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BLAIR WILLIAM & CO/IL: COR position timeline

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

BLAIR WILLIAM & CO/IL held 13,115 COR 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 13,115 shares
    Change vs previous 13F -6,569 shares

    0.01% of the 13F portfolio, value $3,711,305.

    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 19,684 shares
    Change vs previous 13F +48 shares

    0.02% of the 13F portfolio, value $6,183,637.

    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 19,636 shares
    Change vs previous 13F -1,483 shares

    0.02% of the 13F portfolio, value $6,632,065.

    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 21,119 shares
    Change vs previous 13F -2 shares

    0.02% of the 13F portfolio, value $6,600,169.

    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 21,121 shares
    Change vs previous 13F +353 shares

    0.02% of the 13F portfolio, value $6,333,175.

    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 20,768 shares
    Change vs previous 13F -662 shares

    0.02% of the 13F portfolio, value $5,775,290.

    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 21,430 shares
    Change vs previous 13F -1,098 shares

    0.01% of the 13F portfolio, value $4,814,933.

    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 22,528 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $5,070,508.

    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).