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Janus Henderson: SEPN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Janus Henderson on SEPN, newest first. How the timeline and the estimate are built.

Janus Henderson held 1,307,500 SEPN 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 1,307,500 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.02% of the 13F portfolio, value $43,722,800.

    13F-HR 0001085146-26-000611 filed by Jupiter Topco 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/A 890,754 shares
    Change vs previous 13F +890,754 shares

    0.01% of the 13F portfolio, value $21,333,558.

    13F-HR/A 0001085146-26-000420 filed by JANUS HENDERSON GROUP PLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -1,096,302 shares

    13F-HR 0001085146-25-003208 filed by JANUS HENDERSON GROUP PLC
    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 ended2024-12-31
    13F 1,096,302 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $25,110,797.

    13F-HR 0001085146-25-001531 filed by JANUS HENDERSON GROUP PLC
    Filed (acceptance time not in the bulk data set), ingested

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