MANGROVE PARTNERS IM, LLC - 30 Sep 2025 SCHEDULE 13G/A Report for Mereo BioPharma Group plc American Depositary Shares, each representing five ordinary shares, nominal value of (pound)0.003 per share (MREO)

Filing Manager
MANGROVE PARTNERS IM, LLC
Reporting Manager
Mangrove Partners IM, LLC
Security
Mereo BioPharma Group plc American Depositary Shares, each representing five ordinary shares, nominal value of (pound)0.003 per share
Symbol
MREO
Shares outstanding
794,957,143 shares
Disclosed Ownership
38,952,900 shares
Ownership
4.9%
Form type
SCHEDULE 13G/A
Filing time
14 Nov 2025, 09:16:26 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

Quoteable Key Fact

"MANGROVE PARTNERS IM, LLC disclosed 4.9% ownership in Mereo BioPharma Group plc American Depositary Shares, each representing five ordinary shares, nominal value of (pound)0.003 per share (MREO) on 30 Sep 2025."

Quick Takeaways

  • MANGROVE PARTNERS IM, LLC filed SCHEDULE 13G/A for Mereo BioPharma Group plc American Depositary Shares, each representing five ordinary shares, nominal value of (pound)0.003 per share (MREO).
  • Disclosed ownership: 4.9%.
  • Date of event: 30 Sep 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 09:16.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Mangrove Partners IM, LLC 4.9% 38,952,900 0 38,952,900 Nathaniel August Nathaniel August, President
Nathaniel August 4.9% 38,952,900 0 38,952,900 Nathaniel August Nathaniel August
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