Quest Resource Holding Corp — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Quest Resource Holding Corp (QRHC)
CIK: 0001442236
Period of Report: 2026-02-28

Reporting Person: FRIEDBERG DANIEL M. (Director, 10% Owner)
Reporting Person: Hampstead Park Capital Management, LLC (10% Owner)
Reporting Person: Hampstead Park Environmental Services Investment Fund LLC (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-28	Common Stock	A	8532	$1.76	Acquired	71160	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	40585	Direct
Common Stock	2842353	Indirect

Footnotes

F1: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F2: The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 53,007 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F3: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 20,585 shares of common stock beneficially owned by Mr. Friedberg.

F4: This Form 4 is filed jointly by Hampstead Park Environmental Services Investment Fund LLC ("Hampstead Park Environmental"), Daniel Friedberg and Hampstead Park Capital Management, LLC ("Hampstead Park Capital"). Hampstead Park Capital is the sole member of Hampstead Park Environmental, and Mr. Friedberg is the Chief Executive Officer of Hampstead Park Capital; each may therefore be deemed to control Hampstead Park Environmental. In addition, Mr. Friedberg is a Director of the Issuer.