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Davidson Kempner Capital Management LP: KOS position timeline

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

Davidson Kempner Capital Management LP held 8,000,323 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 8,000,323 shares
    Change vs previous 13F -419,663 shares

    0.27% of the 13F portfolio, value $16,880,682.

    13F-HR 0001595082-26-000069 filed by Davidson Kempner Capital Management 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/A 8,419,986 shares
    Change vs previous 13F not available

    0.42% of the 13F portfolio, value $23,407,561.

    13F-HR 0001595082-26-000046 filed by Davidson Kempner Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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