Arq CTO buys 10,000 shares in open market

Arq, Inc. Chief Technology Officer buys additional shares in open-market trade.

Rhea-AI Filing Summary

Arq, Inc. Chief Technology Officer buys additional shares in open-market trade. Joseph M. Wong purchased 10,000 shares of Arq common stock in the open market at a weighted average price of $1.89 per share, with individual trade prices ranging from $1.885 to $1.89. Following this transaction, he directly owns 400,686 common shares.

Insider Trade Summary

Net Buyer: 10,000 shares

Net Buy 1 txn

Insider Wong Joseph M

Role Chief Technology Officer

Bought 10,000 shs ($19K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	10,000	$1.89	$19K

Holdings After Transaction: Common Stock — 400,686 shares (Direct)

Footnotes (1)

1. F1. This price is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.8850 to $1.8900, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this Form 4.

FAQ

What insider transaction did Arq (ARQ) report for Joseph M. Wong?

Arq reported that Chief Technology Officer Joseph M. Wong purchased 10,000 shares of common stock. The transaction was an open-market buy, indicating he increased his direct ownership stake in the company’s shares through a routine purchase.

At what price did Arq (ARQ) insider Joseph M. Wong buy shares?

Joseph M. Wong bought 10,000 Arq common shares at a weighted average price of $1.89. According to the disclosure, the individual trades occurred in a price range between $1.885 and $1.89 per share during the transaction.

How many Arq (ARQ) shares does Joseph M. Wong hold after this Form 4 trade?

After the reported open-market purchase, Joseph M. Wong directly owns 400,686 shares of Arq common stock. This total reflects his holdings immediately following the 10,000-share acquisition disclosed in the Form 4 insider transaction report.

What is the transaction code used in the Arq (ARQ) Form 4 for Joseph M. Wong?

The Form 4 lists transaction code “P” for Joseph M. Wong’s trade, indicating a purchase in the open market or a private transaction. This code confirms the filing reflects a straightforward buy rather than an option exercise or other type of transaction.

Was Joseph M. Wong’s Arq (ARQ) share purchase made in multiple trades?

Yes. The filing explains the 10,000 shares were acquired through multiple trades. These trades took place at prices between $1.885 and $1.89 per share, resulting in a weighted average purchase price of $1.89 for the reported transaction.

Does the Arq (ARQ) Form 4 show any derivative transactions for Joseph M. Wong?

No derivative transactions are reported for Joseph M. Wong in this Form 4. The filing only records a non-derivative open-market purchase of 10,000 common shares, with no options, warrants, or other derivative securities listed in the summary.

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Accepted by SEC EDGAR 03/19/2026 - 04:30 PM Learn about SEC filing dates

SEC 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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Wong Joseph M

(Last) (First) (Middle)

8051 E MAPLEWOOD AVE, STE 210

C/O ARQ, INC.

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/17/2026		P		10,000	A	$1.89(1)	400,686	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This price is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.8850 to $1.8900, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this Form 4.

Remarks:

	/s/ Joseph M Wong	03/19/2026
	** 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)