RKLB 8-K: Smart Summary

On June 3, 2026, Rocket Lab Corporation appointed Agostino Ricupati as Vice President, Corporate Controller and Chief Accounting Officer (principal accounting officer). Concurrently, Adam C. Spice was relieved of his role as principal accounting officer but continues as Chief Financial Officer and principal financial officer.

• Vice President, Corporate Controller and Chief Accounting Officer (Principal Accounting Officer) Agostino Ricupati — appointed effective June 3, 2026; age 59; responsible for global accounting operations; previously served as Senior Vice President and Chief Accounting Officer of Cooper Companies, Inc. (July 2017–May 2026) and Vice President Tax and Global Trade Compliance of Cooper Companies (July 2013–July 2017); prior senior tax roles at Intel Corporation, McAfee Corp., Baxter International, and Arthur Andersen LLP (October 1998–May 2013); licensed Certified Public Accountant; will be party to the Company's standard indemnification agreement

• Agostino Ricupati — Annual base salary of $350,000; discretionary performance bonus with a target opportunity equal to 40% of base salary (paid in cash or equity), prorated for 2026; sign-on bonus of $50,000; monthly temporary housing stipend not to exceed $5,000 per month for the first seven months following commencement of employment; RSU award with a total value of $3,000,000 vesting over four years (number of shares to be determined per Company standard practice, subject to standard terms of the Company's form of restricted stock unit agreement); eligible to participate in compensation and benefit programs generally available to senior executives, including the Company's Executive Severance Plan

• Principal Accounting Officer Adam C. Spice — effective June 3, 2026, will no longer serve as principal accounting officer; continues to serve as Chief Financial Officer and principal financial officer of the Company