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Disclosery

Headlands Technologies LLC: AMKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Headlands Technologies LLC on AMKR, newest first. How the timeline and the estimate are built.

Headlands Technologies LLC held 52,426 AMKR shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 52,426 shares
    Change vs previous 13F +52,426 shares

    0.48% of the 13F portfolio, value $4,520,694.

    13F-HR 0001570271-26-000005 filed by Headlands Technologies 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 0 shares
    Change vs previous 13F -5,157 shares

    13F-HR 0001570271-26-000004 filed by Headlands Technologies LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-12-31
    13F 5,157 shares
    Change vs previous 13F -7,749 shares

    0.02% of the 13F portfolio, value $203,598.

    13F-HR 0001570271-26-000003 filed by Headlands Technologies 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 12,906 shares
    Change vs previous 13F +3,493 shares

    0.03% of the 13F portfolio, value $366,530.

    13F-HR 0001570271-25-000012 filed by Headlands Technologies 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 9,413 shares
    Change vs previous 13F -9,167 shares

    0.02% of the 13F portfolio, value $197,579.

    13F-HR 0001570271-25-000011 filed by Headlands Technologies 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 18,580 shares
    Change vs previous 13F -6,681 shares

    0.04% of the 13F portfolio, value $335,555.

    13F-HR 0001570271-25-000009 filed by Headlands Technologies 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 25,261 shares
    Change vs previous 13F +20,568 shares

    0.07% of the 13F portfolio, value $648,955.

    13F-HR 0001570271-25-000008 filed by Headlands Technologies 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 4,693 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $143,606.

    13F-HR 0001570271-24-000005 filed by Headlands Technologies LLC
    Filed (acceptance time not in the bulk data set), ingested

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