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

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

D. E. Shaw & Co., Inc. held 24,538,308 KOS 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 24,538,308 shares
    Change vs previous 13F +4,152,563 shares

    0.03% of the 13F portfolio, value $51,775,830.

    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 20,385,745 shares
    Change vs previous 13F +20,370,745 shares

    0.04% of the 13F portfolio, value $56,672,372.

    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 ended2024-09-30
    13F 15,000 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $60,450.

    13F-HR 0001104659-24-119021 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).