Free Trial

Portolan Capital Management, LLC Top Holdings and 13F Report (2025)

About Portolan Capital Management, LLC

Investment Activity

  • Portolan Capital Management, LLC has $1.49 billion in total holdings as of December 31, 2024.
  • Portolan Capital Management, LLC owns shares of 131 different stocks, but just 63 companies or ETFs make up 80% of its holdings.
  • Approximately 36.99% of the portfolio was purchased this quarter.
  • About 37.03% of the portfolio was sold this quarter.
  • This quarter, Portolan Capital Management, LLC has purchased 129 new stocks and bought additional shares in 47 stocks.
  • Portolan Capital Management, LLC sold shares of 46 stocks and completely divested from 36 stocks this quarter.

Largest Holdings

Lantheus
$72,697,880
CELESTICA INC
$57,866,654
Semtech
$41,267,000
Honest
$37,137,877

Largest New Holdings this Quarter

Snap
$25,447,184 Holding
Gates Industrial
$22,981,586 Holding
Genesco
$19,847,329 Holding
Tapestry
$12,928,807 Holding
Vishay Precision Group
$11,551,957 Holding

Largest Purchases this Quarter

Semtech
573,175 shares (about $35.45M)
Snap
2,362,784 shares (about $25.45M)
Gates Industrial
1,117,238 shares (about $22.98M)
Genesco
464,265 shares (about $19.85M)
REDDIT INC
87,080 shares (about $14.23M)

Largest Sales this Quarter

Avid Bioservices
1,638,953 shares (about $20.24M)
Extreme Networks
1,027,911 shares (about $17.21M)
Honest
2,309,349 shares (about $16.00M)
Tecnoglass
176,847 shares (about $14.03M)
TALEN ENERGY CORP
66,764 shares (about $13.45M)

Sector Allocation Over Time

Map of 500 Largest Holdings ofPortolan Capital Management, LLC

 
 
Selling
 
 
Neutral
 
 
Buying
Issuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSector
Lantheus Holdings, Inc. stock logo
LNTH
Lantheus
$72,697,880$12,680,866 21.1%812,6304.9%Medical
CELESTICA INC
$57,866,654$9,599,661 -14.2%626,9413.9%COM
Semtech Co. stock logo
SMTC
Semtech
$41,267,000$35,450,873 609.5%667,2112.8%Computer and Technology
Modine Manufacturing stock logo
MOD
Modine Manufacturing
$38,129,261$13,927,019 57.5%328,8992.6%Auto/Tires/Trucks
The Honest Company, Inc. stock logo
HNST
Honest
$37,137,877$16,003,789 -30.1%5,359,0012.5%Consumer Discretionary
Kratos Defense & Security Solutions, Inc. stock logo
KTOS
Kratos Defense & Security Solutions
$35,562,271$11,308,130 -24.1%1,348,0772.4%Aerospace
Kura Sushi USA, Inc. stock logo
KRUS
Kura Sushi USA
$33,809,257$14,195,969 72.4%373,2532.3%Retail/Wholesale
TTM Technologies, Inc. stock logo
TTMI
TTM Technologies
$32,208,215$5,939,307 22.6%1,301,3422.2%Computer and Technology
TALEN ENERGY CORP
$31,103,140$13,450,943 -30.2%154,3812.1%COM
RadNet, Inc. stock logo
RDNT
RadNet
$29,635,906$4,680,537 -13.6%424,3402.0%Medical
e.l.f. Beauty, Inc. stock logo
ELF
e.l.f. Beauty
$28,876,249$13,899,515 92.8%229,9981.9%Consumer Staples
Quanterix Co. stock logo
QTRX
Quanterix
$27,508,569$713,677 2.7%2,587,8241.9%Medical
Genius Sports Limited stock logo
GENI
Genius Sports
$26,551,677$876,530 -3.2%3,069,5581.8%Computer and Technology
Snap Inc. stock logo
SNAP
Snap
$25,447,184$25,447,184 New Holding2,362,7841.7%Computer and Technology
SLM Co. stock logo
SLM
SLM
$24,836,314$13,957,742 128.3%900,5191.7%Finance
Gates Industrial Corp PLC stock logo
GTES
Gates Industrial
$22,981,586$22,981,586 New Holding1,117,2381.5%Industrial Products
Payoneer Global Inc. stock logo
PAYO
Payoneer Global
$21,822,532$11,107,684 103.7%2,173,5591.5%Business Services
REDDIT INC
$21,512,300$14,232,355 195.5%131,6221.4%CL A
QuinStreet, Inc. stock logo
QNST
QuinStreet
$21,160,150$2,665,093 14.4%917,2151.4%Computer and Technology
Castle Biosciences, Inc. stock logo
CSTL
Castle Biosciences
$20,695,830$12,766,656 -38.2%776,5791.4%Medical
Cellebrite DI Ltd. stock logo
CLBT
Cellebrite DI
$20,154,278$6,810,883 -25.3%914,8561.4%Business Services
Enova International, Inc. stock logo
ENVA
Enova International
$19,976,694$8,657,485 76.5%208,3511.3%Finance
Genesco Inc. stock logo
GCO
Genesco
$19,847,329$19,847,329 New Holding464,2651.3%Retail/Wholesale
Virtu Financial, Inc. stock logo
VIRT
Virtu Financial
$18,860,698$4,900,113 35.1%528,6071.3%Finance
Bel Fuse Inc. stock logo
BELFB
Bel Fuse
$17,192,521$7,225,362 72.5%208,4701.2%Computer and Technology
Flex Ltd. stock logo
FLEX
Flex
$16,711,244$213,218 -1.3%435,3021.1%Computer and Technology
REMITLY GLOBAL INC
$15,669,042$7,700,613 96.6%694,2421.1%COM
i3 Verticals, Inc. stock logo
IIIV
i3 Verticals
$15,578,150$531,372 3.5%676,1351.0%Computer and Technology
Kemper Co. stock logo
KMPR
Kemper
$15,294,289$5,521,363 -26.5%230,1971.0%Finance
eBay Inc. stock logo
EBAY
eBay
$14,752,277$9,996,995 210.2%238,1321.0%Retail/Wholesale
Shift4 Payments, Inc. stock logo
FOUR
Shift4 Payments
$14,629,970$659,937 4.7%140,9711.0%Business Services
CORE SCIENTIFIC INC NEW
$14,408,387$6,653,110 85.8%1,025,5081.0%COM
Bowlero Corp. stock logo
BOWL
Bowlero
$14,306,863$7,246,239 102.6%1,429,2571.0%Consumer Discretionary
Opera Limited stock logo
OPRA
Opera
$14,173,730$691,859 5.1%748,3491.0%Computer and Technology
MYT Netherlands Parent B.V. stock logo
MYTE
MYT Netherlands Parent B.V.
$13,513,324$692,442 5.4%1,903,2850.9%Retail/Wholesale
Skechers U.S.A., Inc. stock logo
SKX
Skechers U.S.A.
$13,369,127$3,010,200 29.1%198,8270.9%Consumer Discretionary
Tapestry, Inc. stock logo
TPR
Tapestry
$12,928,807$12,928,807 New Holding197,9000.9%Retail/Wholesale
Oracle Co. stock logo
ORCL
Oracle
$12,867,108$6,364,482 97.9%77,2150.9%Computer and Technology
SunOpta Inc. stock logo
STKL
SunOpta
$12,839,735$3,169,066 32.8%1,667,4980.9%Consumer Staples
Applied Optoelectronics, Inc. stock logo
AAOI
Applied Optoelectronics
$12,418,392$11,857,309 -48.8%336,9070.8%Computer and Technology
Sportradar Group AG stock logo
SRAD
Sportradar Group
$12,405,452$4,864,373 -28.2%715,4240.8%Consumer Discretionary
ZETA GLOBAL HOLDINGS CORP
$11,951,890$13,326,434 -52.7%664,3630.8%CL A
DraftKings Inc. stock logo
DKNG
DraftKings
$11,925,688$8,898,947 294.0%320,5830.8%Consumer Discretionary
Vishay Precision Group, Inc. stock logo
VPG
Vishay Precision Group
$11,551,957$11,551,957 New Holding492,2010.8%Computer and Technology
Porch Group, Inc. stock logo
PRCH
Porch Group
$11,314,204$9,350,047 476.0%2,299,6350.8%Computer and Technology
Generac Holdings Inc. stock logo
GNRC
Generac
$11,061,577$4,204,491 61.3%71,3420.7%Industrial Products
Warby Parker Inc. stock logo
WRBY
Warby Parker
$10,695,591$5,044,953 89.3%441,7840.7%Consumer Staples
Encore Capital Group, Inc. stock logo
ECPG
Encore Capital Group
$10,290,757$10,290,757 New Holding215,4230.7%Finance
Power Solutions International, Inc. stock logo
PSIX
Power Solutions International
$10,153,288$10,153,288 New Holding341,2870.7%Auto/Tires/Trucks
Dell Technologies Inc. stock logo
DELL
Dell Technologies
$10,120,607$7,952,366 366.8%87,8220.7%Computer and Technology
Bio-Rad Laboratories, Inc. stock logo
BIO
Bio-Rad Laboratories
$10,047,807$2,853,438 39.7%30,5860.7%Medical
Sweetgreen, Inc. stock logo
SG
Sweetgreen
$9,842,452$7,969,090 -44.7%307,0010.7%Retail/Wholesale
UBS Group AG stock logo
UBS
UBS Group
$9,749,881$9,749,881 New Holding321,5660.7%Finance
Albertsons Companies, Inc. stock logo
ACI
Albertsons Companies
$9,623,207$9,623,207 New Holding489,9800.6%Consumer Staples
Miller Industries, Inc. stock logo
MLR
Miller Industries
$9,366,349$9,366,349 New Holding143,3040.6%Auto/Tires/Trucks
Potbelly Co. stock logo
PBPB
Potbelly
$9,290,729$788,906 9.3%986,2770.6%Retail/Wholesale
Vertiv Holdings Co stock logo
VRT
Vertiv
$9,160,488$6,617,328 -41.9%80,6310.6%Computer and Technology
Tecnoglass Inc. stock logo
TGLS
Tecnoglass
$9,045,098$14,027,505 -60.8%114,0330.6%Retail/Wholesale
Establishment Labs Holdings Inc. stock logo
ESTA
Establishment Labs
$8,937,165$6,332,690 243.1%193,9910.6%Medical
DigitalBridge Group, Inc. stock logo
DBRG
DigitalBridge Group
$8,932,993$6,290,788 238.1%791,9320.6%Finance
Crocs, Inc. stock logo
CROX
Crocs
$8,919,028$1,133,197 -11.3%81,4300.6%Consumer Discretionary
Royalty Pharma plc stock logo
RPRX
Royalty Pharma
$8,780,159$4,431,623 101.9%344,1850.6%Finance
Meta Platforms, Inc. stock logo
META
Meta Platforms
$8,611,096$745,354 -8.0%14,7070.6%Computer and Technology
BILL Holdings, Inc. stock logo
BILL
BILL
$8,358,844$8,358,844 New Holding98,6760.6%Computer and Technology
Primoris Services Co. stock logo
PRIM
Primoris Services
$8,193,289$4,266,787 -34.2%107,2420.6%Construction
Take-Two Interactive Software, Inc. stock logo
TTWO
Take-Two Interactive Software
$7,822,664$12,517 -0.2%42,4960.5%Consumer Discretionary
Western Digital Co. stock logo
WDC
Western Digital
$7,706,879$356,707 -4.4%129,2450.5%Computer and Technology
Ambac Financial Group, Inc. stock logo
AMBC
Ambac Financial Group
$7,456,378$7,456,378 New Holding589,4370.5%Finance
Northern Oil and Gas, Inc. stock logo
NOG
Northern Oil and Gas
$7,321,783$4,095,255 -35.9%197,0340.5%Oils/Energy
Ulta Beauty, Inc. stock logo
ULTA
Ulta Beauty
$7,266,810$7,266,810 New Holding16,7080.5%Retail/Wholesale
Custom Truck One Source, Inc. stock logo
CTOS
Custom Truck One Source
$6,982,066$4,219,683 152.8%1,451,5730.5%Auto/Tires/Trucks
MAREX GROUP PLC
$6,970,048$6,970,048 New Holding223,6140.5%ORD
Weave Communications, Inc. stock logo
WEAV
Weave Communications
$6,901,240$6,901,240 New Holding433,4950.5%Computer and Technology
Candel Therapeutics, Inc. stock logo
CADL
Candel Therapeutics
$6,542,507$6,542,507 New Holding753,7450.4%Medical
Mama's Creations, Inc. stock logo
MAMA
Mama's Creations
$6,515,292$1,075,595 -14.2%818,5040.4%Consumer Staples
Lindblad Expeditions Holdings, Inc. stock logo
LIND
Lindblad Expeditions
$6,455,078$3,379,270 109.9%544,2730.4%Consumer Discretionary
Sportsman's Warehouse Holdings, Inc. stock logo
SPWH
Sportsman's Warehouse
$6,232,442$3,705,786 146.7%2,334,2480.4%Retail/Wholesale
MarineMax, Inc. stock logo
HZO
MarineMax
$6,136,242$3,115,483 -33.7%211,9600.4%Retail/Wholesale
Natera, Inc. stock logo
NTRA
Natera
$6,109,430$7,137,114 -53.9%38,5940.4%Medical
Scorpio Tankers Inc. stock logo
STNG
Scorpio Tankers
$5,891,097$5,891,097 New Holding118,5570.4%Transportation
MYR Group Inc. stock logo
MYRG
MYR Group
$5,703,991$5,703,991 New Holding38,3410.4%Utilities
Avid Bioservices, Inc. stock logo
CDMO
Avid Bioservices
$5,619,719$20,241,068 -78.3%455,0380.4%Medical
Alta Equipment Group Inc. stock logo
ALTG
Alta Equipment Group
$5,561,021$5,561,021 New Holding850,3090.4%Industrial Products
Kosmos Energy Ltd. stock logo
KOS
Kosmos Energy
$5,531,871$5,531,871 New Holding1,617,5060.4%Oils/Energy
NETGEAR, Inc. stock logo
NTGR
NETGEAR
$5,357,004$5,357,004 New Holding192,2140.4%Computer and Technology
Health Catalyst, Inc. stock logo
HCAT
Health Catalyst
$5,295,635$603,969 12.9%749,0290.4%Medical
Oatly Group AB stock logo
OTLY
Oatly Group
$5,246,537$2,100,947 66.8%7,915,7160.4%Consumer Staples
BrightView Holdings, Inc. stock logo
BV
BrightView
$5,223,517$4,698,517 -47.4%326,6740.4%Business Services
Couchbase, Inc. stock logo
BASE
Couchbase
$5,169,036$8,469,018 -62.1%331,5610.3%Computer and Technology
Viking Therapeutics, Inc. stock logo
VKTX
Viking Therapeutics
$5,167,621$106,958 2.1%128,4200.3%Medical
United Therapeutics Co. stock logo
UTHR
United Therapeutics
$5,027,617$5,736,120 -53.3%14,2490.3%Medical
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
$4,868,597$7,301,280 -60.0%131,1230.3%Medical
OrthoPediatrics Corp. stock logo
KIDS
OrthoPediatrics
$4,760,361$2,381,374 -33.3%205,3650.3%Medical
MaxCyte, Inc. stock logo
MXCT
MaxCyte
$4,724,150$698,152 -12.9%1,135,6130.3%Medical
Navigator Holdings Ltd. stock logo
NVGS
Navigator
$4,708,904$97,641 2.1%306,7690.3%Transportation
Canada Goose Holdings Inc. stock logo
GOOS
Canada Goose
$4,403,240$4,403,240 New Holding439,0070.3%Retail/Wholesale
CACI International Inc stock logo
CACI
CACI International
$4,323,846$899,033 26.3%10,7010.3%Computer and Technology
Dycom Industries, Inc. stock logo
DY
Dycom Industries
$4,046,547$4,046,547 New Holding23,2480.3%Construction
Similarweb Ltd. stock logo
SMWB
Similarweb
$4,008,736$4,008,736 New Holding282,9030.3%Computer and Technology
Forrester Research, Inc. stock logo
FORR
Forrester Research
$3,940,582$703,176 21.7%251,4730.3%Computer and Technology

Showing largest 100 holdings. View all holdings.
SEC Filings and Trading Data