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Disclosery

CenterBook Partners LP: AMBP position timeline

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

CenterBook Partners LP held 0 AMBP shares at 2025-06-30 per its 13F-HR filed 2025-08-12.

the latest 13F is the newest step

  1. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -1,426,004 shares

    13F-HR 0000902664-25-003518 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).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-03-31
    13F 1,426,004 shares
    Change vs previous 13F -944,726 shares

    0.27% of the 13F portfolio, value $4,306,532.

    13F-HR 0000902664-25-002221 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).

  3. period ended2024-12-31
    13F 2,370,730 shares
    Change vs previous 13F +1,462,548 shares

    0.43% of the 13F portfolio, value $7,135,897.

    13F-HR 0000902664-25-000921 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).

  4. period ended2024-09-30
    13F 908,182 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $3,423,846.

    13F-HR 0000902664-24-006587 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).