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Disclosery

Jefferies Financial Group Inc.: KOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Jefferies Financial Group Inc. on KOS, newest first. How the timeline and the estimate are built.

Jefferies Financial Group Inc. held 0 KOS shares at 2026-03-31 per its 13F-HR filed 2026-05-08.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -150,000 shares

    13F-HR 0000096223-26-000018 filed by Jefferies Financial Group Inc.
    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.

  2. period ended2025-12-31
    13F 150,000 shares
    Change vs previous 13F +150,000 shares

    <0.01% of the 13F portfolio, value $136,110.

    13F-HR 0000096223-26-000010 filed by Jefferies Financial Group Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -1,644,133 shares

    13F-HR 0001085146-25-004924 filed by Jefferies Financial Group Inc.
    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.

  4. period ended2025-03-31
    13F 1,644,133 shares
    Change vs previous 13F +1,644,133 shares

    0.06% of the 13F portfolio, value $3,748,623.

    13F-HR 0001085146-25-002834 filed by Jefferies Financial Group Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F/A 0 shares
    Change vs previous 13F -398,970 shares

    13F-HR/A 0001085146-25-001774 filed by Jefferies Financial Group Inc.
    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.

  6. period ended2024-09-30
    13F 398,970 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $1,607,849.

    13F-HR 0001085146-24-005726 filed by Jefferies Financial Group Inc.
    Filed (acceptance time not in the bulk data set), ingested

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