Portolan Capital Management, LLC
Institutional InvestorSimilar funds →SEC EDGAR: CIK 1350290
Institutional-grade research for retail investors
Sector Allocation
- Technology44.4%$1.2B
- Industrials17.5%$467.9M
- Healthcare10.9%$290.8M
- Financials9.9%$263.3M
- Consumer Discretionary8.1%$216.9M
- Materials2.7%$71.8M
- Communication Services2.1%$57.2M
- Utilities1.4%$36.1M
- Consumer Staples1.1%$28.9M
- Energy1.1%$28.0M
AUM History
13fpro.ai/research/fund/portolan-capital-management-llc-1350290
Conviction and streaks
Stable · top 10 = 29.0%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
VPG
$151.1MVIRT
$127.6MTTMI
$95.0MMOD
$83.8MQLYS
$72.8MFOUR
$54.2MMEC
$48.7MENVA
$47.9MSMTC
$47.7MCLS
$46.3MUTHR
$44.2MGENI
$42.6MPOWL
$41.7MPENG
$41.5MDAVE
$39.2MFLEX
$37.1MALNT
$37.0MPRCH
$36.9MAKAM
$36.7MCADL
$36.0M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/portolan-capital-management-llc-1350290
Portolan Capital Management, LLC 13F holdings — Q2 2026
$2.7B portfolio (+42.1% QoQ) · 148 holdings · Q2 2026 13F · top 10 are 29% of the stock portfolio
$151.1M
5.7% of stocks
-1%This quarter—Since Q-end—HeldAIQuality30.5#2,464Est. buy—$127.6M
4.8% of stocks
+77%This quarter—Since Q-end—HeldAIQuality73.8#121Est. buy—$95.0M
3.6% of stocks
-30%This quarter—Since Q-end—HeldAIQuality62.5#694Est. buy—$83.8M
3.1% of stocks
-24%This quarter—Since Q-end—HeldAIQuality56.5#1,145Est. buy—$72.8M
2.7% of stocks
+122%This quarter—Since Q-end—HeldAIQuality67.7#351Est. buy—$54.2M
2.0% of stocks
+420%This quarter—Since Q-end—Held$48.7M
1.8% of stocks
+58%This quarter—Since Q-end—Held$47.9M
1.8% of stocks
+146%This quarter—Since Q-end—Held$47.7M
1.8% of stocks
-11%This quarter—Since Q-end—Held$46.3M
1.7% of stocks
-36%This quarter—Since Q-end—Held
| # | Company | Value | Weight | This quarter | Since Q-end | Held | AI quality | Est. buy | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | $151.1M | 5.7% | -1% | — | — | 30.5#2,464 | — | ||
| 2 | $127.6M | 4.8% | +77% | — | — | 73.8#121 | — | ||
| 3 | $95.0M | 3.6% | -30% | — | — | 62.5#694 | — | ||
| 4 | $83.8M | 3.1% | -24% | — | — | 56.5#1,145 | — | ||
| 5 | $72.8M | 2.7% | +122% | — | — | 67.7#351 | — | ||
| 6 | $54.2M | 2.0% | +420% | — | — | AI quality score is Pro: unlock with a free trial | — | ||
| 7 | $48.7M | 1.8% | +58% | — | — | AI quality score is Pro: unlock with a free trial | — | ||
| 8 | $47.9M | 1.8% | +146% | — | — | AI quality score is Pro: unlock with a free trial | — | ||
| 9 | $47.7M | 1.8% | -11% | — | — | AI quality score is Pro: unlock with a free trial | — | ||
| 10 | $46.3M | 1.7% | -36% | — | — | AI quality score is Pro: unlock with a free trial | — |
All holdings — Portolan Capital Management, LLC (Q2 2026)
148 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | UNITED THERAPEUTICS Corp | Healthcare | $44.2M | 1.6% | 82K | +29% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | Genius Sports Ltd | Communication Services | $42.6M | 1.6% | 7.03M | +152% | — | — | 13F | |
| 13 | POWELL INDUSTRIES INC | Technology | $41.7M | 1.6% | 146K | +92% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | Penguin Solutions, Inc. | Technology | $41.5M | 1.6% | 546K | New | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | Dave Inc./DE | Financials | $39.2M | 1.5% | 105K | -0.1% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | FLEX LTD. | Technology | $37.1M | 1.4% | 229K | -48% | — | — | 13F | |
| 17 | ALLIENT INC | Technology | $37.0M | 1.4% | 360K | +11% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | Porch Group, Inc. | Technology | $36.9M | 1.4% | 2.46M | +15% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | AKAMAI TECHNOLOGIES INC | Industrials | $36.7M | 1.4% | 310K | -27% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | Candel Therapeutics, Inc. | Healthcare | $36.0M | 1.4% | 3.49M | +21% | — | — | 13F | |
| 21 | Talen Energy Corp | Utilities | $34.7M | 1.3% | 90K | +11% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | REGAL REXNORD CORP | Industrials | $32.8M | 1.2% | 137K | +155% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | Lantheus Holdings, Inc. | Healthcare | $32.0M | 1.2% | 289K | -31% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | BIOGEN INC. | Healthcare | $30.9M | 1.2% | 143K | +21% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | VEECO INSTRUMENTS INC | Technology | $30.4M | 1.1% | 402K | +59% | — | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $LUXE | LuxExperience B.V. | Consumer Discretionary | $30.1M | 1.1% | 4.05M | +9% | |||
| 27 | $ZETA | Zeta Global Holdings Corp. | Technology | $29.6M | 1.1% | 1.50M | +209% | |||
| 28 | $CLBT | Cellebrite DI Ltd. | Technology | $28.2M | 1.1% | 1.93M | -11% | |||
| 29 | $SRAD | Sportradar Group AG | Technology | $27.2M | 1.0% | 1.82M | New | |||
| 30 | $GOOS | Canada Goose Holdings Inc. | Consumer Discretionary | $26.2M | 1.0% | 2.75M | -15% | |||
| 31 | $BAND | Bandwidth Inc. | Technology | $26.1M | 1.0% | 413K | New | |||
| 32 | $WRBY | Warby Parker Inc. | Healthcare | $25.6M | 1.0% | 844K | +69% | |||
| 33 | $KTB | Kontoor Brands, Inc. | Consumer Discretionary | $24.3M | 0.9% | 292K | New | |||
| 34 | $OSK | OSHKOSH CORP | Industrials | $24.2M | 0.9% | 158K | +767% | |||
| 35 | $ECPG | ENCORE CAPITAL GROUP INC | Financials | $23.9M | 0.9% | 256K | New | |||
| 36 | $TWLO | TWILIO INC | Technology | $23.8M | 0.9% | 115K | +54% | |||
| 37 | $SEZL | Sezzle Inc. | Financials | $23.3M | 0.9% | 136K | +94% | |||
| 38 | $RELY | Remitly Global, Inc. | Industrials | $22.8M | 0.8% | 1.02M | +46% | |||
| 39 | $ACMR | ACM Research, Inc. | Technology | $22.5M | 0.8% | 177K | +113% | |||
| 40 | $ESI | Element Solutions Inc | Materials | $22.4M | 0.8% | 469K | +112% | |||
| 41 | $NOK | NOKIA CORP | Technology | $21.9M | 0.8% | 1.65M | -31% | |||
| 42 | $BB | BLACKBERRY Ltd | Technology | $21.7M | 0.8% | 1.71M | New | |||
| 43 | $IFF | INTERNATIONAL FLAVORS & FRAGRANCES INC | Materials | $21.3M | 0.8% | 269K | New | |||
| 44 | $PLSE | PULSE BIOSCIENCES, INC. | Healthcare | $20.9M | 0.8% | 753K | +3% | |||
| 45 | $MOG-A | MOOG INC. | Industrials | $20.9M | 0.8% | 49K | +67% | |||
| 46 | $REAX.R1862461 | Real Brokerage Inc | Real Estate | $20.1M | 0.8% | 11.04M | -24% | |||
| 47 | $CDNA | CareDx, Inc. | Healthcare | $19.5M | 0.7% | 685K | +101% | |||
| 48 | $PARR | PAR PACIFIC HOLDINGS, INC. | Energy | $19.2M | 0.7% | 342K | -51% | |||
| 49 | $VSH | VISHAY INTERTECHNOLOGY INC | Technology | $18.9M | 0.7% | 352K | New | |||
| 50 | $TTWO | TAKE TWO INTERACTIVE SOFTWARE INC | Technology | $18.1M | 0.7% | 72K | +125% | |||
| 51 | $GTES | Gates Industrial Corp Ltd. | Industrials | $17.9M | 0.7% | 642K | New | |||
| 52 | $MAMA | Mama's Creations, Inc. | Consumer Staples | $17.6M | 0.7% | 985K | -16% | |||
| 53 | $KRUS | KURA SUSHI USA, INC. | Consumer Discretionary | $17.4M | 0.7% | 302K | +0.3% | |||
| 54 | $SANM | SANMINA CORP | Technology | $17.3M | 0.7% | 68K | +150% | |||
| 55 | $PKE | PARK AEROSPACE CORP | Industrials | $17.1M | 0.6% | 447K | +9% | |||
| 56 | $GHM | GRAHAM CORP | Industrials | $16.9M | 0.6% | 137K | +32% | |||
| 57 | $BELFA | BEL FUSE INC /NJ | Technology | $15.9M | 0.6% | 48K | -10% | |||
| 58 | $ONON | On Holding AG | Consumer Discretionary | $15.6M | 0.6% | 441K | +118% | |||
| 59 | $AS | Amer Sports, Inc. | Consumer Discretionary | $15.3M | 0.6% | 453K | +27% | |||
| 60 | $COHU | COHU INC | Technology | $15.2M | 0.6% | 206K | New | |||
| 61 | $JBL | JABIL INC | Technology | $15.0M | 0.6% | 39K | -50% | |||
| 62 | $ADEA | Adeia Inc. | Communication Services | $14.6M | 0.6% | 443K | -39% | |||
| 63 | $VICR | VICOR CORP | Technology | $14.5M | 0.5% | 38K | +43% | |||
| 64 | $TENB | Tenable Holdings, Inc. | Technology | $14.3M | 0.5% | 388K | New | |||
| 65 | $GEHC | GE HealthCare Technologies Inc. | Healthcare | $14.2M | 0.5% | 222K | New | |||
| 66 | $CXT | Crane NXT, Co. | Industrials | $13.9M | 0.5% | 272K | New | |||
| 67 | $PACK | Ranpak Holdings Corp. | Materials | $13.9M | 0.5% | 1.89M | -3% | |||
| 68 | $ONTO | ONTO INNOVATION INC. | Technology | $13.8M | 0.5% | 37K | +64% | |||
| 69 | $WGS | GeneDx Holdings Corp. | Healthcare | $13.8M | 0.5% | 200K | +95% | |||
| 70 | $FORR | FORRESTER RESEARCH, INC. | Technology | $13.7M | 0.5% | 1.62M | +5% | |||
| 71 | $HZO | MARINEMAX INC | Consumer Discretionary | $12.6M | 0.5% | 344K | New | |||
| 72 | $BIO | BIO-RAD LABORATORIES, INC. | Healthcare | $12.5M | 0.5% | 43K | +201% | |||
| 73 | $QMCO | QUANTUM CORP /DE/ | Technology | $11.2M | 0.4% | 1.02M | New | |||
| 74 | $BIDU | Baidu, Inc. | Technology | $11.0M | 0.4% | 96K | -74% | |||
| 75 | $RACE | Ferrari N.V. | Consumer Discretionary | $10.8M | 0.4% | 29K | New | |||
| 76 | $DGII | DIGI INTERNATIONAL INC | Technology | $10.6M | 0.4% | 141K | -17% | |||
| 77 | $LASR | NLIGHT, INC. | Technology | $10.6M | 0.4% | 152K | -33% | |||
| 78 | $VIAV | VIAVI SOLUTIONS INC. | Technology | $10.5M | 0.4% | 220K | +51% | |||
| 79 | $BOOT | Boot Barn Holdings, Inc. | Consumer Discretionary | $10.5M | 0.4% | 64K | New | |||
| 80 | $LPTH | LIGHTPATH TECHNOLOGIES INC | Technology | $10.3M | 0.4% | 629K | -40% | |||
| 81 | $FEIM | FREQUENCY ELECTRONICS INC | Technology | $10.1M | 0.4% | 153K | +2% | |||
| 82 | $HALO | HALOZYME THERAPEUTICS, INC. | Healthcare | $10.0M | 0.4% | 127K | New | |||
| 83 | $ECO | Okeanis Eco Tankers Corp. | Industrials | $9.8M | 0.4% | 196K | -64% | |||
| 84 | $ZGN | Ermenegildo Zegna N.V. | Consumer Discretionary | $9.8M | 0.4% | 754K | +6% | |||
| 85 | $SG | Sweetgreen, Inc. | Consumer Discretionary | $9.1M | 0.3% | 1.03M | New | |||
| 86 | $TPR | TAPESTRY, INC. | Consumer Discretionary | $9.0M | 0.3% | 62K | +262% | |||
| 87 | $SEI | Solaris Energy Infrastructure, Inc. | Energy | $8.6M | 0.3% | 107K | +285% | |||
| 88 | $ATEN | A10 Networks, Inc. | Technology | $8.5M | 0.3% | 227K | New | |||
| 89 | $AMBA | AMBARELLA INC | Technology | $8.3M | 0.3% | 97K | -11% | |||
| 90 | $TGLS | Tecnoglass Holdings Inc. | Materials | $8.3M | 0.3% | 176K | New | |||
| 91 | $QTRX | Quanterix Corp | Healthcare | $8.2M | 0.3% | 1.90M | -36% | |||
| 92 | $TGEN | TECOGEN INC. | Industrials | $8.1M | 0.3% | 1.55M | +250% | |||
| 93 | $HQY | HEALTHEQUITY, INC. | Industrials | $8.1M | 0.3% | 89K | -12% | |||
| 94 | $TSEM | TOWER SEMICONDUCTOR LTD | Technology | $8.0M | 0.3% | 31K | -5% | |||
| 95 | $CSTL | CASTLE BIOSCIENCES INC | Healthcare | $7.8M | 0.3% | 329K | -76% | |||
| 96 | $SILC | SILICOM LTD. | Technology | $7.8M | 0.3% | 162K | New | |||
| 97 | $CIEN | CIENA CORP | Technology | $7.5M | 0.3% | 15K | -17% | |||
| 98 | $EBAY | EBAY INC | Consumer Discretionary | $7.3M | 0.3% | 66K | -48% | |||
| 99 | $RBA | RB GLOBAL INC. | Industrials | $7.3M | 0.3% | 63K | New | |||
| 100 | $XMTR | Xometry, Inc. | Industrials | $7.1M | 0.3% | 73K | New | |||
| 101 | $MBLY | Mobileye Global Inc. | Technology | $7.0M | 0.3% | 721K | +6% | |||
| 102 | $WLDN | Willdan Group, Inc. | Technology | $6.7M | 0.3% | 84K | -10% | |||
| 103 | $HNST | Honest Company, Inc. | Consumer Discretionary | $6.4M | 0.2% | 1.74M | -43% | |||
| 104 | $MTRN | MATERION Corp | Industrials | $6.2M | 0.2% | 21K | New | |||
| 105 | $TTAM | Titan America SA | Materials | $6.0M | 0.2% | 321K | New | |||
| 106 | $GLBE | Global-E Online Ltd. | Technology | $6.0M | 0.2% | 172K | New | |||
| 107 | $META | Meta Platforms, Inc. | Technology | $5.7M | 0.2% | 10K | -1% | |||
| 108 | $CELH | Celsius Holdings, Inc. | Consumer Staples | $5.7M | 0.2% | 195K | +18% | |||
| 109 | $REAL | TheRealReal, Inc. | Consumer Discretionary | $5.6M | 0.2% | 478K | New | |||
| 110 | $ELF | e.l.f. Beauty, Inc. | Consumer Staples | $5.6M | 0.2% | 76K | -44% | |||
| 111 | $TMDX | TransMedics Group, Inc. | Healthcare | $5.5M | 0.2% | 82K | +671% | |||
| 112 | $RDVT | Red Violet, Inc. | Technology | $5.4M | 0.2% | 84K | New | |||
| 113 | $DHT | DHT Holdings, Inc. | Industrials | $5.2M | 0.2% | 315K | -71% | |||
| 114 | $EVLV | Evolv Technologies Holdings, Inc. | Technology | $5.2M | 0.2% | 894K | -50% | |||
| 115 | $PRCT | PROCEPT BioRobotics Corp | Healthcare | $5.1M | 0.2% | 227K | -10% | |||
| 116 | $TKR | TIMKEN CO | Industrials | $5.1M | 0.2% | 35K | New | |||
| 117 | $LITE | Lumentum Holdings Inc. | Technology | $5.0M | 0.2% | 5,822 | — | |||
| 118 | $GNRC | GENERAC HOLDINGS INC. | Technology | $4.9M | 0.2% | 17K | New | |||
| 119 | $BC | BRUNSWICK CORP | Industrials | $4.8M | 0.2% | 57K | New | |||
| 120 | $EQPT | EquipmentShare.com Inc | Industrials | $4.5M | 0.2% | 231K | New | |||
| 121 | $CGNT | Cognyte Software Ltd. | Technology | $4.4M | 0.2% | 500K | New | |||
| 122 | $NOVT | NOVANTA INC | Technology | $4.4M | 0.2% | 27K | -28% | |||
| 123 | $DOUG | Douglas Elliman Inc. | Real Estate | $4.2M | 0.2% | 2.40M | -10% | |||
| 124 | $BOBS | Bob's Discount Furniture, Inc. | Consumer Discretionary | $4.0M | 0.1% | 250K | New | |||
| 125 | $ECG | Everus Construction Group, Inc. | Industrials | $3.9M | 0.1% | 24K | +170% | |||
| 126 | $MEI | METHODE ELECTRONICS INC | Technology | $3.8M | 0.1% | 200K | New | |||
| 127 | $FN | Fabrinet | Technology | $3.6M | 0.1% | 6,418 | -88% | |||
| 128 | $UCTT | Ultra Clean Holdings, Inc. | Technology | $3.5M | 0.1% | 25K | -26% | |||
| 129 | $KTOS | KRATOS DEFENSE & SECURITY SOLUTIONS, INC. | Industrials | $3.3M | 0.1% | 65K | -75% | |||
| 130 | $NXT | Nextpower Inc. | Technology | $3.2M | 0.1% | 27K | -52% | |||
| 131 | $HAFN | Hafnia Ltd | Industrials | $2.4M | 0.1% | 367K | -81% | |||
| 132 | $NTRA | Natera, Inc. | Healthcare | $2.3M | 0.1% | 8,532 | -25% | |||
| 133 | $GH | Guardant Health, Inc. | Healthcare | $2.1M | 0.1% | 14K | -2% | |||
| 134 | $GCT | GigaCloud Technology Inc | Consumer Discretionary | $2.1M | 0.1% | 66K | +26% | |||
| 135 | $GOOG | Alphabet Inc. | Technology | $2.0M | 0.1% | 5,710 | — | |||
| 136 | $AAOI | APPLIED OPTOELECTRONICS, INC. | Technology | $1.8M | 0.1% | 12K | -60% | |||
| 137 | $IESC | IES Holdings, Inc. | Industrials | $1.4M | 0.1% | 1,940 | -84% | |||
| 138 | $CWST | CASELLA WASTE SYSTEMS INC | Utilities | $1.4M | 0.1% | 15K | -3% | |||
| 139 | $PL | Planet Labs PBC | Technology | $1.2M | 0.1% | 37K | -22% | |||
| 140 | $AMSC | AMERICAN SUPERCONDUCTOR CORP /DE/ | Technology | $1.2M | 0.1% | 29K | -90% | |||
| 141 | $DAN | DANA Inc | Industrials | $901K | 0.0% | 33K | -3% | |||
| 142 | $DBRG-PH | DigitalBridge Group, Inc. | Financials | $896K | 0.0% | 57K | -85% | |||
| 143 | $LINC | LINCOLN EDUCATIONAL SERVICES CORP | Consumer Discretionary | $699K | 0.0% | 14K | — | |||
| 144 | $LHX | L3HARRIS TECHNOLOGIES, INC. /DE/ | Technology | $627K | 0.0% | 2,157 | — | |||
| 145 | $LPRO | Open Lending Corp | Financials | $569K | 0.0% | 183K | -97% | |||
| 146 | $TLX | Telix Pharmaceuticals Ltd | Healthcare | $293K | 0.0% | 25K | -95% | |||
| 147 | $GDS | GDS Holdings Ltd | Technology | $274K | 0.0% | 9,120 | -40% | |||
| 148 | $TALO | TALOS ENERGY INC. | Energy | $172K | 0.0% | 13K | -96% |
What changed in Q2 2026
Against the previous quarter's 13F: 36 new, 50 added to, 58 trimmed, 32 sold out. Share-count changes; largest moves by dollar size first.
New positions (36)
first bought this quarter
$SRADSportradar Group AG$27.2M
first bought this quarter
$BANDBandwidth Inc.$26.1M
first bought this quarter
$KTBKontoor Brands, Inc.$24.3M
first bought this quarter
$ECPGENCORE CAPITAL GROUP INC$23.9M
first bought this quarter
$BBBLACKBERRY Ltd$21.7M
first bought this quarter
+30 more in the Excel export
Added to (50)
now $127.6M
now $54.2M
now $72.8M
now $47.9M
now $42.6M
$OSKOSHKOSH CORP+767%
now $24.2M
+44 more in the Excel export
Trimmed (58)
now $95.0M
now $37.1M
$BIDUBaidu, Inc.-74%
now $11.0M
$FNFabrinet-88%
now $3.6M
now $83.8M
now $46.3M
+52 more in the Excel export
Sold out (32)
$PBFPBF Energy Inc.was $38.1M
held 1 qtr
$CRGYCrescent Energy Cowas $35.1M
held 2 qtrs
$CNRCore Natural Resources, Inc.was $24.8M
held 2 qtrs
$MUSAMurphy USA Inc.was $23.8M
held 1 qtr
$CRCLCircle Internet Group, Inc.was $20.4M
held 1 qtr
$PRIMPrimoris Services Corpwas $18.7M
+26 more in the Excel export
Holdings by quarter
Every 13F Portolan Capital Management, LLC has filed, 41 earlier quarters. Pick one to see what it held then.
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Portfolio Overview
Portolan Capital Management, LLC disclosed 148 positions worth $2.7B in its Form 13F-HR for Q2 2026, led by $VPG (Vishay Precision Group, Inc.) at 5.7% of the equity portfolio, followed by $VIRT and $TTMI. During the quarter the fund opened 36 new positions and exited 32 — including a new stake in $PENG and a full exit from $PBF. The portfolio is most concentrated in Technology (44.4% of disclosed assets). All figures are sourced directly from Portolan Capital Management, LLC’s Form 13F-HR filing with the SEC under CIK 1350290.
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