Horizon Space Acquisition II holders cut stake to 0%

Horizon Space Acquisition II Corp. received an amended Schedule 13G filing from ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez reporting that they now beneficially own 0 ordinary shares of the company.

Rhea-AI Filing Summary

Horizon Space Acquisition II Corp. received an amended Schedule 13G filing from ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez reporting that they now beneficially own 0 ordinary shares of the company. The filing states that each reporting person holds 0.0% of the class and has no sole or shared voting or dispositive power over any ordinary shares. The reporting persons expressly disclaim beneficial ownership of any securities previously reported, except to the extent of any pecuniary interest.

Key Figures

Beneficially owned shares: 0 Percent of class owned: 0.0% CUSIP: G4627B129 +1 more

4 metrics

Beneficially owned shares 0 Amount beneficially owned by ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez

Percent of class owned 0.0% Reported percent of Horizon Space Acquisition II Corp. ordinary shares for each reporting person

CUSIP G4627B129 CUSIP number for Horizon Space Acquisition II Corp. ordinary shares

Par value per share $0.0001 Par value of Horizon Space Acquisition II Corp. ordinary shares

Key Terms

beneficial owner, pecuniary interest, dispositive power, percent of class

4 terms

beneficial owner regulatory

"This report shall not be deemed an admission that any of the reporting persons or any other person is the beneficial owner"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

pecuniary interest financial

"Each of the reporting persons disclaims beneficial ownership of the Shares reported herein except to the extent of each of their pecuniary interest"

dispositive power regulatory

"Sole Dispositive Power 0.00 8 | Shared Dispositive Power 0.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

percent of class financial

"Percent of class: ATW SPAC Management LLC - 0.0% Kerry Propper - 0.0% Antonio Ruiz-Gimenez - 0.0%"

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did the Schedule 13G/A filing for HSPT disclose?

The Schedule 13G/A disclosed that ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez now report 0 ordinary shares of Horizon Space Acquisition II Corp., representing 0.0% of the class, with no voting or dispositive power.

Who are the reporting persons in Horizon Space Acquisition II Corp. (HSPT)'s Schedule 13G/A?

The reporting persons are ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez. They jointly filed to report that they each beneficially own 0 shares and 0.0% of the ordinary shares of Horizon Space Acquisition II Corp.

What percentage of Horizon Space Acquisition II Corp. (HSPT) do the filers report owning?

The filers report owning 0.0% of the class of Horizon Space Acquisition II Corp. ordinary shares. Each reports 0 shares beneficially owned and no sole or shared power to vote or dispose of any shares.

Do the Schedule 13G/A filers for HSPT claim beneficial ownership of any shares?

No. Each reporting person states they beneficially own 0 shares and expressly disclaims beneficial ownership of the securities reported, except to the extent of any pecuniary interest they may have in such securities.

What is the citizenship of the Schedule 13G/A filers for Horizon Space Acquisition II Corp. (HSPT)?

The filing lists ATW SPAC Management LLC as organized in Delaware, Kerry Propper as a citizen of the United States, and Antonio Ruiz-Gimenez as a citizen of Spain.

Where are the principal offices of Horizon Space Acquisition II Corp. (HSPT) and the filers located?

Horizon Space Acquisition II Corp. has principal executive offices at 1412 Broadway, 21st Floor, Suite 21V, New York, NY 10018. The reporting persons list their principal business office at 1 Pennsylvania Plaza, Suite 4810, New York, NY 10119.

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

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Available on EDGAR 08/13/2026 - 02:58 PM Accepted by SEC EDGAR 08/13/2026 - 02:58 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)

Horizon Space Acquisition II Corp.

(Name of Issuer)

Ordinary Shares, $0.0001 par value

(Title of Class of Securities)

G4627B129

(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): G4627B129

1

Names of Reporting Persons

ATW SPAC MANAGEMENT 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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

IA, OO

Comment for Type of Reporting Person: Please see note in Item 4(a).

SCHEDULE 13G

CUSIP Number(s): G4627B129

1

Names of Reporting Persons

Kerry Propper

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

HC, IN

Comment for Type of Reporting Person: Please see note in Item 4(a).

SCHEDULE 13G

CUSIP Number(s): G4627B129

1

Names of Reporting Persons

Antonio Ruiz-Gimenez

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

SPAIN

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

HC, IN

Comment for Type of Reporting Person: Please see note in Item 4(a).

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Horizon Space Acquisition II Corp.
(b)	Address of issuer's principal executive offices: 1412 Broadway, 21st Floor, Suite 21V New York, New York 10018
Item 2.
(a)	Name of person filing: ATW SPAC Management LLC* Kerry Propper* Antonio Ruiz-Gimenez*
(b)	Address or principal business office or, if none, residence: 1 Pennsylvania Plaza, Suite 4810 New York, New York 10119
(c)	Citizenship: ATW SPAC Management LLC - Delaware Kerry Propper - United States Antonio Ruiz-Gimenez - Spain
(d)	Title of class of securities: Ordinary Shares, $0.0001 par value
(e)	CUSIP No.: G4627B129
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: ATW SPAC Management LLC - 0* Kerry Propper - 0* Antonio Ruiz-Gimenez - 0* *This report shall not be deemed an admission that any of the reporting persons or any other person is the beneficial owner of the securities reported herein, or on previous filings, for purposes of Section 13 of the Securities Exchange Act of 1934, as amended, or for any other purpose. Each of the reporting persons disclaims beneficial ownership of the Shares reported herein (or previously reported herein) except to the extent of each of their pecuniary interest, if any, therein.
(b)	Percent of class: ATW SPAC Management LLC - 0.0% Kerry Propper - 0.0% Antonio Ruiz-Gimenez - 0.0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: ATW SPAC Management LLC - 0 Kerry Propper - 0 Antonio Ruiz-Gimenez - 0
	(ii) Shared power to vote or to direct the vote: ATW SPAC Management LLC - 0* Kerry Propper - 0* Antonio Ruiz-Gimenez - 0*
	(iii) Sole power to dispose or to direct the disposition of: ATW SPAC Management LLC - 0 Kerry Propper - 0 Antonio Ruiz-Gimenez - 0
	(iv) Shared power to dispose or to direct the disposition of: ATW SPAC Management LLC - 0* Kerry Propper - 0* Antonio Ruiz-Gimenez - 0*
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

ATW SPAC MANAGEMENT LLC

Signature:	/s/ Kerry Propper
Name/Title:	Kerry Propper, Co-Managing Member
Date:	08/13/2026

Kerry Propper

Signature:	/s/ Kerry Propper
Name/Title:	Individually
Date:	08/13/2026

Antonio Ruiz-Gimenez

Signature:	/s/ Antonio Ruiz-Gimenez
Name/Title:	Individually
Date:	08/13/2026

Exhibit Information

Exhibit I - JOINT FILING STATEMENT