Abiopharma

🔍 FRIEDBERG DANIEL M. (Director)

Company: Quest Resource Holding Corp (QRHC)

Report Date: 2026-05-31

Detailed Transactions and Holdings:

• Acquired 23,661 shares of Common Stock at $1.18 per share (Direct)
  Date: 2026-05-31 | Code: A | equity_swap_involved: 0 | shares_owned_after: 72,746.00 | transaction_form_type: 4 | Footnotes: F1, F2
• Holds 0 shares of Common Stock (Direct)
  Date: 2026-05-31 | Code: H | shares_owned_after: 97,068.00 | Footnotes: F3
• Holds 0 shares of Common Stock (Direct)
  Date: 2026-05-31 | Code: H | nature_of_ownership: By: Hampstead Park Environmental Services Investment Fund LLC | shares_owned_after: 2,842,353.00 | Footnotes: F4

Footnotes:

• F1: These reported securities represent restricted stock units ("RSUs") granted on May 31, 2026 under the Issuer's 2024 Incentive Compensation Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting. The RSUs are scheduled to vest on May 31, 2027.
• F2: Includes (a) 23,661 RSUs that are scheduled to fully vest on May 31, 2027, (b) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (c) 29,085 shares of common stock beneficially owned by Mr. Friedberg.
• F3: The reported securities include (a) 18,153 deferred stock units ("DSUs") granted under the Issuer's 2012 Incentive Compensation Plan and (b) 78,915 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.
• 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.