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Disclosery

D. E. Shaw & Co., Inc.: RBRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of D. E. Shaw & Co., Inc. on RBRK, newest first. How the timeline and the estimate are built.

D. E. Shaw & Co., Inc. held 33,464 RBRK shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 33,464 shares
    Change vs previous 13F -277 shares

    <0.01% of the 13F portfolio, value $2,686,490.

    13F-HR 0001104659-26-097217 filed by D. E. Shaw & Co., Inc.
    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 33,741 shares
    Change vs previous 13F -871,799 shares

    <0.01% of the 13F portfolio, value $1,652,296.

    13F-HR 0001104659-26-062472 filed by D. E. Shaw & Co., Inc.
    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 905,540 shares
    Change vs previous 13F -186,553 shares

    0.05% of the 13F portfolio, value $69,255,699.

    13F-HR 0001104659-26-016332 filed by D. E. Shaw & Co., Inc.
    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 1,092,093 shares
    Change vs previous 13F -3,230,849 shares

    0.07% of the 13F portfolio, value $89,824,649.

    13F-HR 0001104659-25-112505 filed by D. E. Shaw & Co., Inc.
    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 4,322,942 shares
    Change vs previous 13F +2,014,750 shares

    0.39% of the 13F portfolio, value $387,292,374.

    13F-HR 0001104659-25-078542 filed by D. E. Shaw & Co., Inc.
    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 2,308,192 shares
    Change vs previous 13F +884,270 shares

    0.17% of the 13F portfolio, value $140,753,548.

    13F-HR 0001104659-25-049422 filed by D. E. Shaw & Co., Inc.
    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 1,423,922 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $93,067,541.

    13F-HR 0001104659-25-014028 filed by D. E. Shaw & Co., Inc.
    Filed (acceptance time not in the bulk data set), ingested

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