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Disclosery

Rock Springs Capital Management LP: MREO position timeline

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

Rock Springs Capital Management LP held 0 MREO shares at 2025-12-31 per its 13F-HR filed 2026-02-17.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -4,570,649 shares

    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).

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

  2. period ended2025-09-30
    13F 4,570,649 shares
    Change vs previous 13F +105,357 shares

    0.55% of the 13F portfolio, value $9,415,537.

    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).

  3. period ended2025-06-30
    13F 4,465,292 shares
    Change vs previous 13F -2,218,955 shares

    0.75% of the 13F portfolio, value $12,100,941.

    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).

  4. period ended2025-03-31
    13F 6,684,247 shares
    Change vs previous 13F -2,914,923 shares

    0.86% of the 13F portfolio, value $15,039,556.

    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).

  5. period ended2024-12-31
    13F 9,599,170 shares
    Change vs previous 13F +65,000 shares

    1.28% of the 13F portfolio, value $33,597,095.

    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).

  6. period ended2024-09-30
    13F 9,534,170 shares
    Change vs previous 13F not available

    1.27% of the 13F portfolio, value $39,185,439.

    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).