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SeaBridge Investment Advisors LLC: STX position timeline

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

SeaBridge Investment Advisors LLC held 16,891 STX shares at 2026-06-30 per its 13F-HR filed 2026-07-17.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 16,891 shares
    Change vs previous 13F -4,800 shares

    2.36% of the 13F portfolio, value $16,299,815.

    13F-HR 0001304229-26-000004 filed by SeaBridge Investment 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 21,691 shares
    Change vs previous 13F -2,941 shares

    1.44% of the 13F portfolio, value $8,497,667.

    13F-HR 0001304229-26-000003 filed by SeaBridge Investment 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 24,632 shares
    Change vs previous 13F -1,213 shares

    1.12% of the 13F portfolio, value $6,783,407.

    13F-HR 0001304229-26-000001 filed by SeaBridge Investment 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 25,845 shares
    Change vs previous 13F -2,610 shares

    0.99% of the 13F portfolio, value $6,100,971.

    13F-HR 0001304229-25-000009 filed by SeaBridge Investment 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 28,455 shares
    Change vs previous 13F -4,853 shares

    0.76% of the 13F portfolio, value $4,106,911.

    13F-HR 0001085146-25-003905 filed by SeaBridge Investment 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 33,308 shares
    Change vs previous 13F -4,185 shares

    0.61% of the 13F portfolio, value $2,829,515.

    13F-HR 0001085146-25-002561 filed by SeaBridge Investment 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 37,493 shares
    Change vs previous 13F -903 shares

    0.68% of the 13F portfolio, value $3,236,021.

    13F-HR 0001085146-25-000452 filed by SeaBridge Investment 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 38,396 shares
    Change vs previous 13F not available

    1.03% of the 13F portfolio, value $4,205,514.

    13F-HR 0001085146-24-005337 filed by SeaBridge Investment Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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