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Silver Heights Capital Management Inc: IRDM position timeline

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

Silver Heights Capital Management Inc held 3,274,947 IRDM shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 3,274,947 shares
    Change vs previous 13F -1,870,532 shares

    55.43% of the 13F portfolio, value $179,630,843.

    13F-HR 0001705712-26-000013 filed by Silver Heights Capital Management Inc
    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 5,145,479 shares
    Change vs previous 13F -105,654 shares

    54.85% of the 13F portfolio, value $142,735,587.

    13F-HR 0001705712-26-000010 filed by Silver Heights Capital Management Inc
    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 5,251,133 shares
    Change vs previous 13F +61,430 shares

    36.21% of the 13F portfolio, value $91,264,692.

    13F-HR 0001705712-26-000002 filed by Silver Heights Capital Management Inc
    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 5,189,703 shares
    Change vs previous 13F +961,440 shares

    40.63% of the 13F portfolio, value $90,612,214.

    13F-HR 0001705712-25-000014 filed by Silver Heights Capital Management Inc
    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 4,228,263 shares
    Change vs previous 13F +501,400 shares

    48.65% of the 13F portfolio, value $127,566,695.

    13F-HR 0001705712-25-000007 filed by Silver Heights Capital Management Inc
    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 3,726,863 shares
    Change vs previous 13F +11,392 shares

    46.26% of the 13F portfolio, value $101,817,897.

    13F-HR 0001705712-25-000004 filed by Silver Heights Capital Management Inc
    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 3,715,471 shares
    Change vs previous 13F -9,796 shares

    47.95% of the 13F portfolio, value $107,822,968.

    13F-HR 0001705712-25-000002 filed by Silver Heights Capital Management Inc
    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 3,725,267 shares
    Change vs previous 13F not available

    47.44% of the 13F portfolio, value $113,434,380.

    13F-HR 0001705712-24-000009 filed by Silver Heights Capital Management Inc
    Filed (acceptance time not in the bulk data set), ingested

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