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Disclosery

Main Street Research LLC: MSFT position timeline

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

Main Street Research LLC held 69,182 MSFT 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 69,182 shares
    Change vs previous 13F +1,640 shares

    1.22% of the 13F portfolio, value $25,806,278.

    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 67,542 shares
    Change vs previous 13F -100,665 shares

    1.45% of the 13F portfolio, value $25,001,923.

    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 168,207 shares
    Change vs previous 13F +43 shares

    4.65% of the 13F portfolio, value $81,348,219.

    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 168,164 shares
    Change vs previous 13F +73,462 shares

    4.71% of the 13F portfolio, value $87,100,777.

    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 94,702 shares
    Change vs previous 13F -38,919 shares

    2.93% of the 13F portfolio, value $47,105,728.

    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 133,621 shares
    Change vs previous 13F +3,859 shares

    3.28% of the 13F portfolio, value $50,159,911.

    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 129,762 shares
    Change vs previous 13F +4,339 shares

    3.41% of the 13F portfolio, value $54,694,498.

    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 125,423 shares
    Change vs previous 13F not available

    3.4% of the 13F portfolio, value $53,969,467.

    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).