Astera Institute (FLY) discloses 6.9% Firefly Aerospace stake in Schedule 13G/A

Rhea-AI Filing Summary

Astera Institute, a Delaware non-profit, and its executive director Jed McCaleb report beneficial ownership of 11,338,168 shares of Firefly Aerospace Inc. common stock on a Schedule 13G/A. Based on 164,067,383 shares outstanding as of June 1, 2026, this represents 6.9% of the class.

The shares are held of record by Astera Institute, which has shared voting and dispositive power over all 11,338,168 shares and no sole power. Mr. McCaleb reports the position but disclaims beneficial ownership of securities held by Astera Institute.

Key Figures

Shares beneficially owned: 11,338,168 shares Percent of class: 6.9% Shares outstanding: 164,067,383 shares +2 more

5 metrics

Shares beneficially owned 11,338,168 shares Firefly Aerospace common stock beneficially owned as of June 30, 2026

Percent of class 6.9% Portion of Firefly Aerospace common stock outstanding represented by the reported holding

Shares outstanding 164,067,383 shares Firefly Aerospace common stock outstanding as of June 1, 2026, per prospectus

Shared voting power 11,338,168 shares Shares over which the reporting persons have shared power to vote or direct the vote

Shared dispositive power 11,338,168 shares Shares over which the reporting persons have shared power to dispose or direct disposition

Key Terms

beneficial ownership, shared voting power, shared dispositive power, percent of class, +1 more

5 terms

beneficial ownership financial

"The ownership information presented below represents beneficial ownership of the shares of Common Stock"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

shared voting power financial

"Shared Voting Power 11,338,168.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 11,338,168.00"

percent of class financial

"Percent of class: 6.9%"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

Schedule 13G/A regulatory

"This statement is filed on behalf of: Astera Institute Jed McCaleb"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/11/2026 - 04:16 PM Accepted by SEC EDGAR 08/11/2026 - 04:15 PM Learn about SEC filing dates

FAQ

What percentage of Firefly Aerospace Inc. (FLY) does Astera Institute report owning?

Astera Institute reports beneficial ownership of 6.9% of Firefly Aerospace Inc.’s common stock. This is based on 164,067,383 shares outstanding as of June 1, 2026, as disclosed in the issuer’s prospectus.

How many Firefly Aerospace Inc. (FLY) shares are reported as beneficially owned?

The reporting persons list 11,338,168 shares of Firefly Aerospace Inc. common stock as beneficially owned. This holding is entirely subject to shared voting and dispositive power and represents 6.9% of the outstanding class.

Who are the reporting persons in this Schedule 13G/A for Firefly Aerospace Inc. (FLY)?

The reporting persons are Astera Institute, a Delaware non-profit, and Jed McCaleb, its executive director. Astera Institute is the record holder of the 11,338,168 shares reported in the filing.

Does Jed McCaleb claim beneficial ownership of Firefly Aerospace Inc. (FLY) shares held by Astera Institute?

Jed McCaleb disclaims beneficial ownership of any Firefly Aerospace Inc. securities held by Astera Institute. The filing states he is the executive director of Astera Institute, which is the record holder of the reported shares.

What voting and dispositive powers are reported over Firefly Aerospace Inc. (FLY) shares?

The reporting persons state 0 shares with sole voting or dispositive power and 11,338,168 shares with shared voting and shared dispositive power. All reported ownership relates to these shared powers over the same block of common stock.

As of what date is the Firefly Aerospace Inc. (FLY) ownership information reported?

The filing presents beneficial ownership as of June 30, 2026, using 164,067,383 shares of common stock outstanding as of June 1, 2026, as disclosed in Firefly Aerospace Inc.’s prospectus.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Firefly Aerospace Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

31816X106

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 31816X106

1

Names of Reporting Persons

Astera Institute

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 11,338,168.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 11,338,168.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,338,168.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.9 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP Number(s): 31816X106

1

Names of Reporting Persons

Jed McCaleb

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 11,338,168.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 11,338,168.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,338,168.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.9 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Firefly Aerospace Inc.
(b)	Address of issuer's principal executive offices: 2203 Scottsdale Drive Leander, TX, 78641
Item 2.
(a)	Name of person filing: Each of the following is hereinafter individually referred to as a "Reporting Person" and collectively as the "Reporting Persons." This statement is filed on behalf of: Astera Institute Jed McCaleb
(b)	Address or principal business office or, if none, residence: The principal business address of each of the Reporting Persons is 1351 Ocean Ave, Emeryville, CA 94608.
(c)	Citizenship: Astera Institute is organized under the laws of the State of Delaware. Jed McCaleb is a citizen of the United States.
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 31816X106
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: The ownership information presented below represents beneficial ownership of the shares of Common Stock as of June 30, 2026, based upon 164,067,383 shares of Common Stock outstanding as of June 1, 2026, as disclosed in the Issuer's Prospectus filed with the Securities and Exchange Commission on June 1, 2026. Astera Institute is the record holder of the shares of Common Stock reported herein. Astera Institute is a non-profit organization and Jed McCaleb is the executive director of such organization. As such, Mr. McCaleb disclaims beneficial ownership of any securities held by Astera Institute.
(b)	Percent of class: 6.9%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 11,338,168
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 11,338,168
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Astera Institute

Signature:	/s/ Jed McCaleb
Name/Title:	Jed McCaleb, Executive Director
Date:	08/11/2026

Jed McCaleb

Signature:	/s/ Jed McCaleb
Name/Title:	Jed McCaleb
Date:	08/11/2026

Exhibit Information

Exhibit 99: Joint Filing Agreement (previously filed).