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Disclosery

Portolan Capital Management, LLC: CWST position timeline

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

Portolan Capital Management, LLC held 14,690 CWST shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 14,690 shares
    Change vs previous 13F -410 shares

    0.05% of the 13F portfolio, value $1,424,489.

    13F-HR 0001104659-26-096980 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).

  2. period ended2026-03-31
    13F 15,100 shares
    Change vs previous 13F -125 shares

    0.06% of the 13F portfolio, value $1,198,034.

    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).

  3. period ended2025-12-31
    13F 15,225 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $1,491,137.

    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).

  4. period ended2025-09-30
    13F 15,225 shares
    Change vs previous 13F -78 shares

    0.08% of the 13F portfolio, value $1,444,548.

    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).

  5. period ended2025-06-30
    13F 15,303 shares
    Change vs previous 13F 0 shares

    0.11% of the 13F portfolio, value $1,765,660.

    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).

  6. period ended2025-03-31
    13F 15,303 shares
    Change vs previous 13F -34 shares

    0.13% of the 13F portfolio, value $1,706,438.

    13F-HR 0001104659-25-049320 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).

  7. period ended2024-12-31
    13F 15,337 shares
    Change vs previous 13F -55 shares

    0.11% of the 13F portfolio, value $1,622,808.

    13F-HR 0001104659-25-012988 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).

  8. period ended2024-09-30
    13F 15,392 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $1,531,350.

    13F-HR 0001104659-24-118686 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).