Barclays reports 1.43M shares (7%) in SBXD

Barclays PLC reported beneficial ownership of 1,431,850 shares of SILVERBOX CORP IV-A, representing 7.00% of the class as of 03/31/2026.

Rhea-AI Filing Summary

Barclays PLC reported beneficial ownership of 1,431,850 shares of SILVERBOX CORP IV-A, representing 7.00% of the class as of 03/31/2026. The filing states Barclays has sole voting and sole dispositive power over these shares.

The Schedule 13G lists Barclays Bank PLC and Barclays Capital Inc. as subsidiaries associated with the reported holdings and is signed by a Barclays director on 05/14/2026.

Insights

Governance Analyst

Barclays discloses a passive 7.00% stake with sole voting and dispositive powers.

The Schedule 13G shows Barclays PLC beneficially owns 1,431,850 shares of SILVERBOX CORP IV-A as of 03/31/2026. The report indicates sole power to vote and dispose of the shares, and names Barclays Bank PLC and Barclays Capital Inc. as related subsidiaries.

Timing and cash‑flow treatment are not described; subsequent filings may disclose any changes in ownership or voting status.

Key Figures

Beneficial ownership: 1,431,850 shares Percent of class: 7.00% Reporting date: 03/31/2026 +1 more

4 metrics

Beneficial ownership 1,431,850 shares Amount beneficially owned as reported

Percent of class 7.00% Percent of class as reported as of 03/31/2026

Reporting date 03/31/2026 Date tied to the reported ownership figure

Filing signature date 05/14/2026 Schedule 13G signed by Barclays director

Key Terms

Schedule 13G, beneficially owned, sole dispositive power

3 terms

Schedule 13G regulatory

"Item 1. (a) Name of issuer: SILVERBOX CORP IV-A"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Item 4. (a) Amount beneficially owned: 1431850"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Item 4. (iii) Sole power to dispose or to direct the disposition of: 1431850"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

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

What stake does Barclays PLC hold in SILVERBOX CORP IV-A (SBXD)?

Barclays PLC holds 1,431,850 shares, equal to 7.00% of the class. The Schedule 13G lists sole voting and sole dispositive power over these shares and names Barclays Bank PLC and Barclays Capital Inc. as related subsidiaries.

As of what date is the 7.00% ownership reported for SBXD?

The ownership amount is reported as of 03/31/2026. The filing is signed on 05/14/2026 by a Barclays director and references the same reported share count and percentages tied to the 03/31/2026 date.

Does the filing show Barclays intends to acquire or sell more SBXD shares?

The Schedule 13G reports existing beneficial ownership but does not state acquisition or sale intentions. It lists voting and dispositive power; any future transactions would appear in subsequent securities filings.

Which Barclays entities are identified as related to this SBXD holding?

The filing identifies Barclays Bank PLC and Barclays Capital Inc. as the subsidiaries associated with the parent holding company report. The Schedule 13G indicates these entities in the Item 7 subsidiary identification section.

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

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Accepted by SEC EDGAR 05/14/2026 - 09:23 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

SILVERBOX CORP IV-A

(Name of Issuer)

COMMON-STOCK

(Title of Class of Securities)

G81354105

(CUSIP Number)

03/31/2026

(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): G81354105

1

Names of Reporting Persons

Barclays PLC

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 KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,431,850.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,431,850.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,431,850.00

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)

7.00 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: SILVERBOX CORP IV-A
(b)	Address of issuer's principal executive offices: 1250 S. Capital of Texas Highway
Item 2.
(a)	Name of person filing: Barclays PLC
(b)	Address or principal business office or, if none, residence: 1 Churchill Place, London - E14 5HP
(c)	Citizenship: X0
(d)	Title of class of securities: COMMON-STOCK
(e)	CUSIP Number(s): G81354105
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: 1431850
(b)	Percent of class: 7.00 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1431850
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1431850
	(iv) Shared power to dispose or to direct the disposition of: 0
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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Barclays Bank PLC, Barclays Capital Inc
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.

Barclays PLC

Signature:	Ramya Rao
Name/Title:	Director
Date:	05/14/2026