Skip to content
Disclosery

PRIMECAP MANAGEMENT CO/CA/: ILMN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PRIMECAP MANAGEMENT CO/CA/ on ILMN, newest first. How the timeline and the estimate are built.

PRIMECAP MANAGEMENT CO/CA/ held 3,514,649 ILMN 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 3,514,649 shares
    Change vs previous 13F +1,447,350 shares

    0.37% of the 13F portfolio, value $617,980,735.

    13F-HR 0000763212-26-000028 filed by PRIMECAP MANAGEMENT CO/CA/
    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 2,067,299 shares
    Change vs previous 13F +77,620 shares

    0.2% of the 13F portfolio, value $254,815,276.

    13F-HR 0000763212-26-000016 filed by PRIMECAP MANAGEMENT CO/CA/
    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 1,989,679 shares
    Change vs previous 13F +104,400 shares

    0.2% of the 13F portfolio, value $260,966,299.

    13F-HR 0000763212-26-000012 filed by PRIMECAP MANAGEMENT CO/CA/
    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 1,885,279 shares
    Change vs previous 13F -73,220 shares

    0.14% of the 13F portfolio, value $179,044,947.

    13F-HR 0000763212-25-000005 filed by PRIMECAP MANAGEMENT CO/CA/
    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 1,958,499 shares
    Change vs previous 13F -412,450 shares

    0.15% of the 13F portfolio, value $186,860,390.

    13F-HR 0001085146-25-004804 filed by PRIMECAP MANAGEMENT CO/CA/
    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 2,370,949 shares
    Change vs previous 13F -84,870 shares

    0.16% of the 13F portfolio, value $188,111,093.

    13F-HR 0001085146-25-002901 filed by PRIMECAP MANAGEMENT CO/CA/
    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 2,455,819 shares
    Change vs previous 13F -60,540 shares

    0.25% of the 13F portfolio, value $328,171,094.

    13F-HR 0001085146-25-000946 filed by PRIMECAP MANAGEMENT CO/CA/
    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 2,516,359 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $328,158,378.

    13F-HR 0001085146-24-005460 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

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