Skip to content
Disclosery

WELLINGTON MANAGEMENT GROUP LLP: MNTN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WELLINGTON MANAGEMENT GROUP LLP on MNTN, newest first. How the timeline and the estimate are built.

WELLINGTON MANAGEMENT GROUP LLP held 5,630,486 MNTN 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 5,630,486 shares
    Change vs previous 13F -578,702 shares

    0.01% of the 13F portfolio, value $51,800,471.

    13F-HR 0000902219-26-000311 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 6,209,188 shares
    Change vs previous 13F +478,465 shares

    0.01% of the 13F portfolio, value $54,640,854.

    13F-HR 0000902219-26-000209 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 5,730,723 shares
    Change vs previous 13F +385,421 shares

    0.01% of the 13F portfolio, value $68,424,833.

    13F-HR 0000902219-26-000103 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 5,345,302 shares
    Change vs previous 13F +2,159,075 shares

    0.02% of the 13F portfolio, value $99,155,352.

    13F-HR 0000902219-25-000462 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 3,186,227 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $69,682,784.

    13F-HR 0000902219-25-000356 filed by WELLINGTON MANAGEMENT GROUP LLP
    Filed (acceptance time not in the bulk data set), ingested

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