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WELLINGTON MANAGEMENT GROUP LLP: SNDK position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 1,066,886 SNDK 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 1,066,886 shares
    Change vs previous 13F +443,714 shares

    0.42% of the 13F portfolio, value $2,425,810,702.

    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 623,172 shares
    Change vs previous 13F +519,584 shares

    0.07% of the 13F portfolio, value $395,926,099.

    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 103,588 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $24,589,720.

    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).