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LOOMIS SAYLES & CO L P: BLK position timeline

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

LOOMIS SAYLES & CO L P held 198,459 BLK 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 198,459 shares
    Change vs previous 13F -11,095 shares

    0.24% of the 13F portfolio, value $190,830,236.

    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 209,554 shares
    Change vs previous 13F -64,943 shares

    0.27% of the 13F portfolio, value $201,530,177.

    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 274,497 shares
    Change vs previous 13F -12,157 shares

    0.35% of the 13F portfolio, value $293,805,119.

    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 286,654 shares
    Change vs previous 13F +29,236 shares

    0.4% of the 13F portfolio, value $334,201,299.

    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 257,418 shares
    Change vs previous 13F +36,463 shares

    0.34% of the 13F portfolio, value $270,095,836.

    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 220,955 shares
    Change vs previous 13F -72,893 shares

    0.3% of the 13F portfolio, value $209,129,000.

    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 293,848 shares
    Change vs previous 13F not available

    0.38% of the 13F portfolio, value $301,226,000.

    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).