REGENXBIO (RGNX) CTO Craig Malzahn Withholds 234 Shares for Taxes

What Happened
Craig Malzahn, Chief Technology Officer of REGENXBIO (RGNX), had 234 shares of common stock withheld to cover tax withholding upon the vesting of previously granted restricted stock units (RSUs). The withholding was recorded at a per-share price of $9.32, for a gross value of approximately $2,181 on September 1, 2026. This is a routine tax-withholding disposition (code F), not an open-market sale indicating trading sentiment.

Key Details

• Transaction date: 2026-09-01; Filing date (Form 4): 2026-09-03 (appears within the typical two-business-day filing window).
• Shares withheld: 234 at $9.32 per share; total value ≈ $2,181.
• Shares owned after transaction: Not specified in the provided excerpt of the filing.
• Footnote: The shares were withheld to pay taxes upon vesting of RSUs originally granted on September 1, 2022. The number withheld was determined using the issuer's closing stock price on September 1, 2026. (Footnote F1)
• Transaction code: F — tax withholding (common for vested awards), not a purchase (P) or open-market sale (S).

Context
Tax-withholding dispositions on vested RSUs are routine administrative actions: the company or broker retains shares to satisfy tax withholding rather than the insider selling additional shares in the open market. Such transactions generally do not signal a change in the insider’s view of the company and are distinct from voluntary sales or purchases.