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Disclosery

BlackRock Inc.: BLDR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BlackRock Inc. on BLDR, newest first. How the timeline and the estimate are built.

BlackRock Inc. held 11,340,555 BLDR shares at 2024-06-30 per its 13F-HR filed 2024-08-13, and reported 12,897,766 shares, 12%, in a 13G/A filed 2026-10-05.

Estimated current stake: 12,897,766 shares, 12% of the class

Estimated from 13G/A of 2026-10-05. As of 2026-09-30, 13G/A 0002012383-26-003316.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2024-06-30.

  1. event date2026-09-30
    13G/A 12,897,766 shares
    Share basis changed not comparable

    12% of the class. Different basis (group aggregate from 13G/A).

    13G/A 0002012383-26-003316 filed by BlackRock, Inc.
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2024-06-30
    13F 11,340,555 shares
    Change vs previous 13F -1,437,097 shares

    0.04% of the 13F portfolio, value $1,569,646,211.

    13F-HR 0001086364-24-008417 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2024-03-31
    13F 12,777,652 shares
    Change vs previous 13F +937,249 shares

    0.06% of the 13F portfolio, value $2,664,779,312.

    13F-HR 0001086364-24-007638 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2023-12-31
    13F 11,840,403 shares
    Change vs previous 13F -4,175,648 shares

    0.05% of the 13F portfolio, value $1,976,636,870.

    13F-HR 0001086364-24-006999 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2023-09-30
    13F 16,016,051 shares
    Change vs previous 13F +984,890 shares

    0.06% of the 13F portfolio, value $1,993,838,184.

    13F-HR 0001306550-23-010335 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2023-06-30
    13F 15,031,161 shares
    Change vs previous 13F +1,320,774 shares

    0.06% of the 13F portfolio, value $2,044,237,890.

    13F-HR 0001306550-23-009732 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2023-03-31
    13F 13,710,387 shares
    Change vs previous 13F -424,416 shares

    0.04% of the 13F portfolio, value $1,217,208,153.

    13F-HR 0001086364-23-000015 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2022-12-31
    13F 14,134,803 shares
    Change vs previous 13F -489,845 shares

    0.03% of the 13F portfolio, value $917,066,016.

    13F-HR 0000913414-23-000035 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  9. period ended2022-09-30
    13F 14,624,648 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $861,684,000.

    13F-HR 0001086364-22-000004 filed by BlackRock Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).