// company-profile
Mereo BioPharma Group plc
MREOExchangeNasdaqSectorPharmaceutical PreparationsInc.X0Filings65Insiders15
// api This Mereo BioPharma Group plc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for MREO in the last 90 days.
Institutional Ownership
Top 13F-HR holders of Mereo BioPharma Group plc as of 2026-03-31
Total reported AUM
$25.1M
QoQ change
-9.3%
Reporting period
2026-03-31
#1
Rubric Capital Management LP
CIK 1687509
$5.1M
15.3M shares
#2
EcoR1 Capital, LLC
CIK 1587114
$4.4M
13.4M shares
#3
683 Capital Management, LLC
CIK 1404574
$4.0M
12.0M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Feb 26, 2026 | WYZGA MICHAEL S | MREO | Award | 66,000 | $0.00 | $0K |
| Feb 26, 2026 | Jacquet Pierre | MREO | Award | 66,000 | $0.00 | $0K |
| Feb 26, 2026 | PAKIANATHAN DEEPIKA | MREO | Award | 66,000 | $0.00 | $0K |
| Feb 26, 2026 | Bender Jeremy | MREO | Award | 66,000 | $0.00 | $0K |
| Feb 26, 2026 | Shames Daniel | MREO | Award | 96,163 | — | — |
45 more transactions hidden
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