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Disclosery

BLAIR WILLIAM & CO/IL: MRSH position timeline

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

BLAIR WILLIAM & CO/IL held 41,504 MRSH 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 41,504 shares
    Change vs previous 13F +862 shares

    0.02% of the 13F portfolio, value $7,255,803.

    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 40,642 shares
    Change vs previous 13F +4,913 shares

    0.02% of the 13F portfolio, value $7,425,366.

    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 35,729 shares
    Change vs previous 13F -10,870 shares

    0.02% of the 13F portfolio, value $6,628,446.

    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 46,599 shares
    Change vs previous 13F -4,742 shares

    0.02% of the 13F portfolio, value $9,391,139.

    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 51,341 shares
    Change vs previous 13F +6,580 shares

    0.03% of the 13F portfolio, value $11,225,087.

    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 44,761 shares
    Change vs previous 13F +1,998 shares

    0.03% of the 13F portfolio, value $10,923,004.

    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 42,763 shares
    Change vs previous 13F +1,974 shares

    0.03% of the 13F portfolio, value $9,083,215.

    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 40,789 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $9,099,721.

    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).