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Disclosery

Camber Capital Management LP: IONS position timeline

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

Camber Capital Management LP held 0 IONS shares at 2025-06-30 per its 13F-HR filed 2025-08-14.

the latest 13F is the newest step

  1. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -725,000 shares

    13F-HR 0001654954-25-009644 filed by Camber Capital Management LP
    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 ended2025-03-31
    13F 725,000 shares
    Change vs previous 13F +100,000 shares

    1.36% of the 13F portfolio, value $21,873,250.

    13F-HR 0001654954-25-005756 filed by Camber Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2024-12-31
    13F 625,000 shares
    Change vs previous 13F +625,000 shares

    0.85% of the 13F portfolio, value $21,850,000.

    13F-HR 0001654954-25-001508 filed by Camber Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-03-31
    13F 0 shares
    Change vs previous 13F -865,000 shares

    13F-HR 0001654954-24-006308 filed by Camber Capital Management LP
    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.

  5. period ended2023-12-31
    13F 865,000 shares
    Change vs previous 13F -1,385,000 shares

    1.53% of the 13F portfolio, value $43,760,000.

    13F-HR 0001654954-24-001698 filed by Camber Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2023-09-30
    13F 2,250,000 shares
    Change vs previous 13F not available

    3.66% of the 13F portfolio, value $102,060,000.

    13F-HR 0001654954-23-014248 filed by Camber Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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