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LOOMIS SAYLES & CO L P: CWST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of LOOMIS SAYLES & CO L P on CWST, newest first. How the timeline and the estimate are built.

LOOMIS SAYLES & CO L P held 573,873 CWST shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 573,873 shares
    Change vs previous 13F -34,781 shares

    0.07% of the 13F portfolio, value $55,648,465.

    13F-HR 0000312348-26-000034 filed by LOOMIS SAYLES & CO L P
    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 608,654 shares
    Change vs previous 13F -42,609 shares

    0.06% of the 13F portfolio, value $48,290,609.

    13F-HR 0000312348-26-000026 filed by LOOMIS SAYLES & CO L P
    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 651,263 shares
    Change vs previous 13F -45,277 shares

    0.08% of the 13F portfolio, value $63,784,698.

    13F-HR 0000312348-26-000014 filed by LOOMIS SAYLES & CO L P
    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 696,540 shares
    Change vs previous 13F -20,016 shares

    0.08% of the 13F portfolio, value $66,087,715.

    13F-HR 0000312348-25-000035 filed by LOOMIS SAYLES & CO L P
    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 716,556 shares
    Change vs previous 13F -136,452 shares

    0.1% of the 13F portfolio, value $82,676,231.

    13F-HR 0000312348-25-000028 filed by LOOMIS SAYLES & CO L P
    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 853,008 shares
    Change vs previous 13F -18,336 shares

    0.14% of the 13F portfolio, value $95,119,000.

    13F-HR 0000312348-25-000021 filed by LOOMIS SAYLES & CO L P
    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 871,344 shares
    Change vs previous 13F +22,368 shares

    0.12% of the 13F portfolio, value $92,197,000.

    13F-HR 0000312348-25-000014 filed by LOOMIS SAYLES & CO L P
    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 848,976 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $84,465,000.

    13F-HR 0000312348-24-000037 filed by LOOMIS SAYLES & CO L P
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).