Blackstone entities file initial Liftoff ownership

Liftoff Mobile, Inc. filed an initial Form 3 reporting that investment entities affiliated with Blackstone Inc. are indirect 10% owners of its common stock.

Rhea-AI Filing Summary

Liftoff Mobile, Inc. filed an initial Form 3 reporting that investment entities affiliated with Blackstone Inc. are indirect 10% owners of its common stock. The filing shows 83,831,109 shares of common stock held indirectly, with the securities held directly by BCP Redbird Aggregator L.P. and attributed up a chain of related Blackstone-managed entities. The reporting persons state that, other than where they directly hold securities, they disclaim beneficial ownership except to the extent of their pecuniary interest.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider BCP Redbird Aggregator L.P., BCP VII Holdings Manager L.L.C., Blackstone Management Associates VII L.L.C., BMA VII L.L.C., Blackstone Holdings III L.P., Blackstone Holdings III GP L.P., Blackstone Holdings III GP Management L.L.C., Blackstone Inc., Blackstone Group Management L.L.C., SCHWARZMAN STEPHEN A

Role 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 83,831,109 shares (Indirect, See Footnotes)

Footnotes (3)

1. F1. 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. F2. 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. F3. 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.

Key Figures

Indirect common stock holding: 83,831,109 shares

1 metrics

Indirect common stock holding 83,831,109 shares Total Liftoff Mobile common shares following reported position

Key Terms

beneficial ownership, pecuniary interest, indirect ownership, Series II preferred stock, +1 more

5 terms

beneficial ownership financial

"disclaims beneficial ownership of the securities held by the other Reporting Persons"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of such Reporting Person's pecuniary interest therein"

indirect ownership financial

"Reflects securities of Liftoff Mobile, Inc. ... held directly by BCP Redbird Aggregator L.P."

Series II preferred stock financial

"The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C."

Section 16 regulatory

"for purposes of Section 16 or for any other purpose"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Blackstone’s Form 3 filing mean for BX and Liftoff Mobile (LFTO)?

The Form 3 shows Blackstone-affiliated entities as 10% owners of Liftoff Mobile common stock. It records existing indirect holdings of 83,831,109 shares, establishing their status as significant shareholders without disclosing any new purchase or sale transactions.

How many Liftoff Mobile (LFTO) shares are reported in the Blackstone Form 3?

The filing reports 83,831,109 shares of Liftoff Mobile common stock held indirectly. These securities are held directly by BCP Redbird Aggregator L.P., with ownership attributed through a chain of related entities affiliated with Blackstone Inc. and its management structure.

Which Blackstone-related entities are listed as reporting persons in the Liftoff Mobile Form 3?

Reporting persons include BCP Redbird Aggregator L.P., BCP VII Holdings Manager L.L.C., Blackstone Management Associates VII L.L.C., BMA VII L.L.C., several Blackstone Holdings III entities, Blackstone Inc., Blackstone Group Management L.L.C., and Stephen A. Schwarzman as Blackstone’s founder and controlling person.

Do Blackstone entities claim full beneficial ownership of all LFTO shares reported?

No, each reporting person, except where it directly holds securities, disclaims beneficial ownership of securities held by others. They state they only recognize beneficial ownership to the extent of their pecuniary interest, consistent with Rule 16a-1(a)(4) under the Exchange Act.

Who directly holds the Liftoff Mobile shares in the Blackstone ownership chain?

The 83,831,109 Liftoff Mobile common shares are held directly by BCP Redbird Aggregator L.P. The filing explains that various Blackstone-managed entities serve as general partners, managing members, or parents, ultimately linking these holdings to Blackstone Inc. and its senior management structure.

Does the Blackstone Form 3 for LFTO show any recent stock transactions?

No, the Form 3 is an initial statement of beneficial ownership and shows a holding entry only. It lists 83,831,109 shares following the reported position, with no buy, sell, exercise, or gift transactions indicated in the transaction summary.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/04/2026 - 04:30 PM EDT Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/04/2026

3. Issuer Name and Ticker or Trading Symbol
Liftoff Mobile, Inc. [ LFTO ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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 NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)