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DIMENSIONAL FUND ADVISORS LP: IRDM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DIMENSIONAL FUND ADVISORS LP on IRDM, newest first. How the timeline and the estimate are built.

DIMENSIONAL FUND ADVISORS LP held 2,357,845 IRDM shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,357,845 shares
    Change vs previous 13F +198,784 shares

    0.02% of the 13F portfolio, value $129,325,372.

    13F-HR 0000354204-26-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,159,061 shares
    Change vs previous 13F +65,937 shares

    0.01% of the 13F portfolio, value $59,884,289.

    13F-HR 0000354204-26-000581 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,093,124 shares
    Change vs previous 13F -234,271 shares

    0.01% of the 13F portfolio, value $36,379,548.

    13F-HR 0000354204-26-000347 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,327,395 shares
    Change vs previous 13F -228,878 shares

    0.01% of the 13F portfolio, value $40,634,023.

    13F-HR 0000354204-25-001337 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,556,273 shares
    Change vs previous 13F +39,804 shares

    0.02% of the 13F portfolio, value $77,122,899.

    13F-HR 0000354204-25-001097 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,516,469 shares
    Change vs previous 13F +454,403 shares

    0.02% of the 13F portfolio, value $68,749,610.

    13F-HR 0000354204-25-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,062,066 shares
    Change vs previous 13F +149,606 shares

    0.01% of the 13F portfolio, value $59,841,283.

    13F-HR 0000354204-25-000528 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,912,460 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $58,238,269.

    13F-HR 0000354204-24-004773 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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