Atkinson Daniel A. 4

What Happened

• Daniel A. Atkinson, SVP and Controller of Leidos Holdings (LDOS), received an award of 1,076 restricted stock units (RSUs) on 2026-03-06 (acquired at $0.00). Following that, the company withheld 78 shares on 2026-03-07 and 63 shares on 2026-03-08 to satisfy the reporting person's tax obligations. The withheld shares were recorded at $177.89 per share, totaling $13,875 and $11,207 respectively (combined ~$25,082). This was an equity award (not an open-market purchase or sale); the withholding is a routine tax-coverage action.

Key Details

• Transaction types: A = Award/Grant (1,076 RSUs on 2026-03-06); F = Share withholding for tax liability (78 shares on 2026-03-07; 63 shares on 2026-03-08).
• Withholding price: $177.89 per share; total value of withheld shares ≈ $25,082.
• Vesting: The 1,076 RSUs will vest 33 1/3% annually over three years, beginning March 6, 2027 (footnote).
• Withholding reason: Shares were withheld to satisfy tax obligations related to previously reported RSU awards and were authorized by the award agreement (footnote).
• Shares owned after transaction: Not specified in the filing.
• Filing: Reported on SEC Form 4 (Accession 0001336920-26-000125) filed 2026-03-10 covering transactions dated 2026-03-06 to 2026-03-08.

Context

• This filing reflects an equity award and routine company tax withholding—not an open-market sale. Withholdings (code F) reduce the number of shares delivered to the insider to cover taxes and do not necessarily indicate a change in the insider’s view of the company.