MREO — MEREO BIOPHARMA GROUP PLC
As of Q2 2026, 12 SEC-registered investment managers reported holding MREO (MEREO BIOPHARMA GROUP PLC) in their latest 13F filings, with a combined reported value of $3.94M across 12.42M shares. That is -17.4% by share count (-2.61M shares) versus the previous quarter, while reported value moved -20.5%. Ownership is concentrated: the five largest holders account for 97.7% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 3 opened new positions, 4 added to existing stakes, 3 trimmed, 2 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
MREO is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Janus Henderson Group history | Q3 2025 | 16.29M | $33.64M | 0.01% | Reduce |
| Alkeon Capital Management history | Q3 2025 | 3.70M | $7.62M | 0.01% | Reduce |
| Hillhouse Capital (HHLR Advisors) history | Q1 2022 | 2.98M | $3.33M | 0.07% | Hold |
| Fidelity Management & Research (FMR) history | Q3 2025 | 1.45M | $3.00M | 0.00% | Reduce |
| Bank of America Corp history | Q2 2026 | 8.20M | $2.60M | 0.00% | Hold |
| Millennium Management history | Q1 2026 | 3.56M | $1.17M | 0.00% | Add |
| Balyasny Asset Management history | Q4 2025 | 1.28M | $533.49K | 0.00% | New |
| UBS Group AG history | Q2 2026 | 1.45M | $460.35K | 0.00% | Reduce |
| Two Sigma Investments history | Q2 2026 | 1.32M | $419.12K | 0.00% | Add |
| Citadel Advisors history | Q2 2026 | 1.00M | $317.72K | 0.00% | Add |
| Point72 Asset Management history | Q2 2025 | 59.20K | $160.43K | 0.00% | Add |
| Legal & General Investment Management America history | Q1 2022 | 52.18K | $58.00K | 0.00% | Hold |
| Marshall Wace history | Q2 2026 | 179.88K | $57.56K | 0.00% | Reduce |
| Manulife Financial history | Q4 2024 | 16.43K | $57.52K | 0.00% | Add |
| Geode Capital Management history | Q1 2026 | 92.53K | $30.54K | 0.00% | Hold |
| Goldman Sachs Group history | Q2 2026 | 85.18K | $27.06K | 0.00% | New |
| BlackRock Inc history | Q2 2026 | 69.68K | $22.14K | 0.00% | Reduce |
| JPMorgan Chase & Co history | Q2 2026 | 58.53K | $19.42K | 0.00% | New |
| Renaissance Technologies history | Q2 2026 | 52.10K | $16.55K | 0.00% | Add |
| PNC Financial Services history | Q2 2024 | 4.52K | $16.29K | 0.00% | New |
New Positions (Q2 2026)
- Goldman Sachs Group 85.18K sh · $27.06K
- JPMorgan Chase & Co 58.53K sh · $19.42K
- Citigroup Inc 52 sh · $17
Fully Exited (vs previous quarter)
- Millennium Management sold 3.56M sh · $1.17M
- Geode Capital Management sold 92.53K sh · $30.54K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bank of America Corp | 40.84K | 71.28K | 199.65K | 66.88K | 32.73K | 67.53K | 21.18K | 1 | 9.22K | 276 | 78.72K | 84.02K | 217.56K | 2.32K | 438.67K | 438.66K | 438.62K | 25.49K | 8.20M | 8.20M |
| UBS Group AG | 9.95K | 23.31K | — | 40.00K | 167.50K | 128.54K | 96.16K | 2.49K | — | 2.81K | — | — | — | 2.65M | 932.02K | 373.50K | 970.67K | 1.56M | 1.49M | 1.45M |
| Two Sigma Investments | — | — | — | — | — | — | — | 197.76K | 142.60K | 311.06K | 351.73K | 201.78K | 134.31K | 68.73K | 245.21K | 659.16K | 1.09M | 525.12K | 187.84K | 1.32M |
| Citadel Advisors | 4.13M | 4.03M | 3.92M | 3.01M | 3.28M | 3.24M | 3.05M | 1.77M | 2.25M | 349.92K | 149.41K | 537.19K | 260.56K | 495.15K | 454.85K | 922.66K | 3.25M | 748.70K | 454.80K | 1.00M |
| Marshall Wace | — | 98.29K | — | — | — | — | — | — | — | 14.88K | — | 1.14M | 1.03M | 866.32K | 767.74K | 767.74K | 767.74K | — | 686.99K | 179.88K |
| Goldman Sachs Group | — | 712.36K | 715.18K | 717.46K | 709.13K | 2.29M | 2.26M | 1.98M | 2.02M | 2.02M | 2.24M | 2.51M | 2.01M | 2.12M | 2.13M | 3.09M | 2.36M | 28.03K | — | 85.18K |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 14.32K | 273.02K | 274.36K | 455.37K | 444.00K | 312.61K | 302.99K | 69.68K |
| JPMorgan Chase & Co | 3.00K | 12.79K | 13.16K | 4.58K | 12.50K | 145.26K | 427.13K | 304.03K | 132.80K | 19.12K | 38.12K | 365 | 365 | 365 | 365 | — | — | — | — | 58.53K |
| Renaissance Technologies | 398.90K | 220.60K | 283.80K | 608.91K | 1.23M | 1.26M | 915.91K | 1.78M | 1.73M | 1.80M | 1.67M | 1.76M | 1.31M | 1.19M | 1.35M | 1.48M | 590.87K | 194.37K | 48.40K | 52.10K |
| Morgan Stanley | 21.14K | 208.67K | 173.82K | 105.14K | 149.09K | 27.45K | 9.02K | 9.02K | 6.69K | 76.17K | 1.38M | 207.74K | 2.35M | 3.55M | 2.18M | 785.38K | 3.35M | 1.27M | 16.43K | 16.73K |
| Wells Fargo & Co | 3.23K | 230 | 230 | 230 | 730 | 230 | 229 | 5.23K | 230 | 230 | 230 | 230 | 230 | 229 | 1.23K | 230 | 230 | 1.74K | 230 | 231 |
| Citigroup Inc | — | 3.38K | 2.52K | 1.87K | 18.91K | 1.55K | 1.13M | — | — | — | — | — | — | — | — | — | — | 195.81K | — | 52 |
| Fidelity Management & Research (FMR) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 759.10K | 1.48M | 1.45M | — | — | — |
| Alkeon Capital Management | 1.94M | 1.94M | 1.94M | 1.74M | 2.14M | 2.14M | 2.39M | 3.74M | 3.74M | 4.24M | 4.24M | 4.70M | 4.70M | 4.70M | 4.70M | 4.70M | 3.70M | — | — | — |
| Balyasny Asset Management | — | — | — | — | 19.21K | — | — | — | — | — | — | — | — | — | — | — | — | 1.28M | — | — |
| Geode Capital Management | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 96.63K | 92.16K | 92.16K | 92.16K | 92.16K | 92.53K | 92.53K | 92.53K | 92.53K | — |
| Millennium Management | 1.43M | 951.03K | 918.06K | 701.90K | 1.25M | 1.31M | 2.51M | 955.07K | 1.24M | 1.41M | 2.18M | 3.20M | 5.39M | 4.01M | 683.13K | 1.04M | 395.20K | 83.65K | 3.56M | — |
| Janus Henderson Group | — | — | — | — | — | — | — | — | — | — | 5.12M | 7.88M | 12.35M | 17.12M | 22.74M | 17.69M | 16.29M | — | — | — |
| Hillhouse Capital (HHLR Advisors) | 2.98M | 2.98M | 2.98M | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Point72 Asset Management | 9.97M | 10.61M | 11.49M | 10.04M | 9.83M | — | — | — | — | — | 1.90K | — | — | — | 35.82K | 59.20K | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details