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MASON STREET ADVISORS, LLC: RSP position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MASON STREET ADVISORS, LLC on RSP, newest first. How the timeline and the estimate are built.

MASON STREET ADVISORS, LLC held 288,645 RSP shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 288,645 shares
    Change vs previous 13F +20,825 shares

    5.53% of the 13F portfolio, value $61,414,997.

    13F-HR 0001167711-26-000005 filed by MASON STREET ADVISORS, LLC
    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 267,820 shares
    Change vs previous 13F +8,390 shares

    5.02% of the 13F portfolio, value $51,400,014.

    13F-HR 0001167711-26-000004 filed by MASON STREET ADVISORS, LLC
    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 259,430 shares
    Change vs previous 13F +106,820 shares

    4.89% of the 13F portfolio, value $49,696,411.

    13F-HR 0001167711-26-000001 filed by MASON STREET ADVISORS, LLC
    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 152,610 shares
    Change vs previous 13F +19,510 shares

    3% of the 13F portfolio, value $28,950,117.

    13F-HR 0001167711-25-000006 filed by MASON STREET ADVISORS, LLC
    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 133,100 shares
    Change vs previous 13F 0 shares

    2.83% of the 13F portfolio, value $24,189,594.

    13F-HR 0001085146-25-004732 filed by MASON STREET ADVISORS, LLC
    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 133,100 shares
    Change vs previous 13F not available

    2.93% of the 13F portfolio, value $23,056,913.

    13F-HR 0001085146-25-003071 filed by MASON STREET ADVISORS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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