UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 5)*

Immunocore Holdings plc

(Name of Issuer)

Ordinary Shares, nominal value £0.002

(Title of Class of Securities)

45258D105**

(CUSIP Number)

Michael Gosk
c/o General Atlantic Service Company, L.P.
55 East 52nd Street, 33rd Floor
New York, New York 10055
(212) 715-4000

(Name, Address and Telephone Number of Person Authorized to Receive Notices
and Communications)

September 15, 2023

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

**This CUSIP number applies to Immunocore Holdings plc.’s American Depositary Shares, each representing one ordinary share.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 45258D105

SCHEDULE 13D

Page 2 of 22

1	NAME OF REPORTING PERSON General Atlantic, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 3 of 22

1	NAME OF REPORTING PERSON GAP (Bermuda) L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 4 of 22

1	NAME OF REPORTING PERSON General Atlantic GenPar (Bermuda), L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 5 of 22

1	NAME OF REPORTING PERSON General Atlantic Partners (Bermuda) IV, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 6 of 22

1	NAME OF REPORTING PERSON General Atlantic Partners (Bermuda) EU, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 7 of 22

1	NAME OF REPORTING PERSON GA IMC Holding, Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON OO

CUSIP No. 45258D105

SCHEDULE 13D

Page 8 of 22

1	NAME OF REPORTING PERSON General Atlantic (Lux) S.à r.l.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Luxembourg

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON CO

CUSIP No. 45258D105

SCHEDULE 13D

Page 9 of 22

1	NAME OF REPORTING PERSON GAP Coinvestments III, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON OO

CUSIP No. 45258D105

SCHEDULE 13D

Page 10 of 22

1	NAME OF REPORTING PERSON GAP Coinvestments IV, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON OO

CUSIP No. 45258D105

SCHEDULE 13D

Page 11 of 22

1	NAME OF REPORTING PERSON GAP Coinvestments V, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON OO

CUSIP No. 45258D105

SCHEDULE 13D

Page 12 of 22

1	NAME OF REPORTING PERSON GAP Coinvestments CDA, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 13 of 22

1	NAME OF REPORTING PERSON General Atlantic GenPar (Lux) SCSp
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Luxembourg

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 14 of 22

1	NAME OF REPORTING PERSON General Atlantic Partners (Lux) SCSp
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Luxembourg

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 15 of 22

1	NAME OF REPORTING PERSON GA IMC Holding, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) ☐ (b) ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)	☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda

NUMBER OF

BENEFICIALLY

OWNED BY EACH

REPORTING PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

2,606,684

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

2,606,684

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,606,684
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.3%
14	TYPE OF REPORTING PERSON PN

CUSIP No. 45258D105

SCHEDULE 13D

Page 16 of 22

Item 1. Security and Issuer.

This Amendment No. 5 to Schedule 13D (the “Statement”) is being filed to amend the Statement as originally filed with the Securities and Exchange Commission on July 20, 2022, as amended by Amendment No. 1 dated December 20, 2022, Amendment No. 2 dated January 3, 2023, Amendment No. 3 dated January 17, 2023 and Amendment No. 4 dated June 15, 2023 with respect to the ordinary shares, nominal value £0.002 (the “ordinary shares”) of Immunocore Holdings plc, a company incorporated in England and Wales (the “Company”), whose principal executive offices are located at 92 Park Drive, Milton Park, Abingdon, Oxfordshire OX14 4RY, United Kingdom. Capitalized terms used herein and not otherwise defined have the meanings assigned to such terms in the Statement. Except as otherwise provided herein, each Item of the Statement remains unchanged.

The Company’s American Depositary Shares (the “ADSs”), evidenced by American Depositary Receipts, each representing one ordinary share, are listed on the Nasdaq Global Select Market under the symbol “IMCR”.

Item 2. Identity and Background.

No material change.

Item 3. Source and Amount of Funds or Other Consideration.

No material change.

Item 4. Purpose of Transaction.

Item 4 is hereby supplemented as follows:

On September 15, 2023, GA IMC entered into the 10b5-1 Plan. The description of the 10b5-1 Plan set forth in Item 6 below is incorporated herein by reference in its entirety. The transactions contemplated by the 10b5-1 Plan will result in the disposition of securities of the Company.

Item 5. Interest in Securities of the Issuer.

Item 5 is hereby amended and restated as follows:

(a) The percentages used herein are calculated based upon on an aggregate of 48,941,349 ordinary shares (including ordinary shares in the form of ADSs) reported by the Company to be outstanding as of June 30, 2023 as reflected in the Company’s Unaudited Condensed Consolidated Interim Financial Statements as at and for the three and six months ended June 30, 2023 filed on Form 6-K with the U.S. Securities and Exchange Commission on August 10, 2023.

By virtue of the fact that (i) the GA Funds and the Sponsor Coinvestment Funds contributed the capital to fund the previously disclosed PIPE investment, and share beneficial ownership of the ADSs, ordinary shares and non-voting ordinary shares reported herein, (ii) GA IMC Holding is the general partner of GA IMC, (iii) GAP Bermuda is the general partner of GA GenPar Bermuda, and GenPar Bermuda is the general partner of GAP Bermuda EU, and is the sole shareholder of GA Sarl, (iv) GA Sarl is the general partner of GA GenPar Lux and GA GenPar Lux is the general partner of GAP Lux, and (v) GAP Lux has appointed Carne Global Fund Management (Luxembourg) S.A. (the “AIFM”) as the alternative investment fund manager of GAP Lux pursuant to an alternative investment fund management agreement to undertake all functions required of an external alternative investment fund manager under the Luxembourg law of 12 July 2013 on alternative investment fund managers, as amended from time to time and GAP Lux has also entered into a delegated portfolio management and distribution agreement with the AIFM and General Atlantic Service Company, L.P. (“GASC”) in order to appoint GASC to act as the portfolio manager of GAP Lux (vi) GA LP is the managing member of GAPCO III, GAPCO IV and GAPCO V, the general partner of GAPCO CDA and the sole member of GA IMC Holding, and (viii) the members of the Management Committee control the investment decisions of GA LP, GAP Bermuda and, with respect to GAP Lux,

CUSIP No. 45258D105

SCHEDULE 13D

Page 17 of 22

GASC, the Reporting Persons may be deemed to have the power to vote and direct the disposition of the ADSs, ordinary shares and non-voting ordinary shares owned of record by GA IMC.

As a result, as of the date hereof, each of the Reporting Persons may be deemed to beneficially own an aggregate of 2,606,684 ordinary shares, or approximately 5.3% of the aggregate 48,941,349 ordinary shares as described above.

(b) Each of the Reporting Persons has the shared power to vote or direct the vote and the shared power to dispose or to direct the disposition of the 2,606,684 ordinary shares that may be deemed to be beneficially owned by each of them.

(c) Except as previously reported or as set forth in this Item 5(c), Item 3, or otherwise herein, to the knowledge of the Reporting Persons with respect to the persons named in response to Item 5(a), none of the persons named in response to Item 5(a) has effected any transactions in the ordinary shares during the past 60 days

Between August 14, 2023 and September 18, 2023, GA IMC sold the following ADSs set forth in the table below:

Trade Date	ADSs¹	Price per ADS
August 14, 2023	65,000	$60.66
August 15, 2023	73,579	$60.30
August 16, 2023	25,300	$60.32
August 21, 2023	20,686	$60.22
August 22, 2023	34,789	$60.10
August 23, 2023	29,859	$60.14

(d) No person other than the persons listed is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any securities owned by any member of the group.

(e) Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to the Issuer.

Item 6 is hereby supplemented as follows:

On September 15, 2023, GA IMC entered into a new 10b5-1 plan (the “10b5-1 Plan”) with BTIG, LLC (“BTIG”). Pursuant to the 10b5-1 Plan, BTIG may sell up to 730,000 ADSs on behalf of GA IMC. Under the 10b5-1 Plan, sales of the ADSs may commence on October 16, 2023. The 10b5-1 Plan will terminate on the earlier of November 10, 2023, the date on which 730,000 ADSs have been sold under the 10b5-1 Plan and the date the 10b5-1 Plan is otherwise terminated.

¹Reflects ADSs sold by the Reporting Persons pursuant to the Company’s Prospectus Supplement, dated April 2, 2022, which is part of the Company’s automatic shelf registration statement on Form F-3 (File No. 333-264105) filed with the U.S. Securities and Exchange Commission on April 4, 2022.

CUSIP No. 45258D105

SCHEDULE 13D

Page 18 of 22

Item 7. Materials to be Filed as Exhibits.

Exhibit 1:	Agreement relating to the filing of joint acquisition statements as required by Rule 13d-1(k)(1) under the Exchange Act (previously filed).

Exhibit 2:	Securities Purchase Agreement by and among the Company, Baker Brothers Life Sciences L.P., 667, L.P. and GA IMC, dated July 15, 2022 (previously filed).

Exhibit 3:	Registration Rights Agreement by and among the Company, 667, L.P., Baker Brothers Life Sciences, L.P., GA IMC, RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd., RTW Venture Fund Limited, Rock Springs Capital Master Fund LP, and Four Pines Master Fund LP, dated July 15, 2022 (previously filed).

Exhibit 4:	Shareholders’ Agreement relating to Immunocore Holdings Limited by and among the Series C Investors, the Series B Investors, the Series A Investors and the Qualifying Ordinary Shareholders and Immunocore Holdings Limited, dated January 22, 2021 (previously filed).

CUSIP No. 45258D105

SCHEDULE 13D

Page 19 of 22

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated as of September 18, 2023

GENERAL ATLANTIC, L.P.

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GAP (BERMUDA) L.P.

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GENERAL ATLANTIC GENPAR (BERMUDA), L.P.

By:	GAP (BERMUDA) L.P., its general partner

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

CUSIP No. 45258D105

SCHEDULE 13D

Page 20 of 22

GENERAL ATLANTIC PARTNERS (BERMUDA) IV, L.P.

By:	GENERAL ATLANTIC GENPAR (BERMUDA), L.P., its general partner

By:	GAP (BERMUDA), L.P., its general partner

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GENERAL ATLANTIC PARTNERS (BERMUDA) EU, L.P.

By:	GENERAL ATLANTIC GENPAR (BERMUDA), L.P., its general partner

By:	GAP (BERMUDA), L.P., its general partner

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GA IMC HOLDING, LTD.

By:	GAP (BERMUDA) L.P., its managing member

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GENERAL ATLANTIC (LUX) S.À.R.L.

By:	/s/ Ingrid van der Hoorn
	Name:	Ingrid van der Hoorn
	Title:	Manager A

By:	/s/ Gregor Dalrymple
	Name:	Gregor Dalrymple
	Title:	Manager B

CUSIP No. 45258D105

SCHEDULE 13D

Page 21 of 22

GAP COINVESTMENTS III, LLC

By:	GENERAL ATLANTIC, L.P., its managing member

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GAP COINVESTMENTS IV, LLC

By:	GENERAL ATLANTIC, L.P., its managing member

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GAP COINVESTMENTS V, LLC

By:	GENERAL ATLANTIC, L.P., its managing member

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

GAP COINVESTMENTS CDA, L.P.

By:	GENERAL ATLANTIC, L.P., its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

CUSIP No. 45258D105

SCHEDULE 13D

Page 22 of 22

GENERAL ATLANTIC GENPAR (LUX) SCSp

By:	GENERAL ATLANTIC (LUX) S.À R.L., its general partner

By:	/s/ Ingrid van der Hoorn
	Name:	Ingrid van der Hoorn
	Title:	Manager A

By:	/s/ Gregor Dalrymple
	Name: Title:	Gregor Dalrymple Manager B

GENERAL ATLANTIC PARTNERS (LUX), SCSp

By:	GENERAL ATLANTIC GENPAR (LUX) SCSp, its general partner

By:	GENERAL ATLANTIC (LUX) S.À.R.L., its general partner

By:	/s/ Ingrid van der Hoorn
	Name: Title:	Ingrid van der Hoorn Manager A

By:	/s/ Gregor Dalrymple
	Name:	Gregor Dalrymple
	Title:	Manager B

GA IMC HOLDING, L.P.

By:	GA IMC HOLDING, LTD., its general partner

By:	GAP (BERMUDA) L.P., its managing member

By:	GAP (BERMUDA) GP LIMITED, its general partner

By:	/s/ Michael Gosk
	Name:	Michael Gosk
	Title:	Managing Director

SCHEDULE A

Members of the Management Committee (as of the date hereof)

Name	Address	Citizenship
William E. Ford (Chief Executive Officer)	55 East 52nd Street 33rd Floor New York, New York 10055	United States
Gabriel Caillaux	23 Savile Row London W1S 2ET United Kingdom	France
Andrew Crawford	55 East 52nd Street 33rd Floor New York, New York 10055	United States
Martín Escobari	55 East 52nd Street 33rd Floor New York, New York 10055	Bolivia and Brazil
Anton J. Levy	55 East 52nd Street 33rd Floor New York, New York 10055	United States
Sandeep Naik	Asia Square Tower 1 8 Marina View, #41-04 Singapore 018960	United States
Graves Tompkins	55 East 52nd Street 33rd Floor New York, New York 10055	United States
N. Robbert Vorhoff	55 East 52nd Street 33rd Floor New York, New York 10055	United States
Eric Zhang	Suite 5704-5706, 57F Two IFC, 8 Finance Street Central, Hong Kong, China	Hong Kong SAR
Lance Uggla	23 Savile Row London W1S 2ET United Kingdom	United Kingdom
Tripp Smith	55 East 52nd Street 33rd Floor New York, New York 10055	United States