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Portolan Capital Management, LLC

Q2 2025 · 13F-HR

Portolan Capital Management, LLCholdings as filed

Filed 2025-08-13 · accession 0001104659-25-077571

$1.59B
Reported value
118
Positions
2025-06-30
Period end
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The Brief · Portolan Capital Management, LLC · Q2 2025

AI · grounded in 13F

Portolan Capital Management, LLC established a new position in Celestica Inc CLS valued at $85.8M. The fund also initiated new stakes in Kratos Defense & Security Solutions KTOS for $61.7M and e.l.f. Beauty Inc ELF for $58.1M. Additional new positions include AeroVironment Inc AVAV and Modine Mfg Co MOD.

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
15101Q207CLSCELESTICA INC$85.8M5.38%549,593CommonSOLE
50077B207KTOSKRATOS DEFENSE &SEC SOLUTIO$61.7M3.87%1,328,423CommonSOLE
26856L103ELFE L F BEAUTY INC$58.1M3.64%466,838CommonSOLE
008073108AVAVAEROVIRONMENT INC$51.0M3.19%178,816CommonSOLE
607828100MODMODINE MFG CO$48.5M3.04%492,316CommonSOLE
87305R109TTMITTM TECHNOLOGIES INC$45.9M2.88%1,124,157CommonSOLE
82452J109FOURSHIFT4 PMTS INC$43.1M2.70%435,175CommonSOLE
G3934V109GENIGENIUS SPORTS LIMITED$42.5M2.66%4,086,364CommonSOLE
739128106POWLPOWELL INDS INC$35.9M2.25%170,558CommonSOLE
25401T603DBRGDIGITALBRIDGE GROUP INC$31.9M2.00%3,082,160CommonSOLE
438333106HNSTHONEST CO INC$31.6M1.98%6,217,353CommonSOLE
14843C105CSTLCASTLE BIOSCIENCES INC$30.4M1.91%1,489,572CommonSOLE
733245104PRCHPORCH GROUP INC$28.8M1.81%2,442,843CommonSOLE
92835K103VPGVISHAY PRECISION GROUP INC$27.8M1.74%990,439CommonSOLE
46571Y107IIIVI3 VERTICALS INC$26.4M1.66%961,615CommonSOLE
55406W103LUXELUXEXPERIENCE BV$24.3M1.52%3,060,537CommonSOLE
74766Q101QTRXQUANTERIX CORP$24.2M1.52%3,633,622CommonSOLE
Y2573F102FLEXFLEX LTD$24.0M1.50%480,604CommonSOLE
78442P106SLMSLM CORP$23.3M1.46%710,291CommonSOLE
26142V105DKNGDRAFTKINGS INC NEW$21.0M1.32%490,547CommonSOLE
516544103LNTHLANTHEUS HLDGS INC$20.8M1.31%254,477CommonSOLE
93403J106WRBYWARBY PARKER INC$20.8M1.31%949,277CommonSOLE
73754Y100PTBPOTBELLY CORP$20.4M1.28%1,667,702CommonSOLE
98956A105ZETAZETA GLOBAL HOLDINGS CORP$20.4M1.28%1,315,690CommonSOLE
750491102RDNTRADNET INC$19.4M1.22%341,355CommonSOLE
87422Q109TLNTALEN ENERGY CORP$19.1M1.20%65,591CommonSOLE
876030107TPRTAPESTRY INC$19.0M1.19%216,711CommonSOLE
75134P600METCRAMACO RES INC$18.6M1.17%1,419,285CommonSOLE
56146T103MAMAMAMAS CREATIONS INC$18.0M1.13%2,165,550CommonSOLE
816850101SMTCSEMTECH CORP$17.1M1.07%379,018CommonSOLE
135086106GOOSCANADA GOOSE HLDGS INC$16.6M1.04%1,487,497CommonSOLE
68373M107OPRAOPERA LTD$16.6M1.04%876,440CommonSOLE
M2197Q107CLBTCELLEBRITE DI LTD$16.2M1.02%1,011,844CommonSOLE
257554105DOMODOMO INC$15.5M0.97%1,107,869CommonSOLE
G39108108GTESGATES INDL CORP PLC$15.2M0.95%658,829CommonSOLE
090572207BIOBIO RAD LABS INC$15.2M0.95%62,784CommonSOLE
39304D102GDOTGREEN DOT CORP$15.1M0.95%1,401,128CommonSOLE
81663L200WGSGENEDX HOLDINGS CORP$15.0M0.94%162,228CommonSOLE
501270102KRUSKURA SUSHI USA INC$14.8M0.93%172,081CommonSOLE
016255101ALGNALIGN TECHNOLOGY INC$12.8M0.80%67,739CommonSOLE
502431109LHXL3HARRIS TECHNOLOGIES INC$12.4M0.78%49,516CommonSOLE
14167L103CDNACAREDX INC$12.3M0.77%629,977CommonSOLE
928254101VIRTVIRTU FINL INC$12.2M0.77%273,367CommonSOLE
70451X104PAYOPAYONEER GLOBAL INC$12.0M0.75%1,757,334CommonSOLE
03823U102AAOIAPPLIED OPTOELECTRONICS INC$11.7M0.73%455,322CommonSOLE
68376D104OPRTOPORTUN FINL CORP$11.6M0.73%1,619,470CommonSOLE
G87264100TGLSTECNOGLASS INC$11.6M0.73%149,816CommonSOLE
099406100BOOTBOOT BARN HLDGS INC$11.4M0.71%74,942CommonSOLE
29357K103ENVAENOVA INTL INC$10.9M0.68%97,931CommonSOLE
874054109TTWOTAKE-TWO INTERACTIVE SOFTWAR$10.6M0.66%43,660CommonSOLE
96924N100WLDNWILLDAN GROUP INC$10.5M0.66%168,546CommonSOLE
N30577105ZGNERMENEGILDO ZEGNA N V$10.1M0.63%1,183,986CommonSOLE
446413106HIIHUNTINGTON INGALLS INDS INC$10.0M0.63%41,501CommonSOLE
92537N108VRTVERTIV HOLDINGS CO$9.9M0.62%76,715CommonSOLE
H8088L103SRADSPORTRADAR GROUP AG$9.6M0.60%341,799CommonSOLE
533535100LINCLINCOLN EDL SVCS CORP$9.1M0.57%394,553CommonSOLE
75585H206REAXTHE REAL BROKERAGE INC$9.0M0.56%1,985,922CommonSOLE
91307C102UTHRUNITED THERAPEUTICS CORP DEL$8.8M0.55%30,763CommonSOLE
402635502GPORGULFPORT ENERGY CORP$8.7M0.55%43,376CommonSOLE
30303M102METAMETA PLATFORMS INC$8.6M0.54%11,715CommonSOLE
268603107LOCOEL POLLO LOCO HLDGS INC$8.3M0.52%751,012CommonSOLE
75734B100RDDTREDDIT INC$8.2M0.51%54,517CommonSOLE
137404109CADLCANDEL THERAPEUTICS INC$8.2M0.51%1,621,728CommonSOLE
97717P104WTWISDOMTREE INC$7.9M0.49%682,368CommonSOLE
74164F103PRIMPRIMORIS SVCS CORP$7.8M0.49%99,449CommonSOLE
567908108HZOMARINEMAX INC$7.7M0.49%307,988CommonSOLE
87043Q108SGSWEETGREEN INC$7.7M0.48%516,409CommonSOLE
013091103ACIALBERTSONS COS INC$7.6M0.47%351,629CommonSOLE
42225T107HCATHEALTH CATALYST INC$7.5M0.47%1,980,409CommonSOLE
539830109LMTLOCKHEED MARTIN CORP$7.4M0.46%15,981CommonSOLE
488401100KMPRKEMPER CORP$7.1M0.44%109,417CommonSOLE
71367G102PWPPERELLA WEINBERG PARTNERS$6.9M0.43%352,886CommonSOLE
G4124C109GRABGRAB HOLDINGS LIMITED$6.8M0.43%1,354,131CommonSOLE
053604104AVPTAVEPOINT INC$6.2M0.39%322,743CommonSOLE
62855J104MYGNMYRIAD GENETICS INC$6.2M0.39%1,163,400CommonSOLE
077347300BELFBBEL FUSE INC$6.1M0.38%62,526CommonSOLE
G3323L100FNFABRINET$5.7M0.36%19,416CommonSOLE
M84137104SMWBSIMILARWEB LTD$5.7M0.36%727,592CommonSOLE
05988J103BANDBANDWIDTH INC$5.5M0.34%345,571CommonSOLE
94724R108WEAVWEAVE COMMUNICATIONS INC$5.4M0.34%648,765CommonSOLE
343412102FLRFLUOR CORP NEW$5.4M0.34%104,810CommonSOLE
G31249108ESTAESTABLISHMENT LABS HLDGS INC$5.3M0.33%124,392CommonSOLE
10948C107BVBRIGHTVIEW HLDGS INC$5.1M0.32%306,576CommonSOLE
338307101FIVNFIVE9 INC$5.0M0.31%187,711CommonSOLE
64111Q104NTGRNETGEAR INC$4.9M0.31%169,294CommonSOLE
86800U302SMCISUPER MICRO COMPUTER INC$4.8M0.30%98,548CommonSOLE
M87915274TSEMTOWER SEMICONDUCTOR LTD$4.8M0.30%109,632CommonSOLE
751212101RLRALPH LAUREN CORP$4.7M0.29%17,029CommonSOLE
774515100RCKYROCKY BRANDS INC$4.6M0.29%209,186CommonSOLE
84920Y106SPWHSPORTSMANS WHSE HLDGS INC$4.6M0.29%1,325,668CommonSOLE
G38644103GCTGIGACLOUD TECHNOLOGY INC$4.6M0.29%230,903CommonSOLE
B9151N105TTAMTITAN AMER SA$4.5M0.28%359,435CommonSOLE
09624H208BXCBLUELINX HLDGS INC$4.4M0.28%59,102CommonSOLE
227046109CROXCROCS INC$4.3M0.27%42,750CommonSOLE
25961D105DOUGDOUGLAS ELLIMAN INC$4.3M0.27%1,831,991CommonSOLE
78454L100SMSM ENERGY CO$4.2M0.26%170,194CommonSOLE
243537107DECKDECKERS OUTDOOR CORP$4.1M0.26%39,681CommonSOLE
358039105FRPTFRESHPET INC$3.8M0.24%56,299CommonSOLE
70202L102PSNPARSONS CORP DEL$3.7M0.23%51,707CommonSOLE
758750103RRXREGAL REXNORD CORPORATION$3.6M0.23%24,943CommonSOLE
21900C308CRMDCORMEDIX INC$3.5M0.22%283,663CommonSOLE
346563109FORRFORRESTER RESH INC$3.5M0.22%351,726CommonSOLE
632307104NTRANATERA INC$3.5M0.22%20,559CommonSOLE
15118V207CELHCELSIUS HLDGS INC$3.4M0.21%72,858CommonSOLE
G5S37H101MRXMAREX GROUP PLC$3.3M0.21%83,759CommonSOLE
87876P201TGENTECOGEN INC NEW$3.2M0.20%465,571CommonSOLE
594918104MSFTMICROSOFT CORP$3.1M0.20%6,297CommonSOLE
68389X105ORCLORACLE CORP$3.0M0.19%13,683CommonSOLE
252131107DXCMDEXCOM INC$2.7M0.17%31,169CommonSOLE
25862B109DDIDOUBLEDOWN INTERACTIVE CO LT$2.6M0.17%275,903CommonSOLE
679369108OLPXOLAPLEX HLDGS INC$2.2M0.14%1,562,741CommonSOLE
45170X205INVEIDENTIV INC$1.9M0.12%594,006CommonSOLE
147448104CWSTCASELLA WASTE SYS INC$1.8M0.11%15,303CommonSOLE
02079K107GOOGALPHABET INC$1.2M0.08%6,992CommonSOLE
746237106PRTCYPURETECH HEALTH PLC$479,4640.03%27,795CommonSOLE
68236X100TOITHE ONCOLOGY INSTITUTE INC$454,1000.03%221,512CommonSOLE
13462K109CWHCAMPING WORLD HLDGS INC$361,8500.02%21,050CommonSOLE
665531307NOGNORTHERN OIL & GAS INC$305,5280.02%10,777CommonSOLE

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.