Skip to content
Disclosery

CenterBook Partners LP: CSTM position timeline

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

CenterBook Partners LP held 21,756 CSTM 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 21,756 shares
    Change vs previous 13F +9,756 shares

    0.03% of the 13F portfolio, value $693,364.

    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 12,000 shares
    Change vs previous 13F -43,927 shares

    0.02% of the 13F portfolio, value $294,960.

    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 55,927 shares
    Change vs previous 13F -32,927 shares

    0.05% of the 13F portfolio, value $1,054,224.

    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 ended2025-09-30
    13F 88,854 shares
    Change vs previous 13F -4,719 shares

    0.07% of the 13F portfolio, value $1,322,148.

    13F-HR 0000902664-25-004789 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).

  5. period ended2025-06-30
    13F 93,573 shares
    Change vs previous 13F -276,376 shares

    0.07% of the 13F portfolio, value $1,244,521.

    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).

  6. period ended2025-03-31
    13F 369,949 shares
    Change vs previous 13F -340,046 shares

    0.24% of the 13F portfolio, value $3,732,785.

    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).

  7. period ended2024-12-31
    13F 709,995 shares
    Change vs previous 13F +558,820 shares

    0.44% of the 13F portfolio, value $7,291,649.

    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).

  8. period ended2024-09-30
    13F 151,175 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $2,458,106.

    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).