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BLAIR WILLIAM & CO/IL: EFX position timeline

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

BLAIR WILLIAM & CO/IL held 68,080 EFX 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 68,080 shares
    Change vs previous 13F +1,016 shares

    0.03% of the 13F portfolio, value $10,805,701.

    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 67,064 shares
    Change vs previous 13F -10,194 shares

    0.03% of the 13F portfolio, value $12,076,242.

    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 77,258 shares
    Change vs previous 13F -7,110 shares

    0.04% of the 13F portfolio, value $16,763,481.

    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 84,368 shares
    Change vs previous 13F +3,643 shares

    0.06% of the 13F portfolio, value $21,642,979.

    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 80,725 shares
    Change vs previous 13F +22,724 shares

    0.06% of the 13F portfolio, value $20,937,557.

    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 58,001 shares
    Change vs previous 13F -1,373 shares

    0.04% of the 13F portfolio, value $14,126,724.

    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 59,374 shares
    Change vs previous 13F -184 shares

    0.04% of the 13F portfolio, value $15,131,540.

    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 59,558 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $17,501,569.

    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).