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BLAIR WILLIAM & CO/IL: UNH position timeline

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

BLAIR WILLIAM & CO/IL held 72,052 UNH 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 72,052 shares
    Change vs previous 13F -2,471 shares

    0.08% of the 13F portfolio, value $29,946,822.

    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 74,523 shares
    Change vs previous 13F -28,339 shares

    0.06% of the 13F portfolio, value $20,165,247.

    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 102,862 shares
    Change vs previous 13F -29,276 shares

    0.09% of the 13F portfolio, value $33,955,711.

    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 132,138 shares
    Change vs previous 13F -110,802 shares

    0.12% of the 13F portfolio, value $45,627,085.

    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 242,940 shares
    Change vs previous 13F -95,137 shares

    0.21% of the 13F portfolio, value $75,789,879.

    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 338,077 shares
    Change vs previous 13F -31,832 shares

    0.53% of the 13F portfolio, value $177,067,733.

    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 369,909 shares
    Change vs previous 13F -22,845 shares

    0.54% of the 13F portfolio, value $187,122,033.

    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 392,754 shares
    Change vs previous 13F not available

    0.67% of the 13F portfolio, value $229,635,443.

    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).