Jesung Kim - 19 Mar 2026 Form 4 Insider Report for Firefly Aerospace Inc. (FLY)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: FLY
Reported as of: 19 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Mar 2026, 17:44:05 UTC
Prior SEC filing: 26 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ David Wheeler, Attorney-in-fact

Key filing fact

Jesung Kim filed Form 4 for Firefly Aerospace Inc. (FLY) on 20 Mar 2026.

Key facts

This page summarizes Jesung Kim's Form 4 filing for Firefly Aerospace Inc. (FLY).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 20 Mar 2026, 17:44.

Change

Previous filing in this sequence was filed on 26 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002078068 Primary reporting owner

Kim Jesung

Relationship: Chief Executive Officer, Director
Address: C/O FIREFLY AEROSPACE INC., 1320 ARROW POINT DRIVE #109, CEDAR PARK
Signature: /s/ David Wheeler, Attorney-in-fact
Signature date: 20 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FLY transaction

Common Stock

Award

Transaction value
Shares: +52,836
Change %: +5.9%
Price: $0.000000^*
Shares after: 941,725
Date: 19 Mar 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. One-third of the RSUs vest at the one-year anniversary of the grant date, and 1/12 of the RSUs vest quarterly thereafter (such that the RSUs will be fully vested at the third anniversary of the grant date), subject in each case to the reporting person's continued employment with the Issuer through the respective vesting date.