York Space Systems (YSS) investors may be deemed to control 57.25% stake

Rhea-AI Filing Summary

York Space Systems Inc. received an amended Schedule 13G from a group of AE Industrial-related investment funds and individuals, including AeroEquity GP, LLC, Michael Robert Greene, and David H. Rowe. The Reporting Persons collectively report beneficial ownership of 32,915,588 shares of Common Stock, representing 23.96% of the class, based on 137,357,605 shares outstanding as of the latest quarterly report.

These shares are directly held by various AE Industrial funds that are ultimately controlled by AeroEquity, which in turn is managed by Greene and Rowe, who make voting and investment decisions. Due to a Director Nomination Agreement and separate Voting Agreements with other stockholders, the Reporting Persons may be deemed to beneficially own in the aggregate 78,632,605 shares, or 57.25% of the outstanding Common Stock, although they expressly disclaim membership in any such group and beneficial ownership of those additional securities.

Key Figures

Shares beneficially owned (direct AE Holders): 32,915,588 shares Ownership percentage (direct AE Holders): 23.96% Shares outstanding: 137,357,605 shares +4 more

7 metrics

Shares beneficially owned (direct AE Holders) 32,915,588 shares Common Stock beneficially owned by Reporting Persons, as reported on the cover pages

Ownership percentage (direct AE Holders) 23.96% Percentage of Common Stock class based on 137,357,605 shares outstanding

Shares outstanding 137,357,605 shares Common Stock outstanding as reported in the August 14, 2026 Form 10-Q

Dirk Wallinger shares 11,168,593 shares Common Stock beneficially owned by Dirk Wallinger, excluded from reported amounts

Shares under Voting Agreements 34,548,424 shares Aggregate Common Stock beneficially owned by parties to Voting Agreements as of August 11, 2026

Aggregate shares potentially deemed owned 78,632,605 shares Common Stock the Reporting Persons may be deemed to beneficially own in the aggregate

Potential aggregate ownership percentage 57.25% Percentage of Common Stock that may be deemed beneficially owned in aggregate

Key Terms

beneficially own, Director Nomination Agreement, Voting Agreements, Joint Filing Agreement, +1 more

5 terms

beneficially own financial

"As a result of the foregoing, the Reporting Persons may be deemed to beneficially own an aggregate of 78,632,605 shares"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

Director Nomination Agreement regulatory

"Pursuant to the Director Nomination Agreement, dated as of January 28, 2026, by and among the Issuer and the stockholders"

Voting Agreements regulatory

"an aggregate of 34,548,424 shares of Common Stock beneficially owned as of August 11, 2026 by parties to voting agreements (the "Voting Agreement")"

A voting agreement is a legally binding deal where shareholders promise to cast their votes the same way on corporate matters, such as choosing directors or approving big transactions. Think of it like a neighborhood group agreeing to support the same candidate so they can decide how the block is run; for investors, these pacts can change who controls a company, influence strategy and risk, and affect the value and liquidity of shares.

Joint Filing Agreement regulatory

"The Reporting Persons have entered into a Joint Filing Agreement, dated May 15, 2026, a copy of which is attached as Exhibit 1"

Rule 13d-5(b) regulatory

"the Reporting Persons may be deemed to be a member of a "group" within the meaning of Rule 13d-5(b)"

FAQ

What ownership stake in York Space Systems (YSS) is reported in this Schedule 13G/A?

The filing reports 32,915,588 shares of York Space Systems Common Stock beneficially owned, representing 23.96% of the class. This percentage is calculated using 137,357,605 shares outstanding as disclosed in a recent quarterly report.

Who are the reporting persons in the York Space Systems (YSS) Schedule 13G/A amendment?

The reporting group includes multiple AE Industrial Partners funds, AeroEquity GP, LLC, and individuals Michael Robert Greene and David H. Rowe. They have a Joint Filing Agreement to file ownership reports together under Rule 13d-1(k).

How could group arrangements affect effective control of York Space Systems (YSS)?

Because of a Director Nomination Agreement and separate Voting Agreements, the Reporting Persons may be deemed to beneficially own 78,632,605 shares, or 57.25% of outstanding Common Stock, although they explicitly disclaim such group membership and related beneficial ownership.

Does the York Space Systems (YSS) filing include Dirk Wallinger’s holdings?

The Reporting Persons note that 11,168,593 shares are beneficially owned by Dirk Wallinger, but their reported amounts for Items 5–9 specifically exclude his holdings, despite stating they may be deemed part of a group with him under certain agreements.

What additional shares related to voting agreements are mentioned for York Space Systems (YSS)?

The filing references an aggregate of 34,548,424 shares of Common Stock beneficially owned by parties to Voting Agreements. These shares are also excluded from the reported amounts, though the Reporting Persons state they may be deemed part of a group with those holders.

Where are York Space Systems (YSS) and the reporting funds based?

York Space Systems lists its principal executive offices at 6060 S. Willow Drive, Greenwood Village, CO 80111. The Reporting Persons’ principal business office is identified as 6700 Broken Sound Pkwy NW, Boca Raton, FL 33487.

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

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Available on EDGAR 08/14/2026 - 04:12 PM Accepted by SEC EDGAR 08/14/2026 - 04:05 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

York Space Systems Inc.

(Name of Issuer)

Common Stock, par value $0.0001

(Title of Class of Securities)

987084100

(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): 987084100

1

Names of Reporting Persons

AeroEquity GP, LLC

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 32,915,588.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 32,915,588.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

32,915,588.00

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)

23.96 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Calculated based on 137,357,605 shares of common stock, par value $0.0001 per share ("Common Stock") of York Space System Inc. (the "Issuer") outstanding as reported on the Issuer's Quarterly Report on Form 10-Q filed with the SEC on August 14, 2026.

SCHEDULE 13G

CUSIP Number(s): 987084100

1

Names of Reporting Persons

Michael Robert Greene

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 32,915,588.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 32,915,588.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

32,915,588.00

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)

23.96 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Calculated based on 137,357,605 shares of Common Stock of the Issuer outstanding as reported on the Issuer's Quarterly Report on Form 10-Q filed with the SEC on August 14, 2026.

SCHEDULE 13G

CUSIP Number(s): 987084100

1

Names of Reporting Persons

David H. Rowe

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 32,915,588.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 32,915,588.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

32,915,588.00

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)

23.96 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Calculated based on 137,357,605 shares of Common Stock of the Issuer outstanding as reported on the Issuer's Quarterly Report on Form 10-Q filed with the SEC on August 14, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: York Space Systems Inc.
(b)	Address of issuer's principal executive offices: 6060 S. Willow Drive, Greenwood Village, CO 80111
Item 2.
(a)	Name of person filing: This statement is filed by the entities listed below: (i) AE Industrial Partners Fund II, LP; (ii) AE Industrial Partners Fund II-A, LP; (iii) AE Industrial Partners Fund II-B, LP; (iv) AE Industrial Partners Fund III, LP; (v) AE Industrial Partners Fund III-A, LP; (vi) AE Industrial Partners Aerospace Opportunities, LP; (vii) AE Co-Investment Partners Fund III-Y, LP; (viii) AE Co-Investment Partners Fund III Y-2, LP; (ix) AE Industrial PSO Equity Partners, LP; (x) AE Industrial Partners PBCI Aggregator, LP; (xi) AE Industrial HorizonX Venture Fund II, LP; (xii) AE Industrial HorizonX Venture Fund I, LP; (xiii) AE Ventures Fund III, LP; (xiv) AE Industrial Partners Structured Solutions I, LP; (xv) AE Industrial HorizonX Venture Co-Investment Fund I, LP (together with each of the foregoing, the "AE Holders"); (xi) AeroEquity GP, LLC ("AeroEquity"); (xii) Michael Robert Greene; and (xiii) David H. Rowe (together with AeroEquity and Michael Robert Greene, the "Reporting Persons"). The Reporting Persons have entered into a Joint Filing Agreement, dated May 15, 2026, a copy of which is attached as Exhibit 1 to the Schedule 13G filed by the Reporting Persons on May 15, 2026, pursuant to which the Reporting Persons agreed to file the Schedule 13G and any amendments thereto jointly in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
(b)	Address or principal business office or, if none, residence: 6700 Broken Sound Pkwy NW, Boca Raton, FL 33487
(c)	Citizenship: See response to Item 4 on the cover page.
(d)	Title of class of securities: Common Stock, par value $0.0001
(e)	CUSIP No.: 987084100
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: See response to Item 9 on the cover page.
(b)	Percent of class: See response to Item 11 on the cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See response to Item 5 on the cover page.
	(ii) Shared power to vote or to direct the vote: See response to Item 6 on the cover page.
	(iii) Sole power to dispose or to direct the disposition of: See response to Item 7 on the cover page.
	(iv) Shared power to dispose or to direct the disposition of: See response to Item 8 on the cover page. Each of the AE Holders is ultimately controlled by AeroEquity. AeroEquity is controlled by its managing members, Michael Robert Greene and David H. Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. AeroEquity and Messrs. Greene and Rowe may therefore be deemed to have voting and dispositive power over 32,915,588.00 shares of Common Stock directly held by the AE Holders. The reported amounts do not include 11,168,593 shares of Common Stock beneficially owned by Dirk Wallinger. Pursuant to the Director Nomination Agreement, dated as of January 28, 2026, by and among the Issuer and the stockholders party thereto, the Reporting Persons may be deemed to be a member of a "group" within the meaning of Rule 13d-5(b) and beneficially own securities beneficially owned by Dirk Wallinger. The filing of this Statement shall not be deemed an admission of membership in any such "group" or of beneficial ownership of the securities beneficially owned by Mr. Wallinger, for purposes of Section 13(d) or 13(g) or for any other purpose. The responses to Items 5 through 9 of the cover page to this Statement do not reflect any securities beneficially owned by Mr. Wallinger. The reported amounts also do not include an aggregate of 34,548,424 shares of Common Stock beneficially owned as of August 11, 2026 by parties to voting agreements (the "Voting Agreement"), by and among the Issuer and the stockholders party thereto. Pursuant to the Voting Agreements, the Reporting Persons may be deemed to be a member of a "group" within the meaning of Rule 13d-5(b) and beneficially own securities beneficially owned by the parties to the Voting Agreements. The filing of this Statement shall not be deemed an admission of membership in any such "group" or of beneficial ownership of the securities beneficially owned by such parties, for purposes of Section 13(d) or 13(g) or for any other purpose. The responses to Items 5 through 9 of the cover page to this Statement do not reflect any securities beneficially owned by parties subject to the Voting Agreements. As a result of the foregoing, the Reporting Persons may be deemed to beneficially own an aggregate of 78,632,605 shares of Common Stock, or 57.25% of shares of Common Stock outstanding.
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.

AeroEquity GP, LLC

Signature:	/s/ Michael Robert Greene
Name/Title:	Michael Robert Greene / Authorized Signatory
Date:	08/14/2026

Michael Robert Greene

Signature:	/s/ Michael Robert Greene
Name/Title:	Michael Robert Greene
Date:	08/14/2026

David H. Rowe

Signature:	/s/ David H. Rowe
Name/Title:	David H. Rowe
Date:	08/14/2026

Exhibit Information

Exhibit 1 Joint Filing Agreement, dated as of May 15, 2026 (incorporated by reference to Exhibit 1 of the Reporting Person's Schedule 13G filed on May 15, 2026).