Puma Biotechnology (PBYI) investor relations material

Executive summary

• Annual Meeting of Stockholders scheduled for June 11, 2026, at the company's Los Angeles office.

• Holders of record as of April 13, 2026, are entitled to vote on key proposals.

• Proxy materials, including the annual report and proxy statement, are available online, with options for paper or email delivery.

• Internet-based delivery of proxy materials aims to reduce costs and environmental impact.

Voting matters and shareholder proposals

• Election of eight director nominees for a one-year term.

• Ratification of KPMG LLP as independent registered public accounting firm for fiscal year ending December 31, 2026.

• Advisory (non-binding) vote to approve executive compensation.

• Approval of an amendment to extend the expiration date of a warrant held by Alan H. Auerbach until October 4, 2028.

• Board recommends voting "FOR" all proposals.

Board of directors and corporate governance

• Eight nominees listed for election to the board, including Alan H. Auerbach, Alessandra Cesano, Allison Dorval, Michael P. Miller, Jay M. Moyes, Adrian M. Senderowicz, Brian Stuglik, and Troy E. Wilson.