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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* BCP Redbird Aggregator L.P. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 06/04/2026	3. Issuer Name and Ticker or Trading Symbol Liftoff Mobile, Inc. [ LFTO ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	83,831,109	I	See Footnotes(1)(2)(3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* BCP Redbird Aggregator L.P. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* BCP VII Holdings Manager L.L.C. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Management Associates VII L.L.C. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* BMA VII L.L.C. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Holdings III L.P. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Holdings III GP L.P. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Holdings III GP Management L.L.C. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Inc. (Last) (First) (Middle) 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Blackstone Group Management L.L.C. (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SCHWARZMAN STEPHEN A (Last) (First) (Middle) C/O BLACKSTONE INC. 345 PARK AVENUE (Street) NEW YORK NY 10154 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Reflects securities of Liftoff Mobile, Inc. (the "Issuer") held directly by BCP Redbird Aggregator L.P. BCP VII Holdings Manager L.L.C. is the general partner of BCP Redbird Aggregator L.P. Blackstone Management Associates VII L.L.C. is the sole member of BCP VII Holdings Manager L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of BMA VII L.L.C. Blackstone Holdings III GP L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

2. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

3. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

	BCP REDBIRD AGGREGATOR L.P., By: BCP VII HOLDINGS MANAGER L.L.C., its GP, By: BLACKSTONE MANAGEMENT ASSOCIATES VII L.L.C., its sole member, By: BMA VII L.L.C., its sole member, By: /s/ Robert Brooks Name: Robert Brooks Title: Authorized Signatory	06/04/2026
	BCP VII HOLDINGS MANAGER L.L.C., By: BLACKSTONE MANAGEMENT ASSOCIATES VII L.L.C., its sole member, By: BMA VII L.L.C., its sole member, By: /s/ Robert Brooks Name: Robert Brooks Title: Authorized Signatory	06/04/2026
	BLACKSTONE MANAGEMENT ASSOCIATES VII L.L.C., By: BMA VII L.L.C., its sole member, By: /s/ Robert Brooks Name: Robert Brooks Title: Authorized Signatory	06/04/2026
	BMA VII L.L.C., By: /s/ Robert Brooks Name: Robert Brooks Title: Authorized Signatory	06/04/2026
	BLACKSTONE HOLDINGS III L.P., By: Blackstone Holdings III GP L.P., its GP, By: BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., its GP, By: /s/ Victoria Portnoy, Name: Victoria Portnoy, Title: Managing Director - Assistant Secretary	06/04/2026
	BLACKSTONE HOLDINGS III GP L.P., By: BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., its general partner, By: /s/ Victoria Portnoy, Name: Victoria Portnoy, Title: Managing Director - Assistant Secretary	06/04/2026
	BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., By: /s/ Victoria Portnoy, Name: Victoria Portnoy, Title: Managing Director - Assistant Secretary	06/04/2026
	BLACKSTONE INC., By: /s/ Victoria Portnoy, Name: Victoria Portnoy, Title: Managing Director - Assistant Secretary	06/04/2026
	BLACKSTONE GROUP MANAGEMENT L.L.C., By: /s/ Victoria Portnoy, Name: Victoria Portnoy, Title: Managing Director - Assistant Secretary	06/04/2026
	/s/ Stephen A. Schwarzman	06/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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