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LOOMIS SAYLES & CO L P: SEIC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of LOOMIS SAYLES & CO L P on SEIC, newest first. How the timeline and the estimate are built.

LOOMIS SAYLES & CO L P held 8,482,052 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 8,482,052 shares
    Change vs previous 13F -146,827 shares

    0.93% of the 13F portfolio, value $743,960,791.

    13F-HR 0000312348-26-000034 filed by LOOMIS SAYLES & CO L P
    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 8,628,879 shares
    Change vs previous 13F -115,755 shares

    0.91% of the 13F portfolio, value $677,108,102.

    13F-HR 0000312348-26-000026 filed by LOOMIS SAYLES & CO L P
    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 8,744,634 shares
    Change vs previous 13F -231,415 shares

    0.86% of the 13F portfolio, value $717,234,871.

    13F-HR 0000312348-26-000014 filed by LOOMIS SAYLES & CO L P
    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 8,976,049 shares
    Change vs previous 13F +134,800 shares

    0.91% of the 13F portfolio, value $761,617,768.

    13F-HR 0000312348-25-000035 filed by LOOMIS SAYLES & CO L P
    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 8,841,249 shares
    Change vs previous 13F +121,198 shares

    1% of the 13F portfolio, value $794,474,637.

    13F-HR 0000312348-25-000028 filed by LOOMIS SAYLES & CO L P
    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 8,720,051 shares
    Change vs previous 13F -117,256 shares

    0.98% of the 13F portfolio, value $676,938,000.

    13F-HR 0000312348-25-000021 filed by LOOMIS SAYLES & CO L P
    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 8,837,307 shares
    Change vs previous 13F -310,622 shares

    0.92% of the 13F portfolio, value $728,902,000.

    13F-HR 0000312348-25-000014 filed by LOOMIS SAYLES & CO L P
    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 9,147,929 shares
    Change vs previous 13F not available

    0.83% of the 13F portfolio, value $632,945,000.

    13F-HR 0000312348-24-000037 filed by LOOMIS SAYLES & CO L P
    Filed (acceptance time not in the bulk data set), ingested

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