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WELLINGTON MANAGEMENT GROUP LLP: CYTK position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 6,931,770 CYTK 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 6,931,770 shares
    Change vs previous 13F -1,077,719 shares

    0.1% of the 13F portfolio, value $590,517,486.

    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 8,009,489 shares
    Change vs previous 13F +72,426 shares

    0.1% of the 13F portfolio, value $527,905,420.

    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 7,937,063 shares
    Change vs previous 13F +528,502 shares

    0.09% of the 13F portfolio, value $504,320,984.

    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 7,408,561 shares
    Change vs previous 13F -419,118 shares

    0.07% of the 13F portfolio, value $407,174,511.

    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 7,827,679 shares
    Change vs previous 13F -161,061 shares

    0.05% of the 13F portfolio, value $258,626,514.

    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).

  6. period ended2025-03-31
    13F 7,988,740 shares
    Change vs previous 13F +100,043 shares

    0.06% of the 13F portfolio, value $321,067,461.

    13F-HR 0000902219-25-000242 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).

  7. period ended2024-12-31
    13F/A 7,888,697 shares
    Change vs previous 13F +113,727 shares

    0.07% of the 13F portfolio, value $371,084,307.

    13F-HR 0000902219-25-000131 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).

  8. period ended2024-09-30
    13F 7,774,970 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $410,518,416.

    13F-HR 0000902219-24-000498 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).