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Stocks/FLY/SEC Filings/424B3 Oct 6, 2026

FLY 424B3: Board change

Firefly Aerospace

Filed with the SEC on Oct 6, 2026 · accession 0001193125-26-415568

FLY filed a 424B3 (prospectus (offering)) with the SEC on Oct 6, 2026. The final terms of an offering of shares or bonds. The stock moved +1.1% by the first close after the filing.

Summary of the filing

Firefly Aerospace announced the resignation of director Thomas Zurbuchen effective September 30, 2026, and the appointment of Rick Ambrose as a Class III director, Audit Committee member, and Compensation Committee member effective October 5, 2026.

For details, click here →How to read a 424B3 →

Key details

Shares of common stock registered for resale by selling securityholders$11.1M
Closing price of common stock on October 5, 2026$23
IssuerFirefly Aerospace Inc.
Acquired companySciTec Innovations, LLC
Board affiliation of new directorTextron Inc.
Former employer of new directorLockheed Martin Corporation
DirectorThomas Zurbuchen
Class iii director, audit committee member, compensation committee memberRick Ambrose

How FLY stock reacted

Close before

$22.59

Oct 5, 2026

First close after

+1.06%

$22.83

5 trading days

-14.25%

$19.37

Since filing

-8.10%

$20.76

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Frequently asked questions

What did FLY file with the SEC on Oct 6, 2026?

FLY filed a 424B3 (Board change). Firefly Aerospace announced the resignation of director Thomas Zurbuchen effective September 30, 2026, and the appointment of Rick Ambrose as a Class III director, Audit Committee member, and Compensation Committee member effective October 5, 2026.

What does a board change mean for FLY stock?

Not always. A planned retirement with a successor is usually calm; a sudden departure “effective immediately”, especially of a CFO or near results, often worries investors.

How do I read a 424B3?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did FLY stock react to this filing?

FLY closed at $22.59 before the filing and $22.83 on Oct 6, 2026 (+1.06%). Five trading days later: $19.37 (-14.25%).

Other FLY SEC filings

  • 8-K · Board changeOct 6, 2026
  • SCHEDULE 13G/A · SEC filingAug 14, 2026
  • SCHEDULE 13G/A · SEC filingAug 14, 2026
  • SCHEDULE 13G/A · SEC filingAug 11, 2026
  • 424B3 · Secondary offeringAug 11, 2026
  • 8-K · SEC filingAug 11, 2026
  • 10-Q · SEC filingAug 11, 2026
  • 8-K · Board changeJun 5, 2026
  • 8-K · Secondary offeringJun 2, 2026
  • S-1 · Secondary offeringMay 26, 2026

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Source: SEC EDGAR filing 0001193125-26-415568. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.