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.
13F holders, Q3 2023
Institutional positions in Mereo BioPharma Group plc as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 56
- +4 vs. Q2 2023
- Shares held
- 70.5M
- +7.56M (+12.0%) vs. Q2 2023
- Total value
- $90.4M
- +$8.17M (+9.9%) vs. Q2 2023
- New holders
- 10
- 13 more added
- Sold out
- 6
- 15 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MREO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 60 | $18.0M |
| Q1 2026 | 63 | $24.9M |
| Q4 2025 | 70 | $25.8M |
| Q3 2025 | 84 | $206.7M |
| Q2 2025 | 86 | $267.8M |
| Q1 2025 | 90 | $250.3M |
| Q4 2024 | 91 | $403.1M |
| Q3 2024 | 77 | $434.8M |
| Q2 2024 | 79 | $361.9M |
| Q1 2024 | 80 | $277.3M |
| Q4 2023 | 64 | $181.4M |
| Q3 2023 | 56 | $90.4M |
| Q2 2023 | 53 | $84.3M |
| Q1 2023 | 58 | $43.0M |
| Q4 2022 | 61 | $46.2M |
| Q3 2022 | 63 | $58.5M |
| Q2 2022 | 64 | $82.7M |
| Q1 2022 | 60 | $99.9M |
| Q4 2021 | 73 | $145.7M |
| Q3 2021 | 63 | $212.2M |
| Q2 2021 | 72 | $284.4M |
| Q1 2021 | 67 | $304.5M |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding Mereo BioPharma Group plc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rubric Capital Management LP | 11,616,120 | $15.0M | 0.63% | 00.0% | Unchanged |
| Soleus Capital Management, L.P. | 9,677,419 | $12.5M | 1.26% | +9,677,419 | New |
| Rock Springs Capital Management LP | 7,676,481 | $9.90M | 0.27% | +634,090+9.0% | Added |
| Suvretta Capital Management, LLC | 7,364,438 | $9.50M | 0.51% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 6,000,000 | $7.74M | 0.78% | +600,000+11.1% | Added |
| Mangrove Partners | 5,531,547 | $7.14M | 0.73% | 00.0% | Unchanged |
| Alkeon Capital Management LLC | 3,738,100 | $4.82M | 0.03% | 00.0% | Unchanged |
| Tejara Capital Ltd | 3,215,001 | $4.15M | 2.36% | +177,030+5.8% | Added |
| Clearline Capital LP | 3,102,723 | $4.00M | 0.40% | +1,157,683+59.5% | Added |
| Citadel Advisors LLC | 2,242,425 | $2.89M | 0.00% | +473,982+26.8% | Added |
| Goldman Sachs Group Inc | 2,023,672 | $2.61M | 0.00% | +41,266+2.1% | Added |
| Renaissance Technologies LLC | 1,727,570 | $2.23M | 0.00% | −51,202−2.9% | Reduced |
| Millennium Management LLC | 1,243,585 | $1.60M | 0.00% | +288,514+30.2% | Added |
| DAFNA Capital Management LLC | 962,513 | $1.24M | 0.39% | −46,500−4.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 800,000 | $1.03M | 0.00% | +800,000 | New |
| Monaco Asset Management SAM | 595,729 | $768.5K | 0.38% | −110,000−15.6% | Reduced |
| J. Goldman & Co LP | 445,485 | $574.7K | 0.03% | +94,500+26.9% | Added |
| Toroso Investments, LLC | 331,914 | $428.2K | 0.01% | 00.0% | Unchanged |
| Formidable Asset Management, LLC | 331,914 | $428.2K | 0.09% | +331,914 | New |
| Ikarian Capital, LLC | 591,676 | $191.3K | 0.07% | −300,000−33.6% | Reduced |
| Two Sigma Investments, LP | 142,602 | $184.0K | 0.00% | −55,157−27.9% | Reduced |
| JPMorgan Chase & Co | 132,801 | $171.3K | 0.00% | −171,230−56.3% | Reduced |
| Schonfeld Strategic Advisors LLC | 130,600 | $168.5K | 0.00% | +100+0.1% | Added |
| Boothbay Fund Management, LLC | 120,584 | $155.6K | 0.01% | −61,140−33.6% | Reduced |
| Susquehanna International Group, LLP | 103,270 | $133.2K | 0.00% | +103,270 | New |
| Geode Capital Management, LLC | 96,630 | $124.7K | 0.00% | 00.0% | Unchanged |
| Primecap Management Co | 79,000 | $101.9K | 0.00% | −78,700−49.9% | Reduced |
| Forefront Analytics, LLC | 65,649 | $84.7K | 0.05% | −17,100−20.7% | Reduced |
| Clear Harbor Asset Management, LLC | 63,754 | $82.2K | 0.01% | +7,000+12.3% | Added |
| HSBC Holdings PLC | 58,217 | $75.1K | 0.00% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 41,328 | $53.3K | 0.01% | +41,328 | New |
| Virtu Financial LLC | 34,093 | $44.0K | 0.00% | +34,093 | New |
| PFG Investments, LLC | 30,000 | $38.7K | 0.01% | −1,500−4.8% | Reduced |
| Resources Investment Advisors, LLC. | 26,300 | $33.9K | 0.00% | −12,762−32.7% | Reduced |
| Privium Fund Management (UK) Ltd | 24,726 | $32.4K | 0.03% | −152,474−86.0% | Reduced |
| Centiva Capital, LP | 25,000 | $32.3K | 0.00% | 00.0% | Unchanged |
| Level Four Advisory Services, LLC | 20,000 | $25.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 17,285 | $22.3K | 0.00% | −1,461−7.8% | Reduced |
| Creative Planning | 15,820 | $20.4K | 0.00% | +15,820 | New |
| Arcus Capital Partners, LLC | 15,000 | $19.4K | 0.01% | +15,000 | New |
| Golden State Equity Partners | 14,400 | $18.6K | 0.01% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 14,000 | $18.1K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 11,313 | $14.6K | 0.00% | +11,313 | New |
| Bank of America Corp | 9,218 | $11.9K | 0.00% | +9,217+921,700.0% | Added |
| Morgan Stanley | 6,693 | $8.63K | 0.00% | −2,326−25.8% | Reduced |
| SRS Capital Advisors, Inc. | 4,000 | $5.16K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 3,598 | $4.64K | 0.00% | +340+10.4% | Added |
| Allworth Financial LP | 1,500 | $1.94K | 0.00% | 00.0% | Unchanged |
| Sit Investment Associates Inc | 970 | $1.00K | 0.00% | 00.0% | Unchanged |
| New England Capital Financial Advisors LLC | 300 | $387 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 230 | $296 | 0.00% | −5,000−95.6% | Reduced |
| Barclays PLC | 76 | $98 | 0.00% | +38+100.0% | Added |
| Plante Moran Financial Advisors, LLC | 48 | $62 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 13 | $17 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 3 | $4 | 0.00% | 00.0% | Unchanged |
| Highlander Capital Management, LLC | 127 | $0 | 0.00% | +127 | New |
| Baker Bros. Advisors LP | 0 | $0 | 0.00% | −3,554,979−100.0% | Sold out |
| Boxer Capital, LLC | 0 | $0 | 0.00% | −2,250,000−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −74,727−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −9,500−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −2,491−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Tekla Capital Management LLC | – | – | – | – | Not filed |