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13F-HR filed by Portolan Capital Management, LLC

Portolan Capital Management, LLC filed this 13F-HR for the quarter ended 2025-12-31, filed 2026-02-17, with 155 holding rows worth $1,866,423,741.

Accession
0001104659-26-016304
Filed
2026-02-17
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2025

A holdings report, 155 entries on the cover page, a total value of $1,866,423,741 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,866,423,741 with VALUE read as dollars as filed, 13F file number 028-11602. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
TTM TECHNOLOGIES INC87305R109COM1,146,682$79,121,058dollars as filed
MODINE MFG CO COM607828100Stock535,947$71,554,284dollars as filed
CASTLE BIOSCIENCES INC14843C105COMMON STOCK1,729,463$67,276,111dollars as filed
CELESTICA INC COM15101Q207Stock172,275$50,926,213dollars as filed
AKAMAI TECHNOLOGIES INC COM00971T101Stock524,321$45,747,007dollars as filed
THE REAL BROKERAGE INC75585H206COM NEW10,779,843$39,346,427dollars as filed
SEMTECH CORP COM816850101Stock508,655$37,482,787dollars as filed
BAIDU INC SPON ADR REP A056752108ADR263,681$34,452,559dollars as filed
VISHAY PRECISION GROUP INC92835K103COM877,669$33,790,257dollars as filed
GENIUS SPORTS LIMITED SHARES CL AG3934V109Stock2,938,119$32,378,071dollars as filed
LANTHEUS HLDGS INC516544103COM475,789$31,663,758dollars as filed
SHIFT4 PMTS INC CL A82452J109Stock468,063$29,473,927dollars as filed
QUANTERIX CORP74766Q101COMMON STOCK4,525,553$28,782,517dollars as filed
FLEX LTD ORDY2573F102Stock466,913$28,210,883dollars as filed
TALEN ENERGY CORP COM87422Q109Stock74,984$28,107,003dollars as filed
CANADA GOOSE HLDGS INC SHS SUB VTG135086106Stock2,138,904$27,698,807dollars as filed
WARBY PARKER INC93403J106CL A COM1,232,173$26,849,050dollars as filed
ZETA GLOBAL HOLDINGS CORP CL A98956A105Stock1,318,797$26,837,519dollars as filed
POWELL INDS INC739128106COM79,116$25,220,598dollars as filed
LIGHTPATH TECHNOLOGIES INC532257805COM CL A2,332,184$25,187,587dollars as filed
BEL FUSE INC077347300CL B139,513$23,665,590dollars as filed
CELLEBRITE DI LTD ORDINARY SHARESM2197Q107Stock1,287,287$23,209,785dollars as filed
KRATOS DEFENSE & SEC SOLUTIO50077B207COM NEW294,006$22,317,995dollars as filed
LUXEXPERIENCE BV55406W103SPONSORED ADS2,660,674$22,216,628dollars as filed
NLIGHT INC65487K100COM590,433$22,147,142dollars as filed
FIRST SOLAR INC COM336433107Stock78,761$20,574,736dollars as filed
FIRST AMERN FINL CORP31847R102COM320,670$19,701,965dollars as filed
PORCH GROUP INC733245104COM2,083,055$19,018,292dollars as filed
AEROVIRONMENT INC COM008073108Stock75,958$18,373,481dollars as filed
DOMO INC257554105COM CL B2,158,770$18,198,431dollars as filed
UNITED THERAPEUTICS CORP DEL COM91307C102Stock36,753$17,907,899dollars as filed
TOWER SEMICONDUCTOR LTD SHS NEWM87915274Stock148,525$17,439,806dollars as filed
I3 VERTICALS INC46571Y107COM CL A671,987$16,927,353dollars as filed
MAMAS CREATIONS INC COM56146T103Stock1,245,767$16,805,397dollars as filed
SPHERE ENTERTAINMENT CO CL A55826T102Stock175,646$16,700,422dollars as filed
ALLIENT INC019330109COM301,888$16,226,480dollars as filed
JABIL INC COM466313103Stock70,665$16,113,033dollars as filed
MAREX GROUP PLCG5S37H101COMMON STOCK418,745$16,063,058dollars as filed
ENOVA INTL INC29357K103COM97,847$15,381,548dollars as filed
BIOGEN INC COM09062X103Stock84,990$14,957,390dollars as filed
BIO-TECHNE CORP09073M104COM249,070$14,647,807dollars as filed
FREEPORT MCMORAN INC CL B35671D857Stock288,124$14,633,818dollars as filed
ELFBEAUTYINC26856L103STOK192,322$14,624,165dollars as filed
CAREDX INC14167L103COM758,775$14,295,321dollars as filed
UPWORK INC91688F104COM719,644$14,263,344dollars as filed
MAGNA INTL INC COM559222401Stock255,481$13,617,137dollars as filed
CIENA CORP COM NEW171779309Stock56,481$13,209,211dollars as filed
PRIMORIS SVCS CORP COM74164F103Stock105,716$13,123,584dollars as filed
NOVANTA INC67000B104COM107,095$12,743,234dollars as filed
DIGITALBRIDGE GROUP INC25401T603CL A NEW824,946$12,654,672dollars as filed
VIRTU FINL INC928254101CL A376,283$12,537,750dollars as filed
HONEST CO INC438333106COM4,804,206$12,394,851dollars as filed
SNAP INC83304A106CL A1,496,410$12,076,029dollars as filed
TECNOGLASS INCG87264100ORD SHS238,852$12,019,033dollars as filed
MARINEMAX INC567908108COM487,426$11,810,332dollars as filed
TRANSMEDICS GROUP INC89377M109COM96,893$11,787,033dollars as filed
CORE NATURAL RESOURCES INC218937100COM SHS130,242$11,527,719dollars as filed
ACM RESH INC COM CL A00108J109Stock285,506$11,263,212dollars as filed
SEZZLE INC78435P105COM167,873$10,655,739dollars as filed
GUARDANT HEALTH INC COM40131M109Stock104,088$10,631,548dollars as filed
RANPAK HOLDINGS CORP75321W103COMMON STOCK1,950,730$10,553,449dollars as filed
BIO RAD LABS INC090572207CL A34,159$10,349,835dollars as filed
DIGI INTL INC253798102COM237,550$10,283,540dollars as filed
ZILLOW GROUP INC CLASS A98954M101CL A150,068$10,239,140dollars as filed
REPAY HLDGS CORP76029L100COM CL A2,790,281$10,184,526dollars as filed
RAMACO RES INC75134P600COM CL A561,718$10,110,924dollars as filed
SANMINA CORP COM801056102Stock66,589$9,993,011dollars as filed
KURA SUSHI USA INC501270102CL A COM190,796$9,984,355dollars as filed
EXZEO GROUP INC30234F101COMMON STOCK405,014$9,821,590dollars as filed
DAVE INC23834J201CLASS A COM NEW44,001$9,742,261dollars as filed
TAKE-TWO INTERACTIVE SOFTWARE COM874054109Stock37,687$9,649,003dollars as filed
MAYVILLE ENGINEERING CO INC578605107COMMON STOCK512,762$9,598,905dollars as filed
CANDEL THERAPEUTICS INC137404109COMMON STOCK1,695,367$9,578,824dollars as filed
OPERA LTD SPONSORED ADS68373M107ADR631,177$8,937,466dollars as filed
REMITLY GLOBAL INC75960P104COM628,019$8,666,662dollars as filed
WATERS CORP COM941848103Stock22,379$8,500,216dollars as filed
RADNET INC750491102COM117,506$8,384,053dollars as filed
WIX COM LTD SHSM98068105Stock80,298$8,342,159dollars as filed
STEWART INFORMATION SVCS COR860372101COM117,708$8,270,164dollars as filed
PROCEPT BIOROBOTICS CORP COM74276L105Stock255,118$8,026,012dollars as filed
APPLIED OPTOELECTRONICS INC03823U102COM228,458$7,964,046dollars as filed
OPEN LENDING CORP68373J104COM4,736,630$7,341,777dollars as filed
ERMENEGILDO ZEGNA NVN30577105COMMON STOCK710,534$7,282,974dollars as filed
GENEDX HOLDINGS CORP81663L200COM CL A55,776$7,254,227dollars as filed
NOKIA CORP654902204SPONSORED ADR1,076,122$6,962,509dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock79,789$6,950,420dollars as filed
ESTABLISHMENT LABS HOLDINGSG31249108COMMON STOCK94,648$6,897,946dollars as filed
QUALYS INC COM74758T303Stock51,855$6,891,530dollars as filed
VNET GROUP INC90138A103SPONSORED ADS A806,800$6,825,528dollars as filed
META PLATFORMS INC CL A30303M102COM10,318$6,810,809dollars as filed
AMPLITUDE INC COM CL A03213A104Stock560,096$6,485,912dollars as filed
DRAFTKINGS INC NEW26142V105COM CL A183,778$6,332,990dollars as filed
FREQUENCY ELECTRONICS INC358010106COMMON STOCK113,076$6,088,012dollars as filed
DANA INC235825205COM252,423$5,997,570dollars as filed
WILLDAN GROUP INC96924N100COM57,613$5,972,164dollars as filed
NU SKIN ENTERPRISES INC67018T105CL A596,724$5,740,485dollars as filed
SWEETGREEN INC87043Q108COM CL A848,085$5,733,055dollars as filed
FORRESTER RESH INC346563109COM705,749$5,730,682dollars as filed
DOUGLAS ELLIMAN INC25961D105COM2,353,950$5,578,862dollars as filed
OWLET INC69120X206CL A NEW343,543$5,561,961dollars as filed
OKEANIS ECO TANKERS COR SHSY64177101Stock161,815$5,475,820dollars as filed
PULSE BIOSCIENCES INC74587B101COMMON STOCK393,499$5,402,741dollars as filed
GIGACLOUD TECHNOLOGY INCG38644103CLASS A ORD137,478$5,400,136dollars as filed
VICOR CORP925815102COM48,721$5,339,822dollars as filed
PARK AEROSPACE CORP70014A104COM245,035$5,229,047dollars as filed
GREEN DOT CORP CLASS A39304D102CL A406,734$5,210,263dollars as filed
BANDWIDTH INC05988J103COM CL A336,874$5,204,703dollars as filed
EBAY INC. COM278642103Stock58,144$5,064,342dollars as filed
FABRINET SHSG3323L100Stock10,878$4,952,536dollars as filed
IES HOLDINGS INC44951W106COM11,792$4,587,324dollars as filed
FULGENT GENETICS INC359664109COM169,590$4,455,129dollars as filed
ADEIA INC00676P107COM256,208$4,419,588dollars as filed
OLAPLEX HLDGS INC679369108COM3,082,600$4,130,684dollars as filed
QIAGEN NVN72482206COM SHS90,182$4,055,485dollars as filed
AMBARELLA INCG037AX101SHS54,242$3,842,503dollars as filed
SIMILARWEB LTDM84137104SHS492,861$3,691,529dollars as filed
NATERA INC COM632307104Stock15,588$3,571,055dollars as filed
MOBILEYE GLOBAL INC60741F104COMMON CLASS A341,936$3,569,812dollars as filed
SPROUT SOCIAL INC COM CL A85209W109Stock301,473$3,397,601dollars as filed
MERCURY SYS INC COM589378108Stock46,348$3,383,867dollars as filed
TAPESTRY INC COM876030107Stock25,868$3,305,154dollars as filed
OSHKOSH CORP COM688239201Stock25,940$3,258,842dollars as filed
REGAL REXNORD CORPORATION758750103COM23,098$3,241,111dollars as filed
OUSTER INC COM NEW68989M202Stock145,148$3,141,003dollars as filed
QUANTUM CORPORATION747906600COM477,214$3,078,030dollars as filed
PERSONALIS INC71535D106COMMON STOCK379,197$3,018,408dollars as filed
Microsoft Corp594918104COM5,972$2,888,179dollars as filed
SUPER MICRO COMPUTER INC86800U302COM NEW96,544$2,825,843dollars as filed
INDIE SEMICONDUCTOR INC45569U101CLASS A COM671,998$2,372,153dollars as filed
TECOGEN INC NEW87876P201COM NEW445,810$2,202,301dollars as filed
Alphabet Inc. Reg. Shares C02079K107COM6,992$2,194,090dollars as filed
LUMENTUM HLDGS INC COM55024U109Stock5,822$2,145,931dollars as filed
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT43,555$2,131,582dollars as filed
GATES INDL CORP PLCG39108108ORD SHS97,125$2,085,274dollars as filed
XPENG INC ADS98422D105ADR96,927$1,965,680dollars as filed
SANDRIDGE ENERGY INC80007P869COM NEW134,000$1,933,620dollars as filed
Oracle Corporation68389X105COM9,560$1,863,340dollars as filed
SHARKNINJA INC COM SHSG8068L108Stock15,907$1,779,993dollars as filed
CASELLA WASTE SYS INC147448104CL A15,225$1,491,137dollars as filed
VERTIV HOLDINGS CO COM CL A92537N108Stock9,039$1,464,408dollars as filed
PLANET LABS PBC72703X106COM CL A68,715$1,355,060dollars as filed
TALOS ENERGY INC87484T108COM119,100$1,312,482dollars as filed
SOLARIS ENERGY INFRAS INC COM CL A83418M103Stock19,474$895,220dollars as filed
REDDIT INC CL A75734B100Stock3,558$817,877dollars as filed
EVERUS CONSTR GROUP COM300426103Stock8,725$746,511dollars as filed
L3HARRIS TECHNOLOGIES INC COM502431109Stock2,157$633,230dollars as filed
SHOALS TECHNOLOGIES GROUP INC CL A82489W107Stock72,781$618,639dollars as filed
GDS HLDGS LTD SPONSORED ADS36165L108ADR15,359$536,029dollars as filed
NEWELL BRANDS INC COM651229106Stock126,100$469,092dollars as filed
Amplify Energy Corp03212B103COM89,063$407,018dollars as filed
CLAROS MORTGAGE TRUST INC18270D106REIT119,700$366,282dollars as filed
WEAVE COMMUNICATIONS INC94724R108COM47,600$361,284dollars as filed
LINCOLN EDL SVCS CORP533535100COM14,007$338,269dollars as filed
CRESCENT ENERGY COMPANY CL A COM44952J104Stock39,900$334,761dollars as filed
HARVARD BIOSCIENCE INC416906105COM409,650$273,974dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001104659-26-016304this filing2026-02-17acceptance time not in the bulk data set