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

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

D. E. Shaw & Co., Inc. held 392,358 ARCT 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 392,358 shares
    Change vs previous 13F +140,324 shares

    <0.01% of the 13F portfolio, value $2,636,646.

    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 252,034 shares
    Change vs previous 13F +154,211 shares

    <0.01% of the 13F portfolio, value $1,945,702.

    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 97,823 shares
    Change vs previous 13F +37,610 shares

    <0.01% of the 13F portfolio, value $599,655.

    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 60,213 shares
    Change vs previous 13F +49,776 shares

    <0.01% of the 13F portfolio, value $1,109,725.

    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 10,437 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $135,785.

    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).