Stiehle Thomas E. 4

What Happened
Thomas E. Stiehle, Executive Vice President and CFO of Huntington Ingalls Industries (HII), exercised 540.766 restricted stock rights (RSRs) on 2026-02-26. The exercise is reported at $443.00 per share for a gross value of $239,559. Of those shares, 243.886 were withheld by the issuer to cover withholding taxes (valued at $108,041), leaving a net ~296.88 shares added to Stiehle’s holdings. The filing also records the conversion/settlement of the derivative award.

Key Details

• Transaction date: 2026-02-26 (filed 2026-03-02; filing appears timely within required business days).
• Exercise: 540.766 RSRs at $443.00 — gross value $239,559 (transaction code M).
• Tax withholding: 243.886 shares withheld at $443.00 — value $108,041 (transaction code F).
• Net shares retained from the vesting: ~296.88 shares (540.766 acquired − 243.886 withheld).
• Footnotes: RSRs vested on 2/26/26; RSRs were granted 2/26/24 under the 2022 LTISP and vest in three equal annual installments. Withholding of shares was used to pay tax liabilities.
• Filing does not state total shares owned after the transaction in the provided excerpt.

Context

• These RSRs are time-based equity awards that vested (not an open-market purchase or sale). Withholding of shares to cover taxes is a common net-settlement method and is not the same as an open-market sale.
• Transaction codes: M = exercise/conversion of a derivative (conversion of RSRs to stock); F = shares withheld to pay tax obligations.
• For retail investors: this is routine compensation vesting and tax withholding rather than a directional buy/sell signal by the insider.