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Silphium Asset Management Ltd: COST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Silphium Asset Management Ltd on COST, newest first. How the timeline and the estimate are built.

Silphium Asset Management Ltd held 2,128 COST shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,128 shares
    Change vs previous 13F +220 shares

    0.67% of the 13F portfolio, value $1,990,680.

    13F-HR 0000919574-26-004683 filed by Silphium Asset Management Ltd
    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 1,908 shares
    Change vs previous 13F -360 shares

    0.72% of the 13F portfolio, value $1,901,188.

    13F-HR 0000919574-26-002639 filed by Silphium Asset Management Ltd
    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 2,268 shares
    Change vs previous 13F -3,121 shares

    0.83% of the 13F portfolio, value $1,955,787.

    13F-HR 0000919574-26-000476 filed by Silphium Asset Management Ltd
    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 5,389 shares
    Change vs previous 13F -700 shares

    1.48% of the 13F portfolio, value $4,988,220.

    13F-HR 0000919574-25-006407 filed by Silphium Asset Management Ltd
    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 6,089 shares
    Change vs previous 13F -1,545 shares

    2.15% of the 13F portfolio, value $6,027,745.

    13F-HR 0000919574-25-004495 filed by Silphium Asset Management Ltd
    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 7,634 shares
    Change vs previous 13F +6 shares

    5.82% of the 13F portfolio, value $7,220,085.

    13F-HR 0000919574-25-002661 filed by Silphium Asset Management Ltd
    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 7,628 shares
    Change vs previous 13F +6 shares

    2.55% of the 13F portfolio, value $6,989,308.

    13F-HR 0000919574-25-000828 filed by Silphium Asset Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 7,622 shares
    Change vs previous 13F not available

    2.43% of the 13F portfolio, value $6,757,055.

    13F-HR 0000919574-25-000739 filed by Silphium Asset Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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