Security record
IMCR
Immunocore Holdings plc · Healthcare · Biotechnology
48Tracked holders
-6Δ holders
24.44MShares held
$775.90MReported value
+2New positions
−8Exits
Momentum inputs (comparable managers):
holder breadth -11.1% ·
share flow +9.0% ·
net new positions -12.5%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 48 | -6 | 24.44M | $775.90M | +2 | −8 |
| Q1 2026 | 56 | -2 | 23.02M | $694.09M | +5 | −7 |
| Q4 2025 | 57 | +3 | 20.75M | $720.20M | +3 | — |
| Q3 2025 | 16 | 0 | 17.02M | $618.35M | — | — |
| Q2 2025 | 13 | 0 | 16.30M | $511.65M | — | — |
| Q1 2025 | 11 | 0 | 12.21M | $362.20M | — | — |
| Q4 2024 | 11 | +1 | 13.15M | $388.05M | +1 | — |
| Q3 2024 | 9 | -1 | 13.52M | $420.95M | — | −1 |
| Q2 2024 | 10 | — | 13.38M | $453.58M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 2 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 3 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 4 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 5 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 6 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 7 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 8 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 9 | Wellington Management ✦ | 5.72M | +21.6% | $181.67M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 10 | Fidelity (FMR) ✦ | 4.31M | -10.8% | $136.76M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 11 | Fidelity (FMR) ✦ | 4.31M | -10.8% | $136.76M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | Fidelity (FMR) ✦ | 4.31M | -10.8% | $136.76M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 13 | PRIMECAP Management ✦ | 3.64M | -1.5% | $115.51M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 14 | Two Sigma Investments ✦ | 1.65M | +61.5% | $52.36M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 15 | Millennium Management ✦ | 1.60M | +29.1% | $50.71M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 1.00M | +53.1% | $31.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 25 | Point72 Asset Management ✦ | 990.28K | -10.2% | $31.44M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 26 | T. Rowe Price ✦ | 831.07K | -9.6% | $26.39M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 27 | T. Rowe Price ✦ | 831.07K | -9.6% | $26.39M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 28 | T. Rowe Price ✦ | 831.07K | -9.6% | $26.39M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 29 | Marshall Wace ✦ | 590.94K | +227.7% | $18.76M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 30 | Marshall Wace ✦ | 590.94K | +227.7% | $18.76M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 31 | Marshall Wace ✦ | 590.94K | +227.7% | $18.76M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 32 | Citadel Advisors ✦ | 566.76K | +146.0% | $17.99M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 33 | Citadel Advisors ✦ | 566.76K | +146.0% | $17.99M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 34 | Principal Financial Group Inc | 485.79K | -6.4% | $15.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 35 | Massachusetts Financial Services Co… | 407.22K | 0.0% | $12.93M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | D. E. Shaw & Co. ✦ | 405.12K | +20.9% | $12.86M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Legal & General Group Plc | 299.67K | +91.9% | $9.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Jane Street Group, Llc | 233.35K | +14.2% | $7.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Jane Street Group, Llc | 233.35K | +14.2% | $7.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Qube Research & Technologies Ltd | 223.12K | New | $7.08M | 0.0% | New | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 187.85K | -42.0% | $5.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 47 | Goldman Sachs Group ✦ | 137.33K | +14.9% | $4.36M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 48 | Arrowstreet Capital ✦ | 134.16K | New | $4.26M | 0.0% | New | 1 | SEC ↗ |
| 49 | Bank Of America Corp /De/ | 116.14K | -43.9% | $3.69M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Hrt Financial Lp | 106.19K | +364.5% | $3.37M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Hrt Financial Lp | 106.19K | +364.5% | $3.37M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Td Asset Management Inc | 103.56K | -23.8% | $3.29M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Renaissance Technologies ✦ | 102.40K | -37.6% | $3.25M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 54 | State Street Global Advisors ✦ (passive) | 98.23K | +0.3% | $3.12M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 55 | State Street Global Advisors ✦ (passive) | 98.23K | +0.3% | $3.12M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 56 | BNP Paribas Asset Management… | 90.95K | -4.2% | $2.89M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Manufacturers Life Insurance… | 67.74K | -11.5% | $2.15M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Geode Capital Management ✦ (passive) | 45.97K | +7.2% | $1.46M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 59 | Sei Investments Co | 39.21K | -36.0% | $1.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Sei Investments Co | 39.21K | -36.0% | $1.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 61 | Bridgewater Associates ✦ | 36.71K | +93.9% | $1.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Susquehanna International Group, Llp | 34.17K | +296.3% | $1.08M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | New York State Common Retirement… | 33.98K | -83.9% | $1.08M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Tidal Investments LLC | 30.85K | +0.7% | $979,456 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Barclays Plc | 29.52K | -4.5% | $937,165 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Citigroup Inc | 21.51K | +376.3% | $683,070 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Citigroup Inc | 21.51K | +376.3% | $683,070 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Bnp Paribas Financial Markets | 19.00K | +12.2% | $603,218 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | UBS Group AG | 13.10K | -68.9% | $415,957 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | UBS Group AG | 13.10K | -68.9% | $415,957 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Squarepoint Ops LLC | 11.75K | -23.9% | $372,936 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Wells Fargo & Company/Mn | 11.02K | -85.4% | $349,949 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Wells Fargo & Company/Mn | 11.02K | -85.4% | $349,949 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Rhumbline Advisers | 3.54K | +14.3% | $112,420 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | JPMorgan Chase ✦ | 3.42K | -3.0% | $103,885 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | JPMorgan Chase ✦ | 3.42K | -3.0% | $103,885 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | JPMorgan Chase ✦ | 3.42K | -3.0% | $103,885 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 78 | JPMorgan Chase ✦ | 3.42K | -3.0% | $103,885 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 79 | Assetmark, Inc | 3.21K | -88.7% | $102,013 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Group One Trading Llc | 2.02K | +1919.0% | $64,103 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | Mirae Asset Global Investments Co.… | 1.99K | -13.1% | $63,151 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Osaic Holdings, Inc. | 860 | -43.6% | $27,304 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Osaic Holdings, Inc. | 860 | -43.6% | $27,304 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | UBS AM, a distinct business unit of… | 185 | 0.0% | $5,874 | 0.0% | Held | 2 | SEC ↗ |
| 85 | Royal Bank Of Canada | 30 | -99.9% | $1,000 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 86 | Russell Investments Group, Ltd. | 30 | 0.0% | $953 | 0.0% | Held | 3 | SEC ↗ |
| 87 | Russell Investments Group, Ltd. | 30 | 0.0% | $953 | 0.0% | Held | 3 | SEC ↗ |
| 88 | Russell Investments Group, Ltd. | 30 | 0.0% | $953 | 0.0% | Held | 3 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 30 | 0.0% | $953 | 0.0% | Held | 3 | SEC ↗ |
| 90 | Russell Investments Group, Ltd. | 30 | 0.0% | $953 | 0.0% | Held | 3 | SEC ↗ |
| 91 | Rockefeller Capital Management L.P. | 8 | 0.0% | $254 | 0.0% | Held | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Qube Research & Technologies… | $7.08M | 0.0% |
| Arrowstreet Capital | $4.26M | 0.0% |
Exited
| Aberdeen Group plc | $3.52M | was 0.0% |
| Balyasny Asset Management L.P. | $3.43M | was 0.0% |
| Envestnet Asset Management Inc | $1.71M | was 0.0% |
| Schroder Investment… | $1.26M | was 0.0% |
| Stifel Financial Corp | $338,349 | was 0.0% |
| Deutsche Bank Ag\ | $60,963 | was 0.0% |
| Simplex Trading, Llc | $43,747 | was 0.0% |
| Us Bancorp \De\ | $7,960 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 141 holders, 52.39M shares, $1.48B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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