Curis (CRIS) investor relations material

Executive summary

• Special Meeting scheduled for June 25, 2026, to be held virtually for all shareholders.

• Two main proposals: a reverse stock split and potential adjournment to solicit more votes if needed.

• Board recommends voting FOR both proposals to maintain Nasdaq listing and flexibility.

Voting matters and shareholder proposals

• Proposal 1 seeks approval for a reverse stock split at a ratio between 1-for-5 and 1-for-25, with the exact ratio and timing at the board's discretion.

• Proposal 2 allows adjournment of the meeting to solicit additional proxies if insufficient votes are received for Proposal 1.

• Only business described in the notice will be transacted at the meeting.

• Shareholders of record as of May 21, 2026, are entitled to vote, with one vote per share.

Board of directors and corporate governance

• Board retains authority to abandon the reverse stock split even after shareholder approval if deemed not in the best interest of the company.

• Board will determine the exact split ratio and timing within six months of approval.