SEC FORM 4

SEC FORM 4SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Rasmus Robert E.

(Last)

(First)

(Middle)

C/O ARQ, INC.

8051 E MAPLEWOOD AVE STE 210

(Street)

GREENWOOD VILLAGE

COLORADO

80111

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Arq, Inc. [ ARQ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	07/17/2026		D			400,000	⁽²⁾	07/17/2026	Common Stock	400,000	$0	0	D
Restricted Stock Units	⁽¹⁾	07/17/2026		A		400,000		⁽²⁾	07/17/2029	Common Stock	400,000	$0	400,000	D
Restricted Stock Units	⁽³⁾	07/23/2026		A		600,000		⁽⁴⁾	⁽⁴⁾	Common Stock	600,000	$0	600,000	D
Restricted Stock Units	⁽³⁾	07/23/2026		A		600,000		⁽⁵⁾	⁽⁵⁾	Common Stock	600,000	$0	600,000	D

Explanation of Responses:

1. Represents restricted stock units ("RSUs") granted to Mr. Rasmus as an employment inducement award (the "Inducement Award"). Each RSU comprising the Inducement Award represents the right to receive one share of the Issuer's Common Stock upon vesting and settlement.

2. The two reported transactions involved an amendment of the Inducement Award, originally granted to Mr. Rasmus on July 17, 2023, to extend the expiration date of the Inducement Award from July 17, 2026, to July 17, 2029. The Inducement Award amendment may be deemed a cancellation of the original Inducement Award and grant of a replacement Inducement Award. Of the 400,000 RSUs comprising the Inducement Award, 250,000 RSUs shall vest when the 30-day volume weighted average price of the Issuer's Common Stock (the "30-Day VWAP") equals $10.00 per share and 150,000 RSUs shall vest when the 30-Day VWAP equals $15.00 per share, in each case, prior to July 17, 2029.

3. Represents RSUs granted to Mr. Rasmus under the Issuer's 2026 Omnibus Incentive Plan. Each RSU represents the right to receive one share of the Issuer's Common Stock upon vesting and settlement.

4. 200,000 RSUs vest when the 30-Day VWAP equals $3.00 per share; 200,000 RSUs vest when the 30-Day VWAP equals $6.00 per share; and 200,000 RSUs vest when the 30-Day VWAP equals $9.00 per share, in each case, prior to the third anniversary of the date of grant. If the applicable 30-Day VWAP threshold is achieved prior to the first anniversary of the grant date, the RSUs that have become earned upon achievement of such threshold shall not vest until the first anniversary of the grant date.

5. The RSUs vest in two equal installments on each of July 23, 2028, and July 23, 2029.

Remarks:

	/s/ Robert E. Rasmus	07/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)