Immunocore Holdings plc
IMCR- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001671927
No open-market purchases or sales by Immunocore Holdings plc insiders were filed in the last 90 days; 135 institutions reported holding it in 13F filings for Q2 2026, worth $1.65B in total; no superinvestor holds it.
Holders of 5% or more of IMCR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Immunocore Holdings plc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 13G/A | 10.20%5.13M shares | +1.10 ppfrom 9.10% | May 12, 20253 filings | Aug 5, 2025 | SEC |
| Jallal Bahija | 13G | 8.20%4.49M shares | New | Feb 14, 20251 filing | Feb 14, 2025 | SEC |
| Primecap Management Co | 13G/A | 7.51%3.77M shares | +2.18 ppfrom 5.33% | Feb 13, 20252 filings | Aug 14, 2025 | SEC |
| T. Rowe Price Investment Management, Inc. | 13G/A | 6.00%3.04M shares | −5.80 ppfrom 11.80% | May 14, 20253 filings | Mar 6, 2026 | SEC |
| Bellevue Group AG | 13G | 5.60%2.80M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Tang Capital Management LLC | 13G | 5.20%2.61M shares | New | Oct 24, 20251 filing | Oct 24, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
12 Schedule 13D and 13G filings on Immunocore Holdings plc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 6, 202612:57 PM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 6.00%3.04M shares | −5.80 ppfrom 11.80% | Feb 28, 2026 | SEC |
| Feb 17, 202610:28 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 11.80%5.96M shares | −2.30 ppfrom 14.10% | Dec 31, 2025 | SEC |
| Nov 14, 20258:00 PM ET | Bellevue Group AGand 1 other | 13G | 5.60%2.80M shares | New | Aug 20, 2025 | SEC |
| Oct 24, 20254:16 PM ET | Tang Capital Management LLCand 5 others | 13G | 5.20%2.61M shares | New | Oct 17, 2025 | SEC |
| Oct 3, 20254:16 PM ET | Eli Lilly & Coand 1 other | 13G/A | 0.00%0 shares | –Below 5% | Sep 30, 2025 | SEC |
| Aug 14, 20251:27 PM ET | Primecap Management Co | 13G/A | 7.51%3.77M shares | +2.18 ppfrom 5.33% | Jun 30, 2025 | SEC |
| Aug 5, 20251:44 PM ET | Wellington Management Group LLPand 3 others | 13G/A | 10.20%5.13M shares | +1.10 ppfrom 9.10% | Jul 31, 2025 | SEC |
| Aug 5, 20251:34 PM ET | Wellington Management Group LLPand 3 others | 13G/A | 9.10%4.52M shares | −3.90 ppfrom 13.00% | Jun 30, 2025 | SEC |
| May 14, 202510:47 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 14.10%7.05M shares | – | Mar 31, 2025 | SEC |
| May 12, 202510:44 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 13.00%6.43M shares | – | Mar 31, 2025 | SEC |
| Feb 14, 20254:01 PM ET | Jallal Bahija | 13G | 8.20%4.49M shares | New | Dec 31, 2024 | SEC |
| Feb 13, 20256:26 PM ET | Primecap Management Co | 13G | 5.33%2.67M shares | New | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Immunocore Holdings plc shares.
No Form 144 notices for Immunocore Holdings plc are on file.