UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
Integral Acquisition Corporation 1
(Name of Issuer)
Class A Common Stock, par value $0.0001 per share
(Title of Class of Securities)
45827K200
(CUSIP Number)
November 5, 2021
(Date of event which requires filing of this statement)
Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed:
☐	Rule 13d-1(b)
☒	Rule 13d-1(c)
☐	Rule 13d-1(d)

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	LMR Master Fund Ltd
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Cayman Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			450,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			450,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	450,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	3.9%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	LMR Partners LLP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	United Kingdom
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	PN, IA

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	LMR Partners Limited
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Hong Kong
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO, IA

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	LMR Partners LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	State of Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	OO, IA

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	LMR Partners AG
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Switzerland
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO, IA

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	Ben Levine
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	United Kingdom
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN, HC

CUSIP No. 45827K200

13G

1	NAMES OF REPORTING PERSONS
	Stefan Renold
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Switzerland
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0
		6	SHARED VOTING POWER
			900,000
		7	SOLE DISPOSITIVE POWER
			0
		8	SHARED DISPOSITIVE POWER
			900,000
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	900,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	7.8%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN, HC

Item 1(a).	NAME OF ISSUER:
	The name of the issuer is Integral Acquisition Corporation 1 (the "Issuer").

Item 1(b).	ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
	The Issuer's principal executive offices are located at 667 Madison Avenue, Fifth Floor, New York, NY 10065.

Item 2(a).

NAME OF PERSON FILING:

This statement is filed by:

	(i)	LMR Master Fund Ltd ("LMR Master Fund"), with respect to the shares of Class A Common Stock (as defined in Item 2(d)) held by it;
	(ii)	LMR CCSA Master Fund Ltd ("LMR CCSA Master Fund"), with respect to the shares of Class A Common Stock (as defined in Item 2(d)) held by it;
	(iii)	LMR Partners LLP, LMR Partners Limited, LMR Partners LLC and LMR Partners AG (collectively, the "LMR Investment Managers"), which serve as the investment managers to certain funds, including, without limitation, LMR Master Fund and LMR CCSA Master Fund, with respect to the shares of Class A Common Stock held by LMR Master Fund and LMR CCSA Master Fund; and
	(iv)	Ben Levine and Stefan Renold, who are ultimately in control of the investment and voting decisions of the LMR Investment Managers with respect to the securities held by LMR Master Fund and LMR CCSA Master Fund.

The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons."

Item 2(b).	ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
	The address of the principal business office of each of the Reporting Persons is c/o LMR Partners LLP, 9th Floor, Devonshire House, 1 Mayfair Place, London, W1J 8AJ, United Kingdom.

Item 2(c).	CITIZENSHIP:
	LMR Master Fund is a Cayman Islands exempted company. LMR CCSA Master Fund is a Cayman Islands exempted company. LMR Partners LLP is a United Kingdom limited liability partnership. LMR Partners Limited is a Hong Kong corporation. LMR Partners LLC is a Delaware limited liability company. LMR Partners AG is a Swiss corporation.  Ben Levine is a citizen of the United Kingdom. Stefan Renold is a citizen of Switzerland

Item 2(d).	TITLE OF CLASS OF SECURITIES:
	Class A Common Stock, par value $0.0001 per share ("Class A Common Stock").

Item 4.	OWNERSHIP.
	The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	Each of LMR Master Fund and LMR CCSA Master Fund acquired 450,000 units of the Issuer’s securities (“Units”) in the Issuer’s initial public offering, with each Unit consisting of one share of Class A Common Stock and 1/2 of a warrant to purchase one share of Class A Common Stock. By virtue of holding the Units, each of LMR Master Fund and LMR CCSA Master Fund directly holds 450,000 shares of Class A Common Stock (the “LMR Shares”). The shares of Class A Common Stock held by each of LMR Master Fund and LMR CCSA Master Fund represent approximately 3.9% and the LMR Shares in the aggregate represent approximately 7.8% of the outstanding shares of Class A Common Stock, based on 11,500,000 shares of Class A Common Stock of the Issuer outstanding following the consummation of the Issuer’s initial public offering on November 5, 2021, as reported in the Issuer’s Form 8-K filed with the Securities and Exchange Commission on November 8, 2021. In addition to the LMR Shares, by virtue of holding the Units, each of LMR Master Fund and LMR CCSA Master Fund also directly holds warrants to purchase 225,000 shares of Class A Common Stock (“Warrants”). The Warrants have an exercise price of $11.50 per share of Class A Common Stock and are exercisable 30 days after the completion of the Issuer’s initial business combination, and will expire five years after the completion of the Issuer’s initial business combination or earlier upon redemption or the Issuer’s liquidation
Item 5.	OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
	Not applicable.
Item 6.	OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
	Not applicable.

Item 7.	IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.
	Not applicable.
Item 8.	IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
	Not applicable.

Item 9.	NOTICE OF DISSOLUTION OF GROUP.
	Not applicable.

Item 10.	CERTIFICATION.
	Each of the Reporting Persons hereby makes the following certification:
	By signing below each Reporting Person certifies that, to the best of his or its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.