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BLAIR WILLIAM & CO/IL: XLK position timeline

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

BLAIR WILLIAM & CO/IL held 137,534 XLK 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 137,534 shares
    Change vs previous 13F -26,122 shares

    0.07% of the 13F portfolio, value $26,202,972.

    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 163,656 shares
    Change vs previous 13F -50,241 shares

    0.06% of the 13F portfolio, value $21,749,893.

    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 213,897 shares
    Change vs previous 13F +109,272 shares

    0.08% of the 13F portfolio, value $30,794,737.

    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 104,625 shares
    Change vs previous 13F +6,510 shares

    0.08% of the 13F portfolio, value $29,489,699.

    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 98,115 shares
    Change vs previous 13F +24,044 shares

    0.07% of the 13F portfolio, value $24,845,722.

    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 74,071 shares
    Change vs previous 13F -4,416 shares

    0.05% of the 13F portfolio, value $15,294,098.

    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 78,487 shares
    Change vs previous 13F -903 shares

    0.05% of the 13F portfolio, value $18,249,796.

    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 79,390 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $17,922,985.

    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).