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Portolan Capital Management, LLC: CLS position timeline

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

Portolan Capital Management, LLC held 126,856 CLS 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 126,856 shares
    Change vs previous 13F -71,007 shares

    1.73% of the 13F portfolio, value $46,277,069.

    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 197,863 shares
    Change vs previous 13F +25,588 shares

    2.97% of the 13F portfolio, value $55,734,050.

    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 172,275 shares
    Change vs previous 13F -79,281 shares

    2.73% of the 13F portfolio, value $50,926,213.

    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 251,556 shares
    Change vs previous 13F -298,037 shares

    3.35% of the 13F portfolio, value $61,978,367.

    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 549,593 shares
    Change vs previous 13F +156,673 shares

    5.38% of the 13F portfolio, value $85,796,963.

    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 392,920 shares
    Change vs previous 13F -234,021 shares

    2.35% of the 13F portfolio, value $30,966,025.

    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 626,941 shares
    Change vs previous 13F -104,005 shares

    3.89% of the 13F portfolio, value $57,866,654.

    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 730,946 shares
    Change vs previous 13F not available

    2.71% of the 13F portfolio, value $37,365,960.

    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).