SONM

SEC source: 0001213900-21-015456 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRC Partners Opportunity Fund, L.P.

Disclosed balance after: 5,743,325

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), and Bryant R. Riley. BRPGP is a subsidiary of BRCM and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRPI.

F2 · ownership.nature: Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRF, BRPLP, and BRPI. Each of BRF, BRPLP, BRPGP, BRCM, and BRPI (collectively, the "B. Riley Entities") and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein.

SEC source: 0001213900-21-015456 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRC Partners Opportunity Fund, L.P.

Disclosed balance after: 5,809,493

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), and Bryant R. Riley. BRPGP is a subsidiary of BRCM and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRPI.

F2 · ownership.nature: Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRF, BRPLP, and BRPI. Each of BRF, BRPLP, BRPGP, BRCM, and BRPI (collectively, the "B. Riley Entities") and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein.

SEC source: 0001209191-20-050333 · doc4.xml · nonDerivative · entry 1

TIRVA ROBERT L. · CIK 0001438223 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 737,174

F1 · shares: Shares sold by Reporting Person pursuant to mandatory sale provision of the relevant restricted share unit ("RSU") grant requiring the sale of sufficient shares to cover withholding taxes upon vesting of RSUs.

F2 · balance_after: Includes 621,375 RSUs

SEC source: 0001209191-20-035998 · doc4.xml · nonDerivative · entry 1

SWENSON SUSAN · CIK 0001112671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

SEC source: 0001209191-20-036005 · doc4.xml · nonDerivative · entry 3

Wilkinson Thomas Wiley · CIK 0001667502 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 727,500

F4 · shares: Represents shares of Common Stock purchased directly from the underwriters in an underwritten public offering conducted by the Issuer.

SEC source: 0001209191-20-036005 · doc4.xml · nonDerivative · entry 2

Wilkinson Thomas Wiley · CIK 0001667502 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 527,500

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

F3 · shares: This grant is contingent upon approval by the Issuer's stockholders of an increase in the number of shares reserved for issuance under the Issuer's 2019 Equity Incentive Plan.

SEC source: 0001209191-20-036005 · doc4.xml · nonDerivative · entry 1

Wilkinson Thomas Wiley · CIK 0001667502 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,500

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

F2 · balance_after: Includes 2,500 shares acquired by the reporting person under the Issuer's 2019 Employee Stock Purchase Plan on May 15, 2020.

SEC source: 0001209191-20-036002 · doc4.xml · nonDerivative · entry 1

Johnson Jeffrey D · CIK 0001775039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

SEC source: 0001209191-20-036001 · doc4.xml · nonDerivative · entry 2

Hochschild Maurice · CIK 0001775162 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,000

F2 · shares: Represents shares of Common Stock purchased directly from the underwriters in an underwritten public offering conducted by the Issuer.

SEC source: 0001209191-20-036001 · doc4.xml · nonDerivative · entry 1

Hochschild Maurice · CIK 0001775162 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

SEC source: 0001209191-20-035999 · doc4.xml · nonDerivative · entry 2

Howe Alan B · CIK 0001296812 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,333

F2 · shares: Represents shares of Common Stock purchased directly from the underwriters in an underwritten public offering conducted by the Issuer.

SEC source: 0001209191-20-035999 · doc4.xml · nonDerivative · entry 1

Howe Alan B · CIK 0001296812 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

SEC source: 0001209191-20-035995 · doc4.xml · nonDerivative · entry 1

Kneuer John · CIK 0001512329 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,147

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

SEC source: 0001209191-20-035993 · doc4.xml · nonDerivative · entry 3

TIRVA ROBERT L. · CIK 0001438223 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 745,000

F4 · shares: Represents shares of Common Stock purchased directly from the underwriters in an underwritten public offering conducted by the Issuer.

SEC source: 0001209191-20-035993 · doc4.xml · nonDerivative · entry 2

TIRVA ROBERT L. · CIK 0001438223 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 645,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

F3 · shares: This grant is contingent upon approval by the Issuer's stockholders of an increase in the number of shares reserved for issuance under the Issuer's 2019 Equity Incentive Plan.

SEC source: 0001209191-20-035993 · doc4.xml · nonDerivative · entry 1

TIRVA ROBERT L. · CIK 0001438223 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 545,000

F1 · shares: Represents the grant of restricted stock units that vest in four equal annual installments beginning on June 9, 2020.

F2 · balance_after: Includes 2,500 shares acquired by the reporting person under the Issuer's 2019 Employee Stock Purchase Plan on May 15, 2020.

SEC source: 0001213900-20-016203 · ownership.xml · derivative · entry 12

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPLP

Disclosed balance after: 0

Underlying: Common Stock · 3,560,167 shares

Expires 2022-09-21

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.

F2 · kind: Kenneth M. Young, a member of the Board of Directors of the Issuer, is the President of BRF and the Chief Executive Officer of BRPI and was elected to the Board of Directors of the Issuer as a representative of BRF, BRPLP, BRPGP, BRCM, BRPI and Bryant R. Riley. As a result, Kenneth M. Young is a director by deputization for Section 16 purposes.

F9 · kind: On June 1, the Issuer and BRPI entered into an amendment to the Convertible Promissory Note pursuant to which the Issuer agreed that, contingent upon the completion of the Public Offering, the Convertible Promissory Note would be extinguished for (i) the payment of $4,000,000 in cash and (2) a number of shares of Issuer common stock determined by dividing the remaining principal amount and accrued interest by the price to be determined in the Public Offering. The Public Offering closed on June 9, 2020 at a price per share of Issuer common stock of $0.75. As a result of the amendment of the Convertible Promissory Note and the completion of the Public Offering, each of BRPI and BRPLP were deemed to have disposed to the Issuer their respective portions of the derivate security represented by the Convertible Promissory Note in exchange for the issuance by the Issuer of a derivative security represented by the Convertible Promissory Note as amended to reflect the $0.75 conversion price, which security was immediately thereafter converted for the underlying shares of Issuer common stock.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F9 · ownership.nature: On June 1, the Issuer and BRPI entered into an amendment to the Convertible Promissory Note pursuant to which the Issuer agreed that, contingent upon the completion of the Public Offering, the Convertible Promissory Note would be extinguished for (i) the payment of $4,000,000 in cash and (2) a number of shares of Issuer common stock determined by dividing the remaining principal amount and accrued interest by the price to be determined in the Public Offering. The Public Offering closed on June 9, 2020 at a price per share of Issuer common stock of $0.75. As a result of the amendment of the Convertible Promissory Note and the completion of the Public Offering, each of BRPI and BRPLP were deemed to have disposed to the Issuer their respective portions of the derivate security represented by the Convertible Promissory Note in exchange for the issuance by the Issuer of a derivative security represented by the Convertible Promissory Note as amended to reflect the $0.75 conversion price, which security was immediately thereafter converted for the underlying shares of Issuer common stock.

SEC source: 0001213900-20-016203 · ownership.xml · derivative · entry 11

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPI

Disclosed balance after: 0

Underlying: Common Stock · 4,666,667 shares

Expires 2022-09-21

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.

F2 · kind: Kenneth M. Young, a member of the Board of Directors of the Issuer, is the President of BRF and the Chief Executive Officer of BRPI and was elected to the Board of Directors of the Issuer as a representative of BRF, BRPLP, BRPGP, BRCM, BRPI and Bryant R. Riley. As a result, Kenneth M. Young is a director by deputization for Section 16 purposes.

F9 · kind: On June 1, the Issuer and BRPI entered into an amendment to the Convertible Promissory Note pursuant to which the Issuer agreed that, contingent upon the completion of the Public Offering, the Convertible Promissory Note would be extinguished for (i) the payment of $4,000,000 in cash and (2) a number of shares of Issuer common stock determined by dividing the remaining principal amount and accrued interest by the price to be determined in the Public Offering. The Public Offering closed on June 9, 2020 at a price per share of Issuer common stock of $0.75. As a result of the amendment of the Convertible Promissory Note and the completion of the Public Offering, each of BRPI and BRPLP were deemed to have disposed to the Issuer their respective portions of the derivate security represented by the Convertible Promissory Note in exchange for the issuance by the Issuer of a derivative security represented by the Convertible Promissory Note as amended to reflect the $0.75 conversion price, which security was immediately thereafter converted for the underlying shares of Issuer common stock.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F9 · ownership.nature: On June 1, the Issuer and BRPI entered into an amendment to the Convertible Promissory Note pursuant to which the Issuer agreed that, contingent upon the completion of the Public Offering, the Convertible Promissory Note would be extinguished for (i) the payment of $4,000,000 in cash and (2) a number of shares of Issuer common stock determined by dividing the remaining principal amount and accrued interest by the price to be determined in the Public Offering. The Public Offering closed on June 9, 2020 at a price per share of Issuer common stock of $0.75. As a result of the amendment of the Convertible Promissory Note and the completion of the Public Offering, each of BRPI and BRPLP were deemed to have disposed to the Issuer their respective portions of the derivate security represented by the Convertible Promissory Note in exchange for the issuance by the Issuer of a derivative security represented by the Convertible Promissory Note as amended to reflect the $0.75 conversion price, which security was immediately thereafter converted for the underlying shares of Issuer common stock.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 8

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPLP

Disclosed balance after: 7,120,325

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.

F7 · shares: On June 9, 2020, BRPLP was issued these shares of common stock by the Issuer upon the conversion of the Convertible Promissory Note at a conversion price of $0.75 per share. See Note 9.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 7

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPI

Disclosed balance after: 3,560,167

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 · shares: On June 9, 2020, BRPI was issued these shares of common stock by the Issuer upon the conversion of the Convertible Promissory Note (as defined below) at a conversion price of $0.75 per share. See Note 9.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 6

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Bryant R. Riley, as UTMA custodian for Abigail Riley

Disclosed balance after: 146,666

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F5 · ownership.nature: Represents shares of Issuer common stock owned indirectly by Bryant R. Riley as custodian for his children.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 5

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Bryant R. Riley, as UTMA custodian for Eloise Riley

Disclosed balance after: 146,667

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F5 · ownership.nature: Represents shares of Issuer common stock owned indirectly by Bryant R. Riley as custodian for his children.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 4

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Bryant R. Riley, as UTMA custodian for Charlie Riley

Disclosed balance after: 146,667

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F5 · ownership.nature: Represents shares of Issuer common stock owned indirectly by Bryant R. Riley as custodian for his children.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 3

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Bryant R. Riley, as UTMA custodian for Susan Riley

Disclosed balance after: 146,667

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F5 · ownership.nature: Represents shares of Issuer common stock owned indirectly by Bryant R. Riley as custodian for his children.

SEC source: 0001213900-20-016203 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPLP

Disclosed balance after: 2,453,658

F3 · shares: On June 9, 2020, BRPLP acquired these shares of Issuer common stock in the Issuer's underwritten public offering of common stock (the "Public Offering").

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-20-016203 · ownership.xml · derivative · entry 10

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPLP

Disclosed balance after: Not disclosed

Underlying: Common Stock · 410,469.03 shares

Expires 2022-09-21

F8 · price: On June 4, 2020, BRPI sold to BRPLP a $3,500,000 participation in the Convertible Promissory Note, dated April 9, 2018, as amended (the "Convertible Promissory Note") for $3,500,000 in cash.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F8 · ownership.nature: On June 4, 2020, BRPI sold to BRPLP a $3,500,000 participation in the Convertible Promissory Note, dated April 9, 2018, as amended (the "Convertible Promissory Note") for $3,500,000 in cash.

SEC source: 0001213900-20-016203 · ownership.xml · derivative · entry 9

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · Director · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · Director · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · Director · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · Director · See Remarks

RILEY BRYANT R · CIK 0001207269 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRPI

Disclosed balance after: Not disclosed

Underlying: Common Stock · 410,469.03 shares

Expires 2022-09-21

F8 · price: On June 4, 2020, BRPI sold to BRPLP a $3,500,000 participation in the Convertible Promissory Note, dated April 9, 2018, as amended (the "Convertible Promissory Note") for $3,500,000 in cash.

F1 · ownership.nature: This Form 4 is filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPLP. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own securities of the Issuer held by BRPI. Bryant R. Riley is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF and, as a result, may be deemed to indirectly beneficially own securities of the Issuer held by BRF, BRPLP and BRPI. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of such person's pecuniary interest therein.

F8 · ownership.nature: On June 4, 2020, BRPI sold to BRPLP a $3,500,000 participation in the Convertible Promissory Note, dated April 9, 2018, as amended (the "Convertible Promissory Note") for $3,500,000 in cash.

SEC source: 0000899243-20-014171 · doc4.xml · nonDerivative · entry 1

Nokomis Capital, L.L.C. · CIK 0001541055 · 10% owner

Hendrickson Brett · CIK 0001337431 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,995,703

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.14 to $1.40, inclusive. The reporting persons undertake to provide to Sonim Technologies, Inc. (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 sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2 · balance_after: The filing of this Form 4 shall not be construed as an admission that Nokomis Capital, L.L.C. ("Nokomis Capital") or Brett Hendrickson, the manager of Nokomis Capital, is or was for purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended, or otherwise the beneficial owner of any of the Common Stock, $0.001 par value per share (the "Common Stock"), of the Issuer held by certain private investment funds advised by Nokomis Capital (collectively, the "Nokomis Accounts"). Pursuant to Rule 16a-1, both Nokomis Capital and Mr. Hendrickson disclaim such beneficial ownership.

F3 · ownership.nature: Nokomis Capital holds indirectly the shares of Common Stock of the Issuer reported in this Form 4 through the Nokomis Accounts, for which Nokomis Capital is the Investment Manager. Brett Hendrickson reports the Common Stock held indirectly by Nokomis Capital because, as the manager of Nokomis Capital, he controlled the disposition and voting of such securities.

SEC source: 0001209191-20-000415 · doc4.xml · derivative · entry 1

SWENSON SUSAN · CIK 0001112671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,928

Underlying: Common Stock · 43,928 shares

Expires 2029-12-29

F1 · derivative.exercise_date: The Options shall vest: (a) with respect to 75% of the shares at such time as the price of the Company's Common Stock equals or exceeds $5.00 per share, (b) with respect to 15% of the shares at such time as the price of the Company's Common Stock equals or exceeds $7.00 per share; and (c) with respect to 10% of the shares at such time as the price of the Company's Common Stock equals or exceeds $8.00 per share, provided that all shares shall vest in full upon consummation of a change in control transaction.

SEC source: 0001209191-20-000417 · doc4.xml · derivative · entry 1

Howe Alan B · CIK 0001296812 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,928

Underlying: Common Stock · 43,928 shares

Expires 2029-12-29

F1 · derivative.exercise_date: The Options shall vest: (a) with respect to 75% of the shares at such time as the price of the Company's Common Stock equals or exceeds $5.00 per share, (b) with respect to 15% of the shares at such time as the price of the Company's Common Stock equals or exceeds $7.00 per share; and (c) with respect to 10% of the shares at such time as the price of the Company's Common Stock equals or exceeds $8.00 per share, provided that all shares shall vest in full upon consummation of a change in control transaction.

SEC source: 0001209191-20-000420 · doc4.xml · derivative · entry 1

Johnson Jeffrey D · CIK 0001775039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,928

Underlying: Common Stock · 43,928 shares

Expires 2029-12-29

F1 · derivative.exercise_date: The Options shall vest: (a) with respect to 75% of the shares at such time as the price of the Company's Common Stock equals or exceeds $5.00 per share, (b) with respect to 15% of the shares at such time as the price of the Company's Common Stock equals or exceeds $7.00 per share; and (c) with respect to 10% of the shares at such time as the price of the Company's Common Stock equals or exceeds $8.00 per share, provided that all shares shall vest in full upon consummation of a change in control transaction.

SEC source: 0001209191-20-000418 · doc4.xml · derivative · entry 1

Kneuer John · CIK 0001512329 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,928

Underlying: Common Stock · 43,928 shares

Expires 2029-12-29

F1 · derivative.exercise_date: The Options shall vest: (a) with respect to 75% of the shares at such time as the price of the Company's Common Stock equals or exceeds $5.00 per share, (b) with respect to 15% of the shares at such time as the price of the Company's Common Stock equals or exceeds $7.00 per share; and (c) with respect to 10% of the shares at such time as the price of the Company's Common Stock equals or exceeds $8.00 per share, provided that all shares shall vest in full upon consummation of a change in control transaction.

SEC source: 0001209191-20-000419 · doc4.xml · derivative · entry 1

Hochschild Maurice · CIK 0001775162 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,928

Underlying: Common Stock · 43,928 shares

Expires 2029-12-29

F1 · derivative.exercise_date: The Options shall vest: (a) with respect to 75% of the shares at such time as the price of the Company's Common Stock equals or exceeds $5.00 per share, (b) with respect to 15% of the shares at such time as the price of the Company's Common Stock equals or exceeds $7.00 per share; and (c) with respect to 10% of the shares at such time as the price of the Company's Common Stock equals or exceeds $8.00 per share, provided that all shares shall vest in full upon consummation of a change in control transaction.

SEC source: 0001209191-19-058811 · doc4.xml · derivative · entry 1

Wilkinson Thomas Wiley · CIK 0001667502 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2029-12-01

F1 · derivative.exercise_date: The option shall vest with respect to 25% of the underlying shares one year from October 29, 2019 and the remainder of the underlying shares shall vest in 1/48th monthly installments thereafter.

SEC source: 0001209191-19-056821 · doc4.xml · nonDerivative · entry 1

SWENSON SUSAN · CIK 0001112671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

F1 · shares: Represents the grant of restricted stock units (the "RSU") that vest in three equal annual installments beginning on May 9, 2019, subject to continued service. The RSU is the initial equity grant to which each non-employee director is entitled for service on the Issuer's board of directors pursuant to the non-employee director compensation policy that has been approved by the compensation committee of the Issuer's board of directors. The number of shares subject to the RSU was determined by reference to the price of the Issuer's common stock in its initial public offering, or $11 per share.

SEC source: 0001209191-19-056820 · doc4.xml · nonDerivative · entry 2

Kneuer John · CIK 0001512329 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,147

F2 · shares: Represents the grant of restricted stock units (the "RSU") that vest in three equal annual installments beginning on May 9, 2019, subject to continued service. The RSU is the initial equity grant to which each non-employee director is entitled for service on the Issuer's board of directors pursuant to the non-employee director compensation policy that has been approved by the compensation committee of the Issuer's board of directors. The number of shares subject to the RSU was determined by reference to the price of the Issuer's common stock in its initial public offering, or $11 per share.

SEC source: 0001209191-19-056817 · doc4.xml · nonDerivative · entry 1

Johnson Jeffrey D · CIK 0001775039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

F1 · shares: Represents the grant of restricted stock units (the "RSU") that vest in three equal annual installments beginning on May 9, 2019, subject to continued service. The RSU is the initial equity grant to which each non-employee director is entitled for service on the Issuer's board of directors pursuant to the non-employee director compensation policy that has been approved by the compensation committee of the Issuer's board of directors. The number of shares subject to the RSU was determined by reference to the price of the Issuer's common stock in its initial public offering, or $11 per share.

SEC source: 0001209191-19-056813 · doc4.xml · nonDerivative · entry 1

Hochschild Maurice · CIK 0001775162 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

F1 · shares: Represents the grant of restricted stock units (the "RSU") that vest in three equal annual installments beginning on May 9, 2019, subject to continued service. The RSU is the initial equity grant to which each non-employee director is entitled for service on the Issuer's board of directors pursuant to the non-employee director compensation policy that has been approved by the compensation committee of the Issuer's board of directors. The number of shares subject to the RSU was determined by reference to the price of the Issuer's common stock in its initial public offering, or $11 per share.

SEC source: 0001209191-19-056814 · doc4.xml · nonDerivative · entry 1

Howe Alan B · CIK 0001296812 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

F1 · shares: Represents the grant of restricted stock units (the "RSU") that vest in three equal annual installments beginning on May 9, 2019, subject to continued service. The RSU is the initial equity grant to which each non-employee director is entitled for service on the Issuer's board of directors pursuant to the non-employee director compensation policy that has been approved by the compensation committee of the Issuer's board of directors. The number of shares subject to the RSU was determined by reference to the price of the Issuer's common stock in its initial public offering, or $11 per share.

SEC source: 0001209191-19-055314 · doc4.xml · derivative · entry 2

TIRVA ROBERT L. · CIK 0001438223 · Interim CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,000

Underlying: Common Stock · 169,000 shares

Expires 2029-10-31

F2 · derivative.exercise_date: The option shall vest with respect to 25% of the underlying shares one year from September 9, 2019 and the remainder of the underlying shares shall vest in 1/48th monthly installments thereafter.

SEC source: 0001209191-19-055314 · doc4.xml · nonDerivative · entry 1

TIRVA ROBERT L. · CIK 0001438223 · Interim CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,500

F1 · shares: Represents grant of restricted stock units that vest in four equal annual installments beginning September 9, 2019.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 16

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 0

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 15

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 900

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 14

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 9,005

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 13

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 10,005

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 12

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 10,405

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 11

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 10,735

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 10

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 11,235

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 9

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 11,835

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

SEC source: 0001213900-19-021860 · ownership.xml · nonDerivative · entry 8

B. Riley Financial, Inc. · CIK 0001464790 · Director · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

Young Kenneth M · CIK 0001365572 · Director

RILEY BRYANT R · CIK 0001207269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley FBR, Inc.

Disclosed balance after: 13,335

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), Kenneth M. Young and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRFBR. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Bryant Riley, as Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of BRF, has voting and dispositive power over the shares held by BRPLP, BRPI and BRF. Mr. Young is the President of BRF and the Chief Executive Officer of BRPI. He has voting and dispositive power over the shares held by BRPI. Mr. Young does not have either voting or investment control over the securities held by the BRF. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.