Portolan Capital Management, LLC

Investment Portfolio & 13F Holdings Analysis

About

Portolan Capital Management, LLC is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 109 holdings worth $1.3 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.

AI_NATIVE detailed information: This accession holds the following tickers:[
  "GTES",
  "FLEX",
  "SMTC",
  "RDNT",
  "KTOS",
  "KRUS",
  "SMCI",
  "CLS",
  "BIDU",
  "HNST",
  "OPRA",
  "PRIM",
  "PSIX",
  "EBAY",
  "POWL",
  "QNST",
  "SRAD",
  null,
  "BV",
  "CLBT",
  "ESTA",
  "ZGN",
  "GENI",
  "ACI",
  "META",
  null,
  "LQDT",
  "HZO",
  "MAMA",
  "MYGN",
  null,
  "PAYO",
  "PBPB",
  "PRCH",
  "RMNI",
  "SMWB",
  "REAX",
  "TGLS",
  "STKL",
  "TPB",
  "NTGR",
  "MSFT",
  "ELF",
  "EVER",
  "HCAT",
  "ORCL",
  "GEHC",
  "RELY",
  "PRTC",
  "TMDX",
  "TPR",
  "UTHR",
  "LIND",
  "WEAV",
  "TREE",
  "TLN",
  "KOS",
  "FIVN",
  "OPRT",
  "MOD",
  "SKX",
  "GDOT",
  "VRT",
  "GES",
  "SLM",
  "NTRA",
  "FOUR",
  "ENVA",
  "CTOS",
  "ECPG",
  "GCO",
  "FORR",
  "GPOR",
  "INVE",
  "IIIV",
  "KMPR",
  "TTWO",
  "SG",
  "DKNG",
  "UPWK",
  "VKTX",
  "VIRT",
  "VPG",
  "WRBY",
  "ZETA",
  "DY",
  "KIDS",
  "PACK",
  "NOG",
  "GEN",
  "TTMI",
  "RPRX",
  "QTRX",
  "RDDT",
  "LNTH",
  "SPWH",
  "BELFB",
  "BIO",
  "BXC",
  "CWST",
  "CDNA",
  "CADL",
  "CSTL",
  "CELH",
  "SKY",
  "CROX",
  "DBRG",
  "DOMO",
  "GOOG"
]

Filing Details

13F-HR • 2025-03-31

SEC FilingSEC DataHachi Filing

Report Date: 2025-03-31
Filing Date: 2025-05-15
Total Holdings: 109
Total Value: 1315774017
Accession Number: 0001104659-25-049320
Form Type: 13F-HR
CIK: portolan-capital-management
Manager Name: Portolan-Capital-Management

Data Enrichment

97% identified

106 identified3 unidentified

Holdings

SEC FilingSEC DataHachi Filing

Manager:

109 positions • $1,315,774.017K total value

109 positions

Manager:

SEC FilingSEC DataHachi Filing

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Lantheus Holdings, Inc.

LNTH|516544103

Shares:867.3K

Value:$84.6M

SLM Corp

SLM|78442P106

Shares:1.5M

Value:$44.4M

KRATOS DEFENSE & SECURITY SOLUTIONS, INC.

KTOS|50077B207

Shares:1.5M

Value:$43.4M

Genius Sports Ltd

GENI|G3934V109

Shares:4.3M

Value:$42.9M

MODINE MANUFACTURING CO

MOD|607828100

Shares:493.6K

Value:$37.9M

Shift4 Payments, Inc.

FOUR|82452J109

Shares:406.5K

Value:$33.2M

EBAY INC

EBAY|278642103

Shares:474.7K

Value:$32.1M

Gates Industrial Corp plc

GTES|G39108108

Shares:1.7M

Value:$31.9M

CELESTICA INC

CLS|15101Q207

Shares:392.9K

Value:$31.0M

Honest Company, Inc.

HNST|438333106

Shares:5.5M

Value:$25.9M

CASTLE BIOSCIENCES INC

CSTL|14843C105

Shares:1.3M

Value:$25.3M

e.l.f. Beauty, Inc.

ELF|26856L103

Shares:395.3K

Value:$24.8M

Opera Ltd

OPRA|68373M107

Shares:1.5M

Value:$24.4M

Porch Group, Inc.

PRCH|733245104

Shares:3.3M

Value:$24.0M

RadNet, Inc.

RDNT|750491102

Shares:478.4K

Value:$23.8M

LendingTree, Inc.

TREE|52603B107

Shares:438.8K

Value:$22.1M

TTM TECHNOLOGIES INC

TTMI|87305R109

Shares:1.0M

Value:$20.9M

Crocs, Inc.

CROX|227046109

Shares:194.2K

Value:$20.6M

DigitalBridge Group, Inc.

DBRG|25401T603

Shares:2.3M

Value:$20.0M

55406W103

Shares:2.6M

Value:$19.9M

Instrument	Shares		Other Manager	Value
Lantheus Holdings, Inc.(LNTHcusip516544103)	867.3K	QoQ +6.72% (+54.7K) YoY +64.96% (+341.6K)	All Managers (Combined)	$84.6M	QoQ +16.43% (+$12.0M) YoY +158.69% (+$51.9M)
SLM Corp(SLMcusip78442P106)	1.5M	QoQ +67.93% (+611.8K) YoY +3641.49% (+1.5M)	All Managers (Combined)	$44.4M	QoQ +78.83% (+$19.6M) YoY +4943.03% (+$43.5M)
KRATOS DEFENSE & SECURITY SOLUTIONS, INC.(KTOScusip50077B207)	1.5M	QoQ +8.35% (+112.7K) YoY -7.82% (-124.0K)	All Managers (Combined)	$43.4M	QoQ +21.95% (+$7.8M) YoY +48.89% (-$14.2M)
Genius Sports Ltd(GENIcusipG3934V109)	4.3M	QoQ +39.47% (+1.2M) YoY +94.24% (+2.1M)	All Managers (Combined)	$42.9M	QoQ +61.40% (+$16.3M) YoY +240.52% (+$30.3M)
MODINE MANUFACTURING CO(MODcusip607828100)	493.6K	QoQ +50.06% (-164.7K) YoY +83.55% (+224.7K)	All Managers (Combined)	$37.9M	QoQ -0.64% (-$247.4K) YoY +47.99% (+$12.3M)
Shift4 Payments, Inc.(FOURcusip82452J109)	406.5K	QoQ +188.35% (+265.5K) YoY +69.86% (+167.2K)	All Managers (Combined)	$33.2M	QoQ +127.03% (+$18.6M) YoY +110.07% (+$17.4M)
EBAY INC(EBAYcusip278642103)	474.7K	QoQ +99.32% (+236.5K) YoY NEW(+474.7K)	All Managers (Combined)	$32.1M	QoQ +117.92% (+$17.4M) YoY NEW(+$32.1M)
Gates Industrial Corp plc(GTEScusipG39108108)	1.7M	QoQ +54.97% (+614.2K) YoY +697.76% (+1.5M)	All Managers (Combined)	$31.9M	QoQ +38.69% (+$8.9M) YoY +729.29% (+$28.0M)
CELESTICA INC(CLScusip15101Q207)	392.9K	QoQ -37.32% (-234.0K) YoY NEW(+392.9K)	All Managers (Combined)	$31.0M	QoQ -46.48% (-$26.9M) YoY NEW(+$31.0M)
Honest Company, Inc.(HNSTcusip438333106)	5.5M	QoQ +2.98% (-160.2K) YoY -26.29% (-2.0M)	All Managers (Combined)	$25.9M	QoQ -30.15% (-$11.2M) YoY -14.47% (-$4.4M)
CASTLE BIOSCIENCES INC(CSTLcusip14843C105)	1.3M	QoQ +62.92% (+488.6K) YoY +21.25% (+221.8K)	All Managers (Combined)	$25.3M	QoQ +22.39% (+$4.6M) YoY +9.59% (+$2.2M)
e.l.f. Beauty, Inc.(ELFcusip26856L103)	395.3K	QoQ +71.85% (-165.3K) YoY +137.09% (-228.5K)	All Managers (Combined)	$24.8M	QoQ -14.05% (-$4.1M) YoY -24.05% (-$7.9M)
Opera Ltd(OPRAcusip68373M107)	1.5M	QoQ +104.40% (+781.3K) YoY NEW(+1.5M)	All Managers (Combined)	$24.4M	QoQ +72.03% (+$10.2M) YoY NEW(+$24.4M)
Porch Group, Inc.(PRCHcusip733245104)	3.3M	QoQ +43.16% (+992.6K) YoY +421.37% (+2.7M)	All Managers (Combined)	$24.0M	QoQ +112.12% (+$12.7M) YoY +781.86% (+$21.3M)
RadNet, Inc.(RDNTcusip750491102)	478.4K	QoQ +12.74% (-54.1K) YoY +409.04% (+384.4K)	All Managers (Combined)	$23.8M	QoQ -19.73% (-$5.8M) YoY +420.13% (+$19.2M)
LendingTree, Inc.(TREEcusip52603B107)	438.8K	QoQ NEW(+438.8K) YoY NEW(+438.8K)	All Managers (Combined)	$22.1M	QoQ NEW(+$22.1M) YoY NEW(+$22.1M)
TTM TECHNOLOGIES INC(TTMIcusip87305R109)	1.0M	QoQ -21.51% (-280.0K) YoY +97.18% (+503.4K)	All Managers (Combined)	$20.9M	QoQ -34.96% (-$11.3M) YoY +158.41% (+$12.8M)
Crocs, Inc.(CROXcusip227046109)	194.2K	QoQ +138.49% (+112.8K) YoY +45.80% (+61.0K)	All Managers (Combined)	$20.6M	QoQ +131.24% (+$11.7M) YoY +7.68% (+$1.5M)
DigitalBridge Group, Inc.(DBRGcusip25401T603)	2.3M	QoQ +186.21% (+1.5M) YoY NEW(+2.3M)	All Managers (Combined)	$20.0M	QoQ +123.79% (+$11.1M) YoY NEW(+$20.0M)
(cusip55406W103)✕	2.6M	QoQ +38.11% (+725.4K) YoY +269.20% (+1.9M)	All Managers (Combined)	$19.9M	QoQ +47.06% (+$6.4M) YoY +777.73% (+$17.6M)