Portolan Capital Management, Llc Portfolio Stock Holdings
According to the SEC 13F filed on August 14, 2026, Portolan Capital Management, Llc disclosed 145 stock positions valued at approximately $2.67B as of quarter-end June 30, 2026. The largest holdings include VISHAY PRECISION GROUP INC, VIRTU FINL INC, and TTM TECHNOLOGIES INC.
- Report Period
- June 30, 2026
- No. of Stocks
- 145
- Portfolio Value
- $2.67B
Holdings by Sector
Portolan Capital Management, Llc Portfolio Holdings in Q2 2026
| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| VISHAY PRECISION GROUP INC | VPG | Technology | 5.66% | 1,008,167 | -11,701 | -1.15% | $151,134,315 |
| VIRTU FINL INC | VIRT | Financial Services | 4.78% | 2,142,215 | +930,328 | +76.77% | $127,611,748 |
| TTM TECHNOLOGIES INC | TTMI | Technology | 3.56% | 507,838 | -219,656 | -30.19% | $94,975,863 |
| MODINE MFG CO | MOD | Consumer Cyclical | 3.14% | 313,683 | -98,409 | -23.88% | $83,759,635 |
| QUALYS INC | QLYS | Technology | 2.73% | 529,807 | +290,779 | +121.65% | $72,843,164 |
| SHIFT4 PMTS INC | FOUR | Technology | 2.03% | 1,114,116 | +899,832 | +419.92% | $54,190,602 |
| MAYVILLE ENGR CO INC | MEC | Industrials | 1.82% | 1,299,256 | +478,120 | +58.23% | $48,670,130 |
| ENOVA INTL INC | ENVA | Financial Services | 1.79% | 198,795 | +117,872 | +145.66% | $47,855,920 |
| SEMTECH CORP | SMTC | Technology | 1.79% | 294,619 | -37,708 | -11.35% | $47,684,085 |
| CELESTICA INC | CLS | Technology | 1.73% | 126,856 | -71,007 | -35.89% | $46,277,069 |
| UNITED THERAPEUTICS CORP DEL | UTHR | Healthcare | 1.65% | 81,518 | +18,083 | +28.51% | $44,168,898 |
| GENIUS SPORTS LIMITED | GENI | Other | 1.59% | 7,025,809 | +4,234,791 | +151.73% | $42,576,403 |
| POWELL INDS INC | POWL | Industrials | 1.56% | 145,631 | +69,801 | +92.05% | $41,702,893 |
| PENGUIN SOLUTIONS INC | PENG | Other | 1.55% | 546,173 | +546,173 | +100.00% | $41,514,610 |
| DAVE INC | DAVE | Technology | 1.47% | 105,338 | -104 | -0.10% | $39,247,885 |
| FLEX LTD | FLEX | Other | 1.39% | 229,027 | -214,101 | -48.32% | $37,118,406 |
| ALLIENT INC | ALNT | Technology | 1.39% | 359,685 | +36,232 | +11.20% | $37,022,377 |
| PORCH GROUP INC | PRCH | Technology | 1.38% | 2,456,451 | +311,561 | +14.53% | $36,945,023 |
| AKAMAI TECHNOLOGIES INC | AKAM | Technology | 1.37% | 310,361 | -113,081 | -26.71% | $36,687,774 |
| CANDEL THERAPEUTICS INC | CADL | Healthcare | 1.35% | 3,490,398 | +596,073 | +20.59% | $35,951,099 |
| TALEN ENERGY CORP | TLN | Other | 1.30% | 90,312 | +8,738 | +10.71% | $34,703,289 |
| REGAL REXNORD CORPORATION | RRX | Industrials | 1.23% | 137,498 | +83,523 | +154.74% | $32,750,649 |
| LANTHEUS HLDGS INC | LNTH | Healthcare | 1.20% | 288,691 | -128,699 | -30.83% | $32,027,380 |
| BIOGEN INC | BIIB | Healthcare | 1.16% | 142,856 | +24,375 | +20.57% | $30,865,467 |
| VEECO INSTRS INC DEL | VECO | Technology | 1.14% | 401,639 | +148,260 | +58.51% | $30,444,236 |
| LUXEXPERIENCE BV | MYTE | Consumer Cyclical | 1.13% | 4,053,147 | +319,204 | +8.55% | $30,114,882 |
| ZETA GLOBAL HOLDINGS CORP | ZETA | Technology | 1.11% | 1,502,738 | +1,016,467 | +209.03% | $29,573,884 |
| SPORTRADAR GROUP AG | SRAD | Other | 1.02% | 1,819,949 | +1,819,949 | +100.00% | $27,244,637 |
| CANADA GOOSE HLDGS INC | GOOS | Consumer Cyclical | 0.98% | 2,750,523 | -467,754 | -14.53% | $26,157,474 |
| BANDWIDTH INC | BAND | Technology | 0.98% | 412,701 | +75,827 | +22.51% | $26,123,973 |
Showing 30 of 145 holdings in the latest reporting period.