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Natixis Investment Managers: SEIC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Natixis Investment Managers on SEIC, newest first. How the timeline and the estimate are built.

Natixis Investment Managers held 461,891 SEIC 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 461,891 shares
    Change vs previous 13F -7,973 shares

    0.05% of the 13F portfolio, value $40,512,000.

    13F-HR 0001018331-26-000006 filed by NATIXIS 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 469,864 shares
    Change vs previous 13F -688 shares

    0.05% of the 13F portfolio, value $36,870,000.

    13F-HR 0001018331-26-000004 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 469,864 shares
    • NATIXIS: 0 shares

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

  3. period ended2025-12-31
    13F 470,552 shares
    Change vs previous 13F -40,716 shares

    0.04% of the 13F portfolio, value $38,594,234.

    13F-HR 0001018331-26-000002 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 470,476 shares
    • NATIXIS: 76 shares

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

  4. period ended2025-09-30
    13F 511,268 shares
    Change vs previous 13F -18,648 shares

    0.05% of the 13F portfolio, value $43,381,140.

    13F-HR 0001018331-25-000009 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 511,066 shares
    • NATIXIS: 202 shares

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

  5. period ended2025-06-30
    13F 529,916 shares
    Change vs previous 13F -9,144 shares

    0.06% of the 13F portfolio, value $47,618,341.

    13F-HR 0001018331-25-000006 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 529,634 shares
    • NATIXIS: 282 shares

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

  6. period ended2025-03-31
    13F/A 539,060 shares
    Change vs previous 13F -25,334 shares

    0.06% of the 13F portfolio, value $41,845,904.

    13F-HR 0001018331-25-000004 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 538,464 shares
    • NATIXIS: 596 shares

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

  7. period ended2024-12-31
    13F 564,394 shares
    Change vs previous 13F -129,165 shares

    0.07% of the 13F portfolio, value $46,550,895.

    13F-HR 0001018331-25-000002 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 548,646 shares
    • NATIXIS: 15,748 shares

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

  8. period ended2024-09-30
    13F 693,559 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $47,987,606.

    13F-HR 0001018331-24-000009 filed by NATIXIS ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • NATIXIS ADVISORS, LLC: 674,270 shares
    • NATIXIS: 19,289 shares

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