QRHC

SEC source: 0001104659-23-112180 · tm2329321d1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,413,942

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock of the Issuer were purchased in multiple transactions at prices ranging from $7.22-$7.25. 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 of Common Stock purchased at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 822,344 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 326,795 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F6 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-112180 · tm2329321d1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,260,640

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock of the Issuer were purchased in multiple transactions at prices ranging from $7.22-$7.25. 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 of Common Stock purchased at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,260,640 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-112180 · tm2329321d1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,254,779

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer") were purchased in multiple transactions at prices ranging from $7.24-$7.25. 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 of Common Stock purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,260,640 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-111439 · tm2329146-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,253,768

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,253,768 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-111439 · tm2329146-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,407,791

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer") were purchased in multiple transactions at prices ranging from $7.24-$7.25. 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 of Common Stock purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 818,575 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 324,413 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-111439 · tm2329146-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,253,668

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer") were purchased in multiple transactions at prices ranging from $7.24-$7.25. 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 of Common Stock purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,253,768 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-110797 · tm2328972-1_4seq1.xml · nonDerivative · entry 4

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,406,620

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 817,858 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 323,959 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-110797 · tm2328972-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,252,553

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,252,553 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-110797 · tm2328972-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,403,229

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer") were sold in multiple transactions at prices ranging from $7.22-$7.24. 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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 817,858 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 323,959 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-110797 · tm2328972-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,249,323

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer") were sold in multiple transactions at prices ranging from $7.22-$7.24. 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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,252,553 shares of Common Stock of the Issuer. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-110115 · tm2328777-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,392,482

F2 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $7.20-$7.25. 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 of Common Stock sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 809,194 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 318,485 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-110115 · tm2328777-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,239,083

F2 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $7.20-$7.25. 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 of Common Stock sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,239,083 shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer"). Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-110115 · tm2328777-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,226,653

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,239,083 shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation (the "Issuer"). Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-109405 · tm2328543-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,226,453

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,226,453 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns

SEC source: 0001104659-23-109405 · tm2328543-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,226,272

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,226,453 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns

SEC source: 0001104659-23-106829 · tm2327617-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,224,996

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,224,996 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-106829 · tm2327617-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,379,435

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.23-$7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 801,199 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 313,433 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-106829 · tm2327617-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,224,808

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.23-$7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,224,996 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0000921895-23-002249 · form412364002_09262023.xml · derivative · entry 4

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,583

Underlying: Common Stock · 23,646 shares

Expires 2026-10-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option, representing a right to purchase a total of 62,500 shares, is exercisable in five equal annual installments beginning on October 3, 2017, which was the first anniversary of the date on which the option was granted.

SEC source: 0000921895-23-002249 · form412364002_09262023.xml · nonDerivative · entry 2

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,511

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.36 to $7.635, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares sold at each separate price such shares were sold.

SEC source: 0000921895-23-002249 · form412364002_09262023.xml · nonDerivative · entry 1

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,157

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These shares represent the number of shares exercised by the Reporting Person.

SEC source: 0001104659-23-099702 · tm2325886-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,220,635

F2 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.24 - $7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,220,635 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-099702 · tm2325886-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,219,225

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,220,635 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-097766 · tm2325376-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,218,949

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,218,949 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-097766 · tm2325376-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,375,054

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.24 - $7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 798,515 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 311,736 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-097766 · tm2325376-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,218,583

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.24 - $7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,218,949 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · derivative · entry 10

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,229

Underlying: Common Stock · 24,271 shares

Expires 2026-10-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: The option, representing a right to purchase a total of 62,500 shares, is exercisable in five equal annual installments beginning on October 3, 2017, which was the first anniversary of the date on which the option was granted.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · derivative · entry 9

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,500 shares

Expires 2027-10-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option, representing a right to purchase a total of 10,500 shares, is exercisable in five equal annual installments beginning on October 2, 2018, which was the first anniversary of the date on which the option was granted.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · derivative · entry 8

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 34,000 shares

Expires 2029-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option, representing a right to purchase a total of 100,000 shares, is exercisable in three equal annual installments beginning on February 12, 2020, which was the first anniversary of the date on which the option was granted.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 6

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,511

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.10 to $7.455, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares sold at each separate price such shares were sold.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 5

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,782

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These shares represent the number of shares exercised by the Reporting Person.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 4

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,511

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.10 to $7.455, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares sold at each separate price such shares were sold.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 3

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,011

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These shares represent the number of shares exercised by the Reporting Person.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 2

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,511

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.10 to $7.455, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares sold at each separate price such shares were sold.

SEC source: 0000921895-23-002109 · form412364swe_09012023.xml · nonDerivative · entry 1

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,511

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These shares represent the number of shares exercised by the Reporting Person.

SEC source: 0001104659-23-093958 · tm2324292-1_4seq1.xml · nonDerivative · entry 4

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,372,494

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 796,946 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 310,745 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-093958 · tm2324292-1_4seq1.xml · nonDerivative · entry 3

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,216,143

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,216,143 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0001104659-23-093958 · tm2324292-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,371,383

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.24 - $7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 796,946 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 310,745 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F5 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-093958 · tm2324292-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · 10% owner

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,215,085

F1 · price: The price reported in Column 4 is a weighted average price. These shares of common stock, $0.001 par value per share ("Common Stock") were sold in multiple transactions at prices ranging from $7.24 - $7.25. The Reporting Person undertakes to provide to Quest Resource Holding Corporation (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 of Common Stock sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.direct: The Reporting Person directly beneficially owns 1,216,143 shares of Common Stock. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0000921895-23-002049 · form412364tom_08182023.xml · derivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0000921895-23-002046 · form412364fri_08182023.xml · derivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0000921895-23-002048 · form412364nol_08182023.xml · derivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0000921895-23-002047 · form412364mil_08182023.xml · derivative · entry 1

Miller Ronald L. Jr. · CIK 0001560790 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0000921895-23-002045 · form412364dun_08182023.xml · derivative · entry 1

Dunning Audrey · CIK 0001800836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0000921895-23-002044 · form412364cul_08182023.xml · derivative · entry 1

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,176

Underlying: Common Stock · 10,176 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

F2 · derivative.exercise_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

F2 · derivative.expiration_date: The Reporting Person received restricted stock units granted under the Issuer's 2012 Incentive Compensation Plan. The restricted stock units shall vest and become exercisable on the first anniversary of the date on which they were granted.

SEC source: 0001104659-23-093109 · tm2324070-1_4seq1.xml · nonDerivative · entry 2

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · Director

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,370,003

F2 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 795,419 shares of Common Stock, which are directly beneficially owned by Wynnefield Partners Small Cap Value, L.P., as members of a group under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Wynnefield Partners Small Cap Value, L.P., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital Management, LLC, as the sole general partner of Wynnefield Partners Small Cap Value, L.P., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value L.P. directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Partners Small Cap Value, L.P. directly beneficially owns.

F3 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 309,781 shares of Common Stock, which are directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd., as members of a group under Section 13(d) of the Exchange Act. Wynnefield Small Cap Value Offshore Fund, Ltd., which maintains offices at the same address as the Reporting Person, is filing this statement jointly with the Reporting Person. Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small Cap Value Offshore Fund, Ltd., has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns. Nelson Obus and Joshua Landes, as principal executive officers of Wynnefield Capital, Inc., have an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Small Cap Value Offshore Fund, Ltd. directly beneficially owns.

F4 · ownership.nature: The Reporting Person has an indirect beneficial ownership interest in 264,803 shares of Common Stock, which are directly beneficially owned by Wynnefield Capital, Inc. Profit Sharing Plan, as members of a group under Section 13(d) of the Exchange Act. Wynnefield Capital, Inc. Profit Sharing Plan, which maintains offices at the same address as the Reporting Person, is filing this Form jointly with the Reporting Person. Mr. Obus and Mr. Landes, as co-trustees, has the power to vote and dispose of Wynnefield Capital, Inc. Profit Sharing Plan's investments in securities and has an indirect beneficial ownership interest in the shares of Common Stock that Wynnefield Capital, Inc. Profit Sharing Plan directly beneficially owns.

SEC source: 0001104659-23-093109 · tm2324070-1_4seq1.xml · nonDerivative · entry 1

WYNNEFIELD PARTNERS SMALL CAP VALUE LP I · CIK 0001251565 · 10% owner

WYNNEFIELD PARTNERS SMALL CAP VALUE LP · CIK 0000899083 · 10% owner

WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND LTD · CIK 0001030806 · 10% owner

WYNNEFIELD CAPITAL MANAGEMENT LLC · CIK 0001056835 · 10% owner

WYNNEFIELD CAPITAL INC · CIK 0001251567 · 10% owner

Wynnefield Capital, Inc. Profit Sharing Plan · CIK 0001289453 · Director

OBUS NELSON · CIK 0001017043 · 10% owner

LANDES JOSHUA · CIK 0001251568 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,213,770

F1 · ownership.direct: The Reporting Person directly beneficially owns 1,213,770 shares of common stock, $0.001 par value per share ("Common Stock") of Quest Resource Holding Corporation. Wynnefield Capital Management, LLC, as the sole general partner of the Reporting Person, has an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns. Nelson Obus and Joshua Landes, as co-managing members of Wynnefield Capital Management, LLC, have an indirect beneficial ownership interest in the shares of Common Stock that the Reporting Person directly beneficially owns.

SEC source: 0000921895-23-001537 · form412364swe_06162023.xml · derivative · entry 7

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 29,014 shares

Expires 2030-03-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option, representing a right to purchase a total of 105,000 shares, is exercisable in three equal annual installments beginning on March 16, 2021, which was the first anniversary of the date on which the option was granted.

SEC source: 0000921895-23-001537 · form412364swe_06162023.xml · nonDerivative · entry 4

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,511

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.67 to $5.98, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares sold at each separate price such shares were sold.

SEC source: 0000921895-23-001537 · form412364swe_06162023.xml · nonDerivative · entry 3

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,525

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These shares represent the number of shares exercised by the Reporting Person.