Portolan Capital Management, LLC 13F Holdings · Q2 2026
Portolan Capital Management, LLC reported 148 securities worth $2.67B in its SEC 13F filing for Q2 2026 (period ended 2026-06-30). Top holdings: VPG (5.66%), VIRT (4.78%), TTMI (3.56%). Among its top 25 positions this quarter: 1 new, 15 added, 9 trimmed.
| Rank | Ticker | Company | Value | % Portfolio | Shares | Action |
|---|---|---|---|---|---|---|
| 1 | VPG | VISHAY PRECISION GROUP INC | $151.1M | 5.66% | 1.0M | Trimmed |
| 2 | VIRT | VIRTU FINL INC | $127.6M | 4.78% | 2.1M | Added |
| 3 | TTMI | TTM TECHNOLOGIES INC | $95.0M | 3.56% | 507,838 | Trimmed |
| 4 | MOD | MODINE MFG CO | $83.8M | 3.14% | 313,683 | Trimmed |
| 5 | QLYS | QUALYS INC | $72.8M | 2.73% | 529,807 | Added |
| 6 | FOUR | SHIFT4 PMTS INC | $54.2M | 2.03% | 1.1M | Added |
| 7 | MEC | MAYVILLE ENGR CO INC | $48.7M | 1.82% | 1.3M | Added |
| 8 | ENVA | ENOVA INTL INC | $47.9M | 1.79% | 198,795 | Added |
| 9 | SMTC | SEMTECH CORP | $47.7M | 1.79% | 294,619 | Trimmed |
| 10 | CLS | CELESTICA INC | $46.3M | 1.73% | 126,856 | Trimmed |
| 11 | UTHR | UNITED THERAPEUTICS CORP DEL | $44.2M | 1.65% | 81,518 | Added |
| 12 | GENI | GENIUS SPORTS LIMITED | $42.6M | 1.59% | 7.0M | Added |
| 13 | POWL | POWELL INDS INC | $41.7M | 1.56% | 145,631 | Added |
| 14 | PENG | PENGUIN SOLUTIONS INC | $41.5M | 1.55% | 546,173 | New |
| 15 | DAVE | DAVE INC | $39.2M | 1.47% | 105,338 | Trimmed |
| 16 | ALNT | ALLIENT INC | $37.0M | 1.39% | 359,685 | Added |
| 17 | FLEX | FLEX LTD | $37.1M | 1.39% | 229,027 | Trimmed |
| 18 | PRCH | PORCH GROUP INC | $36.9M | 1.38% | 2.5M | Added |
| 19 | AKAM | AKAMAI TECHNOLOGIES INC | $36.7M | 1.37% | 310,361 | Trimmed |
| 20 | CADL | CANDEL THERAPEUTICS INC | $36.0M | 1.35% | 3.5M | Added |
| 21 | TLN | TALEN ENERGY CORP | $34.7M | 1.30% | 90,312 | Added |
| 22 | RRX | REGAL REXNORD CORPORATION | $32.8M | 1.23% | 137,498 | Added |
| 23 | LNTH | LANTHEUS HLDGS INC | $32.0M | 1.20% | 288,691 | Trimmed |
| 24 | BIIB | BIOGEN INC | $30.9M | 1.16% | 142,856 | Added |
| 25 | VECO | VEECO INSTRS INC DEL | $30.4M | 1.14% | 401,639 | Added |
Source: SEC Form 13F filings · as of 2026-06-30
Every position in this 13F-HR, with its change from the prior quarter.
13F holdings, latest quarter
SourceSEC EDGAR13F-HR