Mereo Biopharma Group PL-ADRMREO
13F holders, Q4 2024 (December 31)91holders +14
16new positions
7sold out
3famous investors
$3.50avg. 13F price*
At the end of Q4 2024, 91 institutions reported holding Mereo Biopharma Group PL-ADR (MREO) in their 13F filings, up 14 from Q3 2024. 16 opened new positions and 7 sold out. The largest holders were Janus Henderson Group PLC ($59.8M), Rubric Capital Management LP ($53.6M) and Rock Springs Capital Management LP ($33.6M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Mereo Biopharma Group PL-ADR
- CUSIP
- 589492107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 16 | $22.2M |
| Exits | 7 | $1.2M |
All 13F filers, Q3 2024 → Q4 2024: 13,785,582 shares bought and 5,267,596 shares sold, net +8,517,986 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 91 holders
| Janus Henderson Group PLC | 0.03% | Add +38.7% | 17,122,563 | $59.8M |
| Rubric Capital Management LP | 0.97% | No change | 15,307,347 | $53.6M |
| Rock Springs Capital Management LP | 1.28% | Add +0.7% | 9,599,170 | $33.6M |
| Adage Capital Partners Gp, L.L.C. | 0.05% | Reduce -10.3% | 8,715,013 | $30.5M |
| Mangrove Partners Im, LLC | 3.68% | Reduce -1.1% | 8,636,485 | $30.2M |
| Deerfield Management Company, L.P. | 0.50% | No change | 6,710,429 | $23.5M |
| Frazier Life Sciences Management, L.P. | 0.74% | No change | 5,097,779 | $17.8M |
| Alkeon Capital Management LLC | 0.10% | No change | 4,698,100 | $16.4M |
| 683 Capital Management, LLC | 1.75% | Reduce -6.2% | 4,550,000 | $15.9M |
| Millennium Management | 0.01% | Reduce -26.5% | 3,965,432 | $13.9M |
| Morgan Stanley | 0.00% | Add +51.4% | 3,554,234 | $12.4M |
| Clearline Capital LP | 1.49% | Reduce -0.8% | 3,217,894 | $11.3M |
| UBS Group AG | 0.00% | New | 2,648,140 | $9.3M |
| Tejara Capital Ltd | 5.32% | Reduce -18.1% | 2,317,085 | $8.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +5.5% | 2,119,852 | $7.4M |
| Renaissance Technologies | 0.01% | Reduce -8.9% | 1,189,471 | $4.2M |
| Great Point Partners LLC | 1.90% | New | 1,150,000 | $4.0M |
| Perceptive Advisors LLC | 0.11% | Add +33.1% | 1,085,512 | $3.8M |
| Integral Health Asset Management, LLC | 0.31% | No change | 1,000,000 | $3.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 964,900 | $3.4M |
| Tema ETFs LLC | 1.29% | — | 890,548 | $3.1M |
| Marshall Wace, LLP | 0.00% | Reduce -15.8% | 866,317 | $3.0M |
| NEOS Investment Management LLC | 0.07% | Reduce -1.3% | 824,603 | $2.9M |
| Soleus Capital Management, L.P. | 0.21% | Reduce -7.1% | 786,953 | $2.8M |
| Acuta Capital Partners, LLC | 2.74% | Reduce -38.2% | 779,308 | $2.7M |
| Eversept Partners, LP | 0.28% | No change | 777,890 | $2.7M |
| Blue Owl Capital Holdings LP | 0.54% | Reduce -20.6% | 672,809 | $2.4M |
| Woodline Partners LP | 0.01% | New | 618,784 | $2.2M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 493,900 | $1.7M |
| Artia Global Partners LP | 0.59% | No change | 421,359 | $1.5M |
| Atle Fund Management AB | 0.65% | Add +95.0% | 390,000 | $1.4M |
| Susquehanna International Group, LLP | 0.00% | Add +1.3% | 391,590 | $1.4M |
| Monaco Asset Management SAM | 0.59% | Reduce -0.8% | 381,468 | $1.3M |
| Knott David M Jr | 0.42% | No change | 331,000 | $1.2M |
| Hudson Bay Capital Management LP | 0.01% | Add +80.0% | 315,000 | $1.1M |
| Citadel Advisors | 0.00% | Add +141.0% | 313,950 | $1.1M |
| BlackRock, Inc. | 0.00% | Add +1806.4% | 273,019 | $956K |
| Knoll Capital Management, LLC | 0.59% | No change | 260,470 | $912K |
| Verition Fund Management LLC | 0.00% | Add +116.2% | 237,777 | $832K |
| Cantor Fitzgerald, L. P. | 0.03% | New | 225,000 | $788K |
| Polar Asset Management Partners Inc. | 0.01% | Reduce -14.3% | 169,977 | $595K |
| Walleye Capital LLC | 0.00% | New | 129,629 | $454K |
| Jane Street Group, LLC | 0.00% | Reduce -44.0% | 120,278 | $421K |
| Ameriprise Financial Inc. | 0.00% | Add +187.8% | 94,456 | $331K |
| Geode Capital Management, LLC | 0.00% | No change | 92,156 | $323K |
| J. Goldman & Co LP | 0.01% | Reduce -68.8% | 79,387 | $278K |
| Two Sigma Investments, LP | 0.00% | Reduce -48.8% | 68,735 | $241K |
| Simplex Trading, LLC | 0.01% | Add +62.8% | 55,099 | $192K |
| State Street Corp. | 0.00% | Reduce -1.0% | 47,085 | $165K |
| Clear Harbor Asset Management, LLC | 0.01% | Reduce -3.5% | 42,000 | $147K |
| PFG Investments, LLC | 0.01% | Add +132.0% | 39,433 | $138K |
| XTX Topco Ltd | 0.01% | New | 37,974 | $133K |
| Forefront Analytics, LLC | 0.06% | Add +2.8% | 34,753 | $122K |
| Centiva Capital, LP | 0.00% | No change | 25,000 | $88K |
| Squarepoint Ops LLC | 0.00% | Add +13.7% | 23,667 | $83K |
| Ascentis Independent Advisors | 0.02% | Reduce -22.3% | 22,600 | $79K |
| Graham Capital Management, L.P. | 0.00% | Add +74.7% | 22,189 | $78K |
| Avanza Fonder AB | 0.00% | — | 19,600 | $69K |
| Virtus Advisers, LLC | 0.03% | New | 19,060 | $67K |
| OneDigital Investment Advisors LLC | 0.00% | No change | 18,300 | $64K |
| Sheets Smith Investment Management | 0.05% | — | 16,890 | $59K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +11.3% | 16,435 | $58K |
| HSBC Holdings PLC | 0.00% | Reduce -52.5% | 13,577 | $47K |
| Jump Financial, LLC | 0.00% | New | 11,116 | $39K |
| Significant Wealth Partners LLC | 0.02% | New | 10,805 | $38K |
| NFSG Corp | 0.01% | New | 10,700 | $37K |
| ADAR1 Capital Management, LLC | 0.01% | No change | 10,000 | $35K |
| Level Four Advisory Services, LLC | 0.00% | No change | 10,000 | $35K |
| Marex Group Ltd | 0.00% | New | 10,000 | $35K |
| GAMMA Investing LLC | 0.00% | Reduce -15.8% | 9,001 | $32K |
| Rhumbline Advisers | 0.00% | Reduce -0.5% | 7,237 | $25K |
| Arax Advisory Partners | 0.00% | No change | 4,000 | $14K |
| Bank of America Corp. | 0.00% | Reduce -98.9% | 2,320 | $8K |
| Lindbrook Capital, LLC | 0.00% | No change | 1,665 | $6K |
| GPS Wealth Strategies Group, LLC | 0.00% | No change | 1,500 | $5K |
| Allworth Financial LP | 0.00% | No change | 1,500 | $4K |
| Bfsg, LLC | 0.00% | No change | 1,000 | $4K |
| Sit Investment Associates Inc. | 0.00% | No change | 970 | $3K |
| Signaturefd, LLC | 0.00% | No change | 679 | $2K |
| JPMorgan Chase & Co. | 0.00% | No change | 365 | $1K |
| Caitong International Asset Management Co., Ltd | 0.00% | — | 320 | $1K |
| MAI Capital Management | 0.00% | New | 309 | $1K |
| New England Capital Financial Advisors LLC | 0.00% | No change | 300 | $1K |
| Wells Fargo & Company | 0.00% | Reduce -0.4% | 229 | $802 |
| GeoWealth Management, LLC | 0.00% | Add +1028.6% | 158 | $554 |
| Osaic Holdings, Inc. | 0.00% | New | 129 | $452 |
| Transce3nd, LLC | 0.00% | — | 127 | $445 |
| Cranbrook Wealth Management, LLC | 0.00% | No change | 60 | $210 |
| Principal Securities, Inc. | 0.00% | New | 32 | $112 |
| US Bancorp \de | 0.00% | No change | 13 | $46 |
| BNP Paribas Financial Markets | 0.00% | Reduce -99.8% | 3 | $10 |
"% of holder's portfolio" is MREO's weight in each manager's 13F, not the share of Mereo Biopharma Group PL-ADR the manager owns.