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CenterBook Partners LP: GFL position timeline

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

CenterBook Partners LP held 54,336 GFL 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 54,336 shares
    Change vs previous 13F +30,137 shares

    0.1% of the 13F portfolio, value $1,999,021.

    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 24,199 shares
    Change vs previous 13F -13,610 shares

    0.05% of the 13F portfolio, value $1,009,582.

    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 37,809 shares
    Change vs previous 13F +7,706 shares

    0.08% of the 13F portfolio, value $1,623,897.

    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 30,103 shares
    Change vs previous 13F +213 shares

    0.07% of the 13F portfolio, value $1,426,280.

    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 29,890 shares
    Change vs previous 13F +17,696 shares

    0.08% of the 13F portfolio, value $1,508,249.

    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 12,194 shares
    Change vs previous 13F -10,214 shares

    0.04% of the 13F portfolio, value $589,092.

    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 22,408 shares
    Change vs previous 13F -163,507 shares

    0.06% of the 13F portfolio, value $998,052.

    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 185,915 shares
    Change vs previous 13F not available

    0.46% of the 13F portfolio, value $7,414,290.

    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).