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, Q1 2025
Institutional positions in Mereo BioPharma Group plc as of Mar 31, 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
- 90
- −1 vs. Q4 2024
- Shares held
- 111.1M
- −4.10M (−3.6%) vs. Q4 2024
- Total value
- $250.3M
- −$152.8M (−37.9%) vs. Q4 2024
- New holders
- 13
- 27 more added
- Sold out
- 14
- 21 more reduced
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Mereo BioPharma Group plc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 22,735,121 | $52.4M | 0.03% | +5,612,558+32.8% | Added |
| Rubric Capital Management LP | 15,307,347 | $34.4M | 0.62% | 00.0% | Unchanged |
| Mangrove Partners | 8,636,485 | $19.4M | 2.19% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 7,819,863 | $17.6M | 0.80% | +2,722,084+53.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 6,710,429 | $15.1M | 0.30% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 6,684,247 | $15.0M | 0.86% | −2,914,923−30.4% | Reduced |
| Alkeon Capital Management LLC | 4,698,100 | $10.6M | 0.06% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 4,635,000 | $10.4M | 1.06% | +85,000+1.9% | Added |
| Clearline Capital LP | 3,217,894 | $7.24M | 0.73% | 00.0% | Unchanged |
| Tejara Capital Ltd | 2,521,324 | $5.67M | 2.80% | +204,239+8.8% | Added |
| Standard Life Aberdeen plc | 2,188,354 | $4.92M | 0.01% | +2,188,354 | New |
| Morgan Stanley | 2,179,642 | $4.90M | 0.00% | −1,374,592−38.7% | Reduced |
| Goldman Sachs Group Inc | 2,125,920 | $4.78M | 0.00% | +6,068+0.3% | Added |
| Adage Capital Partners GP, L.L.C. | 1,700,756 | $3.83M | 0.01% | −7,014,257−80.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 1,591,056 | $3.58M | 0.02% | +1,097,156+222.1% | Added |
| UBS Asset Management Americas Inc | 1,569,100 | $3.53M | 0.00% | +604,200+62.6% | Added |
| Renaissance Technologies LLC | 1,350,471 | $3.04M | 0.00% | +161,000+13.5% | Added |
| Great Point Partners LLC | 1,275,000 | $2.87M | 1.56% | +125,000+10.9% | Added |
| Woodline Partners LP | 947,986 | $2.13M | 0.01% | +329,202+53.2% | Added |
| UBS Group AG | 932,021 | $2.10M | 0.00% | −1,716,119−64.8% | Reduced |
| Perceptive Advisors LLC | 876,961 | $1.97M | 0.07% | −208,551−19.2% | Reduced |
| Integral Health Asset Management, LLC | 800,000 | $1.80M | 0.20% | −200,000−20.0% | Reduced |
| Acuta Capital Partners, LLC | 791,815 | $1.78M | 2.07% | +12,507+1.6% | Added |
| Marshall Wace, LLP | 767,744 | $1.73M | 0.00% | −98,573−11.4% | Reduced |
| FMR LLC | 759,100 | $1.71M | 0.00% | +759,100 | New |
| Soleus Capital Management, L.P. | 686,953 | $1.55M | 0.12% | −100,000−12.7% | Reduced |
| Tema ETFs LLC | 654,666 | $1.47M | 0.44% | −235,882−26.5% | Reduced |
| NEOS Investment Management LLC | 654,666 | $1.47M | 0.03% | −169,937−20.6% | Reduced |
| Hudson Bay Capital Management LP | 450,000 | $1.01M | 0.01% | +135,000+42.9% | Added |
| Bank of America Corp | 438,670 | $987.0K | 0.00% | +436,350+18,808.2% | Added |
| Artia Global Partners LP | 421,359 | $948.1K | 0.28% | 00.0% | Unchanged |
| Monaco Asset Management SAM | 416,468 | $937.1K | 0.47% | +35,000+9.2% | Added |
| Millennium Management LLC | 394,431 | $887.5K | 0.00% | −3,571,001−90.1% | Reduced |
| HealthInvest Partners AB | 390,000 | $877.5K | 0.39% | 00.0% | Unchanged |
| Cantor Fitzgerald, L. P. | 355,000 | $798.8K | 0.03% | +130,000+57.8% | Added |
| Citadel Advisors LLC | 343,653 | $773.2K | 0.00% | +29,703+9.5% | Added |
| Knott David M Jr | 319,337 | $718.5K | 0.34% | −11,663−3.5% | Reduced |
| BlackRock, Inc. | 274,361 | $617.3K | 0.00% | +1,342+0.5% | Added |
| Knoll Capital Management, LLC | 260,470 | $586.1K | 0.38% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 245,206 | $551.7K | 0.00% | +176,471+256.7% | Added |
| Susquehanna International Group, LLP | 174,378 | $392.4K | 0.00% | −217,212−55.5% | Reduced |
| Jane Street Group, LLC | 144,803 | $325.8K | 0.00% | +24,525+20.4% | Added |
| Persistent Asset Partners Ltd | 113,247 | $254.8K | 0.22% | +113,247 | New |
| Caption Management, LLC | 104,783 | $235.8K | 0.01% | +104,783 | New |
| BIT Capital GmbH | 101,070 | $227.4K | 0.03% | +101,070 | New |
| Geode Capital Management, LLC | 92,156 | $207.4K | 0.00% | 00.0% | Unchanged |
| J. Goldman & Co LP | 79,387 | $178.6K | 0.01% | 00.0% | Unchanged |
| Diadema Partners LP | 492,215 | $168.5K | 0.13% | +492,215 | New |
| Graham Capital Management, L.P. | 49,418 | $111.2K | 0.00% | +27,229+122.7% | Added |
| Forefront Analytics, LLC | 47,630 | $107.3K | 0.12% | +12,877+37.1% | Added |
| State Street Corp | 45,659 | $102.7K | 0.00% | −1,426−3.0% | Reduced |
| Virtus Investment Advisers, Inc. | 44,007 | $99.0K | 0.03% | +44,007 | New |
| Clear Harbor Asset Management, LLC | 42,000 | $94.5K | 0.01% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 39,030 | $87.8K | 0.00% | −55,426−58.7% | Reduced |
| PFG Investments, LLC | 37,433 | $84.2K | 0.01% | −2,000−5.1% | Reduced |
| Point72 Asset Management, L.P. | 35,816 | $80.6K | 0.00% | +35,816 | New |
| Group One Trading, L.P. | 34,281 | $77.1K | 0.00% | +34,281 | New |
| Avanza Fonder AB | 28,121 | $66.6K | 0.00% | +8,521+43.5% | Added |
| Two Sigma Advisers, LP | 29,300 | $65.9K | 0.00% | +29,300 | New |
| Centiva Capital, LP | 25,000 | $56.3K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 22,687 | $51.2K | 0.00% | +22,687 | New |
| Golden State Equity Partners | 19,900 | $44.8K | 0.01% | −2,700−11.9% | Reduced |
| Resources Investment Advisors, LLC. | 18,300 | $41.2K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 17,931 | $40.3K | 0.00% | −5,736−24.2% | Reduced |
| Sheets Smith Investment Management | 16,890 | $38.0K | 0.04% | 00.0% | Unchanged |
| HRT Financial LP | 15,713 | $35.0K | 0.00% | +15,713 | New |
| Significant Wealth Partners LLC | 13,771 | $31.0K | 0.02% | +2,966+27.5% | Added |
| HSBC Holdings PLC | 13,577 | $29.8K | 0.00% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 11,000 | $24.8K | 0.01% | +300+2.8% | Added |
| Level Four Advisory Services, LLC | 10,000 | $22.5K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 10,000 | $22.5K | 0.00% | 00.0% | Unchanged |
| Marex Group plc | 10,000 | $22.5K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 8,380 | $18.9K | 0.00% | −621−6.9% | Reduced |
| Rhumbline Advisers | 6,588 | $14.8K | 0.00% | −649−9.0% | Reduced |
| Simplex Trading, LLC | 4,117 | $9.00K | 0.00% | −50,982−92.5% | Reduced |
| SRS Capital Advisors, Inc. | 4,000 | $9.00K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 3,063 | $6.89K | 0.00% | +2,934+2,274.4% | Added |
| Allworth Financial LP | 1,500 | $3.81K | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 1,500 | $3.38K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 1,484 | $3.34K | 0.00% | +1,164+363.8% | Added |
| Wells Fargo & Company | 1,230 | $2.77K | 0.00% | +1,001+437.1% | Added |
| Sit Investment Associates Inc | 970 | $2.00K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 365 | $821 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 309 | $696 | 0.00% | 00.0% | Unchanged |
| New England Capital Financial Advisors LLC | 300 | $675 | 0.00% | 00.0% | Unchanged |
| Transce3nd, LLC | 127 | $286 | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 32 | $112 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 13 | $29 | 0.00% | 00.0% | Unchanged |
| Grove Bank & Trust | 12 | $27 | 0.00% | +12 | New |
| BNP Paribas Arbitrage, SA | 3 | $7 | 0.00% | 00.0% | Unchanged |
| Eversept Partners, LP | 0 | $0 | 0.00% | −777,890−100.0% | Sold out |
| Blue Owl Capital Holdings LP | 0 | $0 | 0.00% | −672,809−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −237,777−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −169,977−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −129,629−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −37,974−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −19,060−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −16,435−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −11,116−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −1,665−100.0% | Sold out |