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Disclosery

Main Street Research LLC: LRCX position timeline

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

Main Street Research LLC held 2,016 LRCX 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 2,016 shares
    Change vs previous 13F +28 shares

    0.04% of the 13F portfolio, value $873,695.

    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 1,988 shares
    Change vs previous 13F +464 shares

    0.02% of the 13F portfolio, value $424,784.

    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 1,524 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $261,275.

    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).