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Disclosery

Rock Springs Capital Management LP: CMPX position timeline

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

Rock Springs Capital Management LP held 3,524,929 CMPX 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 3,524,929 shares
    Change vs previous 13F +219,621 shares

    0.38% of the 13F portfolio, value $7,719,595.

    13F-HR 0001172661-26-003527 filed by Rock Springs Capital Management LP
    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 3,305,308 shares
    Change vs previous 13F -621,894 shares

    1.03% of the 13F portfolio, value $17,485,079.

    13F-HR 0001172661-26-002225 filed by Rock Springs 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 ended2025-12-31
    13F 3,927,202 shares
    Change vs previous 13F -547,500 shares

    1.08% of the 13F portfolio, value $21,089,075.

    13F-HR 0001172661-26-000917 filed by Rock Springs 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 ended2025-09-30
    13F 4,474,702 shares
    Change vs previous 13F -488,253 shares

    0.92% of the 13F portfolio, value $15,661,457.

    13F-HR 0001172661-25-004882 filed by Rock Springs Capital Management LP
    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 4,962,955 shares
    Change vs previous 13F 0 shares

    0.8% of the 13F portfolio, value $12,903,683.

    13F-HR 0001172661-25-003273 filed by Rock Springs 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 ended2025-03-31
    13F 4,962,955 shares
    Change vs previous 13F -816,620 shares

    0.54% of the 13F portfolio, value $9,429,615.

    13F-HR 0001172661-25-001953 filed by Rock Springs Capital Management LP
    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 5,779,575 shares
    Change vs previous 13F +150,336 shares

    0.32% of the 13F portfolio, value $8,380,384.

    13F-HR 0001172661-25-000867 filed by Rock Springs Capital Management LP
    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 5,629,239 shares
    Change vs previous 13F not available

    0.34% of the 13F portfolio, value $10,357,800.

    13F-HR 0001172661-24-004721 filed by Rock Springs Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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