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CenterBook Partners LP: ARHS position timeline

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

CenterBook Partners LP held 1,118,395 ARHS 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 1,118,395 shares
    Change vs previous 13F -831,827 shares

    0.46% of the 13F portfolio, value $9,416,886.

    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 1,950,222 shares
    Change vs previous 13F +1,265,926 shares

    0.71% of the 13F portfolio, value $13,222,505.

    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 684,296 shares
    Change vs previous 13F -372,071 shares

    0.37% of the 13F portfolio, value $7,670,958.

    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 1,056,367 shares
    Change vs previous 13F +713,324 shares

    0.55% of the 13F portfolio, value $11,229,181.

    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 343,043 shares
    Change vs previous 13F -1,548,414 shares

    0.17% of the 13F portfolio, value $2,974,183.

    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 1,891,457 shares
    Change vs previous 13F +1,122,004 shares

    1.05% of the 13F portfolio, value $16,455,676.

    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 769,453 shares
    Change vs previous 13F +255,065 shares

    0.43% of the 13F portfolio, value $7,232,858.

    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 514,388 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $6,332,116.

    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).