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 2021
Institutional positions in Mereo BioPharma Group plc as of Sep 30, 2021. 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
- 63
- −9 vs. Q2 2021
- Shares held
- 88.4M
- +15.1M (+20.6%) vs. Q2 2021
- Total value
- $212.2M
- −$72.2M (−25.4%) vs. Q2 2021
- New holders
- 8
- 16 more added
- Sold out
- 17
- 19 more reduced
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Mereo BioPharma Group plc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| OrbiMed Advisors LLC | 17,264,764 | $41.8M | 0.46% | – | – |
| Rubric Capital Management LP | 11,300,000 | $27.3M | 1.57% | +5,639,392+99.6% | Added |
| Point72 Asset Management, L.P. | 9,975,000 | $24.1M | 0.11% | −132,189−1.3% | Reduced |
| Suvretta Capital Management, LLC | 9,142,067 | $22.1M | 0.38% | +492,767+5.7% | Added |
| Vivo Capital, LLC | 6,907,189 | $16.7M | 0.75% | +2,686,251+63.6% | Added |
| Rock Springs Capital Management LP | 4,832,978 | $11.7M | 0.25% | +290,209+6.4% | Added |
| Citadel Advisors LLC | 4,074,620 | $9.86M | 0.01% | +1,120,552+37.9% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 2,976,121 | $7.20M | 0.09% | 00.0% | Unchanged |
| Holocene Advisors, LP | 2,137,219 | $5.17M | 0.03% | +187,482+9.6% | Added |
| Commodore Capital LP | 1,972,958 | $4.78M | 1.26% | −86,771−4.2% | Reduced |
| Alkeon Capital Management LLC | 1,935,600 | $4.68M | 0.02% | 00.0% | Unchanged |
| Tekla Capital Management LLC | 1,551,082 | $3.75M | 0.12% | +506,292+48.5% | Added |
| Artal Group S.A. | 1,500,000 | $3.63M | 0.09% | 00.0% | Unchanged |
| Millennium Management LLC | 1,434,544 | $3.47M | 0.00% | −229,406−13.8% | Reduced |
| Altium Capital Management LP | 1,250,000 | $3.02M | 0.81% | 00.0% | Unchanged |
| DAFNA Capital Management LLC | 1,126,613 | $2.73M | 0.72% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $2.42M | 0.00% | +1,000,000 | New |
| Eversept Partners, LP | 899,569 | $2.18M | 0.17% | +899,569 | New |
| Schonfeld Strategic Advisors LLC | 820,793 | $1.99M | 0.02% | −504,260−38.1% | Reduced |
| Monashee Investment Management LLC | 800,000 | $1.94M | 0.36% | 00.0% | Unchanged |
| Endurant Capital Management LP | 746,514 | $1.81M | 0.55% | −10,401−1.4% | Reduced |
| Affinity Asset Advisors, LLC | 650,000 | $1.57M | 0.63% | 00.0% | Unchanged |
| State Street Corp | 412,768 | $1.00M | 0.00% | +334,568+427.8% | Added |
| Renaissance Technologies LLC | 398,900 | $965.0K | 0.00% | +113,800+39.9% | Added |
| Silverarc Capital Management, LLC | 365,661 | $885.0K | 0.51% | −40,210−9.9% | Reduced |
| Primecap Management Co | 339,600 | $822.0K | 0.00% | −149,338−30.5% | Reduced |
| Baker Bros. Advisors LP | 292,692 | $708.0K | 0.00% | −2,166,707−88.1% | Reduced |
| Delphi Management Partners VIII, L.L.C. | 256,734 | $621.0K | 0.45% | 00.0% | Unchanged |
| J. Goldman & Co LP | 241,413 | $584.0K | 0.05% | −385,008−61.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 185,500 | $449.0K | 0.01% | +127,300+218.7% | Added |
| Ikarian Capital, LLC | 903,680 | $322.0K | 0.07% | −40,628−4.3% | Reduced |
| Geode Capital Management, LLC | 96,630 | $233.0K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 87,420 | $212.0K | 0.01% | −40,628−31.7% | Reduced |
| Bessemer Group Inc | 58,000 | $140.0K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 58,217 | $137.0K | 0.00% | 00.0% | Unchanged |
| Logos Global Management LP | 46,984 | $114.0K | 0.01% | 00.0% | Unchanged |
| Bank of America Corp | 40,840 | $99.0K | 0.00% | −13,593−25.0% | Reduced |
| Susquehanna International Group, LLP | 38,582 | $93.0K | 0.00% | +17,453+82.6% | Added |
| Resources Investment Advisors, LLC. | 36,043 | $87.0K | 0.00% | +23,043+177.3% | Added |
| Insight Advisors, LLC | 35,275 | $84.0K | 0.03% | −130,550−78.7% | Reduced |
| Personal Cfo Solutions, LLC | 33,388 | $81.0K | 0.02% | 00.0% | Unchanged |
| Jump Financial, LLC | 32,788 | $79.0K | 0.01% | −118,912−78.4% | Reduced |
| Valeo Financial Advisors, LLC | 22,506 | $54.0K | 0.00% | −10,000−30.8% | Reduced |
| Morgan Stanley | 21,142 | $51.0K | 0.00% | −34,449−62.0% | Reduced |
| Legal & General Group Plc | 20,312 | $49.0K | 0.00% | +4,595+29.2% | Added |
| Barclays PLC | 20,000 | $48.0K | 0.00% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 19,000 | $46.0K | 0.00% | +19,000 | New |
| Simplex Trading, LLC | 11,413 | $35.0K | 0.00% | −5,122−31.0% | Reduced |
| BlackRock Inc. | 14,300 | $35.0K | 0.00% | +1,341+10.3% | Added |
| Virtu Financial LLC | 12,202 | $30.0K | 0.00% | +12,202 | New |
| CSS LLC | 10,735 | $26.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 9,949 | $24.0K | 0.00% | +9,019+969.8% | Added |
| Royal Bank of Canada | 7,500 | $18.0K | 0.00% | +7,475+29,900.0% | Added |
| Newbridge Financial Services Group, Inc. | 4,000 | $10.0K | 0.01% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 4,000 | $10.0K | 0.00% | +4,000 | New |
| Group One Trading, L.P. | 3,826 | $9.00K | 0.00% | −7,600−66.5% | Reduced |
| Wells Fargo & Company | 3,230 | $8.00K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 3,000 | $7.00K | 0.00% | +3,000 | New |
| Total Clarity Wealth Management, Inc. | 2,375 | $6.00K | 0.00% | +2,375 | New |
| Tower Research Capital LLC (TRC) | 629 | $2.00K | 0.00% | +629 | New |
| Signaturefd, LLC | 138 | $0 | 0.00% | −26−15.9% | Reduced |
| Rockefeller Capital Management L.P. | 358 | $0 | 0.00% | 00.0% | Unchanged |
| Plante Moran Financial Advisors, LLC | 48 | $0 | 0.00% | 00.0% | Unchanged |
| Boxer Capital, LLC | 0 | $0 | 0.00% | −6,226,673−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −1,696,068−100.0% | Sold out |
| Asymmetry Capital Management, L.P. | 0 | $0 | 0.00% | −1,618,328−100.0% | Sold out |
| Tri Locum Partners LP | 0 | $0 | 0.00% | −1,253,729−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −269,390−100.0% | Sold out |
| Pura Vida Investments, LLC | 0 | $0 | 0.00% | −196,570−100.0% | Sold out |
| HealthCor Management, L.P. | 0 | $0 | 0.00% | −149,170−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −44,682−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −27,400−100.0% | Sold out |
| Windsor Creek Advisors, LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −14,276−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −12,686−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −3,657−100.0% | Sold out |
| Endurance Wealth Management, Inc. | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Sit Investment Associates Inc | 0 | $0 | 0.00% | −970−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |