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Disclosery

BLAIR WILLIAM & CO/IL: WAB position timeline

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

BLAIR WILLIAM & CO/IL held 268,737 WAB 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 268,737 shares
    Change vs previous 13F -15,122 shares

    0.19% of the 13F portfolio, value $72,451,473.

    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 283,859 shares
    Change vs previous 13F -11,092 shares

    0.2% of the 13F portfolio, value $70,939,104.

    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 294,951 shares
    Change vs previous 13F -17,286 shares

    0.17% of the 13F portfolio, value $62,957,206.

    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 312,237 shares
    Change vs previous 13F -40,108 shares

    0.17% of the 13F portfolio, value $62,594,177.

    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 352,345 shares
    Change vs previous 13F -20,293 shares

    0.2% of the 13F portfolio, value $73,763,514.

    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 372,638 shares
    Change vs previous 13F -31,280 shares

    0.2% of the 13F portfolio, value $67,577,990.

    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 403,918 shares
    Change vs previous 13F -27,518 shares

    0.22% of the 13F portfolio, value $76,578,743.

    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 431,436 shares
    Change vs previous 13F not available

    0.23% of the 13F portfolio, value $78,422,087.

    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).