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Summit Street Capital Management, LLC: TNK position timeline

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

Summit Street Capital Management, LLC held 270,880 TNK 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 270,880 shares
    Change vs previous 13F -200,267 shares

    2.47% of the 13F portfolio, value $17,571,985.

    13F-HR 0001595533-26-000004 filed by Summit Street 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 471,147 shares
    Change vs previous 13F 0 shares

    4.88% of the 13F portfolio, value $34,544,497.

    13F-HR 0001595533-26-000003 filed by Summit Street 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 471,147 shares
    Change vs previous 13F -30,627 shares

    3.96% of the 13F portfolio, value $25,168,672.

    13F-HR 0001595533-26-000002 filed by Summit Street 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 501,774 shares
    Change vs previous 13F +63,125 shares

    3.48% of the 13F portfolio, value $25,360,075.

    13F-HR 0001595533-25-000006 filed by Summit Street Capital Management, 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 438,649 shares
    Change vs previous 13F not available

    3.02% of the 13F portfolio, value $18,300,436.

    13F-HR 0001085146-25-005130 filed by Summit Street Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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