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Mainstream Capital Management LLC: GS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mainstream Capital Management LLC on GS, newest first. How the timeline and the estimate are built.

Mainstream Capital Management LLC held 1,890 GS shares at 2026-06-30 per its 13F-HR filed 2026-07-15.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,890 shares
    Change vs previous 13F -7 shares

    1.15% of the 13F portfolio, value $1,911,489.

    13F-HR 0002043084-26-000003 filed by Mainstream Capital Management 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 1,897 shares
    Change vs previous 13F +390 shares

    1.08% of the 13F portfolio, value $1,604,843.

    13F-HR 0002043084-26-000002 filed by Mainstream Capital Management 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 1,507 shares
    Change vs previous 13F -72 shares

    0.87% of the 13F portfolio, value $1,324,653.

    13F-HR 0002043084-26-000001 filed by Mainstream Capital Management 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 1,579 shares
    Change vs previous 13F 0 shares

    0.84% of the 13F portfolio, value $1,257,437.

    13F-HR 0002043084-25-000006 filed by Mainstream Capital Management 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 1,579 shares
    Change vs previous 13F 0 shares

    0.81% of the 13F portfolio, value $1,117,537.

    13F-HR 0002043084-25-000004 filed by Mainstream Capital Management 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 1,579 shares
    Change vs previous 13F -6 shares

    0.68% of the 13F portfolio, value $862,592.

    13F-HR 0002043084-25-000002 filed by Mainstream Capital Management 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 1,585 shares
    Change vs previous 13F 0 shares

    0.64% of the 13F portfolio, value $907,603.

    13F-HR 0002043084-25-000001 filed by Mainstream Capital Management 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 1,585 shares
    Change vs previous 13F not available

    0.67% of the 13F portfolio, value $784,749.

    13F-HR 0002043084-24-000002 filed by Mainstream Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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