Quest Resource (QRHC) director adds 5,000 shares in open-market stock purchase

Rhea-AI Filing Summary

Quest Resource Holding Corp director Glenn Culpepper bought additional shares of the company’s stock. On March 16, 2026, he made an open-market purchase of 5,000 shares of common stock at a price of $1.16 per share.

Following this transaction, Culpepper directly owns 61,585 shares of common stock. His holdings also include 20,000 restricted stock units scheduled to fully vest on August 13, 2026, plus 15,000 deferred stock units and 6,629 additional deferred stock units that will convert into common shares upon his separation from service.

Insights

Equity compensation and insider-trading analyst

Director’s open-market share purchase modestly increases direct ownership and signals confidence.

Director Glenn Culpepper executed an open-market purchase of 5,000 Quest Resource Holding Corp shares at $1.16 each on March 16, 2026. Open-market buys generally indicate a voluntary decision to add personal exposure rather than a routine equity grant.

After the trade, he directly holds 61,585 common shares, alongside 20,000 restricted stock units that vest on August 13, 2026 and a combined 21,629 deferred stock units issuable at separation. The purchased amount is modest relative to his overall equity exposure, so this appears as a routine incremental increase rather than a transformative move.

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
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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^*

Culpepper Glenn

(Last) (First) (Middle)

C/O QUEST RESOURCE HOLDING CORPORATION

433 E. LAS COLINAS BOULEVARD, SUITE 675

(Street)

IRVING TEXAS 75039

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Quest Resource Holding Corp [ QRHC ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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	03/16/2026		P		5,000	A	$1.16	61,585(1)	D
Common Stock								21,629(2)	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. Includes (a) 20,000 restricted stock units that are scheduled to fully vest on August 13, 2026 and (b) 41,585 shares of common stock beneficially owned by the Reporting Person.

2. The reported securities include (a) 15,000 deferred stock units ("DSUs") granted under the Issuer's 2012 Incentive Compensation Plan and (b) 6,629 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

	/s/ Brett W. Johnston, as Attorney-in-Fact	03/18/2026
	** 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)

FAQ

What insider transaction did Glenn Culpepper report for Quest Resource Holding Corp (QRHC)?

Glenn Culpepper reported buying 5,000 shares of Quest Resource Holding Corp common stock in the open market at $1.16 per share on March 16, 2026. This transaction increases his direct ownership stake in the company.

How many Quest Resource Holding Corp (QRHC) shares does Glenn Culpepper hold after this Form 4?

After the reported transaction, Glenn Culpepper directly owns 61,585 shares of Quest Resource Holding Corp common stock. This figure reflects his position immediately following the 5,000-share open-market purchase at $1.16 per share on March 16, 2026.

Did Glenn Culpepper’s Quest Resource Holding Corp (QRHC) transaction involve a purchase or a sale?

The filing shows an open-market purchase by Glenn Culpepper. He bought 5,000 shares of Quest Resource Holding Corp common stock at $1.16 per share on March 16, 2026, with no reported stock sales in this Form 4 submission.

What restricted stock units does Glenn Culpepper hold in Quest Resource Holding Corp (QRHC)?

Glenn Culpepper holds 20,000 restricted stock units in Quest Resource Holding Corp that are scheduled to fully vest on August 13, 2026. These RSUs represent additional future common shares, separate from his directly owned 61,585 shares of common stock.

What deferred stock units (DSUs) does Glenn Culpepper have from Quest Resource Holding Corp (QRHC)?

He holds 15,000 deferred stock units granted under the 2012 Incentive Compensation Plan and 6,629 DSUs under the 2024 Incentive Compensation Plan. Shares underlying these DSUs will be issued when he separates from service with Quest Resource Holding Corp.

Was there any indication of a trading plan in Glenn Culpepper’s Quest Resource Holding Corp (QRHC) Form 4?

The provided information describes an open-market purchase of 5,000 Quest Resource Holding Corp shares at $1.16 but does not reference a Rule 10b5-1 or other pre-arranged trading plan in the summarized data for this Form 4.