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Disclosery

Main Street Research LLC: PLTR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Main Street Research LLC on PLTR, newest first. How the timeline and the estimate are built.

Main Street Research LLC held 11,444 PLTR shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,444 shares
    Change vs previous 13F -156,203 shares

    0.06% of the 13F portfolio, value $1,335,171.

    13F-HR 0001420506-26-001335 filed by Main Street Research 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 167,647 shares
    Change vs previous 13F -272,603 shares

    1.43% of the 13F portfolio, value $24,523,403.

    13F-HR 0001420506-26-000773 filed by Main Street Research 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 440,250 shares
    Change vs previous 13F -15,243 shares

    4.48% of the 13F portfolio, value $78,254,438.

    13F-HR 0001420506-26-000210 filed by Main Street Research 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 455,493 shares
    Change vs previous 13F -5,939 shares

    4.49% of the 13F portfolio, value $83,091,033.

    13F-HR 0001420506-25-003188 filed by Main Street Research 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 461,432 shares
    Change vs previous 13F -444,201 shares

    3.92% of the 13F portfolio, value $62,902,410.

    13F-HR 0001420506-25-001710 filed by Main Street Research 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 905,633 shares
    Change vs previous 13F +7,913 shares

    4.99% of the 13F portfolio, value $76,435,425.

    13F-HR 0001420506-25-000840 filed by Main Street Research LLC
    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 897,720 shares
    Change vs previous 13F +4,919 shares

    4.23% of the 13F portfolio, value $67,894,564.

    13F-HR 0001420506-25-000201 filed by Main Street Research LLC
    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 892,801 shares
    Change vs previous 13F not available

    2.09% of the 13F portfolio, value $33,212,197.

    13F-HR 0001941040-24-000499 filed by Main Street Research LLC
    Filed (acceptance time not in the bulk data set), ingested

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