Q3 2025 · 13F-HR
Portolan Capital Management, LLCholdings as filed
Filed 2025-11-13 · accession 0001104659-25-111284
$1.85B
Reported value
119
Positions
2025-09-30
Period end
The Brief · Portolan Capital Management, LLC · Q3 2025
AI · grounded in 13F
Portolan Capital Management, LLC established a new position in Modine Mfg Co MOD valued at $85.6M. The fund also initiated new stakes in TTM Technologies Inc TTMI for $68.5M and E L F Beauty Inc ELF for $64.6M. Other new additions include DigitalBridge Group Inc DBRG and Celestica Inc CLS.
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 607828100 | MOD | MODINE MFG CO | $85.6M | 4.63% | 602,462 | Common | SOLE |
| 87305R109 | TTMI | TTM TECHNOLOGIES INC | $68.5M | 3.71% | 1,188,822 | Common | SOLE |
| 26856L103 | ELF | E L F BEAUTY INC | $64.6M | 3.49% | 487,525 | Common | SOLE |
| 25401T603 | DBRG | DIGITALBRIDGE GROUP INC | $64.0M | 3.46% | 5,468,226 | Common | SOLE |
| 15101Q207 | CLS | CELESTICA INC | $62.0M | 3.35% | 251,556 | Common | SOLE |
| 50077B207 | KTOS | KRATOS DEFENSE &SEC SOLUTIO | $54.5M | 2.95% | 596,106 | Common | SOLE |
| 816850101 | SMTC | SEMTECH CORP | $47.8M | 2.59% | 668,862 | Common | SOLE |
| 008073108 | AVAV | AEROVIRONMENT INC | $46.6M | 2.52% | 147,929 | Common | SOLE |
| 739128106 | POWL | POWELL INDS INC | $45.2M | 2.45% | 148,245 | Common | SOLE |
| M2197Q107 | CLBT | CELLEBRITE DI LTD | $44.8M | 2.43% | 2,419,662 | Common | SOLE |
| G3934V109 | GENI | GENIUS SPORTS LIMITED | $44.7M | 2.42% | 3,612,811 | Common | SOLE |
| 257554105 | DOMO | DOMO INC | $42.5M | 2.30% | 2,684,753 | Common | SOLE |
| 87422Q109 | TLN | TALEN ENERGY CORP | $40.3M | 2.18% | 94,717 | Common | SOLE |
| Y2573F102 | FLEX | FLEX LTD | $34.5M | 1.87% | 595,786 | Common | SOLE |
| 14843C105 | CSTL | CASTLE BIOSCIENCES INC | $34.5M | 1.87% | 1,515,111 | Common | SOLE |
| 135086106 | GOOS | CANADA GOOSE HLDGS INC | $30.0M | 1.62% | 2,174,001 | Common | SOLE |
| 92835K103 | VPG | VISHAY PRECISION GROUP INC | $26.4M | 1.43% | 823,298 | Common | SOLE |
| 733245104 | PRCH | PORCH GROUP INC | $25.7M | 1.39% | 1,534,303 | Common | SOLE |
| 438333106 | HNST | HONEST CO INC | $25.5M | 1.38% | 6,928,004 | Common | SOLE |
| 46571Y107 | IIIV | I3 VERTICALS INC | $24.3M | 1.31% | 747,656 | Common | SOLE |
| 75585H206 | REAX | THE REAL BROKERAGE INC | $24.1M | 1.30% | 5,769,203 | Common | SOLE |
| M87915274 | TSEM | TOWER SEMICONDUCTOR LTD | $23.7M | 1.28% | 327,305 | Common | SOLE |
| 68373M107 | OPRA | OPERA LTD | $23.2M | 1.26% | 1,124,085 | Common | SOLE |
| 74766Q101 | QTRX | QUANTERIX CORP | $23.1M | 1.25% | 4,259,851 | Common | SOLE |
| 65487K100 | LASR | NLIGHT INC | $22.8M | 1.23% | 769,788 | Common | SOLE |
| 978097103 | WWW | WOLVERINE WORLD WIDE INC | $21.9M | 1.18% | 796,627 | Common | SOLE |
| 39304D102 | GDOT | GREEN DOT CORP | $21.7M | 1.17% | 1,615,280 | Common | SOLE |
| 56146T103 | MAMA | MAMAS CREATIONS INC | $21.4M | 1.16% | 2,034,928 | Common | SOLE |
| 74164F103 | PRIM | PRIMORIS SVCS CORP | $20.5M | 1.11% | 149,241 | Common | SOLE |
| 98956A105 | ZETA | ZETA GLOBAL HOLDINGS CORP | $20.4M | 1.10% | 1,025,195 | Common | SOLE |
| 73933G202 | PSIX | POWER SOLUTIONS INTL INC | $19.2M | 1.04% | 195,804 | Common | SOLE |
| 336433107 | FSLR | FIRST SOLAR INC | $18.3M | 0.99% | 83,198 | Common | SOLE |
| 93403J106 | WRBY | WARBY PARKER INC | $17.8M | 0.96% | 646,088 | Common | SOLE |
| 077347300 | BELFB | BEL FUSE INC | $17.5M | 0.94% | 123,766 | Common | SOLE |
| 750491102 | RDNT | RADNET INC | $17.3M | 0.93% | 226,669 | Common | SOLE |
| M98068105 | WIX | WIX COM LTD | $17.0M | 0.92% | 95,809 | Common | SOLE |
| 00108J109 | ACMR | ACM RESH INC | $15.9M | 0.86% | 405,860 | Common | SOLE |
| 516544103 | LNTH | LANTHEUS HLDGS INC | $15.2M | 0.82% | 297,208 | Common | SOLE |
| 92537N108 | VRT | VERTIV HOLDINGS CO | $15.2M | 0.82% | 100,599 | Common | SOLE |
| 82452J109 | FOUR | SHIFT4 PMTS INC | $14.6M | 0.79% | 188,761 | Common | SOLE |
| 83418M103 | SEI | SOLARIS ENERGY INFRAS INC | $14.5M | 0.79% | 363,440 | Common | SOLE |
| 86800U302 | SMCI | SUPER MICRO COMPUTER INC | $14.2M | 0.77% | 296,341 | Common | SOLE |
| 03823U102 | AAOI | APPLIED OPTOELECTRONICS INC | $14.2M | 0.77% | 546,219 | Common | SOLE |
| 26142V105 | DKNG | DRAFTKINGS INC NEW | $13.9M | 0.75% | 372,002 | Common | SOLE |
| 14167L103 | CDNA | CAREDX INC | $13.6M | 0.73% | 933,532 | Common | SOLE |
| 55406W103 | LUXE | LUXEXPERIENCE BV | $13.3M | 0.72% | 1,561,266 | Common | SOLE |
| 090572207 | BIO | BIO RAD LABS INC | $13.0M | 0.70% | 46,440 | Common | SOLE |
| 55826T102 | SPHR | SPHERE ENTERTAINMENT CO | $12.9M | 0.70% | 208,418 | Common | SOLE |
| 532257805 | LPTH | LIGHTPATH TECHNOLOGIES INC | $12.9M | 0.70% | 1,631,622 | Common | SOLE |
| N30577105 | ZGN | ERMENEGILDO ZEGNA N V | $12.9M | 0.70% | 1,369,176 | Common | SOLE |
| 171779309 | CIEN | CIENA CORP | $12.9M | 0.70% | 88,786 | Common | SOLE |
| 05988J103 | BAND | BANDWIDTH INC | $12.4M | 0.67% | 745,802 | Common | SOLE |
| 019330109 | ALNT | ALLIENT INC | $11.5M | 0.62% | 257,653 | Common | SOLE |
| 76029L100 | RPAY | REPAY HLDGS CORP | $11.4M | 0.62% | 2,182,925 | Common | SOLE |
| 874054109 | TTWO | TAKE-TWO INTERACTIVE SOFTWAR | $11.3M | 0.61% | 43,611 | Common | SOLE |
| 29357K103 | ENVA | ENOVA INTL INC | $11.3M | 0.61% | 97,817 | Common | SOLE |
| M84137104 | SMWB | SIMILARWEB LTD | $11.0M | 0.59% | 1,179,000 | Common | SOLE |
| G3323L100 | FN | FABRINET | $10.5M | 0.57% | 28,770 | Common | SOLE |
| 567908108 | HZO | MARINEMAX INC | $9.9M | 0.54% | 392,713 | Common | SOLE |
| 501270102 | KRUS | KURA SUSHI USA INC | $9.9M | 0.54% | 167,408 | Common | SOLE |
| 15118V207 | CELH | CELSIUS HLDGS INC | $9.4M | 0.51% | 164,031 | Common | SOLE |
| G39108108 | GTES | GATES INDL CORP PLC | $9.1M | 0.49% | 366,945 | Common | SOLE |
| 224441105 | CXT | CRANE NXT CO | $8.9M | 0.48% | 131,989 | Common | SOLE |
| 30303M102 | META | META PLATFORMS INC | $8.6M | 0.46% | 11,688 | Common | SOLE |
| 72703X106 | PL | PLANET LABS PBC | $8.2M | 0.44% | 630,964 | Common | SOLE |
| 55024U109 | LITE | LUMENTUM HLDGS INC | $8.0M | 0.44% | 49,457 | Common | SOLE |
| 75734B100 | RDDT | REDDIT INC | $7.9M | 0.43% | 34,550 | Common | SOLE |
| 09263B207 | BKSY | BLACKSKY TECHNOLOGY INC | $7.9M | 0.43% | 389,802 | Common | SOLE |
| 68373J104 | LPRO | OPEN LENDING CORP | $7.8M | 0.42% | 3,673,890 | Common | SOLE |
| 89377M109 | TMDX | TRANSMEDICS GROUP INC | $7.7M | 0.42% | 68,910 | Common | SOLE |
| 91307C102 | UTHR | UNITED THERAPEUTICS CORP DEL | $7.6M | 0.41% | 18,076 | Common | SOLE |
| 368736104 | GNRC | GENERAC HLDGS INC | $7.5M | 0.41% | 45,031 | Common | SOLE |
| 533535100 | LINC | LINCOLN EDL SVCS CORP | $7.5M | 0.41% | 319,878 | Common | SOLE |
| 860372101 | STC | STEWART INFORMATION SVCS COR | $7.5M | 0.40% | 101,782 | Common | SOLE |
| 91688F104 | UPWK | UPWORK INC | $7.3M | 0.40% | 393,929 | Common | SOLE |
| G87264100 | TGLS | TECNOGLASS INC | $7.3M | 0.40% | 109,265 | Common | SOLE |
| 67018T105 | NUS | NU SKIN ENTERPRISES INC | $7.3M | 0.39% | 596,724 | Common | SOLE |
| 137404109 | CADL | CANDEL THERAPEUTICS INC | $7.1M | 0.38% | 1,384,142 | Common | SOLE |
| 358010106 | FEIM | FREQUENCY ELECTRS INC | $6.9M | 0.37% | 203,827 | Common | SOLE |
| 25961D105 | DOUG | DOUGLAS ELLIMAN INC | $6.7M | 0.36% | 2,353,950 | Common | SOLE |
| G31249108 | ESTA | ESTABLISHMENT LABS HLDGS INC | $6.4M | 0.34% | 155,096 | Common | SOLE |
| 00510N102 | TIC | ACUREN CORP | $6.3M | 0.34% | 472,954 | Common | SOLE |
| G38644103 | GCT | GIGACLOUD TECHNOLOGY INC | $6.3M | 0.34% | 220,387 | Common | SOLE |
| 300426103 | ECG | EVERUS CONSTR GROUP | $6.3M | 0.34% | 72,930 | Common | SOLE |
| 539830109 | LMT | LOCKHEED MARTIN CORP | $6.2M | 0.34% | 12,506 | Common | SOLE |
| 82489W107 | SHLS | SHOALS TECHNOLOGIES GROUP IN | $6.0M | 0.33% | 815,205 | Common | SOLE |
| 02361E108 | AMRC | AMERESCO INC | $5.9M | 0.32% | 174,903 | Common | SOLE |
| 90138A103 | VNET | VNET GROUP INC | $5.9M | 0.32% | 567,466 | Common | SOLE |
| 683344105 | ONTO | ONTO INNOVATION INC | $5.8M | 0.31% | 44,564 | Common | SOLE |
| 346563109 | FORR | FORRESTER RESH INC | $5.4M | 0.29% | 513,872 | Common | SOLE |
| 87876P201 | TGEN | TECOGEN INC NEW | $5.2M | 0.28% | 595,806 | Common | SOLE |
| 52736R102 | LEVI | LEVI STRAUSS &CO NEW | $5.0M | 0.27% | 214,221 | Common | SOLE |
| 70014A104 | PKE | PARK AEROSPACE CORP | $5.0M | 0.27% | 245,035 | Common | SOLE |
| 74319R101 | PRG | PROG HOLDINGS INC | $4.9M | 0.26% | 150,161 | Common | SOLE |
| 679369108 | OLPX | OLAPLEX HLDGS INC | $4.8M | 0.26% | 3,635,124 | Common | SOLE |
| 81663L200 | WGS | GENEDX HOLDINGS CORP | $4.7M | 0.26% | 44,048 | Common | SOLE |
| 82982T106 | SITM | SITIME CORP | $4.7M | 0.25% | 15,503 | Common | SOLE |
| G96115103 | WYFI | WHITEFIBER INC | $4.4M | 0.24% | 160,669 | Common | SOLE |
| 23204X103 | CTOS | CUSTOM TRUCK ONE SOURCE INC | $4.2M | 0.23% | 649,076 | Common | SOLE |
| 774515100 | RCKY | ROCKY BRANDS INC | $3.8M | 0.21% | 128,307 | Common | SOLE |
| H8088L103 | SRAD | SPORTRADAR GROUP AG | $3.5M | 0.19% | 131,810 | Common | SOLE |
| 589378108 | MRCY | MERCURY SYS INC | $3.5M | 0.19% | 44,864 | Common | SOLE |
| 594918104 | MSFT | MICROSOFT CORP | $3.1M | 0.17% | 5,972 | Common | SOLE |
| 876030107 | TPR | TAPESTRY INC | $2.9M | 0.16% | 25,868 | Common | SOLE |
| 68389X105 | ORCL | ORACLE CORP | $2.7M | 0.15% | 9,560 | Common | SOLE |
| 87043Q108 | SG | SWEETGREEN INC | $2.5M | 0.14% | 318,147 | Common | SOLE |
| 632307104 | NTRA | NATERA INC | $2.5M | 0.14% | 15,588 | Common | SOLE |
| 74587B101 | PLSE | PULSE BIOSCIENCES INC | $1.8M | 0.10% | 102,197 | Common | SOLE |
| 75321W103 | PACK | RANPAK HOLDINGS CORP | $1.8M | 0.10% | 315,456 | Common | SOLE |
| 02079K107 | GOOG | ALPHABET INC | $1.7M | 0.09% | 6,992 | Common | SOLE |
| 96924N100 | WLDN | WILLDAN GROUP INC | $1.7M | 0.09% | 17,344 | Common | SOLE |
| 502431109 | LHX | L3HARRIS TECHNOLOGIES INC | $1.5M | 0.08% | 5,051 | Common | SOLE |
| 147448104 | CWST | CASELLA WASTE SYS INC | $1.4M | 0.08% | 15,225 | Common | SOLE |
| 97717P104 | WT | WISDOMTREE INC | $983,870 | 0.05% | 70,782 | Common | SOLE |
| 84920Y106 | SPWH | SPORTSMANS WHSE HLDGS INC | $841,526 | 0.05% | 303,800 | Common | SOLE |
| 056752108 | BIDU | BAIDU INC | $603,507 | 0.03% | 4,580 | Common | SOLE |
| 36165L108 | GDS | GDS HLDGS LTD | $544,277 | 0.03% | 14,064 | Common | SOLE |
| 09624H208 | BXC | BLUELINX HLDGS INC | $489,636 | 0.03% | 6,700 | Common | SOLE |
| 92259N302 | VELO | VELO3D INC | $183,957 | 0.01% | 59,921 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.