Bioatla (BCAB) investor relations material

Executive summary

• Special Meeting will be held virtually to vote on key proposals impacting capital structure and compliance with Nasdaq listing requirements.

• Stockholders of record as of November 25, 2025, are eligible to vote on the proposals.

• Board recommends voting in favor of all three proposals to support capital access and maintain listing status.

Voting matters and shareholder proposals

• Proposal One seeks approval for the issuance of 20% or more of outstanding common stock under financing agreements, exceeding the Nasdaq Exchange Cap.

• Proposal Two requests approval to amend the Charter to allow a reverse stock split at a ratio between 1-for-5 and 1-for-20, at the board's discretion, before June 30, 2026.

• Proposal Three authorizes adjournment of the meeting to solicit additional proxies if needed.

• Board unanimously recommends voting "FOR" all proposals.

• Stockholder proposals for the 2026 Annual Meeting must be submitted by January 2, 2026, to be included in proxy materials.

Board of directors and corporate governance

• Board retains discretion to determine the timing and ratio of the reverse stock split if approved.

• Directors and executive officers have interests in Proposal Two due to potential equity awards.

• Security ownership table discloses beneficial ownership by directors, officers, and major shareholders as of November 10, 2025.