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CenterBook Partners LP: AMN position timeline

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

CenterBook Partners LP held 50,154 AMN 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 50,154 shares
    Change vs previous 13F -465,500 shares

    0.08% of the 13F portfolio, value $1,623,485.

    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 515,654 shares
    Change vs previous 13F +374,740 shares

    0.51% of the 13F portfolio, value $9,457,094.

    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 140,914 shares
    Change vs previous 13F +56,745 shares

    0.11% of the 13F portfolio, value $2,220,805.

    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 84,169 shares
    Change vs previous 13F -555,694 shares

    0.08% of the 13F portfolio, value $1,629,512.

    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 639,863 shares
    Change vs previous 13F +488,029 shares

    0.73% of the 13F portfolio, value $13,225,968.

    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 151,834 shares
    Change vs previous 13F +98,483 shares

    0.24% of the 13F portfolio, value $3,713,860.

    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 53,351 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $1,276,156.

    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).