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SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC: IONS position timeline

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

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC held 787,263 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 787,263 shares
    Change vs previous 13F -616,770 shares

    1.62% of the 13F portfolio, value $62,422,083.

    13F-HR 0001172661-26-003456 filed by SUMMIT PARTNERS PUBLIC ASSET 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 1,404,033 shares
    Change vs previous 13F -58,673 shares

    4.88% of the 13F portfolio, value $105,428,838.

    13F-HR 0001172661-26-002113 filed by SUMMIT PARTNERS PUBLIC ASSET 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 1,462,706 shares
    Change vs previous 13F +712,706 shares

    3.26% of the 13F portfolio, value $115,714,672.

    13F-HR 0001172661-26-000834 filed by SUMMIT PARTNERS PUBLIC ASSET 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 750,000 shares
    Change vs previous 13F not available

    1.6% of the 13F portfolio, value $49,065,000.

    13F-HR 0001172661-25-004936 filed by SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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