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 |
|---|---|---|---|---|---|
| Highlander Capital Management, LLC | 127 | $0 | 0.00% | +127 | New |
| BNP Paribas Arbitrage, SA | 3 | $4 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 13 | $17 | 0.00% | 00.0% | Unchanged |
| Plante Moran Financial Advisors, LLC | 48 | $62 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 76 | $98 | 0.00% | +38+100.0% | Added |
| Wells Fargo & Company | 230 | $296 | 0.00% | −5,000−95.6% | Reduced |
| New England Capital Financial Advisors LLC | 300 | $387 | 0.00% | 00.0% | Unchanged |
| Sit Investment Associates Inc | 970 | $1.00K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 1,500 | $1.94K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 3,598 | $4.64K | 0.00% | +340+10.4% | Added |
| SRS Capital Advisors, Inc. | 4,000 | $5.16K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 6,693 | $8.63K | 0.00% | −2,326−25.8% | Reduced |
| Bank of America Corp | 9,218 | $11.9K | 0.00% | +9,217+921,700.0% | Added |
| XTX Topco Ltd | 11,313 | $14.6K | 0.00% | +11,313 | New |
| Oppenheimer & Co Inc | 14,000 | $18.1K | 0.00% | 00.0% | Unchanged |
| Golden State Equity Partners | 14,400 | $18.6K | 0.01% | 00.0% | Unchanged |
| Arcus Capital Partners, LLC | 15,000 | $19.4K | 0.01% | +15,000 | New |
| Creative Planning | 15,820 | $20.4K | 0.00% | +15,820 | New |
| Jane Street Group, LLC | 17,285 | $22.3K | 0.00% | −1,461−7.8% | Reduced |
| Level Four Advisory Services, LLC | 20,000 | $25.8K | 0.00% | 00.0% | Unchanged |
| Centiva Capital, LP | 25,000 | $32.3K | 0.00% | 00.0% | Unchanged |
| Privium Fund Management (UK) Ltd | 24,726 | $32.4K | 0.03% | −152,474−86.0% | Reduced |
| Resources Investment Advisors, LLC. | 26,300 | $33.9K | 0.00% | −12,762−32.7% | Reduced |
| PFG Investments, LLC | 30,000 | $38.7K | 0.01% | −1,500−4.8% | Reduced |
| Virtu Financial LLC | 34,093 | $44.0K | 0.00% | +34,093 | New |
| NEOS Investment Management LLC | 41,328 | $53.3K | 0.01% | +41,328 | New |
| HSBC Holdings PLC | 58,217 | $75.1K | 0.00% | 00.0% | Unchanged |
| Clear Harbor Asset Management, LLC | 63,754 | $82.2K | 0.01% | +7,000+12.3% | Added |
| Forefront Analytics, LLC | 65,649 | $84.7K | 0.05% | −17,100−20.7% | Reduced |
| Primecap Management Co | 79,000 | $101.9K | 0.00% | −78,700−49.9% | Reduced |
| Geode Capital Management, LLC | 96,630 | $124.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 103,270 | $133.2K | 0.00% | +103,270 | New |
| Boothbay Fund Management, LLC | 120,584 | $155.6K | 0.01% | −61,140−33.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 130,600 | $168.5K | 0.00% | +100+0.1% | Added |
| JPMorgan Chase & Co | 132,801 | $171.3K | 0.00% | −171,230−56.3% | Reduced |
| Two Sigma Investments, LP | 142,602 | $184.0K | 0.00% | −55,157−27.9% | Reduced |
| Ikarian Capital, LLC | 591,676 | $191.3K | 0.07% | −300,000−33.6% | Reduced |
| 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 |
| J. Goldman & Co LP | 445,485 | $574.7K | 0.03% | +94,500+26.9% | Added |
| Monaco Asset Management SAM | 595,729 | $768.5K | 0.38% | −110,000−15.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 800,000 | $1.03M | 0.00% | +800,000 | New |
| DAFNA Capital Management LLC | 962,513 | $1.24M | 0.39% | −46,500−4.6% | Reduced |
| Millennium Management LLC | 1,243,585 | $1.60M | 0.00% | +288,514+30.2% | Added |
| Renaissance Technologies LLC | 1,727,570 | $2.23M | 0.00% | −51,202−2.9% | Reduced |
| Goldman Sachs Group Inc | 2,023,672 | $2.61M | 0.00% | +41,266+2.1% | Added |
| Citadel Advisors LLC | 2,242,425 | $2.89M | 0.00% | +473,982+26.8% | Added |
| Clearline Capital LP | 3,102,723 | $4.00M | 0.40% | +1,157,683+59.5% | Added |
| Tejara Capital Ltd | 3,215,001 | $4.15M | 2.36% | +177,030+5.8% | Added |
| Alkeon Capital Management LLC | 3,738,100 | $4.82M | 0.03% | 00.0% | Unchanged |
| Mangrove Partners | 5,531,547 | $7.14M | 0.73% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 6,000,000 | $7.74M | 0.78% | +600,000+11.1% | Added |
| Suvretta Capital Management, LLC | 7,364,438 | $9.50M | 0.51% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 7,676,481 | $9.90M | 0.27% | +634,090+9.0% | Added |
| Soleus Capital Management, L.P. | 9,677,419 | $12.5M | 1.26% | +9,677,419 | New |
| Rubric Capital Management LP | 11,616,120 | $15.0M | 0.63% | 00.0% | Unchanged |
| 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 |