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Disclosery

Granite Investment Partners, LLC: ATEC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Granite Investment Partners, LLC on ATEC, newest first. How the timeline and the estimate are built.

Granite Investment Partners, LLC held 1,213,570 ATEC shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,213,570 shares
    Change vs previous 13F +18,414 shares

    0.54% of the 13F portfolio, value $10,497,381.

    13F-HR 0001398344-26-013762 filed by Granite Investment Partners, 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 1,195,156 shares
    Change vs previous 13F +54,043 shares

    0.8% of the 13F portfolio, value $13,003,297.

    13F-HR 0001398344-26-007897 filed by Granite Investment Partners, 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 1,141,113 shares
    Change vs previous 13F -238,917 shares

    1.42% of the 13F portfolio, value $24,009,018.

    13F-HR 0001398344-26-002843 filed by Granite Investment Partners, 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 1,380,030 shares
    Change vs previous 13F -340,914 shares

    1.14% of the 13F portfolio, value $20,065,636.

    13F-HR 0001398344-25-020592 filed by Granite Investment Partners, 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 1,720,944 shares
    Change vs previous 13F +1,311,748 shares

    0.93% of the 13F portfolio, value $19,102,478.

    13F-HR 0001398344-25-015229 filed by Granite Investment Partners, 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 409,196 shares
    Change vs previous 13F -165,347 shares

    0.21% of the 13F portfolio, value $4,149,247.

    13F-HR 0001398344-25-009267 filed by Granite Investment Partners, 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 574,543 shares
    Change vs previous 13F -302,434 shares

    0.23% of the 13F portfolio, value $5,274,305.

    13F-HR 0001398344-25-002698 filed by Granite Investment Partners, 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 876,977 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $4,875,992.

    13F-HR 0001398344-24-020459 filed by Granite Investment Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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