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BLAIR WILLIAM & CO/IL: CMS position timeline

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

BLAIR WILLIAM & CO/IL held 11,392 CMS 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 11,392 shares
    Change vs previous 13F +3,266 shares

    <0.01% of the 13F portfolio, value $871,503.

    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 8,126 shares
    Change vs previous 13F +3,711 shares

    <0.01% of the 13F portfolio, value $630,446.

    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 4,415 shares
    Change vs previous 13F -1,183 shares

    <0.01% of the 13F portfolio, value $308,764.

    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 5,598 shares
    Change vs previous 13F +583 shares

    <0.01% of the 13F portfolio, value $410,138.

    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 5,015 shares
    Change vs previous 13F -42 shares

    <0.01% of the 13F portfolio, value $347,457.

    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 5,057 shares
    Change vs previous 13F -547 shares

    <0.01% of the 13F portfolio, value $379,798.

    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 5,604 shares
    Change vs previous 13F -48 shares

    <0.01% of the 13F portfolio, value $373,511.

    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 5,652 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $399,176.

    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).