Mereo BioPharma Group plc
MREO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001719714
No open-market purchases or sales by Mereo BioPharma Group plc insiders were filed in the last 90 days; 60 institutions reported holding it in 13F filings for Q2 2026, worth $18.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −3 vs. previous quarter
- 60
- 13F valueReported value at the end of Q2 2026
- $18.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding MREO, Q2 2026
No superinvestor reported holding MREO at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Mereo BioPharma Group plc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 16, 2024 (view filing) | Sep 12-13 | 4 days | Scots-Knight DeniseChief Executive Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −88.7K | $4.30 | −$381.3K | −9.9%808.9K after | 2 lots |
| Sep 16, 2024 (view filing) | Sep 12-13 | 4 days | Lewicki John A.Chief Scientific Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −16.1K | $4.30 | −$69.5K | −17.0%78.6K after | 2 lots |
| Sep 16, 2024 (view filing) | Sep 12-13 | 4 days | Sermon CharlesGeneral Counsel | SSaleAmerican Depositary Shares representing Ordinary Shares | −30.9K | $4.30 | −$133.0K | −12.4%219.1K after | 2 lots |
| Sep 16, 2024 (view filing) | Sep 12-13 | 4 days | Fox Christine AnnChief Financial Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −28.3K | $4.30 | −$121.6K | −24.1%89.3K after | 2 lots |
| Sep 16, 2024 (view filing) | Sep 12-13 | 4 days | Hughes-Wilson AlexandraSee Remarks | SSaleAmerican Depositary Shares representing Ordinary Shares | −148.1K | $4.30 | −$637.0K | −74.6%50.5K after | 4 lots |
| Aug 23, 2024 (view filing) | Aug 22 | 1 day | Pakianathan DeepikaDirector | SSaleAmerican Depositary Shares representing Ordinary Shares | −105.2K | $4.43 | −$466.2K | −100.0%0 after | |
| Jun 27, 2024 (view filing) | Jun 25-26 | 2 days | Sermon CharlesGeneral Counsel | SSaleAmerican Depositary Shares representing Ordinary Shares | −46.4K | $3.48 | −$161.5K | −20.1%184.4K after | 2 lots |
| Jun 27, 2024 (view filing) | Jun 25-26 | 2 days | Lewicki John A.Chief Scientific Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −24.2K | $3.48 | −$84.3K | −33.2%48.8K after | 2 lots |
| Jun 27, 2024 (view filing) | Jun 25-26 | 2 days | Fox Christine AnnChief Financial Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −42.4K | $3.48 | −$147.7K | −42.4%57.6K after | 2 lots |
| Jun 27, 2024 (view filing) | Jun 25-26 | 2 days | Scots-Knight DeniseChief Executive Officer | SSaleAmerican Depositary Shares representing Ordinary Shares | −133.0K | $3.48 | −$463.0K | −15.8%709.5K after | 2 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Mereo BioPharma Group plc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rubric Capital Management LP | 15,307,347 | $4.86M | 0.04% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 11,777,856 | $3.74M | 0.34% | −222,144−1.9% | Reduced |
| Bank of America Corp | 8,195,281 | $2.60M | 0.00% | −60.0% | Reduced |
| Defilade Capital Management, L.P. | 7,558,756 | $2.40M | 0.32% | 00.0% | Unchanged |
| Newtyn Management, LLC | 3,000,000 | $953.1K | 0.12% | −4,079,056−57.6% | Reduced |
| Tejara Capital Ltd | 2,037,520 | $647.3K | 0.27% | 00.0% | Unchanged |
| UBS Group AG | 1,447,627 | $460.3K | 0.00% | −42,501−2.9% | Reduced |
| Two Sigma Investments, LP | 1,319,241 | $419.1K | 0.00% | +1,131,402+602.3% | Added |
| EcoR1 Capital, LLC | 1,000,000 | $317.7K | 0.02% | −12,368,855−92.5% | Reduced |
| Jane Street Group, LLC | 774,944 | $246.2K | 0.00% | +634,971+453.6% | Added |