.03 |
|
Sweetgreen Cl A Ord (SG) | 0.4 | $4.0M | -14% | 345k | 11.75 |
|
Warby Parker (WRBY) | 0.4 | $4.0M | +40% | 303k | 13.16 |
|
Vicor Corporation (VICR) | 0.4 | $3.9M | -74% | 66k | 58.89 |
|
Skyline Corporation (SKY) | 0.4 | $3.9M | +23% | 61k | 63.72 |
|
Box Inc cl a (BOX) | 0.4 | $3.9M | NEW | 160k | 24.21 |
|
Green Plains Renewable Energy (GPRE) | 0.4 | $3.9M | +34% | 128k | 30.10 |
|
Casella Waste Systems (CWST) | 0.4 | $3.8M | -26% | 50k | 76.30 |
|
Euronav Sa (EURN) | 0.4 | $3.8M | NEW | 230k | 16.43 |
|
Vistra Energy (VST) | 0.3 | $3.7M | NEW | 112k | 33.18 |
|
Ww Intl (WW) | 0.3 | $3.7M | -7% | 331k | 11.07 |
|
Extreme Networks (EXTR) | 0.3 | $3.6M | NEW | 148k | 24.21 |
|
Overseas Shipholding Group I Cl A (OSG) | 0.3 | $3.5M | +3% | 800k | 4.39 |
|
Forrester Research (FORR) | 0.3 | $3.4M | NEW | 119k | 28.90 |
|
Teck Resources Ltd cl b (TECK) | 0.3 | $3.3M | -6% | 78k | 43.09 |
|
Telos Corp Md (TLS) | 0.3 | $3.3M | +46% | 1.4M | 2.39 |
|
Taskus (TASK) | 0.3 | $3.2M | -51% | 309k | 10.38 |
|
Laredo Petroleum (VTLE) | 0.3 | $3.1M | -37% | 56k | 55.42 |
|
Immersion Corporation (IMMR) | 0.3 | $3.0M | 449k | 6.61 |
|
|
Carrier Global Corporation (CARR) | 0.3 | $2.7M | NEW | 50k | 55.20 |
|
Icad (ICAD) | 0.2 | $2.6M | +43% | 1.2M | 2.11 |
|
CECO Environmental (CECO) | 0.2 | $2.6M | NEW | 164k | 15.97 |
|
QuinStreet (QNST) | 0.2 | $2.5M | NEW | 282k | 8.97 |
|
Douglas Elliman (DOUG) | 0.2 | $2.5M | -3% | 1.1M | 2.26 |
|
Middleby Corporation (MIDD) | 0.2 | $2.3M | NEW | 18k | 128.00 |
|
Alta Equipment Group (ALTG) | 0.2 | $2.3M | -10% | 190k | 12.06 |
|
Richardson Electronics (RELL) | 0.2 | $2.3M | +20% | 208k | 10.93 |
|
Royalty Pharma (RPRX) | 0.2 | $2.1M | -43% | 78k | 27.14 |
|
1stdibs (DIBS) | 0.2 | $2.0M | 556k | 3.64 |
|
|
Harvard Bioscience (HBIO) | 0.2 | $1.9M | -42% | 451k | 4.30 |
|
Domo Cl B Ord (DOMO) | 0.2 | $1.7M | -2% | 177k | 9.81 |
|
Microsoft Corporation (MSFT) | 0.2 | $1.7M | 5.4k | 315.75 |
|
|
Nutanix Inc cl a (NTNX) | 0.2 | $1.7M | -73% | 49k | 34.88 |
|
Carparts.com (PRTS) | 0.1 | $1.5M | -52% | 372k | 4.12 |
|
Rh (RH) | 0.1 | $1.5M | -27% | 5.7k | 264.36 |
|
Twilio Inc cl a (TWLO) | 0.1 | $1.3M | -72% | 22k | 58.53 |
|
Axt (AXTI) | 0.1 | $1.2M | 509k | 2.40 |
|
|
Clean Harbors (CLH) | 0.1 | $1.0M | -71% | 6.2k | 167.36 |
|
Hims & Hers Heal (HIMS) | 0.1 | $944k | NEW | 150k | 6.29 |
|
Vectrus (VVX) | 0.1 | $712k | -87% | 14k | 51.66 |
|
Alphabet Inc Class C cs (GOOG) | 0.0 | $529k | 4.0k | 131.85 |
|
|
Destination Xl (DXLG) | 0.0 | $446k | -22% | 100k | 4.48 |
|
Bluelinx Hldgs (BXC) | 0.0 | $397k | -89% | 4.8k | 82.09 |
|
Emcore Corp (EMKR) | 0.0 | $316k | -50% | 664k | 0.48 |
|
Past Filings by Portolan Capital Management
SEC 13F filings are viewable for Portolan Capital Management going back to 2010
- Portolan Capital Management 2023 Q3 filed Nov. 14, 2023
- Portolan Capital Management 2023 Q2 filed Aug. 14, 2023
- Portolan Capital Management 2023 Q1 filed May 15, 2023
- Portolan Capital Management 2022 Q4 filed Feb. 13, 2023
- Portolan Capital Management 2022 Q3 filed Nov. 14, 2022
- Portolan Capital Management 2022 Q2 filed Aug. 15, 2022
- Portolan Capital Management 2022 Q1 filed May 16, 2022
- Portolan Capital Management 2021 Q4 filed Feb. 14, 2022
- Portolan Capital Management 2021 Q3 filed Nov. 15, 2021
- Portolan Capital Management 2021 Q2 filed Aug. 16, 2021
- Portolan Capital Management 2021 Q1 filed May 17, 2021
- Portolan Capital Management 2020 Q4 filed Feb. 16, 2021
- Portolan Capital Management 2020 Q3 filed Nov. 16, 2020
- Portolan Capital Management 2020 Q2 filed Aug. 14, 2020
- Portolan Capital Management 2020 Q1 filed May 14, 2020
- Portolan Capital Management 2019 Q4 filed Feb. 14, 2020