Skip to content
Disclosery

SEI INVESTMENTS CO: KOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SEI INVESTMENTS CO on KOS, newest first. How the timeline and the estimate are built.

SEI INVESTMENTS CO held 1,000,238 KOS 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 1,000,238 shares
    Change vs previous 13F -515,754 shares

    <0.01% of the 13F portfolio, value $2,110,502.

    13F-HR 0002048251-26-006553 filed by SEI INVESTMENTS CO
    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 1,515,992 shares
    Change vs previous 13F +658,414 shares

    <0.01% of the 13F portfolio, value $4,214,458.

    13F-HR 0002048251-26-003739 filed by SEI INVESTMENTS CO
    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 857,578 shares
    Change vs previous 13F +575,618 shares

    <0.01% of the 13F portfolio, value $778,166.

    13F-HR 0000350894-26-000005 filed by SEI INVESTMENTS CO
    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 281,960 shares
    Change vs previous 13F +74,666 shares

    <0.01% of the 13F portfolio, value $468,055.

    13F-HR 0002048251-25-002343 filed by SEI INVESTMENTS CO
    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 207,294 shares
    Change vs previous 13F -30,812 shares

    <0.01% of the 13F portfolio, value $356,543.

    13F-HR 0001041062-25-000162 filed by SEI INVESTMENTS CO
    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/A 238,106 shares
    Change vs previous 13F +92,948 shares

    <0.01% of the 13F portfolio, value $542,884.

    13F-HR/A 0001041062-25-000106 filed by SEI INVESTMENTS CO
    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 145,158 shares
    Change vs previous 13F +17,808 shares

    <0.01% of the 13F portfolio, value $496,442.

    13F-HR 0001041062-25-000019 filed by SEI INVESTMENTS CO
    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 127,350 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $513,228.

    13F-HR 0001041062-24-000165 filed by SEI INVESTMENTS CO
    Filed (acceptance time not in the bulk data set), ingested

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