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Disclosery

Portolan Capital Management, LLC: METC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Portolan Capital Management, LLC on METC, newest first. How the timeline and the estimate are built.

Portolan Capital Management, LLC held 0 METC shares at 2026-03-31 per its 13F-HR filed 2026-05-15.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -561,718 shares

    13F-HR 0001104659-26-062488 filed by Portolan Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 561,718 shares
    Change vs previous 13F +561,718 shares

    0.54% of the 13F portfolio, value $10,110,924.

    13F-HR 0001104659-26-016304 filed by Portolan Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -1,419,285 shares

    13F-HR 0001104659-25-111284 filed by Portolan Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  4. period ended2025-06-30
    13F 1,419,285 shares
    Change vs previous 13F not available

    1.17% of the 13F portfolio, value $18,649,405.

    13F-HR 0001104659-25-077571 filed by Portolan Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).