Benjamin Klein (ROC) reports 1,416,716 shares; holds 7.4% stake (04/29/2026)

Rhea-AI Filing Summary

Rank One Computing Corp Schedule 13G/A: Benjamin Klein reports beneficial ownership of 1,416,716 shares of Common Stock, representing 7.4% of the class. The filing lists sole voting power and sole dispositive power over all 1,416,716 shares. The signature date on the amendment is 04/29/2026.

This amendment updates the beneficial‑ownership disclosure for Mr. Klein and records his ownership level and voting/dispositive powers as stated above.

Key Figures

Shares beneficially owned: 1,416,716 shares Percent of class: 7.4% CUSIP: 753040104 +1 more

4 metrics

Shares beneficially owned 1,416,716 shares Reported by Benjamin Klein in Schedule 13G/A

Percent of class 7.4% Percent of Common Stock reported in filing

CUSIP 753040104 Common Stock CUSIP shown on the amendment

Signature date 04/29/2026 Amendment signature date

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power, Sole voting power

4 terms

Schedule 13G/A regulatory

"Amendment No. 1 ) Rank One Computing Corp Common Stock"

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 financial

"Item 4. | Ownership (a) | Amount beneficially owned: 1,416,716"

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

" (iii) Sole power to dispose or to direct the disposition of: 1,416,716"

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.

Sole voting power regulatory

" (i) Sole power to vote or to direct the vote: 1,416,716"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

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

Benjamin Klein

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 1,416,716.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,416,716.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,416,716.00

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)

7.4 %

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: Benjamin Klein
(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: 1,416,716
(b)	Percent of class: 7.4%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,416,716
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,416,716
	(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.

Benjamin Klein

Signature:	/s/ Benjamin Klein
Name/Title:	Benjamin Klein
Date:	04/29/2026

FAQ

What did ROC's Schedule 13G/A filed by Benjamin Klein disclose?

It discloses beneficial ownership of 1,416,716 shares (7.4%). The amendment shows Mr. Klein has sole voting and dispositive power over those shares and is signed on 04/29/2026.

Does Benjamin Klein control voting of ROC shares?

Yes. The filing states Mr. Klein has sole power to vote or direct the vote for 1,416,716 shares, indicating direct control of voting for that 7.4% stake as reported.

How much of ROC does 1,416,716 shares represent?

The filing reports it represents 7.4% of the class. That percentage is the disclosed stake in Common Stock per the Schedule 13G/A amendment signed on 04/29/2026.

When was the Schedule 13G/A by Benjamin Klein signed?

The amendment is signed on 04/29/2026. The signature block lists Benjamin Klein and the certification section is marked Not Applicable in the excerpt provided.

What CUSIP and security class are reported in the filing?

Common Stock, CUSIP 753040104. The cover information in the amendment identifies the class as Common Stock and provides the CUSIP number for reference.