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Portolan Capital Management, LLC: LNTH position timeline

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

Portolan Capital Management, LLC held 288,691 LNTH 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 288,691 shares
    Change vs previous 13F -128,699 shares

    1.2% of the 13F portfolio, value $32,027,380.

    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 417,390 shares
    Change vs previous 13F -58,399 shares

    1.68% of the 13F portfolio, value $31,659,032.

    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 475,789 shares
    Change vs previous 13F +178,581 shares

    1.7% of the 13F portfolio, value $31,663,758.

    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 297,208 shares
    Change vs previous 13F +42,731 shares

    0.82% of the 13F portfolio, value $15,243,798.

    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 254,477 shares
    Change vs previous 13F -612,832 shares

    1.31% of the 13F portfolio, value $20,831,487.

    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 867,309 shares
    Change vs previous 13F +54,679 shares

    6.43% of the 13F portfolio, value $84,649,358.

    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 812,630 shares
    Change vs previous 13F +141,749 shares

    4.89% of the 13F portfolio, value $72,697,880.

    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 670,881 shares
    Change vs previous 13F not available

    5.34% of the 13F portfolio, value $73,629,190.

    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).