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Greenstone Partners & Co., LLC: SGI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Greenstone Partners & Co., LLC on SGI, newest first. How the timeline and the estimate are built.

Greenstone Partners & Co., LLC held 568,634 SGI shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 568,634 shares
    Change vs previous 13F +280 shares

    10.31% of the 13F portfolio, value $44,580,906.

    13F-HR 0001420506-26-001719 filed by Greenstone Partners & Co., 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 568,354 shares
    Change vs previous 13F +42,580 shares

    10.63% of the 13F portfolio, value $42,012,728.

    13F-HR 0001420506-26-000995 filed by Greenstone Partners & Co., 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 525,774 shares
    Change vs previous 13F +253,757 shares

    9.12% of the 13F portfolio, value $46,941,103.

    13F-HR 0001941040-26-000189 filed by Greenstone Partners & Co., 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 272,017 shares
    Change vs previous 13F not available

    4.19% of the 13F portfolio, value $22,939,194.

    13F-HR 0001420506-26-000618 filed by Greenstone Partners & Co., LLC
    Filed (acceptance time not in the bulk data set), ingested

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