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Rock Point Advisors, LLC: ATKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rock Point Advisors, LLC on ATKR, newest first. How the timeline and the estimate are built.

Rock Point Advisors, LLC held 71,688 ATKR shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 71,688 shares
    Change vs previous 13F -13,997 shares

    1.33% of the 13F portfolio, value $5,451,156.

    13F-HR 0001301540-26-000004 filed by Rock Point Advisors, 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 85,685 shares
    Change vs previous 13F +683 shares

    1.37% of the 13F portfolio, value $5,047,703.

    13F-HR 0001301540-26-000002 filed by Rock Point Advisors, 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 85,002 shares
    Change vs previous 13F -23,539 shares

    1.35% of the 13F portfolio, value $5,376,377.

    13F-HR 0001301540-26-000001 filed by Rock Point Advisors, 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 108,541 shares
    Change vs previous 13F +22,203 shares

    1.8% of the 13F portfolio, value $6,809,862.

    13F-HR 0001301540-25-000009 filed by Rock Point Advisors, 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 86,338 shares
    Change vs previous 13F +32,042 shares

    1.72% of the 13F portfolio, value $6,091,146.

    13F-HR 0001301540-25-000005 filed by Rock Point Advisors, 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 54,296 shares
    Change vs previous 13F +5,917 shares

    1% of the 13F portfolio, value $3,257,217.

    13F-HR 0001301540-25-000003 filed by Rock Point Advisors, 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 48,379 shares
    Change vs previous 13F -5,731 shares

    1.18% of the 13F portfolio, value $4,037,228.

    13F-HR 0001301540-25-000001 filed by Rock Point Advisors, 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 54,110 shares
    Change vs previous 13F not available

    1.25% of the 13F portfolio, value $4,585,281.

    13F-HR 0001301540-24-000008 filed by Rock Point Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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