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Disclosery

Portolan Capital Management, LLC: ALNT position timeline

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

Portolan Capital Management, LLC held 359,685 ALNT 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 359,685 shares
    Change vs previous 13F +36,232 shares

    1.39% of the 13F portfolio, value $37,022,377.

    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 323,453 shares
    Change vs previous 13F +21,565 shares

    1.02% of the 13F portfolio, value $19,112,838.

    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 301,888 shares
    Change vs previous 13F +44,235 shares

    0.87% of the 13F portfolio, value $16,226,480.

    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 257,653 shares
    Change vs previous 13F not available

    0.62% of the 13F portfolio, value $11,529,972.

    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).