Moderna CFO James Mock Acquires Shares via RSU Vesting with Routine Tax Withholding
Moderna, Inc.
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Filing Summary
Moderna, Inc. ($MRNA) — Form 4 Filing Summary • Insider: Mock James M (Chief Financial Officer) • Transaction Date: September 1, 2026 • Activity: Routine RSU Vesting & Tax Withholding
- Acquired: 2,475 shares via RSU conversion (Code M, $0.00)
- Disposed: 1,197 shares withheld for taxes (Code F, $140.34/share | Total: $167,986.98) • Post-Transaction Holdings: 68,282 shares (Direct) • Trading Significance: Low (Automatic/routine equity compensation and tax withholding)
Comprehensive Analysis
Executive Summary
On September 3, 2026, Moderna, Inc. ($MRNA) filed a Form 4 on behalf of Chief Financial Officer James M. Mock. The filing details the vesting of restricted stock units (RSUs) and associated tax withholding occurring on September 1, 2026.
Transaction Breakdown
-
RSU Conversion (Code M):
- Shares Acquired: 2,475 shares of Common Stock
- Conversion Price: $0.00 (1-for-1 conversion from RSUs)
-
Tax Withholding (Code F):
- Shares Disposed: 1,197 shares of Common Stock
- Price per Share: $140.34
- Total Value Withheld: $167,986.98
- Description: Mandatory share withholding to cover tax liabilities associated with the vesting event.
Ownership Post-Transaction
- Direct Ownership: 68,282 shares of Common Stock
- Derivative Holdings Remaining: 24,755 unvested Restricted Stock Units
Market Impact & Significance
This transaction represents routine equity compensation vesting and standard tax withholding rather than discretionary open-market buying or selling. Consequently, it carries Low trading significance for investors.
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Important Disclaimer
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