Acuitas Group Holdings, LLC

SEC source: 0001104659-21-069038 · tm2116914-1_4seq1.xml · nonDerivative · entry 4

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,658,312

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021.

F6 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.56 to $32.55, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-069038 · tm2116914-1_4seq1.xml · nonDerivative · entry 3

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,666,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021.

F5 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.74 to $32.42, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-069038 · tm2116914-1_4seq1.xml · nonDerivative · entry 2

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,672,287

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021.

F4 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.87 to $31.70, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-069038 · tm2116914-1_4seq1.xml · nonDerivative · entry 1

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,674,487

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021.

F3 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $29.73 to $30.72, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 11

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,677,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F13 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.530 to $32.335, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 10

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,680,612

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F12 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.690 to $31.460, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 9

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,681,883

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F11 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $29.510 to $30.500, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 11

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,677,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F14 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.530 to $32.335, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 10

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,680,612

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F13 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.690 to $31.460, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 9

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,681,883

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F12 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $29.510 to $30.500, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 8

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,688,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F10 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.710 to $32.490, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 7

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,693,012

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F9 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.710 to $31.660, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 8

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,688,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F11 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.710 to $32.490, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 7

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,693,012

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F10 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.710 to $31.660, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 6

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,699,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F8 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $32.120 to $32.290, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 5

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,701,223

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F7 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.220 to $32.080, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 4

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,703,923

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F6 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.130 to $31.000, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 3

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,706,012

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F5 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $29.120 to $30.050, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 2

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,709,413

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F4 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $28.090 to $29.070, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 6

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,699,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F9 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $32.120 to $32.290, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 5

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,701,223

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F8 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $31.220 to $32.080, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 4

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,703,923

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F7 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $30.130 to $31.000, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 3

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,706,012

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F6 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $29.120 to $30.050, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 2

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,709,413

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · shares: Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on May 10, 2021. The shares sold pursuant to such sales were acquired by Acuitas pursuant to the exercise of warrants held by Acuitas on May 10, 2021, which warrants were set to expire on August 15, 2021 and August 30, 2021.

F5 · price: The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $28.090 to $29.070, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · derivative · entry 31

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 0

Underlying: Common Stock · 498,927 shares

Expires 2021-08-15

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F13 · derivative.exercise_price: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · derivative.underlying_shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · derivative · entry 30

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 0

Underlying: Common Stock · 187,002 shares

Expires 2021-08-30

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F13 · derivative.exercise_price: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · derivative.underlying_shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 18

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,709,882

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F22 · kind: On May 10, 2021, Acuitas exercised (i) a warrant to purchase 187,002 shares of the issuer's common stock for $1.80 per share and (ii) a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. Acuitas paid the exercise prices on a cashless basis, resulting in the issuer's withholding of an aggregate of warrant shares to pay the applicable exercise prices and issuing to Acuitas the remaining 89,572 shares in the aggregate.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 17

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,788,567

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F22 · kind: On May 10, 2021, Acuitas exercised (i) a warrant to purchase 187,002 shares of the issuer's common stock for $1.80 per share and (ii) a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. Acuitas paid the exercise prices on a cashless basis, resulting in the issuer's withholding of an aggregate of warrant shares to pay the applicable exercise prices and issuing to Acuitas the remaining 89,572 shares in the aggregate.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 16

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,799,454

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 15

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,301,157

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · derivative · entry 12

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 0

Underlying: Common Stock · 498,927 shares

Expires 2021-08-15

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

F3 · shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

F2 · derivative.underlying_shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

F3 · derivative.underlying_shares: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

SEC source: 0001104659-21-066223 · tm2116374-1_4seq1.xml · nonDerivative · entry 1

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,710,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

F2 · balance_after: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · derivative · entry 12

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 0

Underlying: Common Stock · 498,927 shares

Expires 2021-08-15

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

F2 · derivative.underlying_shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

SEC source: 0001104659-21-067155 · tm2116374-3_4aseq1.xml · nonDerivative · entry 1

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,710,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F2 · shares: On May 11, 2021, the Reporting Persons filed a Form 4 (the "May 11 Form 4") which incorrectly reported, due to a clerical error, that on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,297 shares of the issuer's common stock for $4.80 per share. In fact, as reported in this Form 4, on May 10, 2021, Acuitas exercised, on a cashless basis, a warrant to purchase 498,927 shares of the issuer's common stock (rather than 498,297 shares) for $4.80 per share.

F3 · balance_after: This Form 4 also corrects the total number of shares of the issuer's common stock beneficially owned by the Reporting Persons following the exercise of all warrants reported on the May 11 Form 4 (net of the issuer's withholding of an aggregate of 89,572 shares in respect of the exercise prices for such warrants), which was incorrectly reported on the May 11 Form 4 as 9,709,882 shares. In fact, as reported in this Form 4, following the exercise of all such warrants on May 10, 2021 (and after giving effect to the issuer's withholding of shares in respect of the exercise prices for such warrants), the Reporting Persons beneficially owned an aggregate of 9,710,512 shares of the issuer's common stock.

SEC source: 0001104659-21-030662 · tm217592-3_4seq1.xml · nonDerivative · entry 2

PEIZER TERREN S · CIK 0000904534 · Director · Exe. Cha. of the Board of Dir. · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 10,055,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas. The issuer's board of directors appointed Mr. Peizer as its Executive Chairman, effective as of February 26, 2021.

F3 · price: Represents 825,000 shares issued by the issuer to Acuitas on March 1, 2021 pursuant to a settlement agreement and release, dated as of October 28, 2019.

SEC source: 0001104659-21-030662 · tm217592-3_4seq1.xml · nonDerivative · entry 1

PEIZER TERREN S · CIK 0000904534 · Director · Exe. Cha. of the Board of Dir. · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,230,512

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas. The issuer's board of directors appointed Mr. Peizer as its Executive Chairman, effective as of February 26, 2021.

F2 · price: Represents 6,000,000 shares purchased by Acuitas from X, LLC for aggregate consideration that the parties have agreed to value as $6,000,0000 pursuant to an amended and restated purchase and sale agreement, dated as of February 22, 2021. Acuitas has reported its beneficial ownership of such shares on a Form 3 filed by Acuitas on the date hereof.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 14

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F12 · ownership.nature: Represents the transfer of a share by Peizer, Ltd. to Acuitas for no consideration. Peizer, Ltd. is no longer in existence. Mr. Peizer previously exercised voting and investment power over any securities held for the accounts of Peizer, Ltd.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 13

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F11 · ownership.nature: Represents a transfer of shares by Bonmore Capital LLC ("Bonmore") to Acuitas for no consideration. Bonmore is no longer in existence. Mr. Peizer previously exercised voting and investment power over any securities held for the accounts of Bonmore.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 12

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · ownership.nature: Represents a transfer of shares by Socius to Acuitas for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 11

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F8 · ownership.nature: Represents a transfer of shares by Crede III to Acuitas for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 10

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F10 · ownership.nature: Represents a transfer of shares by Reserva Capital, LLC ("Reserva") to Acuitas for no consideration. Reserva is no longer in existence. Mr. Peizer previously exercised voting and investment power over any securities held for the accounts of Reserva.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 9

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,114,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F9 · ownership.nature: Represents a transfer of shares by Acuitas to Brianna Bell, an individual unaffiliated with Mr. Peizer and Acuitas, for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · derivative · entry 22

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 187,002

Underlying: Common Stock · 187,002 shares

Expires 2021-08-30

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F13 · derivative.exercise_price: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F15 · price: On July 29, 2020, the warrant was amended to extend the expiration date from July 30, 2020 to August 30, 2021. The amendment is reported above as the cancellation of the old warrant and the acquisition of the new one.

F13 · derivative.underlying_shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · balance_after: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · derivative · entry 21

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 0

Underlying: Common Stock · 187,002 shares

Expires 2020-07-30

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F13 · derivative.exercise_price: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F13 · shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

F15 · price: On July 29, 2020, the warrant was amended to extend the expiration date from July 30, 2020 to August 30, 2021. The amendment is reported above as the cancellation of the old warrant and the acquisition of the new one.

F13 · derivative.underlying_shares: After giving effect to a 1:6 reverse stock split conducted by the issuer in April 25, 2017.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 8

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,119,155

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F9 · ownership.nature: Represents a transfer of shares by Acuitas to Brianna Bell, an individual unaffiliated with Mr. Peizer and Acuitas, for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 7

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,125,394

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F8 · ownership.nature: Represents a transfer of shares by Crede III to Acuitas for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 6

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Crede III

Disclosed balance after: 9,125,394

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F7 · ownership.nature: Represents a transfer of shares by Crede CG III, Ltd. ("Crede III") to The Giving Back Fund, an entity unaffiliated with Mr. Peizer and Acuitas, for no consideration. Mr. Peizer is the Managing Director of Crede III and, in such capacity, exercises voting and investment power over any securities held for the accounts of Crede III.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 5

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,140,394

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F6 · ownership.nature: Represents a transfer of shares by Crede II to Acuitas for no consideration.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 4

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Crede II

Disclosed balance after: 9,140,394

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F5 · ownership.nature: Represents a transfer of shares by Crede CG II, Ltd. ("Crede II") to Gabrielle's Angel Foundation, an entity unaffiliated with Mr. Peizer and Acuitas, for no consideration. Crede II is no longer in existence. Mr. Peizer previously exercised voting and investment power over any securities held for the account of Crede II.

SEC source: 0001104659-21-064673 · tm2115699-4_4seq1.xml · nonDerivative · entry 3

PEIZER TERREN S · CIK 0000904534 · Director · Executive Chairman · 10% owner

Acuitas Group Holdings, LLC · CIK 0001797168 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Acuitas

Disclosed balance after: 9,145,849

F1 · security: This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas.

F4 · ownership.nature: Represents a transfer of shares by Socius to Acuitas for no consideration.