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BLAIR WILLIAM & CO/IL: MAR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on MAR, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 38,225 MAR shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 38,225 shares
    Change vs previous 13F +5,190 shares

    0.04% of the 13F portfolio, value $14,165,710.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 33,035 shares
    Change vs previous 13F +80 shares

    0.03% of the 13F portfolio, value $10,804,680.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 32,955 shares
    Change vs previous 13F -1,558 shares

    0.03% of the 13F portfolio, value $10,223,839.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 34,513 shares
    Change vs previous 13F +71 shares

    0.02% of the 13F portfolio, value $8,988,537.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 34,442 shares
    Change vs previous 13F +1,711 shares

    0.03% of the 13F portfolio, value $9,409,956.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 32,731 shares
    Change vs previous 13F -2,588 shares

    0.02% of the 13F portfolio, value $7,796,418.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 35,319 shares
    Change vs previous 13F +198 shares

    0.03% of the 13F portfolio, value $9,851,834.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 35,121 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $8,731,151.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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