Portolan Capital Management as of Dec. 31, 2025
Portfolio Holdings for Portolan Capital Management
Portolan Capital Management holds 155 positions in its portfolio as reported in the December 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| TTM Technologies (TTMI) | 4.2 | $79M | 1.1M | 69.00 | |
| Modine Manufacturing (MOD) | 3.8 | $72M | 536k | 133.51 | |
| Castle Biosciences (CSTL) | 3.6 | $67M | 1.7M | 38.90 | |
| Celestica (CLS) | 2.7 | $51M | 172k | 295.61 | |
| Akamai Technologies (AKAM) | 2.5 | $46M | 524k | 87.25 | |
| The Real Brokerage Com New (REAX) | 2.1 | $39M | 11M | 3.65 | |
| Semtech Corporation (SMTC) | 2.0 | $38M | 509k | 73.69 | |
| Baidu Spon Adr Rep A (BIDU) | 1.8 | $35M | 264k | 130.66 | |
| Vishay Precision (VPG) | 1.8 | $34M | 878k | 38.50 | |
| Genius Sports Shares Cl A (GENI) | 1.7 | $32M | 2.9M | 11.02 | |
| Lantheus Holdings Inc Common Stock Usd 0.01 (LNTH) | 1.7 | $32M | 476k | 66.55 | |
| Shift4 Pmts Cl A (FOUR) | 1.6 | $30M | 468k | 62.97 | |
| Quanterix Ord (QTRX) | 1.5 | $29M | 4.5M | 6.36 | |
| Flex Ord (FLEX) | 1.5 | $28M | 467k | 60.42 | |
| Talen Energy Corp (TLN) | 1.5 | $28M | 75k | 374.84 | |
| Canada Goose Hldgs Shs Sub Vtg (GOOS) | 1.5 | $28M | 2.1M | 12.95 | |
| Warby Parker Cl A Com (WRBY) | 1.4 | $27M | 1.2M | 21.79 | |
| Zeta Global Holdings Corp Cl A (ZETA) | 1.4 | $27M | 1.3M | 20.35 | |
| Powell Industries (POWL) | 1.4 | $25M | 79k | 318.78 | |
| Lightpath Technologies Com Cl A (LPTH) | 1.3 | $25M | 2.3M | 10.80 | |
| Bel Fuse CL B (BELFB) | 1.3 | $24M | 140k | 169.63 | |
| Cellebrite Di Ordinary Shares (CLBT) | 1.2 | $23M | 1.3M | 18.03 | |
| Kratos Defense &sec Solutio Com New (KTOS) | 1.2 | $22M | 294k | 75.91 | |
| Luxexperience Bv Sponsored Ads (LUXE) | 1.2 | $22M | 2.7M | 8.35 | |
| Nlight (LASR) | 1.2 | $22M | 590k | 37.51 | |
| First Solar (FSLR) | 1.1 | $21M | 79k | 261.23 | |
| First American Financial (FAF) | 1.1 | $20M | 321k | 61.44 | |
| Porch Group (PRCH) | 1.0 | $19M | 2.1M | 9.13 | |
| AeroVironment (AVAV) | 1.0 | $18M | 76k | 241.89 | |
| Domo Com Cl B (DOMO) | 1.0 | $18M | 2.2M | 8.43 | |
| United Therapeutics Corporation (UTHR) | 1.0 | $18M | 37k | 487.25 | |
| Tower Semiconductor Shs New (TSEM) | 0.9 | $17M | 149k | 117.42 | |
| I3 Verticals Com Cl A (IIIV) | 0.9 | $17M | 672k | 25.19 | |
| Mamamancini's Holdings (MAMA) | 0.9 | $17M | 1.2M | 13.49 | |
| Sphere Entertainment Cl A (SPHR) | 0.9 | $17M | 176k | 95.08 | |
| Allied Motion Technologies (ALNT) | 0.9 | $16M | 302k | 53.75 | |
| Jabil Circuit (JBL) | 0.9 | $16M | 71k | 228.02 | |
| Marex Group Ord (MRX) | 0.9 | $16M | 419k | 38.36 | |
| Enova Intl (ENVA) | 0.8 | $15M | 98k | 157.20 | |
| Biogen Idec (BIIB) | 0.8 | $15M | 85k | 175.99 | |
| Bio-techne Corporation (TECH) | 0.8 | $15M | 249k | 58.81 | |
| Freeport-mcmoran CL B (FCX) | 0.8 | $15M | 288k | 50.79 | |
| Elf Beauty (ELF) | 0.8 | $15M | 192k | 76.04 | |
| Caredx (CDNA) | 0.8 | $14M | 759k | 18.84 | |
| Upwork (UPWK) | 0.8 | $14M | 720k | 19.82 | |
| Magna Intl Inc cl a (MGA) | 0.7 | $14M | 256k | 53.30 | |
| Ciena Corp Com New (CIEN) | 0.7 | $13M | 57k | 233.87 | |
| Primoris Services (PRIM) | 0.7 | $13M | 106k | 124.14 | |
| Novanta (NOVT) | 0.7 | $13M | 107k | 118.99 | |
| Digitalbridge Group Cl A New (DBRG) | 0.7 | $13M | 825k | 15.34 | |
| Virtu Finl Cl A (VIRT) | 0.7 | $13M | 376k | 33.32 | |
| Honest (HNST) | 0.7 | $12M | 4.8M | 2.58 | |
| Snap Cl A (SNAP) | 0.6 | $12M | 1.5M | 8.07 | |
| Tecnoglass Ord Shs (TGLS) | 0.6 | $12M | 239k | 50.32 | |
| MarineMax (HZO) | 0.6 | $12M | 487k | 24.23 | |
| Transmedics Group (TMDX) | 0.6 | $12M | 97k | 121.65 | |
| Core Natural Resources Com Shs (CNR) | 0.6 | $12M | 130k | 88.51 | |
| Acm Resh Com Cl A (ACMR) | 0.6 | $11M | 286k | 39.45 | |
| Sezzle (SEZL) | 0.6 | $11M | 168k | 63.48 | |
| Guardant Health (GH) | 0.6 | $11M | 104k | 102.14 | |
| Ranpak Holdings Corp Com Cl A (PACK) | 0.6 | $11M | 2.0M | 5.41 | |
| Bio Rad Labs Cl A (BIO) | 0.6 | $10M | 34k | 302.99 | |
| Digi International (DGII) | 0.6 | $10M | 238k | 43.29 | |
| Zillow Group Cl A (ZG) | 0.5 | $10M | 150k | 68.23 | |
| Repay Hldgs Corp Com Cl A (RPAY) | 0.5 | $10M | 2.8M | 3.65 | |
| Ramaco Res Com Cl A (METC) | 0.5 | $10M | 562k | 18.00 | |
| Sanmina (SANM) | 0.5 | $10M | 67k | 150.07 | |
| Kura Sushi Usa Cl A Com (KRUS) | 0.5 | $10M | 191k | 52.33 | |
| Exzeo Group Com Shs (XZO) | 0.5 | $9.8M | 405k | 24.25 | |
| Dave Class A Com New (DAVE) | 0.5 | $9.7M | 44k | 221.41 | |
| Take-Two Interactive Software (TTWO) | 0.5 | $9.6M | 38k | 256.03 | |
| Mayville Engineering (MEC) | 0.5 | $9.6M | 513k | 18.72 | |
| Candel Therapeutics (CADL) | 0.5 | $9.6M | 1.7M | 5.65 | |
| Opera Sponsored Ads (OPRA) | 0.5 | $8.9M | 631k | 14.16 | |
| Remitly Global (RELY) | 0.5 | $8.7M | 628k | 13.80 | |
| Waters Corporation (WAT) | 0.5 | $8.5M | 22k | 379.83 | |
| RadNet (RDNT) | 0.4 | $8.4M | 118k | 71.35 | |
| Wix SHS (WIX) | 0.4 | $8.3M | 80k | 103.89 | |
| Stewart Information Services Corporation (STC) | 0.4 | $8.3M | 118k | 70.26 | |
| Procept Biorobotics Corp (PRCT) | 0.4 | $8.0M | 255k | 31.46 | |
| Applied Optoelectronics (AAOI) | 0.4 | $8.0M | 229k | 34.86 | |
| Open Lending Corp (LPRO) | 0.4 | $7.3M | 4.7M | 1.55 | |
| Ermenegildo Zegna N V Ord Shs (ZGN) | 0.4 | $7.3M | 711k | 10.25 | |
| Genedx Holdings Corp Com Cl A (WGS) | 0.4 | $7.3M | 56k | 130.06 | |
| Nokia Corp Sponsored Adr (NOK) | 0.4 | $7.0M | 1.1M | 6.47 | |
| Nextpower Class A Com (NXT) | 0.4 | $7.0M | 80k | 87.11 | |
| Establishment Labs Holdings Ord (ESTA) | 0.4 | $6.9M | 95k | 72.88 | |
| Qualys (QLYS) | 0.4 | $6.9M | 52k | 132.90 | |
| Vnet Group Sponsored Ads A (VNET) | 0.4 | $6.8M | 807k | 8.46 | |
| Meta Platforms Cl A (META) | 0.4 | $6.8M | 10k | 660.09 | |
| Amplitude Com Cl A (AMPL) | 0.3 | $6.5M | 560k | 11.58 | |
| Draftkings Com Cl A (DKNG) | 0.3 | $6.3M | 184k | 34.46 | |
| Frequency Electronics (FEIM) | 0.3 | $6.1M | 113k | 53.84 | |
| Dana Holding Corporation (DAN) | 0.3 | $6.0M | 252k | 23.76 | |
| Willdan (WLDN) | 0.3 | $6.0M | 58k | 103.66 | |
| Nu Skin Enterprises Cl A (NUS) | 0.3 | $5.7M | 597k | 9.62 | |
| Sweetgreen Com Cl A (SG) | 0.3 | $5.7M | 848k | 6.76 | |
| Forrester Research (FORR) | 0.3 | $5.7M | 706k | 8.12 | |
| Douglas Elliman (DOUG) | 0.3 | $5.6M | 2.4M | 2.37 | |
| Owlet Cl A New (OWLT) | 0.3 | $5.6M | 344k | 16.19 | |
| Okeanis Eco Tankers Cor SHS (ECO) | 0.3 | $5.5M | 162k | 33.84 | |
| Pulse Biosciences (PLSE) | 0.3 | $5.4M | 394k | 13.73 | |
| Gigacloud Technology Class A Ord (GCT) | 0.3 | $5.4M | 138k | 39.28 | |
| Vicor Corporation (VICR) | 0.3 | $5.3M | 49k | 109.60 | |
| Park Aerospace Corp. Cmn Pke (PKE) | 0.3 | $5.2M | 245k | 21.34 | |
| Green Dot Corp Cl A (GDOT) | 0.3 | $5.2M | 407k | 12.81 | |
| Bandwidth Com Cl A (BAND) | 0.3 | $5.2M | 337k | 15.45 | |
| eBay (EBAY) | 0.3 | $5.1M | 58k | 87.10 | |
| Fabrinet SHS (FN) | 0.3 | $5.0M | 11k | 455.28 | |
| Ies Hldgs (IESC) | 0.2 | $4.6M | 12k | 389.02 | |
| Fulgent Genetics (FLGT) | 0.2 | $4.5M | 170k | 26.27 | |
| Adeia (ADEA) | 0.2 | $4.4M | 256k | 17.25 | |
| Olaplex Hldgs (OLPX) | 0.2 | $4.1M | 3.1M | 1.34 | |
| Qiagen Nv Com Shs | 0.2 | $4.1M | 90k | 44.97 | |
| Ambarella SHS (AMBA) | 0.2 | $3.8M | 54k | 70.84 | |
| Similarweb SHS (SMWB) | 0.2 | $3.7M | 493k | 7.49 | |
| Natera (NTRA) | 0.2 | $3.6M | 16k | 229.09 | |
| Mobileye Global Common Class A (MBLY) | 0.2 | $3.6M | 342k | 10.44 | |
| Sprout Social Com Cl A (SPT) | 0.2 | $3.4M | 302k | 11.27 | |
| Mercury Computer Systems (MRCY) | 0.2 | $3.4M | 46k | 73.01 | |
| Tapestry (TPR) | 0.2 | $3.3M | 26k | 127.77 | |
| Oshkosh Corporation (OSK) | 0.2 | $3.3M | 26k | 125.63 | |
| Regal-beloit Corporation (RRX) | 0.2 | $3.2M | 23k | 140.32 | |
| Ouster Com New (OUST) | 0.2 | $3.1M | 145k | 21.64 | |
| Quantum Corp (QMCO) | 0.2 | $3.1M | 477k | 6.45 | |
| Personalis Ord (PSNL) | 0.2 | $3.0M | 379k | 7.96 | |
| Microsoft Corporation (MSFT) | 0.2 | $2.9M | 6.0k | 483.62 | |
| Super Micro Computer Com New (SMCI) | 0.2 | $2.8M | 97k | 29.27 | |
| Indie Semiconductor Class A Com (INDI) | 0.1 | $2.4M | 672k | 3.53 | |
| Tecogen Com New (TGEN) | 0.1 | $2.2M | 446k | 4.94 | |
| Alphabet Cap Stk Cl C (GOOG) | 0.1 | $2.2M | 7.0k | 313.80 | |
| Lumentum Hldgs (LITE) | 0.1 | $2.1M | 5.8k | 368.59 | |
| Alexandria Real Estate Equities (ARE) | 0.1 | $2.1M | 44k | 48.94 | |
| Gates Indl Corp Ord Shs (GTES) | 0.1 | $2.1M | 97k | 21.47 | |
| Xpeng Ads (XPEV) | 0.1 | $2.0M | 97k | 20.28 | |
| Sandridge Energy Com New (SD) | 0.1 | $1.9M | 134k | 14.43 | |
| Oracle Corporation (ORCL) | 0.1 | $1.9M | 9.6k | 194.91 | |
| Sharkninja Com Shs (SN) | 0.1 | $1.8M | 16k | 111.90 | |
| Casella Waste Sys Cl A (CWST) | 0.1 | $1.5M | 15k | 97.94 | |
| Vertiv Holdings Com Cl A (VRT) | 0.1 | $1.5M | 9.0k | 162.01 | |
| Planet Labs Pbc Com Cl A (PL) | 0.1 | $1.4M | 69k | 19.72 | |
| Talos Energy (TALO) | 0.1 | $1.3M | 119k | 11.02 | |
| Solaris Energy Infras Com Cl A (SEI) | 0.0 | $895k | 20k | 45.97 | |
| Reddit Cl A (RDDT) | 0.0 | $818k | 3.6k | 229.87 | |
| Everus Constr Group (ECG) | 0.0 | $747k | 8.7k | 85.56 | |
| L3harris Technologies (LHX) | 0.0 | $633k | 2.2k | 293.57 | |
| Shoals Technologies Group In Cl A (SHLS) | 0.0 | $619k | 73k | 8.50 | |
| GDS HLDGS Sponsored Ads (GDS) | 0.0 | $536k | 15k | 34.90 | |
| Newell Rubbermaid (NWL) | 0.0 | $469k | 126k | 3.72 | |
| Amplify Energy Corp (AMPY) | 0.0 | $407k | 89k | 4.57 | |
| Claros Mtg Tr Common Stock (CMTG) | 0.0 | $366k | 120k | 3.06 | |
| Weave Communications (WEAV) | 0.0 | $361k | 48k | 7.59 | |
| Lincoln Educational Services Corporation (LINC) | 0.0 | $338k | 14k | 24.15 | |
| Crescent Energy Company Cl A Com (CRGY) | 0.0 | $335k | 40k | 8.39 | |
| Harvard Bioscience (HBIO) | 0.0 | $274k | 410k | 0.67 |
