Director Nina Armagno filed a Form 4 with the SEC on November 3, 2026, reporting the sale of 10,926 shares of Rocket Lab Corp common stock on November 2, 2026, executed automatically under a Rule 10b5-1 trading plan.

Key Highlights

  • Reporting person: Nina Armagno, a director of Rocket Lab Corp (NASDAQ:RKLB)
  • Total shares sold: 10,926 shares of common stock disposed of on November 2, 2026
  • Price range across all transactions: $50.7900 to $55.01 per share, in five separate tranches
  • Remaining beneficial ownership: 100,496 shares of common stock held directly after all reported transactions
  • Trading plan: All sales occurred automatically pursuant to a Rule 10b5-1 trading plan adopted September 19, 2025
  • Filing signed: By Arjun Kampani as attorney-in-fact for Nina Armagno, dated November 3, 2026

Nina Armagno's Five-Tranche Sale of Rocket Lab Common Stock

According to the filing, director Nina Armagno disposed of Rocket Lab Corp common stock in five separate transactions on November 2, 2026, all coded "S" (sale) and all executed directly. The filing states that each sale "occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 19, 2025." The filing also indicates the box was checked to confirm the transactions were made pursuant to a contract, instruction, or written plan satisfying the affirmative defense conditions of Rule 10b5-1(c).

The five tranches and their weighted-average prices, as reported in the filing, are as follows: 4,026 shares at a weighted-average price of $51.3092 (range $50.7900 to $51.7800); 1,500 shares at $52.6306 (range $51.8900 to $52.8800); 3,000 shares at $53.552 (range $52.9700 to $53.8800); 2,300 shares at $54.3361 (range $54.0100 to $54.7700); and 100 shares at $55.01. After each tranche, the filing reports Armagno's direct beneficial ownership declining from 107,396 shares to a final post-transaction total of 100,496 shares.

The filing notes that for each tranche with a weighted-average price, Armagno "undertakes to provide the Registrant, any securityholder of the Registrant, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range." No derivative securities transactions were reported in Table II of the filing.

What Was Disclosed

Rocket Lab Corp director Nina Armagno reported the sale of 10,926 shares of common stock on November 2, 2026, across five tranches at prices ranging from $50.7900 to $55.01, leaving her with 100,496 shares directly held, all pursuant to a pre-established 10b5-1 plan.