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Harbor Advisors LLC: IONS position timeline

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

Harbor Advisors LLC held 0 IONS shares at 2025-09-30 per its 13F-HR filed 2025-11-12.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -10,500 shares

    13F-HR 0001214659-25-016246 filed by Harbor Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-06-30
    13F 10,500 shares
    Change vs previous 13F 0 shares

    0.07% of the 13F portfolio, value $414,855.

    13F-HR 0001214659-25-011966 filed by Harbor Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 10,500 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $316,785.

    13F-HR 0001214659-25-007679 filed by Harbor Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-12-31
    13F 10,500 shares
    Change vs previous 13F +5,000 shares

    0.06% of the 13F portfolio, value $367,080.

    13F-HR 0001214659-25-002356 filed by Harbor Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-09-30
    13F 5,500 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $220,330.

    13F-HR 0001214659-24-019061 filed by Harbor Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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