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BLAIR WILLIAM & CO/IL: RIG position timeline

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

BLAIR WILLIAM & CO/IL held 324,002 RIG 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 324,002 shares
    Change vs previous 13F -14,801 shares

    <0.01% of the 13F portfolio, value $1,584,368.

    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 338,803 shares
    Change vs previous 13F +21,689 shares

    0.01% of the 13F portfolio, value $2,246,262.

    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 317,114 shares
    Change vs previous 13F -1,184 shares

    <0.01% of the 13F portfolio, value $1,309,679.

    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 318,298 shares
    Change vs previous 13F +22,460 shares

    <0.01% of the 13F portfolio, value $993,089.

    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 295,838 shares
    Change vs previous 13F +13,199 shares

    <0.01% of the 13F portfolio, value $766,220.

    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 282,639 shares
    Change vs previous 13F +2,909 shares

    <0.01% of the 13F portfolio, value $895,964.

    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 279,730 shares
    Change vs previous 13F +534 shares

    <0.01% of the 13F portfolio, value $1,048,986.

    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 279,196 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,186,584.

    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).