Cabaletta Bio (CABA) Proxy filing summary

Executive summary

• Annual meeting scheduled for June 9, 2026, to be held virtually for shareholders of record as of April 20, 2026.

• Shareholders are encouraged to review proxy materials online and may request paper or email copies by May 29, 2026.

Voting matters and shareholder proposals

• Election of two Class I directors to serve until the 2029 annual meeting: Scott Brun, M.D., and Shawn Tomasello, MBA.

• Ratification of Ernst & Young LLP as independent auditor for fiscal year ending December 31, 2026.

• Amendment to the 2019 Stock Option and Incentive Plan proposed.

• Amendment to increase authorized common stock from 300,000,000 to 600,000,000 shares.

• Advisory vote on executive compensation (say-on-pay).

• Proposal to adjourn the meeting if more time is needed for Proposals 3 and 4.

Board of directors and corporate governance

• Board recommends voting FOR all director nominees and all proposals on the agenda.