Skip to content
Disclosery

CenterBook Partners LP: EXTR position timeline

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

CenterBook Partners LP held 101,937 EXTR 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 101,937 shares
    Change vs previous 13F -17,299 shares

    0.16% of the 13F portfolio, value $3,299,701.

    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 119,236 shares
    Change vs previous 13F -307,158 shares

    0.1% of the 13F portfolio, value $1,798,079.

    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 426,394 shares
    Change vs previous 13F +313,595 shares

    0.35% of the 13F portfolio, value $7,099,460.

    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 112,799 shares
    Change vs previous 13F -111,232 shares

    0.12% of the 13F portfolio, value $2,329,299.

    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 224,031 shares
    Change vs previous 13F +164,975 shares

    0.22% of the 13F portfolio, value $4,021,356.

    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 59,056 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $781,311.

    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).