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BLAIR WILLIAM & CO/IL: VRTX position timeline

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

BLAIR WILLIAM & CO/IL held 18,400 VRTX 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 18,400 shares
    Change vs previous 13F +1,859 shares

    0.02% of the 13F portfolio, value $9,139,600.

    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 16,541 shares
    Change vs previous 13F +451 shares

    0.02% of the 13F portfolio, value $7,386,220.

    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 16,090 shares
    Change vs previous 13F -1,900 shares

    0.02% of the 13F portfolio, value $7,294,448.

    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 17,990 shares
    Change vs previous 13F -8,087 shares

    0.02% of the 13F portfolio, value $7,045,795.

    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 26,077 shares
    Change vs previous 13F -768 shares

    0.03% of the 13F portfolio, value $11,609,666.

    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 26,845 shares
    Change vs previous 13F +201 shares

    0.04% of the 13F portfolio, value $13,015,196.

    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 26,644 shares
    Change vs previous 13F -64,672 shares

    0.03% of the 13F portfolio, value $10,729,707.

    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 91,316 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $42,469,472.

    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).