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, Q2 2025
Institutional positions in Mereo BioPharma Group plc as of Jun 30, 2025. 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
- 86
- −4 vs. Q1 2025
- Shares held
- 98.7M
- −12.4M (−11.1%) vs. Q1 2025
- Total value
- $267.8M
- +$17.5M (+7.0%) vs. Q1 2025
- New holders
- 12
- 31 more added
- Sold out
- 16
- 19 more reduced
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Mereo BioPharma Group plc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BNP Paribas Arbitrage, SA | 3 | $8 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 13 | $35 | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 75 | $203 | 0.00% | +43+134.4% | Added |
| Transce3nd, LLC | 127 | $344 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 187 | $507 | 0.00% | +187 | New |
| Wells Fargo & Company | 230 | $622 | 0.00% | −1,000−81.3% | Reduced |
| New England Capital Financial Advisors LLC | 300 | $813 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 309 | $838 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 470 | $1.27K | 0.00% | +470 | New |
| Skopos Labs, Inc. | 849 | $2.30K | 0.00% | +849 | New |
| Sit Investment Associates Inc | 970 | $3.00K | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 1,500 | $4.07K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 1,570 | $4.25K | 0.00% | +1,570 | New |
| Allworth Financial LP | 1,637 | $4.44K | 0.00% | +137+9.1% | Added |
| SRS Capital Advisors, Inc. | 4,000 | $10.8K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 4,544 | $12.3K | 0.01% | +3,060+206.2% | Added |
| Advisor Group Holdings, Inc. | 5,377 | $14.6K | 0.00% | +2,314+75.5% | Added |
| GAMMA Investing LLC | 9,257 | $25.1K | 0.00% | +877+10.5% | Added |
| Rhumbline Advisers | 9,878 | $26.8K | 0.00% | +3,290+49.9% | Added |
| Level Four Advisory Services, LLC | 10,000 | $27.1K | 0.00% | 00.0% | Unchanged |
| Marex Group plc | 10,000 | $27.1K | 0.00% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 13,000 | $35.2K | 0.01% | +2,000+18.2% | Added |
| Sheets Smith Investment Management | 16,890 | $45.8K | 0.04% | 00.0% | Unchanged |
| Resources Investment Advisors, LLC. | 18,300 | $49.6K | 0.00% | 00.0% | Unchanged |
| Forefront Analytics, LLC | 19,138 | $51.9K | 0.06% | −28,492−59.8% | Reduced |
| Golden State Equity Partners | 19,900 | $53.9K | 0.01% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 20,668 | $56.0K | 0.00% | +2,737+15.3% | Added |
| Cubist Systematic Strategies, LLC | 21,099 | $57.2K | 0.00% | +21,099 | New |
| Graham Capital Management, L.P. | 21,176 | $57.4K | 0.00% | −28,242−57.1% | Reduced |
| Significant Wealth Partners LLC | 22,261 | $60.3K | 0.03% | +8,490+61.7% | Added |
| Centiva Capital, LP | 25,000 | $67.8K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 25,399 | $69.1K | 0.00% | +2,712+12.0% | Added |
| Aquatic Capital Management LLC | 26,930 | $73.0K | 0.00% | +26,930 | New |
| Virtus Investment Advisers, Inc. | 33,825 | $91.7K | 0.03% | −10,182−23.1% | Reduced |
| Blue Rock Wealth Management LLC | 37,000 | $100.3K | 0.07% | +37,000 | New |
| PFG Investments, LLC | 37,433 | $101.4K | 0.01% | 00.0% | Unchanged |
| Avanza Fonder AB | 38,235 | $103.6K | 0.00% | +10,114+36.0% | Added |
| Clear Harbor Asset Management, LLC | 42,000 | $113.8K | 0.01% | 00.0% | Unchanged |
| State Street Corp | 44,942 | $121.8K | 0.00% | −717−1.6% | Reduced |
| J. Goldman & Co LP | 52,384 | $142.0K | 0.00% | −27,003−34.0% | Reduced |
| Point72 Asset Management, L.P. | 59,200 | $160.4K | 0.00% | +23,384+65.3% | Added |
| XTX Topco Ltd | 69,341 | $187.9K | 0.01% | +69,341 | New |
| Geode Capital Management, LLC | 92,534 | $250.8K | 0.00% | +378+0.4% | Added |
| Leonteq Securities AG | 100,000 | $271.0K | 0.02% | +100,000 | New |
| NEOS Investment Management LLC | 102,583 | $278.0K | 0.00% | −552,083−84.3% | Reduced |
| Tema ETFs LLC | 102,583 | $278.0K | 0.07% | −552,083−84.3% | Reduced |
| Nomura Holdings Inc | 125,000 | $338.8K | 0.00% | +125,000 | New |
| Dauntless Investment Group, LLC | 134,122 | $363.5K | 1.71% | +134,122 | New |
| Group One Trading, L.P. | 139,559 | $378.2K | 0.01% | +105,278+307.1% | Added |
| Two Sigma Advisers, LP | 144,600 | $391.9K | 0.00% | +115,300+393.5% | Added |
| Caption Management, LLC | 197,599 | $535.5K | 0.05% | +92,816+88.6% | Added |
| Simplex Trading, LLC | 201,141 | $545.0K | 0.01% | +197,024+4,785.6% | Added |
| Jane Street Group, LLC | 247,441 | $670.6K | 0.00% | +102,638+70.9% | Added |
| Knoll Capital Management, LLC | 260,470 | $705.9K | 0.50% | 00.0% | Unchanged |
| Paloma Partners Management Co | 296,659 | $803.9K | 0.18% | +296,659 | New |
| Knott David M Jr | 319,337 | $865.4K | 0.39% | 00.0% | Unchanged |
| Cantor Fitzgerald, L. P. | 342,957 | $929.4K | 0.02% | −12,043−3.4% | Reduced |
| Susquehanna International Group, LLP | 361,542 | $979.8K | 0.00% | +187,164+107.3% | Added |
| UBS Group AG | 373,505 | $1.01M | 0.00% | −558,516−59.9% | Reduced |
| Monaco Asset Management SAM | 395,000 | $1.07M | 0.41% | −21,468−5.2% | Reduced |
| Bank of America Corp | 438,661 | $1.19M | 0.00% | −90.0% | Reduced |
| Hudson Bay Capital Management LP | 450,000 | $1.22M | 0.01% | 00.0% | Unchanged |
| BlackRock, Inc. | 455,365 | $1.23M | 0.00% | +181,004+66.0% | Added |
| Artia Global Partners LP | 475,361 | $1.29M | 0.33% | +54,002+12.8% | Added |
| Millennium Management LLC | 595,673 | $1.61M | 0.00% | +201,242+51.0% | Added |
| Soleus Capital Management, L.P. | 599,711 | $1.63M | 0.11% | −87,242−12.7% | Reduced |
| Two Sigma Investments, LP | 659,158 | $1.79M | 0.00% | +413,952+168.8% | Added |
| Citadel Advisors LLC | 760,659 | $2.06M | 0.00% | +417,006+121.3% | Added |
| HealthInvest Partners AB | 764,901 | $2.07M | 0.89% | +374,901+96.1% | Added |
| Marshall Wace, LLP | 767,744 | $2.08M | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 785,377 | $2.13M | 0.00% | −1,394,265−64.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 909,640 | $2.47M | 0.02% | −681,416−42.8% | Reduced |
| FMR LLC | 1,478,500 | $4.01M | 0.00% | +719,400+94.8% | Added |
| Renaissance Technologies LLC | 1,480,471 | $4.01M | 0.01% | +130,000+9.6% | Added |
| Tejara Capital Ltd | 2,430,437 | $6.59M | 3.05% | −90,887−3.6% | Reduced |
| Standard Life Aberdeen plc | 3,028,872 | $8.21M | 0.01% | +840,518+38.4% | Added |
| Goldman Sachs Group Inc | 3,090,068 | $8.37M | 0.00% | +964,148+45.4% | Added |
| Clearline Capital LP | 3,618,163 | $9.81M | 0.86% | +400,269+12.4% | Added |
| 683 Capital Management, LLC | 4,350,000 | $11.8M | 1.20% | −285,000−6.1% | Reduced |
| Rock Springs Capital Management LP | 4,465,292 | $12.1M | 0.75% | −2,218,955−33.2% | Reduced |
| Alkeon Capital Management LLC | 4,698,100 | $12.7M | 0.06% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 6,710,429 | $18.2M | 0.33% | 00.0% | Unchanged |
| Mangrove Partners | 8,636,485 | $23.4M | 2.51% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 9,440,112 | $25.6M | 1.02% | +1,620,249+20.7% | Added |
| Rubric Capital Management LP | 15,307,347 | $41.5M | 0.67% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 17,688,592 | $48.1M | 0.02% | −5,046,529−22.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −1,700,756−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −1,569,100−100.0% | Sold out |
| Great Point Partners LLC | 0 | $0 | 0.00% | −1,275,000−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −947,986−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −876,961−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −800,000−100.0% | Sold out |
| Acuta Capital Partners, LLC | 0 | $0 | 0.00% | −791,815−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −113,247−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −101,070−100.0% | Sold out |
| Diadema Partners LP | 0 | $0 | 0.00% | −492,215−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −39,030−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −15,713−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −13,577−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |