MREOMEREO BIOPHARMA GROUP PLC
CUSIP 589492107 · Yahoo Finance ↗ · Google Finance ↗
Mereo Biopharma Group PLC (MREO) has 63 institutional holders in Filings Flow’s 13F database, together reporting 76.64M shares worth $25M as of Q1 2026. The largest reported holders are Janus Henderson Group Ltd., Frazier Life Sciences Management, L.P., and Deerfield Management Company, L.P..
Institutional Holders
63
Q1 2026
Reported Value
$25M
Ticker
MREO
Quarters Tracked
7
Ownership Trend
Institutional holders
Total reported value
Holders
Mixed quarters
| Manager | % of Portfolio | Value | Shares | Quarter |
|---|---|---|---|---|
| MANGROVE PARTNERS IM, LLC$1.2B AUM | 1.19% | $16M | 7.79M | Q3 2025OLDER |
| Blue Owl Capital Holdings LP$372M AUM | 0.80% | $3M | 1.25M | Q3 2025OLDER |
| Dauntless Investment Group, LLC$151M AUM | 0.63% | $363,471 | 134.1K | Q2 2025OLDER |
| Atle Fund Management AB$310M AUM | 0.62% | $167,282 | 764.9K | Q3 2025OLDER |
| Frazier Life Sciences Management, L.P.$3.9B AUM | 0.58% | $19M | 9.44M | Q3 2025OLDER |
| Rock Springs Capital Management LP$1.7B AUM | 0.55% | $9M | 4.57M | Q3 2025OLDER |
| Clearline Capital LP$1.9B AUM | 0.36% | $8M | 3.83M | Q3 2025OLDER |
| Defilade Capital Management, L.P.$712M AUM | 0.35% | $2M | 7.56M | Q1 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P.$8.5B AUM | 0.33% | $18M | 6.71M | Q2 2025OLDER |
| Knoll Capital Management, LLC$180M AUM | 0.29% | $536,568 | 260.5K | Q3 2025OLDER |
| Newtyn Management, LLC$936M AUM | 0.25% | $2M | 7.08M | Q1 2026 |
| Tejara Capital Ltd$303M AUM | 0.22% | $672,382 | 2.04M | Q1 2026 |
| 683 Capital Management, LLC$1.9B AUM | 0.21% | $4M | 12.00M | Q1 2026 |
| EcoR1 Capital, LLC$2.4B AUM | 0.19% | $4M | 13.37M | Q1 2026 |
| Persistent Asset Partners Ltd$268M AUM | 0.18% | $243,909 | 3.0K | Q2 2025OLDER |
| Artia Global Partners LP$499M AUM | 0.16% | $979,244 | 475.4K | Q3 2025OLDER |
| LUMINUS MANAGEMENT LLC$166M AUM | 0.14% | $164,596 | 395.0K | Q4 2025OLDER |
| DIADEMA PARTNERS LP$588M AUM | 0.14% | $833,192 | 2.00M | Q4 2025OLDER |
| Paloma Partners Management Co$510M AUM | 0.12% | $803,946 | 296.7K | Q2 2025OLDER |
| Monaco Asset Management SAM$542M AUM | 0.11% | $660,559 | 1.59M | Q4 2025OLDER |
| Rangeley Capital, LLC$103M AUM | 0.11% | $108,636 | 329.2K | Q1 2026 |
| TEMA ETFS LLC$1.5B AUM | 0.07% | $278,000 | 102.6K | Q2 2025OLDER |
| EntryPoint Capital, LLC$341M AUM | 0.07% | $166,972 | 400.7K | Q4 2025OLDER |
| Knott David M Jr$168M AUM | 0.06% | $99,111 | 300.3K | Q1 2026 |
| Rubric Capital Management LP$9.4B AUM | 0.05% | $5M | 15.31M | Q1 2026 |
| Logos Global Management LP$2.0B AUM | 0.05% | $770,895 | 1.85M | Q4 2025OLDER |
| Forefront Analytics, LLC$110M AUM | 0.04% | $42,167 | 127.8K | Q1 2026 |
| Soleus Capital Management, L.P.$2.5B AUM | 0.03% | $617,405 | 299.7K | Q3 2025OLDER |
| DLD Asset Management, LP$1.1B AUM | 0.02% | $310,858 | 746.0K | Q4 2025OLDER |
| Sheets Smith Investment Management$154M AUM | 0.02% | $34,793 | 16.9K | Q3 2025OLDER |
| SPHERA FUNDS MANAGEMENT LTD.$630M AUM | 0.02% | $106,425 | 255.4K | Q4 2025OLDER |
| Aberdeen Group plc$61.9B AUM | 0.02% | $11M | 5.54M | Q3 2025OLDER |
| Forefront Wealth Partners, LLC$239M AUM | 0.02% | $68,351 | 33.2K | Q3 2025OLDER |
| Janus Henderson Group Ltd.$209.4B AUM | 0.02% | $34M | 16.29M | Q3 2025OLDER |
| Caitong International Asset Management Co., Ltd$541M AUM | 0.01% | $17,461 | 8.5K | Q3 2025OLDER |
| Virtus Investment Advisers, LLC$363M AUM | 0.01% | $41,468 | 125.7K | Q1 2026 |
| Schonfeld Strategic Advisors LLC$14.2B AUM | 0.01% | $3M | 6.09M | Q4 2025OLDER |
| ALKEON CAPITAL MANAGEMENT LLC$59.5B AUM | 0.01% | $8M | 3.70M | Q3 2025OLDER |
| Scientech Research LLC$120M AUM | 0.01% | $20,855 | 10.1K | Q3 2025OLDER |
| Ascentis Independent Advisors$1.3B AUM | 0.01% | $40,994 | 19.9K | Q3 2025OLDER |
| SmartHarvest Portfolios, LLC$240M AUM | 0.01% | $16,339 | 49.5K | Q1 2026 |
| Three Magnolias Financial Advisors, LLC$157M AUM | 0.00% | $6,270 | 19.0K | Q1 2026 |
| NEOS Investment Management LLC$19.8B AUM | 0.00% | $278,000 | 102.6K | Q2 2025OLDER |
| J. Goldman & Co LP$3.4B AUM | 0.00% | $141,961 | 52.4K | Q2 2025OLDER |
| ADAR1 Capital Management, LLC$1.7B AUM | 0.00% | $49,500 | 150.0K | Q1 2026 |
| LMR Partners LLP$45.4B AUM | 0.00% | $338,750 | 125.0K | Q2 2025OLDER |
| Wealthspire Advisors, LLC$12.7B AUM | 0.00% | $262,692 | 796.0K | Q1 2026 |
| Avanza Fonder AB$3.6B AUM | 0.00% | $78,764 | 38.2K | Q3 2025OLDER |
| CANTOR FITZGERALD, L. P.$6.8B AUM | 0.00% | $226,600 | 110.0K | Q3 2025OLDER |
| Hudson Bay Capital Management LP$29.0B AUM | 0.00% | $545,900 | 265.0K | Q3 2025OLDER |
| Graham Capital Management, L.P.$4.1B AUM | 0.00% | $48,456 | 116.3K | Q4 2025OLDER |
| Quadrature Capital Ltd$8.4B AUM | 0.00% | $111,147 | 266.7K | Q4 2025OLDER |
| NFSG Corp$608M AUM | 0.00% | $6,188 | 18.8K | Q1 2026 |
| Clear Harbor Asset Management, LLC$1.4B AUM | 0.00% | $11,550 | 35.0K | Q1 2026 |
| LEVEL FOUR ADVISORY SERVICES, LLC$3.0B AUM | 0.00% | $20,600 | 10.0K | Q3 2025OLDER |
| BALYASNY ASSET MANAGEMENT L.P.$77.1B AUM | 0.00% | $533,491 | 1.28M | Q4 2025OLDER |
| StoneX Group Inc.$1.9B AUM | 0.00% | $12,168 | 36.9K | Q1 2026 |
| Astoria Portfolio Advisors LLC.$470M AUM | 0.00% | $2,802 | 10.0K | Q1 2026 |
| MILLENNIUM MANAGEMENT LLC$240.3B AUM | 0.00% | $1M | 3.56M | Q1 2026 |
| XTX Topco Ltd$5.8B AUM | 0.00% | $27,875 | 84.5K | Q1 2026 |
| NOMURA HOLDINGS INC$37.7B AUM | 0.00% | $213,828 | 103.8K | Q3 2025OLDER |
| PFG Investments, LLC$2.1B AUM | 0.00% | $6,938 | 16.6K | Q4 2025OLDER |
| GPS Wealth Strategies Group, LLC$117M AUM | 0.00% | $3,090 | 1.5K | Q3 2025OLDER |
| Point72 Asset Management, L.P.$78.1B AUM | 0.00% | $160,432 | 59.2K | Q2 2025OLDER |
| Brooklyn Investment Group$3.2B AUM | 0.00% | $2,301 | 849 | Q2 2025OLDER |
| GAMMA Investing LLC$2.7B AUM | 0.00% | $6,360 | 19.3K | Q1 2026 |
| Cubist Systematic Strategies, LLC$21.0B AUM | 0.00% | $57,178 | 21.1K | Q2 2025OLDER |
| Aquatic Capital Management LLC$3.5B AUM | 0.00% | $8,841 | 21.2K | Q4 2025OLDER |
| Marex Group Ltd$15.8B AUM | 0.00% | $27,100 | 10.0K | Q2 2025OLDER |
| MARSHALL WACE, LLP$100.4B AUM | 0.00% | $226,706 | 687.0K | Q1 2026 |
| GROUP ONE TRADING LLC$52.2B AUM | 0.00% | $110,823 | 335.8K | Q1 2026 |
| Baader Bank Aktiengesellschaft$1.3B AUM | 0.00% | $2,672 | 12.3K | Q1 2026 |
| BANK OF AMERICA CORP /DE/$1.37T AUM | 0.00% | $3M | 8.20M | Q1 2026 |
| Federation des caisses Desjardins du Quebec$27.8B AUM | 0.00% | $43,814 | 21.3K | Q3 2025OLDER |
| FMR LLC$1.90T AUM | 0.00% | $3M | 1.45M | Q3 2025OLDER |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$481.0B AUM | 0.00% | $735,449 | 1.76M | Q4 2025OLDER |
| Independent Advisor Alliance$9.3B AUM | 0.00% | $11,625 | 35.2K | Q1 2026 |
| Caption Management, LLC$17.1B AUM | 0.00% | $21,141 | 64.1K | Q1 2026 |
| State of New Jersey Common Pension Fund D$25.9B AUM | 0.00% | $32,227 | 15.6K | Q3 2025OLDER |
| IHT Wealth Management, LLC$4.3B AUM | 0.00% | $4,950 | 15.0K | Q1 2026 |
| Engineers Gate Manager LP$8.0B AUM | 0.00% | $7,905 | 24.0K | Q1 2026 |
| SIMPLEX TRADING, LLC$149.1B AUM | 0.00% | $174,921 | 419.5K | Q4 2025OLDER |
| UBS Group AG$666.3B AUM | 0.00% | $491,742 | 1.49M | Q1 2026 |
| QRG CAPITAL MANAGEMENT, INC.$9.7B AUM | 0.00% | $5,627 | 13.5K | Q4 2025OLDER |
| Squarepoint Ops LLC$85.1B AUM | 0.00% | $61,913 | 30.1K | Q3 2025OLDER |
| Centiva Capital, LP$13.6B AUM | 0.00% | $8,250 | 25.0K | Q1 2026 |
| OneDigital Investment Advisors LLC$10.2B AUM | 0.00% | $6,039 | 18.3K | Q1 2026 |
| World Investment Advisors$6.2B AUM | 0.00% | $3,300 | 10.0K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP$123.9B AUM | 0.00% | $61,987 | 187.8K | Q1 2026 |
| Arax Advisory Partners$3.5B AUM | 0.00% | $1,320 | 4.0K | Q1 2026 |
| CITIGROUP INC$234.5B AUM | 0.00% | $81,596 | 195.8K | Q4 2025OLDER |
| MORGAN STANLEY$1.67T AUM | 0.00% | $530,787 | 1.27M | Q1 2026 |
| AE Wealth Management LLC$18.5B AUM | 0.00% | $5,235 | 12.6K | Q4 2025OLDER |
| New England Capital Financial Advisors LLC$365M AUM | 0.00% | $99 | 300 | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC$63.9B AUM | 0.00% | $15,972 | 48.4K | Q1 2026 |
| CITADEL ADVISORS LLC$618.5B AUM | 0.00% | $150,084 | 454.8K | Q1 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM | 0.00% | $146,494 | 443.9K | Q1 2026 |
| JANE STREET GROUP, LLC$777.2B AUM | 0.00% | $110,145 | 333.8K | Q1 2026 |
| MML INVESTORS SERVICES, LLC$36.1B AUM | 0.00% | $4,026 | 12.2K | Q1 2026 |
| SIGNATUREFD, LLC$6.5B AUM | 0.00% | $507 | 187 | Q2 2025OLDER |
| RHUMBLINE ADVISERS$116.9B AUM | 0.00% | $6,452 | 19.6K | Q1 2026 |
| TORONTO DOMINION BANK$69.7B AUM | 0.00% | $2,294 | 5.5K | Q4 2025OLDER |
| PRINCIPAL SECURITIES, INC.$6.8B AUM | 0.00% | $155 | 75 | Q3 2025OLDER |
| SageView Advisory Group, LLC$3.0B AUM | 0.00% | $68 | 161 | Q4 2025OLDER |
| Allworth Financial LP$24.7B AUM | 0.00% | $495 | 1.5K | Q1 2026 |
| GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM | 0.00% | $30,536 | 92.5K | Q1 2026 |
| BlackRock, Inc.$5.72T AUM | 0.00% | $99,986 | 303.0K | Q1 2026 |
| STATE STREET CORP$2.90T AUM | 0.00% | $44,015 | 133.4K | Q1 2026 |
| RAYMOND JAMES FINANCIAL INC$324.4B AUM | 0.00% | $4,255 | 1.6K | Q2 2025OLDER |
| GOLDMAN SACHS GROUP INC$870.9B AUM | 0.00% | $11,678 | 28.0K | Q4 2025OLDER |
| Rockefeller Capital Management L.P.$56.4B AUM | 0.00% | $660 | 2.0K | Q1 2026 |
| Sound Income Strategies, LLC$2.1B AUM | 0.00% | $22 | 66 | Q1 2026 |
| SBI Securities Co., Ltd.$3.6B AUM | 0.00% | $38 | 114 | Q1 2026 |
| EverSource Wealth Advisors, LLC$3.3B AUM | 0.00% | $33 | 100 | Q1 2026 |
| OSAIC HOLDINGS, INC.$68.3B AUM | 0.00% | $495 | 1.5K | Q1 2026 |
| MAI Capital Management$17.7B AUM | 0.00% | $102 | 309 | Q1 2026 |
| JPMORGAN CHASE & CO$1.56T AUM | 0.00% | $6,904 | 21.8K | Q1 2026 |
| BARCLAYS PLC$416.3B AUM | 0.00% | $824 | 2.5K | Q1 2026 |
| Farther Finance Advisors, LLC$10.6B AUM | 0.00% | $7 | 17 | Q4 2025OLDER |
| WELLS FARGO & COMPANY/MN$530.3B AUM | 0.00% | $76 | 230 | Q1 2026 |
| NATIONAL BANK OF CANADA /FI/$111.5B AUM | 0.00% | $15 | 46 | Q1 2026 |
| US BANCORP \DE\$82.4B AUM | 0.00% | $4 | 13 | Q1 2026 |
| BNP PARIBAS FINANCIAL MARKETS$205.8B AUM | 0.00% | $1 | 3 | Q1 2026 |
| Axiom Investment Management LLC$131M AUM | — | $0 | 1 | Q1 2026 |
Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.