UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

Concord Acquisition Corp.

(Name of Issuer)

Class A Common Stock, $0.0001 par value per share

(Title of Class of Securities)

206071102

(CUSIP Number)

December 31, 2021

Date of Event Which Requires Filing of this Statement

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☒ Rule 13d-1(c)

☐ Rule 13d-1(d)

* 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 the disclosures provided in a prior cover page.

The information required in 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. 206071102

1	Name of Reporting Person: MFN Partners, LP I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON PN

2

CUSIP No. 206071102

1	Names of Reporting Person: MFN Partners GP, LLC I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON OO

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CUSIP No. 206071102

1	Names of Reporting Person: MFN Partners Management, LP I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON IA, PN

4

CUSIP No. 206071102

1	Names of Reporting Person: MFN Partners Management, LLC I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON OO

5

CUSIP No. 206071102

1	Names of Reporting Person: Michael F. DeMichele I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization United States

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON IN

6

CUSIP No. 206071102

1	Names of Reporting Person: Farhad Nanji I.R.S. Identification No. of above Person (entities only) (voluntary)
2	Check the Appropriate Box if a Member of a Group (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	Citizenship or Place of Organization Canada

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 0
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED 0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0
12	TYPE OF REPORTING PERSON IN

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CUSIP No. 206071102

AMENDMENT NO. 1 TO SCHEDULE 13G (FINAL AMENDMENT)

Reference is hereby made to the statement on Schedule 13G filed with the Securities and Exchange Commission on behalf of the Reporting Persons with respect to the Class A Common Stock of the Issuer on July 21, 2021 (the “Schedule 13G”). Terms defined in the Schedule 13G are used herein as so defined.

The following items of the Schedule 13G are hereby amended and restated as follows:

Item 4. Ownership

The information requested in Item 4 is incorporated herein by reference to the cover pages to this Amendment No. 1 to Schedule 13G.

Item 5. Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that the Reporting Persons have ceased to be the beneficial owners of more than five percent of the Class A Common Stock, check the following: [X]

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CUSIP No. 206071102

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: February 9, 2022

MFN PARTNERS, LP
By:	/s/ Jonathan Reisman
Name: Jonathan Reisman
Title: Authorized Person
MFN PARTNERS GP, LLC
By:	/s/ Jonathan Reisman
Name: Jonathan Reisman
Title: Authorized Person
MFN PARTNERS MANAGEMENT, LP
By:	/s/ Jonathan Reisman
Name: Jonathan Reisman
Title: Authorized Person
MFN PARTNERS MANAGEMENT, LLC
By:	/s/ Jonathan Reisman
Name: Jonathan Reisman
Title: Authorized Person
FARHAD NANJI
/s/ Farhad Nanji
Farhad Nanji, individually
MICHAEL F. DEMICHELE
/s/ Michael F. DeMichele
Michael F. DeMichele, individually

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