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Super Investors / Portolan Capital Management, LLC
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Portolan Capital Management, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$2.67B
Positions
148
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (53 quarters reported)

$2.67B $351M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$351M in Q2 2013 → $2.67B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Vishay Precision Group Inc 5.7% Trimmed 1.1% 1,008,167 $151M
VF Virtu Finl Inc 4.8% Added 77% 2,142,215 $128M
Ttm Technologies Inc 3.6% Trimmed 30% 507,838 $95M
MM Modine Mfg Co 3.1% Trimmed 24% 313,683 $83.8M
Qualys Inc 2.7% Added 122% 529,807 $72.8M
SP Shift4 Pmts Inc 2.0% Added 420% 1,114,116 $54.2M
ME Mayville Engr Co Inc 1.8% Added 58% 1,299,256 $48.7M
EI Enova Intl Inc 1.8% Added 146% 198,795 $47.9M
Semtech Corp 1.8% Trimmed 11% 294,619 $47.7M
Celestica Inc 1.7% Trimmed 36% 126,856 $46.3M
UT United Therapeutics Corp Del 1.7% Added 29% 81,518 $44.2M
Genius Sports Limited 1.6% Added 152% 7,025,809 $42.6M
PI Powell Inds Inc 1.6% Added 92% 145,631 $41.7M
Penguin Solutions Inc 1.6% New 546,173 $41.5M
D Dave Inc 1.5% Trimmed 0.1% 105,338 $39.2M
Flex Ltd 1.4% Trimmed 48% 229,027 $37.1M
Allient Inc 1.4% Added 11% 359,685 $37M
Porch Group Inc 1.4% Added 15% 2,456,451 $36.9M
Akamai Technologies Inc 1.4% Trimmed 27% 310,361 $36.7M
Candel Therapeutics Inc 1.3% Added 21% 3,490,398 $36M
Talen Energy Corp 1.3% Added 11% 90,312 $34.7M
Regal Rexnord Corporation 1.2% Added 155% 137,498 $32.8M
LH Lantheus Hldgs Inc 1.2% Trimmed 31% 288,691 $32M
Biogen Inc 1.2% Added 21% 142,856 $30.9M
VI Veeco Instrs Inc Del 1.1% Added 59% 401,639 $30.4M
LB Luxexperience Bv 1.1% Added 8.5% 4,053,147 $30.1M
Zeta Global Holdings Corp 1.1% Added 209% 1,502,738 $29.6M
Cellebrite Di Ltd 1.1% Trimmed 11% 1,932,514 $28.2M
Sportradar Group Ag 1.0% New 1,819,949 $27.2M
CG Canada Goose Hldgs Inc 1.0% Trimmed 15% 2,750,523 $26.2M
Bandwidth Inc 1.0% New 412,701 $26.1M
Warby Parker Inc 1.0% Added 69% 843,862 $25.6M
Kontoor Brands Inc 0.9% New 292,115 $24.3M
Oshkosh Corp 0.9% Added 767% 157,641 $24.2M
EC Encore Cap Group Inc 0.9% New 255,715 $23.9M
Twilio Inc 0.9% Added 54% 115,397 $23.8M
Sezzle Inc 0.9% Added 94% 135,743 $23.3M
Remitly Global Inc 0.9% Added 46% 1,017,592 $22.8M
AR Acm Resh Inc 0.8% Added 113% 177,432 $22.5M
Element Solutions Inc 0.8% Added 112% 469,213 $22.4M
N Nokia Corp 0.8% Trimmed 31% 1,645,761 $21.9M
Blackberry Ltd 0.8% New 1,714,461 $21.7M
IF International FLAVORS&FRAGRA 0.8% New 269,229 $21.3M
Pulse Biosciences Inc 0.8% Added 2.7% 753,333 $20.9M
Moog Inc 0.8% Added 67% 49,274 $20.9M
The Real Brokerage Inc 0.8% Trimmed 24% 11,042,364 $20.1M
Caredx Inc 0.7% Added 101% 684,805 $19.5M
PP Par Pac Holdings Inc 0.7% Trimmed 51% 341,863 $19.2M
Vishay Intertechnology Inc 0.7% New 351,515 $18.9M
TI Take-two Interactive Softwar 0.7% Added 125% 72,487 $18.1M
GI Gates Indl Corp PLC 0.7% New 641,587 $17.9M
MC Mamas Creations Inc 0.7% Trimmed 16% 984,869 $17.6M
Kura Sushi Usa Inc 0.7% Added 0.3% 302,010 $17.4M
Sanmina Corp 0.6% Added 150% 68,255 $17.3M
Park Aerospace Corp 0.6% Added 8.9% 447,390 $17.1M
Graham Corp 0.6% Added 32% 136,925 $16.9M
Bel Fuse Inc 0.6% Trimmed 10.0% 47,856 $15.9M
OH On Hldg Ag 0.6% Added 118% 441,137 $15.6M
Amer Sports Inc 0.6% Added 27% 452,880 $15.3M
Cohu Inc 0.6% New 206,120 $15.2M

Showing top 60 of 148 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
VF Virtu Finl Inc Added +930,328 +$55.4M 4.8%
SP Shift4 Pmts Inc Added +899,832 +$43.8M 2.0%
Penguin Solutions Inc New +546,173 +$41.5M 1.6%
Ttm Technologies Inc Trimmed −219,656 −$41.1M 3.6%
Qualys Inc Added +290,779 +$40M 2.7%
Pbf Energy Inc Exited −799,998 −$38.1M
Crescent Energy Company Exited −2,601,142 −$35.1M
Flex Ltd Trimmed −214,101 −$34.7M 1.4%
Baidu Inc Trimmed −270,566 −$30.9M 0.4%
EI Enova Intl Inc Added +117,872 +$28.4M 1.8%

Showing the 10 largest of 176 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
PP Par Pac Holdings Inc New +693,834 +$43.5M 2.3%
Ttm Technologies Inc Trimmed −419,188 −$40.8M 3.8%
Pbf Energy Inc New +799,998 +$38.1M 2.0%
VF Virtu Finl Inc Added +835,604 +$36.7M 2.8%
Crescent Energy Company Added +2,561,242 +$34.6M 1.9%
MM Modine Mfg Co Trimmed −123,855 −$26.8M 4.8%
Murphy Usa Inc New +48,107 +$23.8M 1.3%
Fabrinet Added +43,885 +$22.9M 1.5%
Nlight Inc Trimmed −364,857 −$20.8M 0.7%
First Solar Inc Exited −78,761 −$20.6M

Showing the 10 largest of 181 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
Digitalbridge Group Inc Trimmed −4,643,280 −$71.2M 0.7%
Akamai Technologies Inc New +524,321 +$45.7M 2.5%
Baidu Inc Added +259,101 +$33.9M 1.8%
Celestica Inc Trimmed −79,281 −$23.4M 2.7%
KD Kratos Defense &SEC Solutio Trimmed −302,100 −$22.9M 1.2%
E L F Beauty Inc Trimmed −295,203 −$22.4M 0.8%
PI Powell Inds Inc Trimmed −69,129 −$22M 1.4%
WW Wolverine World Wide Inc Exited −796,627 −$21.9M
Tower Semiconductor Ltd Trimmed −178,780 −$21M 0.9%
Cellebrite Di Ltd Trimmed −1,132,375 −$20.4M 1.2%

Showing the 10 largest of 167 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 13, 2025

Company Action Shares changed Value of change % of portfolio
Celestica Inc Trimmed −298,037 −$73.4M 3.4%
KD Kratos Defense &SEC Solutio Trimmed −732,317 −$66.9M 2.9%
Digitalbridge Group Inc Added +2,386,066 +$27.9M 3.5%
Cellebrite Di Ltd Added +1,407,818 +$26.1M 2.4%
Domo Inc Added +1,576,884 +$25M 2.3%
Slm Corp Exited −710,291 −$23.3M
Nlight Inc New +769,788 +$22.8M 1.2%
WW Wolverine World Wide Inc New +796,627 +$21.9M 1.2%
Tapestry Inc Trimmed −190,843 −$21.6M 0.2%
Semtech Corp Added +289,844 +$20.7M 2.6%

Showing the 10 largest of 158 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 13, 2025

Company Action Shares changed Value of change % of portfolio
Aerovironment Inc New +178,816 +$51M 3.2%
LH Lantheus Hldgs Inc Trimmed −612,832 −$50.2M 1.3%
Ebay Inc. Exited −474,658 −$32.1M
Slm Corp Trimmed −801,983 −$26.3M 1.5%
GI Gates Indl Corp PLC Trimmed −1,072,579 −$24.7M 1.0%
PI Powell Inds Inc Added +117,334 +$24.7M 2.3%
Celestica Inc Added +156,673 +$24.5M 5.4%
LN Lendingtree Inc New Exited −438,795 −$22.1M
LS Liquidity Svcs Inc Exited −626,358 −$19.4M
RR Ramaco Res Inc New +1,419,285 +$18.6M 1.2%

Showing the 10 largest of 145 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Snap Inc Exited −2,362,784 −$25.4M
Talen Energy Corp Trimmed −111,711 −$22.3M 0.6%
LN Lendingtree Inc New New +438,795 +$22.1M 1.7%
SP Shift4 Pmts Inc Added +265,528 +$21.7M 2.5%
Semtech Corp Trimmed −597,904 −$20.6M 0.2%
LS Liquidity Svcs Inc New +626,358 +$19.4M 1.5%
Celestica Inc Trimmed −234,021 −$18.4M 2.4%
Slm Corp Added +611,755 +$18M 3.4%
Ebay Inc. Added +236,526 +$16M 2.4%
CS Core Scientific Inc New Exited −1,025,508 −$14.4M

Showing the 10 largest of 152 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 13, 2025

Company Action Shares changed Value of change % of portfolio
Semtech Corp Added +573,175 +$35.5M 2.8%
Phathom Pharmaceuticals Inc Exited −1,699,918 −$30.7M
GH Gds Hldgs Ltd Exited −1,302,533 −$26.6M
Snap Inc New +2,362,784 +$25.4M 1.7%
GI Gates Indl Corp PLC New +1,117,238 +$23M 1.5%
Avid Bioservices Inc Trimmed −1,638,953 −$20.2M 0.4%
Genesco Inc New +464,265 +$19.8M 1.3%
AR Acm Resh Inc Exited −921,451 −$18.7M
Extreme Networks Trimmed −1,027,911 −$17.2M
Honest Co Inc Trimmed −2,309,349 −$16M 2.5%

Showing the 10 largest of 167 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
Talen Energy Corp New +221,145 +$39.4M 2.9%
Radnet Inc Added +390,011 +$27.1M 2.5%
GH Gds Hldgs Ltd New +1,302,533 +$26.6M 1.9%
Align Technology Inc New +60,386 +$15.4M 1.1%
Zeta Global Holdings Corp Trimmed −514,058 −$15.3M 3.0%
Western Digital Corp. Trimmed −220,770 −$15.1M 0.7%
Nvent Electric PLC Trimmed −210,249 −$14.8M 0.7%
AI American Intl Group Inc Exited −195,168 −$14.5M
Biolife Solutions Inc Trimmed −576,352 −$14.4M 0.8%
Compass Inc New +2,287,336 +$14M 1.0%

Showing the 10 largest of 153 changes.

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