RKLB 8-K — Smart Summary

Rocket Lab Corporation filed a prospectus supplement on May 8, 2026 to register the resale of up to 2,277,002 shares of Common Stock by certain selling stockholders, issued in connection with the acquisition of Mynaric AG via a private placement on April 14, 2026.

• Target: Mynaric AG
• Shares issued in private placement: up to 2,277,002 shares of Common Stock, par value $0.0001 per share
• Shares issued on: April 14, 2026
• Governing agreement: Stock Purchase Agreement dated September 25, 2025, among the Company, Rocket Lab USA, Inc., OC III LVS LIII LP, CO Finance II LVS I LLC, Rocket Lab Germany GmbH (via joinder dated April 13, 2026), and OC IV LVS VI LP (via joinder dated April 13, 2026)
• Prospectus supplement filed pursuant to Rule 424(b)(7) under the Registration Statement on Form S-3ASR (File No. 333-285707), originally filed March 11, 2025, as amended by Post-Effective Amendment No. 1 filed May 27, 2025