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RENAISSANCE TECHNOLOGIES LLC: IONS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RENAISSANCE TECHNOLOGIES LLC on IONS, newest first. How the timeline and the estimate are built.

RENAISSANCE TECHNOLOGIES LLC held 559,414 IONS shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 559,414 shares
    Change vs previous 13F +253,865 shares

    0.06% of the 13F portfolio, value $44,355,936.

    13F-HR 0001037389-26-000059 filed by RENAISSANCE TECHNOLOGIES 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 305,549 shares
    Change vs previous 13F +81,942 shares

    0.04% of the 13F portfolio, value $22,943,674.

    13F-HR 0001037389-26-000033 filed by RENAISSANCE TECHNOLOGIES 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 223,607 shares
    Change vs previous 13F -263,107 shares

    0.03% of the 13F portfolio, value $17,689,550.

    13F-HR 0001037389-26-000023 filed by RENAISSANCE TECHNOLOGIES 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 486,714 shares
    Change vs previous 13F +216,000 shares

    0.04% of the 13F portfolio, value $31,840,830.

    13F-HR 0001037389-25-000064 filed by RENAISSANCE TECHNOLOGIES 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 270,714 shares
    Change vs previous 13F +117,200 shares

    0.01% of the 13F portfolio, value $10,695,910.

    13F-HR 0001037389-25-000034 filed by RENAISSANCE TECHNOLOGIES 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 153,514 shares
    Change vs previous 13F -52,000 shares

    0.01% of the 13F portfolio, value $4,631,517.

    13F-HR 0001037389-25-000023 filed by RENAISSANCE TECHNOLOGIES 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 205,514 shares
    Change vs previous 13F +15,000 shares

    0.01% of the 13F portfolio, value $7,184,769.

    13F-HR 0001037389-25-000009 filed by RENAISSANCE TECHNOLOGIES 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 190,514 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $7,631,991.

    13F-HR 0001037389-24-000091 filed by RENAISSANCE TECHNOLOGIES LLC
    Filed (acceptance time not in the bulk data set), ingested

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