GHRS — GH RESEARCH PLC
As of Q2 2026, 15 SEC-registered investment managers reported holding GHRS (GH RESEARCH PLC) in their latest 13F filings, with a combined reported value of $206.89M across 7.70M shares. That is +5.9% by share count (+429.78K shares) versus the previous quarter, while reported value moved +102.5%. Ownership is concentrated: the five largest holders account for 96.2% of reported value and the top ten for 99.1%.
Compared with the prior quarter, 3 opened new positions, 5 added to existing stakes, 5 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
GHRS 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.
Q2 2026 — 15 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 5.98M | $160.66M | 0.01% | Add |
| BlackRock Inc history | 480.29K | $12.91M | 0.00% | Add |
| UBS Group AG history | 477.41K | $12.83M | 0.01% | Add |
| Millennium Management history | 323.40K | $8.69M | 0.00% | Reduce |
| Goldman Sachs Group history | 148.67K | $4.00M | 0.00% | Add |
| Morgan Stanley history | 52.22K | $1.40M | 0.00% | Add |
| Point72 Asset Management history | 50.88K | $1.37M | 0.01% | New |
| Marshall Wace history | 46.70K | $1.26M | 0.00% | Reduce |
| Geode Capital Management history | 40.48K | $1.09M | 0.00% | Hold |
| Northern Trust Corp history | 31.84K | $855.97K | 0.00% | Reduce |
| D. E. Shaw & Co history | 25.34K | $681.27K | 0.00% | New |
| JPMorgan Chase & Co history | 18.78K | $534.99K | 0.00% | New |
| Citadel Advisors history | 19.80K | $532.22K | 0.00% | Reduce |
| Citigroup Inc history | 1.61K | $43.38K | 0.00% | Reduce |
| Wells Fargo & Co history | 1.25K | $33.60K | 0.00% | Hold |
Q1 2026 — 13 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 5.14M | $72.21M | 0.00% | Hold |
| Millennium Management history | 937.90K | $13.19M | 0.01% | Add |
| BlackRock Inc history | 455.62K | $6.41M | 0.00% | Add |
| UBS Group AG history | 412.42K | $5.80M | 0.00% | Add |
| Marshall Wace history | 91.11K | $1.28M | 0.00% | Reduce |
| Citadel Advisors history | 65.46K | $920.42K | 0.00% | Add |
| Goldman Sachs Group history | 44.80K | $629.82K | 0.00% | Reduce |
| Geode Capital Management history | 40.48K | $569.19K | 0.00% | Add |
| Northern Trust Corp history | 32.69K | $459.55K | 0.00% | Hold |
| Morgan Stanley history | 25.83K | $363.17K | 0.00% | Reduce |
| Renaissance Technologies history | 20.61K | $289.83K | 0.00% | New |
| Citigroup Inc history | 1.73K | $24.37K | 0.00% | Reduce |
| Wells Fargo & Co history | 1.25K | $17.57K | 0.00% | Hold |
Q4 2025 — 14 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 5.14M | $65.23M | 0.00% | Reduce |
| BlackRock Inc history | 434.40K | $5.52M | 0.00% | Add |
| UBS Group AG history | 363.38K | $4.61M | 0.00% | Reduce |
| Millennium Management history | 295.93K | $3.76M | 0.00% | Reduce |
| Marshall Wace history | 240.76K | $3.06M | 0.00% | Add |
| Goldman Sachs Group history | 80.99K | $1.03M | 0.00% | Add |
| Morgan Stanley history | 51.40K | $652.83K | 0.00% | Add |
| Citadel Advisors history | 38.56K | $489.69K | 0.00% | Reduce |
| Geode Capital Management history | 35.65K | $452.69K | 0.00% | Hold |
| Northern Trust Corp history | 32.83K | $416.92K | 0.00% | Hold |
| JPMorgan Chase & Co history | 18.88K | $239.79K | 0.00% | Add |
| Bank of America Corp history | 4.45K | $56.52K | 0.00% | Add |
| Citigroup Inc history | 4.40K | $55.93K | 0.00% | Add |
| Wells Fargo & Co history | 1.25K | $15.88K | 0.00% | Hold |
Q3 2025 — 15 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 5.33M | $76.18M | 0.00% | Add |
| Millennium Management history | 863.60K | $12.35M | 0.01% | Add |
| UBS Group AG history | 511.46K | $7.31M | 0.00% | Add |
| Marshall Wace history | 169.50K | $2.42M | 0.00% | New |
| Citadel Advisors history | 94.40K | $1.35M | 0.00% | New |
| Point72 Asset Management history | 76.96K | $1.10M | 0.00% | New |
| BlackRock Inc history | 57.86K | $827.38K | 0.00% | Reduce |
| Geode Capital Management history | 35.65K | $509.72K | 0.00% | Add |
| Northern Trust Corp history | 32.97K | $471.51K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 13.90K | $198.77K | 0.00% | Add |
| Goldman Sachs Group history | 11.07K | $158.37K | 0.00% | New |
| Morgan Stanley history | 4.24K | $60.66K | 0.00% | Reduce |
| Wells Fargo & Co history | 1.25K | $17.88K | 0.00% | Hold |
| Bank of America Corp history | 275 | $3.93K | 0.00% | Add |
| Citigroup Inc history | 31 | $443 | 0.00% | New |
Q2 2025 — 14 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 5.09M | $62.07M | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 5.09M | $62.07M | 0.00% | Add |
| UBS Group AG history | 458.58K | $5.59M | 0.00% | Add |
| Morgan Stanley history | 281.00K | $3.43M | 0.00% | Add |
| Morgan Stanley history | 281.00K | $3.43M | 0.00% | Add |
| Millennium Management history | 203.65K | $2.48M | 0.00% | New |
| BlackRock Inc history | 64.75K | $789.24K | 0.00% | Add |
| BlackRock Inc history | 64.75K | $789.24K | 0.00% | Add |
| Northern Trust Corp history | 38.98K | $475.13K | 0.00% | Reduce |
| Geode Capital Management history | 34.63K | $422.18K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 6.50K | $79.23K | 0.00% | New |
| JPMorgan Chase & Co history | 6.50K | $79.23K | 0.00% | New |
| Wells Fargo & Co history | 1.25K | $15.24K | 0.00% | Hold |
| Bank of America Corp history | 223 | $2.72K | 0.00% | Add |
Q1 2025 — 13 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 4.25M | $46.87M | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 4.25M | $46.87M | 0.00% | Add |
| UBS Group AG history | 447.93K | $4.94M | 0.00% | Add |
| Morgan Stanley history | 277.25K | $3.06M | 0.00% | Add |
| Morgan Stanley history | 277.25K | $3.06M | 0.00% | Add |
| Geode Capital Management history | 67.22K | $741.38K | 0.00% | Reduce |
| BlackRock Inc history | 43.97K | $485.00K | 0.00% | Reduce |
| BlackRock Inc history | 43.97K | $485.00K | 0.00% | Reduce |
| Northern Trust Corp history | 39.33K | $433.82K | 0.00% | Reduce |
| Citadel Advisors history | 23.39K | $257.95K | 0.00% | New |
| Citadel Advisors history | 23.39K | $257.95K | 0.00% | New |
| Wells Fargo & Co history | 1.25K | $13.79K | 0.00% | Hold |
| Bank of America Corp history | 153 | $1.69K | 0.00% | Reduce |
New Positions (Q2 2026)
- Point72 Asset Management 50.88K sh · $1.37M
- D. E. Shaw & Co 25.34K sh · $681.27K
- JPMorgan Chase & Co 18.78K sh · $534.99K
Fully Exited (vs previous quarter)
- Renaissance Technologies sold 20.61K sh · $289.83K
Fund Position History — shares by quarter (top 18 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 | Q2 2022 | Q1 2022 | Q4 2021 | Q3 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fidelity Management & Research (FMR) | 5.98M | 5.14M | 5.14M | 5.33M | 5.09M | 4.25M | 2.49M | 2.75M | 2.97M | 3.02M | 3.14M | 3.24M | 4.13M | 4.28M | 4.46M | 5.01M | 4.94M | 5.20M | 5.09M | 2.28M |
| BlackRock Inc | 480.29K | 455.62K | 434.40K | 57.86K | 64.75K | 43.97K | 47.21K | 64.89K | — | — | — | — | — | — | — | — | — | — | — | — |
| UBS Group AG | 477.41K | 412.42K | 363.38K | 511.46K | 458.58K | 447.93K | 21.23K | 646 | — | 209 | — | — | — | — | — | — | — | 100 | — | — |
| Millennium Management | 323.40K | 937.90K | 295.93K | 863.60K | 203.65K | — | 20.76K | — | — | 51.81K | 92.11K | 107.29K | 26.39K | 28.70K | 69.34K | 10.11K | — | — | 27.14K | — |
| Goldman Sachs Group | 148.67K | 44.80K | 80.99K | 11.07K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Morgan Stanley | 52.22K | 25.83K | 51.40K | 4.24K | 281.00K | 277.25K | 265.47K | 258.62K | 291.94K | 281.31K | 322.23K | 307.21K | 393.74K | 391.86K | 524.12K | 489.34K | 478.62K | 421.45K | 444.46K | 424.26K |
| Point72 Asset Management | 50.88K | — | — | 76.96K | — | — | — | — | — | — | — | — | — | — | 24.60K | 202.60K | 231.30K | 272.50K | 311.00K | — |
| Marshall Wace | 46.70K | 91.11K | 240.76K | 169.50K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Geode Capital Management | 40.48K | 40.48K | 35.65K | 35.65K | 34.63K | 67.22K | 72.51K | 69.42K | 69.61K | 68.78K | 62.10K | 57.18K | 50.03K | 49.82K | 48.08K | 46.11K | 45.30K | 44.98K | 44.63K | 27.20K |
| Northern Trust Corp | 31.84K | 32.69K | 32.83K | 32.97K | 38.98K | 39.33K | 40.83K | 32.19K | — | — | 10.14K | — | — | — | — | — | — | — | — | — |
| D. E. Shaw & Co | 25.34K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| JPMorgan Chase & Co | 18.78K | — | 18.88K | 13.90K | 6.50K | — | — | — | — | — | 600 | — | — | — | — | — | — | — | — | — |
| Citadel Advisors | 19.80K | 65.46K | 38.56K | 94.40K | — | 23.39K | — | 219.72K | 160.99K | 14.51K | 97.23K | 167.92K | 144.57K | 144.56K | 1.28M | 1.29M | 1.30M | 1.28M | 1.28M | 1.31M |
| Citigroup Inc | 1.61K | 1.73K | 4.40K | 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Wells Fargo & Co | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | 1.25K | — | — | — | — | — | — | — | — | — | — |
| Renaissance Technologies | — | 20.61K | — | — | — | — | 30.30K | 30.40K | 30.40K | 30.40K | 50.90K | 44.40K | 25.50K | 10.80K | — | — | — | — | — | — |
| Bank of America Corp | — | — | 4.45K | 275 | 223 | 153 | 169 | 28.10K | 9.05K | 16.41K | 16.30K | 16.30K | 2.77K | 2.77K | 2.77K | 20 | 20 | 6.38K | 20 | 22 |
| Two Sigma Investments | — | — | — | — | — | — | 16.76K | — | — | — | 14.48K | — | — | — | — | — | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
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