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CenterBook Partners LP: AEIS position timeline

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

CenterBook Partners LP held 33,252 AEIS 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 33,252 shares
    Change vs previous 13F +32,288 shares

    0.61% of the 13F portfolio, value $12,398,673.

    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 964 shares
    Change vs previous 13F -13,525 shares

    0.02% of the 13F portfolio, value $311,092.

    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 14,489 shares
    Change vs previous 13F -13,283 shares

    0.15% of the 13F portfolio, value $3,033,562.

    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 27,772 shares
    Change vs previous 13F +6,426 shares

    0.23% of the 13F portfolio, value $4,725,128.

    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 21,346 shares
    Change vs previous 13F +9,344 shares

    0.16% of the 13F portfolio, value $2,828,345.

    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 12,002 shares
    Change vs previous 13F +3,490 shares

    0.07% of the 13F portfolio, value $1,143,911.

    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 8,512 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $984,243.

    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).