An amended beneficial ownership statement was filed on November 6, 2026, disclosing that a group of related Blackstone-affiliated entities, led by Redbird ML Holdco LP, collectively reported beneficial ownership of 83,831,109 shares of Liftoff Mobile, Inc. common stock as of September 30, 2026.

Key Highlights

  • Issuer: Liftoff Mobile, Inc., a mobile advertising technology company headquartered at 900 Middlefield Road, Redwood City, California 94063.
  • Shares reported: Each of the twelve reporting persons listed beneficial ownership of 83,831,109 shares of Liftoff Mobile common stock (par value $0.0001 per share).
  • Ownership percentage: The 83,831,109 shares represent 49.5% of the class, according to the filing.
  • Voting and dispositive power: All reporting persons listed sole voting power and sole dispositive power of 83,831,109 shares, with zero shared voting or dispositive power reported.
  • Triggering event date: The date of event requiring the filing was September 30, 2026.
  • Key reporting persons: The filing was made on behalf of twelve entities and individuals, including Redbird ML Holdco LP, Blackstone Inc., and Stephen A. Schwarzman.
  • Amendment: This filing is designated Amendment No. 1 to a prior statement.

Blackstone Affiliate Group Discloses Concentrated Position in Liftoff Mobile

According to the filing, twelve reporting persons, all affiliated with Blackstone Inc., reported identical beneficial ownership figures for shares of Liftoff Mobile, Inc. common stock (CUSIP 53229X101). The primary holding entity is Redbird ML Holdco LP, a Delaware limited partnership with its address listed care of Blackstone Inc. at 345 Park Avenue, New York, NY 10154. The general partner of that entity, Redbird ML Holdco GP LLC, is also a Delaware-organized entity sharing the same address. BCP Redbird Aggregator L.P. and BCP VII Holdings Manager L.L.C. are also named reporting persons, reflecting the multi-layered structure through which the position is held.

Further up the ownership chain, the filing identifies Blackstone Management Associates VII L.L.C., BMA VII L.L.C., Blackstone Holdings III L.P. (organized in Quebec, Canada), Blackstone Holdings III GP L.P., Blackstone Holdings III GP Management L.L.C., Blackstone Inc., Blackstone Group Management L.L.C., and Stephen A. Schwarzman as additional reporting persons. Each of these entities and the named individual, a United States citizen, reported the same aggregate beneficial ownership of 83,831,109 shares, constituting 49.5% of Liftoff Mobile's outstanding common stock. All twelve reporting persons indicated sole voting power and sole dispositive power over the full 83,831,109 shares, with no shared voting or dispositive power reported by any party.

Liftoff Mobile, Inc. is identified in the filing as the issuer, with its principal executive offices located at 900 Middlefield Road, Redwood City, California 94063. The filing was submitted as Amendment No. 1, indicating a prior statement existed. The event date that required the filing was recorded as September 30, 2026.

What Was Disclosed

This amended beneficial ownership filing reported that a group of twelve Blackstone-affiliated entities and individuals, led by Redbird ML Holdco LP, held 83,831,109 shares of Liftoff Mobile, Inc. common stock, equal to 49.5% of the class, as of September 30, 2026.