Daniel Kaufman reports 2.19M shares in Arq (NASDAQ: ARQ)

Rhea-AI Filing Summary

Arq reports that Daniel Kaufman beneficially owns 2,191,278 shares of Common Stock, representing 5.12% of the class as reported on 03/11/2026. Kaufman reports sole voting and dispositive power over these shares.

Insights

Corporate Governance Specialist

Major shareholder disclosure signals passive stake above 5% threshold.

Daniel Kaufman’s reported 5.12% beneficial ownership triggers public disclosure requirements and places him among larger shareholders with sole voting and dispositive power over 2,191,278 shares. This stake may warrant monitoring for any Schedule 13D filings if intentions change.

Material follow-ups would include any subsequent amendments or a shift from Schedule 13G to 13D; timing not provided in the excerpt.

Equity Markets Analyst

5.12% holding is a meaningful position but not controlling.

A 2,191,278-share position is large enough to be noticed by other investors yet remains non‑controlling. The report documents sole voting/dispositive authority, which clarifies execution rights for these shares.

Market impact depends on future transactions or disclosures; subsequent filings would reveal any active trading or strategic intent.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Arq

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

03/11/2026

(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)

SCHEDULE 13G

CUSIP Number(s):

1

Names of Reporting Persons

Daniel Kaufman

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 2,191,278.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,191,278.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,191,278.00

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)

5.12 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Arq
(b)	Address of issuer's principal executive offices: 8051 E. Maplewood Ave., Suite 210, Greenwood Village, CO, 80111
Item 2.
(a)	Name of person filing: Daniel Kaufman
(b)	Address or principal business office or, if none, residence: 2158 Park Boulevard, San Juan, Puerto Rico, 00913
(c)	Citizenship: United States
(d)	Title of class of securities: Common Stock, $0.001 par value
(e)	CUSIP No.: 00770C101
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: 2,191,278
(b)	Percent of class: 5.12%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,191,278
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,191,278
	(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:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

Daniel Kaufman

Signature:	/s/ Daniel Kaufman
Name/Title:	Daniel Kaufman, Individual Investor
Date:	03/12/2026

Exhibit Information

None

FAQ

What stake does Daniel Kaufman report in ARQ?

Daniel Kaufman reports beneficial ownership of 2,191,278 shares, representing 5.12% of Arq's Common Stock as of 03/11/2026. The disclosure shows he has sole voting and dispositive power over these shares.

Does Daniel Kaufman have voting control over his ARQ shares?

Yes. The report states Kaufman has sole voting power and sole dispositive power for 2,191,278 shares. That indicates he can vote and direct disposition of the shares he beneficially owns.

What form was filed to report this ownership in ARQ?

The ownership is reported on a Schedule 13G dated 03/11/2026. Schedule 13G is the prescribed disclosure for certain passive or qualifying investors reporting beneficial ownership above a regulatory threshold.

Will this Schedule 13G trigger further filings from Kaufman?

A further filing could occur if Kaufman’s purpose or level of control changes. The report notes a 5.12% stake; if intentions shift toward activism or exceed thresholds for Schedule 13D, an amended filing would be required.