Latest Portolan Capital Management, LLC Stock Portfolio
Portolan Capital Management, LLC Performance:
2025 Q3: 10.54%YTD: 10.39%2024: 30.27%
Performance for 2025 Q3 is 10.54%, and YTD is 10.39%, and 2024 is 30.27%.
About Portolan Capital Management, LLC and 13F Hedge Fund Stock Holdings
In it's latest 13F Holdings report, Portolan Capital Management, LLC reported an equity portfolio of $1.8 Billions as of 30 Sep, 2025.
The top stock holdings of Portolan Capital Management, LLC are MOD, TTMI, ELF. The fund has invested 4.6% of it's portfolio in MODINE MFG CO and 3.7% of portfolio in TTM TECHNOLOGIES INC.
The fund managers got completely rid off SLM CORP (SLM), POTBELLY CORP (PBPB) and RAMACO RES INC (METC) stocks. They significantly reduced their stock positions in L3HARRIS TECHNOLOGIES INC (LHX), WILLDAN GROUP INC (WLDN) and WISDOMTREE INC (WETF). Portolan Capital Management, LLC opened new stock positions in NLIGHT INC (LASR), WOLVERINE WORLD WIDE INC (WWW) and POWER SOLUTIONS INTL INC (PSIX). The fund showed a lot of confidence in some stocks as they added substantially to SUPER MICRO COMPUTER INC (SMCI), TOWER SEMICONDUCTOR LTD (TSEM) and THE REAL BROKERAGE INC (REAX).
The top stock holdings of Portolan Capital Management, LLC are MOD, TTMI, ELF. The fund has invested 4.6% of it's portfolio in MODINE MFG CO and 3.7% of portfolio in TTM TECHNOLOGIES INC.
The fund managers got completely rid off SLM CORP (SLM), POTBELLY CORP (PBPB) and RAMACO RES INC (METC) stocks. They significantly reduced their stock positions in L3HARRIS TECHNOLOGIES INC (LHX), WILLDAN GROUP INC (WLDN) and WISDOMTREE INC (WETF). Portolan Capital Management, LLC opened new stock positions in NLIGHT INC (LASR), WOLVERINE WORLD WIDE INC (WWW) and POWER SOLUTIONS INTL INC (PSIX). The fund showed a lot of confidence in some stocks as they added substantially to SUPER MICRO COMPUTER INC (SMCI), TOWER SEMICONDUCTOR LTD (TSEM) and THE REAL BROKERAGE INC (REAX).
Portolan Capital Management, LLC Annual Return Estimates Vs S&P 500
Our best estimate is that Portolan Capital Management, LLC made a return of 10.54% in the last quarter. In trailing 12 months, it's portfolio return was 13.65%.
New Buys
| Ticker | $ Bought |
|---|---|
| nlight inc | 22,808,800 |
| wolverine world wide inc | 21,859,400 |
| power solutions intl inc | 19,231,900 |
| first solar inc | 18,347,700 |
| wix com ltd | 17,018,600 |
| acm resh inc | 15,881,300 |
| solaris energy infras inc | 14,526,700 |
| sphere entertainment co | 12,946,900 |
New stocks bought by Portolan Capital Management, LLC
Additions
| Ticker | % Inc. |
|---|---|
| super micro computer inc | 200 |
| tower semiconductor ltd | 198 |
| the real brokerage inc | 190 |
| domo inc | 142 |
| cellebrite di ltd | 139 |
| olaplex hldgs inc | 132 |
| celsius hldgs inc | 125 |
| bandwidth inc | 115 |
Additions to existing portfolio by Portolan Capital Management, LLC
Reductions
| Ticker | % Reduced |
|---|---|
| l3harris technologies inc | -89.8 |
| willdan group inc | -89.71 |
| wisdomtree inc | -89.63 |
| bluelinx hldgs inc | -88.66 |
| tapestry inc | -88.06 |
| sportsmans whse hldgs inc | -77.08 |
| genedx holdings corp | -72.85 |
| sportradar group ag | -61.44 |
Portolan Capital Management, LLC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| health catalyst inc | -7,466,140 |
| payoneer global inc | -12,037,700 |
| potbelly corp | -20,429,400 |
| oportun finl corp | -11,595,400 |
| ramaco res inc | -18,649,400 |
| grab holdings limited | -6,811,280 |
| myriad genetics inc | -6,177,650 |
| el pollo loco hldgs inc | -8,268,640 |
Portolan Capital Management, LLC got rid off the above stocks
Sector Distribution
Portolan Capital Management, LLC has about 27.2% of it's holdings in Technology sector.
| Sector | % |
|---|---|
| Technology | 27.2 |
| Others | 24.7 |
| Industrials | 14.2 |
| Consumer Cyclical | 9.5 |
| Healthcare | 9.1 |
| Consumer Defensive | 6.2 |
| Real Estate | 3.8 |
| Financial Services | 2.6 |
| Communication Services | 1.2 |
Market Cap. Distribution
Portolan Capital Management, LLC has about 8.3% of it's portfolio invested in the large-cap and mega-cap stocks.
| Category | % |
|---|---|
| SMALL-CAP | 32.8 |
| MID-CAP | 28.8 |
| UNALLOCATED | 24.5 |
| LARGE-CAP | 6.8 |
| MICRO-CAP | 4.9 |
| MEGA-CAP | 1.5 |
Stocks belong to which Index?
About 61.7% of the stocks held by Portolan Capital Management, LLC either belong to S&P 500 or RUSSELL 2000 index.
| Index | % |
|---|---|
| RUSSELL 2000 | 57.5 |
| Others | 38.3 |
| S&P 500 | 4.2 |
Portolan Capital Management, LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Portolan Capital Management, LLC
Portolan Capital Management, LLC has 119 stocks in it's portfolio. About 31.6% of the portfolio is in top 10 stocks. FOUR proved to be the most loss making stock for the portfolio. KTOS was the most profitable stock for Portolan Capital Management, LLC last quarter.
Last Reported on: 13 Nov, 2025| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| AAOI | applied optoelectronics inc | 0.77 | 546,219 | 14,163,500 | added | 19.96 | ||
| ACI | albertsons cos inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ACMR | acm resh inc | 0.86 | 405,860 | 15,881,300 | new | |||
| ALGN | align technology inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AMOT | allient inc | 0.62 | 257,653 | 11,530,000 | new | |||
| AMRC | ameresco inc | 0.32 | 174,903 | 5,873,240 | new | |||
| AVAV | aerovironment inc | 2.52 | 147,929 | 46,581,400 | reduced | -17.27 | ||
| AVPT | avepoint inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| BAND | bandwidth inc | 0.67 | 745,802 | 12,432,500 | added | 115 | ||
| BELFB | bel fuse inc | 0.94 | 123,766 | 17,453,500 | added | 97.94 | ||
| BIO | bio rad labs inc | 0.70 | 46,440 | 13,021,300 | reduced | -26.03 | ||
| BKSY | blacksky technology inc | 0.42 | 389,802 | 7,854,510 | new | |||
| BOOT | boot barn hldgs inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| BV | brightview hldgs inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| BXC | bluelinx hldgs inc | 0.03 | 6,700 | 489,636 | reduced | -88.66 | ||
| CADL | candel therapeutics inc | 0.38 | 1,384,140 | 7,059,120 | reduced | -14.65 | ||
| CDNA | caredx inc | 0.73 | 933,532 | 13,573,600 | added | 48.19 | ||
| CELH | celsius hldgs inc | 0.51 | 164,031 | 9,430,140 | added | 125 | ||
| CIEN | ciena corp | 0.70 | 88,786 | 12,933,500 | new | |||
| CLBT | cellebrite di ltd | 2.43 | 2,419,660 | 44,836,300 | added | 139 | ||