Immunocore Holdings plc - Depositary Receipt (Common Stock)
US ˙ NasdaqGS ˙ US45258D1054

SecurityIMCR / Immunocore Holdings plc - Depositary Receipt (Common Stock)
InstitutionAssetmark, Inc
Latest Disclosed Ownership28,387 shares
Latest Disclosed Value $ 855,868
Assetmark, Inc reports 10.38% decrease in ownership of IMCR / Immunocore Holdings plc - Depositary Receipt (Common Stock)

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 28,387 shares of Immunocore Holdings plc - Depositary Receipt (Common Stock) (US:IMCR) valued at $855,868 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 31,676 shares of Immunocore Holdings plc - Depositary Receipt (Common Stock). This represents a change in shares of -10.38% during the quarter. The current value of the position is $813,288 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F IMMUNOCORE HLDGS ADS 45258D105 28,387 -3,289 -10.38 856 -22.20 0.0017
2026-01-23 2025-12-31 13F IMMUNOCORE HLDGS ADS 45258D105 31,676 -2,393 -7.02 1,099 -11.16 0.0022
2025-11-06 2025-09-30 13F IMMUNOCORE HLDGS ADS 45258D105 34,069 -889 -2.54 1,238 12.86 0.0027
2025-08-04 2025-06-30 13F IMMUNOCORE HLDGS ADS 45258D105 34,958 1,248 3.70 1,097 9.60 0.0026
2025-05-06 2025-03-31 13F IMMUNOCORE HLDGS ADS 45258D105 33,710 1,539 4.78 1,000 5.37 0.0027
2025-02-06 2024-12-31 13F IMMUNOCORE HLDGS ADS 45258D105 32,171 1,616 5.29 949 -0.21 0.0026
2024-11-01 2024-09-30 13F IMMUNOCORE HLDGS ADS 45258D105 30,555 1,878 6.55 951 -2.06 0.0027
2024-08-13 2024-06-30 13F IMMUNOCORE HLDGS ADS 45258D105 28,677 7,031 32.48 972 -30.94 0.0030
2024-05-07 2024-03-31 13F IMMUNOCORE HLDGS ADS 45258D105 21,646 3,666 20.39 1,407 14.50 0.0046
2024-02-09 2023-12-31 13F IMMUNOCORE HLDGS ADS 45258D105 17,980 6,969 63.29 1,228 115.06 0.0044
2023-10-27 2023-09-30 13F IMMUNOCORE HLDGS ADS 45258D105 11,011 3,902 54.89 571 34.04 0.0023
2023-08-11 2023-06-30 13F IMMUNOCORE HLDGS PLC ADS ADS 45258D105 7,109 6,223 702.37 426 890.70 0.0017
2023-05-05 2023-03-31 13F IMMUNOCORE HLDGS PLC ADS ADS 45258D105 886 278 45.72 44 26.47 0.0002
2023-02-10 2022-12-31 13F IMMUNOCORE HLDGS ADS 45258D105 608 297 95.50 35 126.67 0.0002
2022-11-01 2022-09-30 13F IMMUNOCORE HLDGS ADS 45258D105 311 92 42.01 15 87.50 0.0001
2022-08-03 2022-06-30 13F IMMUNOCORE HLDGS PLC ADS ADS 45258D105 219 125 132.98 8 166.67 0.0000
2022-05-13 2022-03-31 13F IMMUNOCORE HLDGS PLC ADS ADS 45258D105 94 94 3 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.