Skip to content
Disclosery

CenterBook Partners LP: ACM position timeline

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

CenterBook Partners LP held 21,550 ACM 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 21,550 shares
    Change vs previous 13F +7,153 shares

    0.07% of the 13F portfolio, value $1,504,190.

    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 14,397 shares
    Change vs previous 13F -17,908 shares

    0.07% of the 13F portfolio, value $1,221,154.

    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).

  3. period ended2025-12-31
    13F 32,305 shares
    Change vs previous 13F +32,305 shares

    0.15% of the 13F portfolio, value $3,079,636.

    13F-HR 0000902664-26-000841 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 0 shares
    Change vs previous 13F not available

    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).

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