OS Therapies (OSTX) Proxy Filing summary

Executive summary

• A Special Meeting of Stockholders was convened on March 31, 2025, but was adjourned due to lack of quorum and will reconvene on April 9, 2025 at the same location.

• The record date for voting eligibility remains February 12, 2025, and stockholders are encouraged to vote by April 8, 2025.

• No changes have been made to the proposals to be voted on at the reconvened Special Meeting.

Voting matters and shareholder proposals

• Proposals to be voted on at the Special Meeting remain unchanged from those described in the proxy statement filed on February 28, 2025.

• Stockholders may vote in person or by proxy, and previously submitted proxies remain valid unless revoked.

• The company continues to solicit votes from stockholders during the adjournment period.

Board of directors and corporate governance

• Directors, executive officers, and employees may be deemed participants in the proxy solicitation for the reconvened Special Meeting.