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Disclosery

CenterBook Partners LP: KOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CenterBook Partners LP on KOS, newest first. How the timeline and the estimate are built.

CenterBook Partners LP held 1,314,526 KOS 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 1,314,526 shares
    Change vs previous 13F +423,052 shares

    0.14% of the 13F portfolio, value $2,773,650.

    13F-HR 0001872738-26-000010 filed by CenterBook Partners LP
    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 891,474 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $2,478,298.

    13F-HR 0001872738-26-000008 filed by CenterBook Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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