Portolan Capital Management Q2 2026 Activity: Significant Increases in VIRT, ENVA & MEC
Insider portfolio tracker reveals Portolan Capital Management's notable purchases and sales during the second quarter of 2026.
According to data from Portolan Capital Management, LLC, significant changes occurred in their portfolio holdings for the period ending June 30th, 2026.
The investment firm demonstrated notable buying activity during this quarter. They significantly increased their stake in VIRTU FINL INC (VIRT), acquiring an additional 930,328 shares which represented a substantial 76.77% growth from the previous quarter.
Other significant purchases included ENOVA INTL INC (ENVA), where they added over half a million shares, and MAYVILLE ENGR CO INC (MEC) with nearly 480,000 new shares acquired. Additionally, Portolan bought considerable amounts of QUALYS INC (QLYS), adding over 290k shares.
Conversely, the data shows substantial selling activity by Portolan during Q2. They sold a large portion of their holdings in CASTLE BIOSCIENCES INC (CSTL), reducing it by over 750,000 shares (-75.65% change). The firm also completely exited positions in several stocks including PARR CORP (PARR) and DHT HOLDINGS INC (Y2065G121), which saw a 97.35% reduction in shares.
Furthermore, Portolan sold significant amounts from positions in BLACKBERRY LTD (BB), though the data shows an increase of 100%, suggesting a prior sale or different interpretation. They also reduced their stake in HAFNIA LTD (Y2990R101) by over 80% (-81.16%) and sold shares from EVOLV TECHNOLOGIES HLDNGS IN (EVLV), reducing it by nearly half (-50.19%).
Overall, the portfolio changes indicate a dynamic approach from Portolan Capital Management during Q2 2026, involving substantial additions to certain sectors and significant reductions or exits in others.