Shannon Thyme Klinger, Chief Legal Officer of Moderna, Inc. (NASDAQ:MRNA), filed a Form 4 on August 31, 2026, reporting restricted stock unit vesting events and related share withholdings on August 27 and August 28, 2026.

Key Highlights

  • RSU conversion on August 27: 774 restricted stock units converted into 774 shares of common stock at $0 exercise price, with 375 shares subsequently withheld for tax obligations at $149.66 per share.
  • RSU conversion on August 28: 329 restricted stock units converted into 329 shares of common stock at $0 exercise price, with 160 shares withheld for tax obligations at $142.77 per share.
  • Post-transaction ownership: Following both transactions, Klinger directly held 73,960 shares after the August 27 activity, adjusting to 74,129 shares after the August 28 activity, according to the filing.
  • Remaining RSUs: 4,642 restricted stock units remain outstanding following the August 27 vesting, and 658 remain following the August 28 vesting.
  • Tax withholding method: The filing states that withheld shares represent "shares withheld at the election of the Reporting Person to satisfy tax withholding obligations in connection with the vest of restricted stock units."

RSU Vesting Details for Moderna's Chief Legal Officer

According to the filing, Klinger's August 27, 2026 transaction involved the vesting of restricted stock units under an award for which 25% of shares vested on February 27, 2025, with the remainder vesting in twelve equal quarterly installments thereafter. The conversion of 774 units to common stock was coded as an "M" transaction, meaning exercise or conversion of a derivative security. Of those 774 shares acquired, 375 were withheld at $149.66 per share to cover tax obligations, leaving a direct beneficial ownership of 73,960 shares of common stock.

The August 28, 2026 transaction involved a separate RSU award for which 25% of shares vested on February 28, 2024, with the remainder also vesting in twelve equal quarterly installments thereafter. Under this award, 329 units converted to common stock, and 160 shares were withheld at $142.77 per share for tax purposes. Following this transaction, Klinger's directly held shares stood at 74,129. After the August 28 vesting, 658 restricted stock units remain outstanding under that award. All transactions were reported as direct ownership, and the filing was signed by James Dillon as Attorney-in-Fact on August 31, 2026.

What Was Disclosed

The filing reports two RSU vesting events for Moderna's Chief Legal Officer on August 27 and August 28, 2026, covering 1,103 total units converted to common stock, with 535 shares withheld for taxes across both dates. Remaining RSU balances and resulting direct share ownership were also reported.