Firefly (FLY) CTO Ferring Shea Withholds 16,700 Shares for Taxes

What Happened

• Ferring Russell Shea, Chief Technology Officer of Firefly Aerospace (FLY), had 16,700 shares of common stock withheld by the company to satisfy his tax withholding obligation upon the vesting of restricted stock units. The withheld shares are recorded as a disposition at $20.28 per share, with a total value of $338,676.

Key Details

• Transaction date: 2026-09-16
• Filing date (Form 4): 2026-09-18 (appears timely under the Form 4 two-business-day rule)
• Shares withheld/disposed: 16,700
• Price used for withholding: $20.28 per share
• Total value of shares withheld: $338,676
• Shares owned after the transaction: Not disclosed in the filing
• Footnote: F1 — shares were withheld by the issuer to cover the reporting person's tax withholding obligation upon RSU vesting
• Exhibit included: 24.1 — Power of Attorney

Context

• This is a tax-withholding disposition (transaction code F), a routine administrative action when restricted stock units vest; it should not be interpreted as an open-market sale or an indication of the insider’s view on the company's stock. No purchase, open-market sale, 10b5-1 plan, or other trading plan is reported in this filing.