Rank One Computing (ROC) CTO & Director reports 24.0% ownership (4.75M shares)

Rhea-AI Filing Summary

Rank One Computing Corp amendment to a Schedule 13G/A reports that Joshua Klontz, CTO & Director, beneficially owns 4,751,706 shares of Common Stock, representing 24.0% of the class. The filing lists sole voting and sole dispositive power over the same 4,751,706 shares. The signature date is 04/29/2026.

Insights

Corporate Governance Analyst

Major insider holding disclosed — 24.0% stake by CTO/Director.

The filing shows 4,751,706 shares and 24.0% beneficial ownership by an executive with sole voting and dispositive power. This level of ownership indicates significant insider alignment with shareholder outcomes and potential influence over corporate votes.

Watch for subsequent filings that might show changes in this stake or related party transactions; timing and actions are shown as of the 04/29/2026.

Securities Compliance Specialist

Disclosure is an amendment to Schedule 13G, updating beneficial ownership details.

The amendment lists the issuer, CUSIP, and exact voting/dispositive powers, satisfying Section 13 reporting format. The filing is administrative in nature and aligns with beneficial ownership disclosure requirements.

No trading direction or transaction is reported in this excerpt; subsequent filings may disclose changes.

Key Figures

Beneficial ownership: 4,751,706 shares Percent of class: 24.0% Sole voting power: 4,751,706.00 +2 more

5 metrics

Beneficial ownership 4,751,706 shares Amount beneficially owned reported on Schedule 13G/A

Percent of class 24.0% Percent of class reported in Item 4(b)

Sole voting power 4,751,706.00 Sole power to vote as reported in Item 4(c)(i)

Sole dispositive power 4,751,706.00 Sole power to dispose as reported in Item 4(c)(iii)

Signature date 04/29/2026 Date of signature for the amendment

Key Terms

Schedule 13G/A, Beneficially owned, Dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment to Schedule 13G/A reports beneficial ownership details"

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.

Beneficially owned regulatory

"Amount beneficially owned: 4,751,706 (b) Percent of class: 24.0%"

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.

Dispositive power legal

"Sole Dispositive Power 4,751,706.00 appears in Item 4"

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.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Rank One Computing Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

753040104

(CUSIP Number)

02/20/2026

(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): 753040104

1

Names of Reporting Persons

Joshua Klontz

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 4,751,706.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,751,706.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,751,706.00

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)

24.0 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Rank One Computing Corp
(b)	Address of issuer's principal executive offices: 1290 Broadway, Suite 1200 Denver, CO 80203 (303) 317-6118
Item 2.
(a)	Name of person filing: Joshua Klontz
(b)	Address or principal business office or, if none, residence: 1290 Broadway, Suite 1200 Denver, CO 80203
(c)	Citizenship: UNITED STATES
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 753040104
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: 4,751,706
(b)	Percent of class: 24.0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,751,706
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 4,751,706
	(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.
	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.

Joshua Klontz

Signature:	/s/ Joshua Klontz
Name/Title:	Joshua Klontz / CTO & Director
Date:	04/29/2026

FAQ

What stake does Joshua Klontz hold in Rank One Computing Corp (ROC)?

He beneficially owns 4,751,706 shares, equal to 24.0% of the class. The filing lists his sole voting and dispositive power over those shares and identifies his role as CTO & Director, with the disclosure signed on 04/29/2026.

Does the Schedule 13G/A show who controls voting rights for those shares?

Yes, the filing reports sole voting power over 4,751,706 shares. It also reports sole dispositive power for the same amount, indicating exclusive authority to vote and dispose of those shares.

Is this filing a purchase or sale transaction by Joshua Klontz?

No purchase or sale is reported in this amendment. The Schedule 13G/A excerpt only discloses beneficial ownership counts and voting/dispositive powers; it does not describe any transaction direction or trade in the provided text.

What date does the ownership disclosure reflect?

The disclosure is signed and dated 04/29/2026. That date appears as the signature date for the amendment reporting the 4,751,706 shares and 24.0% beneficial ownership figure.

Which security class and CUSIP are covered by this filing?

The filing covers Common Stock of Rank One Computing Corp with CUSIP 753040104. Those identifiers are provided in Item 2 and on the cover information within the amendment.