Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in IMCR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP | 5.7M | $181.7M | +21.6% | 11.257% | 0.03% |
| 2 | RTW INVESTMENTS, LP | 4.9M | $154.6M | 0.0% | 9.580% | 1.32% |
| 3 | FMR LLC | 4.3M | $136.8M | -10.8% | 8.474% | 0.01% |
| 4 | PRIMECAP MANAGEMENT CO/CA/ | 3.6M | $115.5M | -1.5% | 7.157% | 0.07% |
| 5 | Bellevue Group AG | 2.8M | $88.5M | -0.3% | 5.485% | 1.86% |
| 6 | TANG CAPITAL MANAGEMENT LLC | 2.6M | $84.1M | 0.0% | 5.212% | 3.82% |
| 7 | Vestal Point Capital, LP | 1.8M | $57.1M | -34.9% | 3.541% | 1.34% |
| 8 | TWO SIGMA INVESTMENTS, LP | 1.6M | $52.4M | +61.5% | 3.244% | 0.04% |
| 9 | MILLENNIUM MANAGEMENT LLC | 1.6M | $50.7M | +29.1% | 3.142% | 0.02% |
| 10 | ARMISTICE CAPITAL, LLC | 1.4M | $45.3M | +20.2% | 2.809% | 0.55% |
| 11 | Caligan Partners LP | 1.4M | $43.9M | β | 2.717% | 2.06% |
| 12 | Kynam Capital Management, LP | 1.4M | $43.7M | +55.4% | 2.705% | 2.41% |
| 13 | BVF INC/IL | 1.3M | $41.1M | 0.0% | 2.547% | 1.05% |
| 14 | Trails Edge Capital Partners, LP | 1.1M | $33.8M | +55.8% | 2.092% | 5.36% |
| 15 | BlackRock, Inc. | 1.0M | $31.9M | +53.1% | 1.976% | 0.00% |
| 16 | Point72 Asset Management, L.P. | 990K | $31.4M | -10.2% | 1.948% | 0.03% |
| 17 | Jupiter Topco LLC | 709K | $22.5M | β | 1.395% | 0.01% |
| 18 | CITADEL ADVISORS LLC | 652K | $20.7M | +171.3% | 1.283% | 0.00% |
| 19 | Logos Global Management LP | 600K | $19.1M | -60.0% | 1.180% | 0.82% |
| 20 | MARSHALL WACE, LLP | 591K | $18.8M | +227.7% | 1.163% | 0.01% |
| 21 | Hudson Bay Capital Management LP | 590K | $18.7M | -6.8% | 1.161% | 0.05% |
| 22 | BRAIDWELL LP | 521K | $16.6M | β | 1.026% | 0.61% |
| 23 | Jones Hill Capital LP | 513K | $16.3M | β | 1.009% | 3.46% |
| 24 | PRINCIPAL FINANCIAL GROUP INC | 486K | $15.4M | -6.4% | 0.956% | 0.01% |
| 25 | Frazier Life Sciences Management, L.P. | 485K | $15.4M | 0.0% | 0.954% | 0.34% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in IMCR β a direct measure of their conviction.
Filings activity in IMCR during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 133 | 7.6% | 103.73% | +1.15 pp | $1.61B | +5.1% |
| Q1 2026 | 144 | 3.4% | 102.58% | +10.34 pp | $1.53B | 0.2% |
| Q4 2025 | 149 | +16% | 92.24% | 9.56 pp | $1.53B | 1.6% |
| Q3 2025 | 129 | 1.5% | 101.80% | +4.92 pp | $1.56B | +26% |
| Q2 2025 | 131 | +16% | 96.88% | +4.53 pp | $1.23B | +9.9% |
| Q1 2025 | 113 | +0.9% | 92.35% | +0.44 pp | $1.12B | +5.8% |
| Q4 2024 | 112 | 8.9% | 91.91% | +5.17 pp | $1.06B | 6.3% |
| Q3 2024 | 123 | β | 86.74% | β | $1.13B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying IMCR stock.
Based on Q2 2026 13F filings, institutional ownership of Immunocore Holdings plc stands at 103.7%, held across 133 reporting institutions.
WELLINGTON MANAGEMENT GROUP LLP is the largest reported institutional holder of IMCR, with approximately 5,721,945 shares worth $0.18B as of Q2 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of IMCR, including TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC, Point72 Asset Management, L.P., CITADEL ADVISORS LLC.
Our composite Smart Money Score for IMCR is 64 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
24 institutions opened new positions in IMCR during Q2 2026, while 34 fully exited. 73 added to existing positions and 34 trimmed.
IMCR institutional ownership rose by 1.15 percentage points quarter-over-quarter, with a net change of -11 holders.
The top 10 institutions account for 60.2% of all reported 13F value in IMCR, and the top 25 account for 84.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Immunocore Holdings plc (IMCR) Institutional Ownership