Mereo BioPharma Group plc - MREO

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
May 15, 2026 SCHEDULE 13G/A EcoR1 Capital, LLC 8.4% 66,844,275 View
May 15, 2026 SCHEDULE 13G/A Oleg Nodelman 8.4% 66,844,275 View
May 15, 2026 SCHEDULE 13G/A EcoR1 Capital Fund Qualified, L.P. 7.8% 62,644,610 View
Feb 17, 2026 SCHEDULE 13G/A Northpond Ventures, LP 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A Northpond Ventures GP, LLC 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A Northpond Ventures II, LP 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A Northpond Ventures II GP, LLC 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A NPV Listed, LLC 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A Northpond Ventures, LLC 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A Michael P. Rubin 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A JANUS HENDERSON GROUP PLC 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A Frazier Life Sciences Public Fund, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLSP, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLSP, L.L.C. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A Frazier Life Sciences X, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLS X, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLS X, L.L.C. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A Frazier Life Sciences XI, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLS XI, L.P. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A FHMLS XI, L.L.C. 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A James N. Topper 0.0% 0 View
Feb 13, 2026 SCHEDULE 13G/A Patrick J. Heron 0.0% 0 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.