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ARK Investment Management LLC: IONS position timeline

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

ARK Investment Management LLC held 300,770 IONS 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 300,770 shares
    Change vs previous 13F +12,054 shares

    0.15% of the 13F portfolio, value $23,848,064.

    13F-HR 0001104659-26-096910 filed by ARK Investment Management 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 288,716 shares
    Change vs previous 13F -134,252 shares

    0.17% of the 13F portfolio, value $21,679,720.

    13F-HR 0001104659-26-059240 filed by ARK Investment Management 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 422,968 shares
    Change vs previous 13F -208,247 shares

    0.22% of the 13F portfolio, value $33,461,022.

    13F-HR 0001104659-26-013538 filed by ARK Investment Management 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 631,215 shares
    Change vs previous 13F -269,103 shares

    0.25% of the 13F portfolio, value $41,294,081.

    13F-HR 0001104659-25-110217 filed by ARK Investment Management 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 900,318 shares
    Change vs previous 13F -100,209 shares

    0.26% of the 13F portfolio, value $35,571,574.

    13F-HR 0001104659-25-072098 filed by ARK Investment Management 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 1,000,527 shares
    Change vs previous 13F -24,733 shares

    0.3% of the 13F portfolio, value $30,185,886.

    13F-HR 0001104659-25-045396 filed by ARK Investment Management 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 1,025,260 shares
    Change vs previous 13F -359,009 shares

    0.3% of the 13F portfolio, value $35,843,086.

    13F-HR 0001104659-25-009155 filed by ARK Investment Management 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 1,384,269 shares
    Change vs previous 13F not available

    0.51% of the 13F portfolio, value $55,453,818.

    13F-HR 0001104659-24-113006 filed by ARK Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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