Singer Eric

SEC source: 0000921895-22-001813 · form410114025_05262022.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 33,076

F5 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.60 to $14.94. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-22-001813 · form410114025_05262022.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 115,541

F5 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.60 to $14.94. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000899243-22-019539 · doc4.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director · Executive Chair

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 508,417

F1 · shares: Represents a grant of restricted stock pursuant to and in accordance with the Company's director compensation policy, 100% of which will vest, subject to continued service through the vesting date, on the earlier of (i) the one-year anniversary of May 23, 2022 or (ii) the date of the Issuer's 2023 annual meeting of stockholders, subject to acceleration in full upon the occurrence of certain events.

SEC source: 0000921895-22-001758 · form410114025_05202022.xml · nonDerivative · entry 5

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 53,076

F6 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.40 to $14.85. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-22-001758 · form410114025_05202022.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 175,541

F6 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.40 to $14.85. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-22-001758 · form410114025_05202022.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 67,345

F5 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.70 to $15.01. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-22-001758 · form410114025_05202022.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 205,541

F5 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.70 to $15.01. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 5

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 305,541

F9 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $13.79 to $14.66. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F5 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 405,541

F8 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.84 to $15.46. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F5 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,139

F4 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.90 to $14.98. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.direct: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.direct: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 6

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 103,036

F10 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.90 to $16.50. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F6 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 495,541

F7 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $14.90 to $16.50. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F5 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-22-001523 · form410114025_05092022.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,139

F3 · price: Represents a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $15.00 to $15.18. The Reporting Persons undertake to provide 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 purchased at each separate price within the range set forth in this footnote.

F1 · ownership.direct: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX GP, LLC ("VIEX GP"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.direct: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

SEC source: 0001628280-22-008378 · wf-form4_164918941798008.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director · Executive Chair

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 485,566

F1 · shares: Represents shares withheld to satisfy the tax withholding obligations upon restricted stock units vesting.

SEC source: 0001214659-22-001361 · marketforms-55122.xml · derivative · entry 3

Singer Eric · CIK 0001443284 · Director · Executive Chair

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Common Stock · 300,000 shares

Expires 2027-01-01

F3 · derivative.exercise_price: Grant of 300,000 Performance-Based Restricted Stock Units, each of which represents a contingent right to receive one share of common stock of Issuer, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of Issuer's common stock during any one hundred (100) day trading period between January 1, 2022 and January 1, 2027 (each, a "Performance Milestone"). Upon achievement of a Performance Milestone, vesting is subject to continued service with the Issuer through the applicable vesting date, which occurs in quarterly installments following the Vesting Start Date of January 1, 2022.Vesting is subject to acceleration upon occurrence of certain events.

F3 · derivative.exercise_date: Grant of 300,000 Performance-Based Restricted Stock Units, each of which represents a contingent right to receive one share of common stock of Issuer, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of Issuer's common stock during any one hundred (100) day trading period between January 1, 2022 and January 1, 2027 (each, a "Performance Milestone"). Upon achievement of a Performance Milestone, vesting is subject to continued service with the Issuer through the applicable vesting date, which occurs in quarterly installments following the Vesting Start Date of January 1, 2022.Vesting is subject to acceleration upon occurrence of certain events.

SEC source: 0001214659-22-001361 · marketforms-55122.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director · Executive Chair

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 491,914

F2 · shares: Represents a grant of restricted stock, 1/12th of the total number of shares (25,000 shares) will vest each quarterly period following the Vesting Start Date of January 1, 2022.Vesting is subject to acceleration upon occurrence of certain events.

SEC source: 0001214659-22-001361 · marketforms-55122.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director · Executive Chair

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,914

F1 · shares: Represents a grant of restricted stock, 100% of which will vest, subject to continued service through the vesting date, on the earlier of (i) the one-year anniversary of May 13, 2021 or (ii) the date of the Issuer's 2022 annual meeting of stockholders, subject to acceleration in full upon the occurrence of certain events.

SEC source: 0001214659-21-013119 · marketforms-54631.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 165,763

F2 · price: The price reported is a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $5.15 to $5.18 per Share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001214659-21-013119 · marketforms-54631.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,763

F1 · price: The price reported is a weighted average price. These Shares were purchased in multiple transactions at prices ranging from $5.27 to $5.29 per Share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0000921895-21-002793 · form410114025_12032021.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 178,535

F5 · shares: Represents a pro-rata distribution of shares to limited partners by VSO II in connection with the wind-down of the fund.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F6 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002586 · form410114025_11102021.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 1,043,255

F5 · shares: Represents a pro-rata distribution of shares to limited partners by VSO II.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F6 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 11

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 1,267,398

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.40 to $16.06 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 6.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F8 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 7

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 183,036

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.40 to $16.06 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 6.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F7 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 645,541

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.40 to $16.06 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 6.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 10

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 1,747,230

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.20 to $15.525 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 5.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F8 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 6

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 285,858

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.20 to $15.525 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 5.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F7 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 919,731

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.20 to $15.525 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 5.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 12

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund III, LP

Disclosed balance after: 0

F10 · shares: Represents a pro-rata distribution of shares to limited partners by VSO III.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F11 · ownership.nature: Securities of the Issuer that were beneficially owned directly by VSO III. VSO GP III, as the general partner of VSO III, may have been deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO III. VIEX Capital, as the investment manager of VSO III, may have been deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO III. Mr. Singer, as the managing member of each of VSO GP III and VIEX Capital, may have been deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO III.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 9

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 2,097,317

F9 · shares: Represents a pro-rata distribution of shares to limited partners by VSO II.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F8 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 8

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Special Opportunities Fund II, LP

Disclosed balance after: 4,705,022

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $18.58 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 3.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F8 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 5

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series Two

Disclosed balance after: 360,877

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $18.58 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 3.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F7 · ownership.nature: Securities of the Issuer beneficially owned directly by Series Two. VIEX GP, as the general partner of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. VIEX Capital, as the investment manager of Series Two, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series Two.

SEC source: 0000921895-21-002520 · form410114025_11032021.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viex Opportunities Fund, LP - Series One

Disclosed balance after: 1,119,781

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $18.58 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 3.

F1 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

SEC source: 0001214659-21-007505 · marketforms-53380.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 0

F3 · shares: Represents a distribution of shares of the Issuer from VIEX Special Opportunities Fund II, LP ("VSO II") to a limited partner of VSO II for no consideration.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VIEX Special Opportunities GP II, LLC ("VSO GP II"), as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of VSO GP II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

SEC source: 0001104659-21-080942 · tm2119703-2_4seq1.xml · derivative · entry 1

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,463

Underlying: Common Stock · 14,463 shares

Expires not disclosed

F1 · derivative.exercise_price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

F1 · derivative.exercise_date: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

F1 · derivative.expiration_date: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

SEC source: 0001214659-21-005619 · marketforms-52795.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,437

F1 · shares: Represents a grant of restricted stock, 100% of which will vest, subject to continued service through the vesting date, on the earlier of (i) the one-year anniversary of May 13, 2021 or (ii) the date of the Issuer's 2022 annual meeting of stockholders.

F2 · ownership.direct: This Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-21-005690 · marketforms-52847.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,076

F1 · shares: Represents a grant of restricted stock, 100% of which will vest, subject to continued service through the vesting date, on the earlier of (i) the one-year anniversary of May 13, 2021 or (ii) the date of the Issuer's 2022 annual meeting of stockholders.

F2 · shares: This amendment is being filed solely to correct the number of securities acquired and the amount of securities beneficially owned following reporting transaction used to report a single transaction in Table I of the reporting person's Form 4 filed on May 17, 2021. The original Form 4 incorrectly reported 14,674 securities acquired and 37,437 securities owned following the reporting transaction, due to an error.

F3 · ownership.direct: This Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-21-006082 · marketforms-52951.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,763

F1 · kind: This amendment is being filed solely to reverse the previously reported grant of restricted stock to the reporting person on the original form 4 filed on May 17, 2021, as amended on May 18, 2021 (the "Original Form 4"). The Original Form 4 reported the grant of 17,313 restricted shares, which grant was approved by the Immersion Board of Directors on May 13, 2021. Such grant was intended to be made under the Company's 2011 Equity Incentive Plan (the "Plan"). However, the Plan had expired at the time such grant was approved; and therefore, such grant could not be made. On May 19, 2021, following the filing of the Original Form 4 but before any restricted shares purportedly granted actually were issued to the reporting person, the Company identified the termination of the Plan and therefore did not issue the restricted shares to the reporting person. As a result, the grant was not effective under the issuer's grant procedures.

F2 · kind: Continued from footnote 1: The Immersion Board of Director has rescinded the prior approval of such grant and has confirmed that the reporting person had no right to the restricted shares previously reported on the Original Form 4.

F1 · shares: This amendment is being filed solely to reverse the previously reported grant of restricted stock to the reporting person on the original form 4 filed on May 17, 2021, as amended on May 18, 2021 (the "Original Form 4"). The Original Form 4 reported the grant of 17,313 restricted shares, which grant was approved by the Immersion Board of Directors on May 13, 2021. Such grant was intended to be made under the Company's 2011 Equity Incentive Plan (the "Plan"). However, the Plan had expired at the time such grant was approved; and therefore, such grant could not be made. On May 19, 2021, following the filing of the Original Form 4 but before any restricted shares purportedly granted actually were issued to the reporting person, the Company identified the termination of the Plan and therefore did not issue the restricted shares to the reporting person. As a result, the grant was not effective under the issuer's grant procedures.

F2 · shares: Continued from footnote 1: The Immersion Board of Director has rescinded the prior approval of such grant and has confirmed that the reporting person had no right to the restricted shares previously reported on the Original Form 4.

F1 · price: This amendment is being filed solely to reverse the previously reported grant of restricted stock to the reporting person on the original form 4 filed on May 17, 2021, as amended on May 18, 2021 (the "Original Form 4"). The Original Form 4 reported the grant of 17,313 restricted shares, which grant was approved by the Immersion Board of Directors on May 13, 2021. Such grant was intended to be made under the Company's 2011 Equity Incentive Plan (the "Plan"). However, the Plan had expired at the time such grant was approved; and therefore, such grant could not be made. On May 19, 2021, following the filing of the Original Form 4 but before any restricted shares purportedly granted actually were issued to the reporting person, the Company identified the termination of the Plan and therefore did not issue the restricted shares to the reporting person. As a result, the grant was not effective under the issuer's grant procedures.

F2 · price: Continued from footnote 1: The Immersion Board of Director has rescinded the prior approval of such grant and has confirmed that the reporting person had no right to the restricted shares previously reported on the Original Form 4.

F1 · balance_after: This amendment is being filed solely to reverse the previously reported grant of restricted stock to the reporting person on the original form 4 filed on May 17, 2021, as amended on May 18, 2021 (the "Original Form 4"). The Original Form 4 reported the grant of 17,313 restricted shares, which grant was approved by the Immersion Board of Directors on May 13, 2021. Such grant was intended to be made under the Company's 2011 Equity Incentive Plan (the "Plan"). However, the Plan had expired at the time such grant was approved; and therefore, such grant could not be made. On May 19, 2021, following the filing of the Original Form 4 but before any restricted shares purportedly granted actually were issued to the reporting person, the Company identified the termination of the Plan and therefore did not issue the restricted shares to the reporting person. As a result, the grant was not effective under the issuer's grant procedures.

F2 · balance_after: Continued from footnote 1: The Immersion Board of Director has rescinded the prior approval of such grant and has confirmed that the reporting person had no right to the restricted shares previously reported on the Original Form 4.

SEC source: 0001580808-21-000081 · wf-form4_162007382014913.xml · nonDerivative · entry 1

Singer Eric · CIK 0001443284 · Director · 10% owner

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · 10% owner

VIEX Opportunities Fund, LP - Series Two · CIK 0001659404 · 10% owner

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · 10% owner

VIEX Special Opportunities Fund III, LP · CIK 0001619126 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,139

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will vest on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service as of such date.

F2 · ownership.direct: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Opportunities Fund, LP - Series Two ("Series Two"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), Viex Special Opportunities Fund III, LP ("VSO III"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), Viex Special Opportunities GP III, LLC ("VSO GP III"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.direct: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

SEC source: 0000921895-21-000731 · form410114018_03122021.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 498,879

F4 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $10.5400 to $10.8100 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 4.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000705 · form410114018_03102021.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 0

F6 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $9.7200 to $10.5650 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 6.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000705 · form410114018_03102021.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 219,431

F5 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $9.5600 to $10.5800 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 5.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000516 · form410114018_02192021.xml · nonDerivative · entry 5

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 287,370

F6 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $12.1100 to $13.0800 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 5.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000516 · form410114018_02192021.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 598,879

F6 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $12.1100 to $13.0800 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 5.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000516 · form410114018_02192021.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 389,119

F5 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $12.6400 to $13.5000 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 5.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0000921895-21-000516 · form410114018_02192021.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 751,501

F5 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $12.6400 to $13.5000 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 5.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

F7 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-20-010808 · marketforms-50783.xml · nonDerivative · entry 5

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 486,106

F5 · shares: The sales reported herein by the Reporting Persons were made pursuant to the previously disclosed Securities Sales Plan Agreement (the "2020 Sales Plan Agreement") entered into with Virtu Americas LLC for the purpose of establishing a trading plan to effect sales of Shares in compliance with all applicable laws, including, without limitation, Section 10(b) of the Exchange Act, and the rules and regulations promulgated thereunder, including, but not limited to, Rule 10b5-1. All of the Shares contemplated to be sold thereunder have been sold and the 2020 Sales Plan Agreement has now terminated.

F7 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $10.5100 to $10.8600 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 7.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F8 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-20-010808 · marketforms-50783.xml · nonDerivative · entry 3

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 896,980

F5 · shares: The sales reported herein by the Reporting Persons were made pursuant to the previously disclosed Securities Sales Plan Agreement (the "2020 Sales Plan Agreement") entered into with Virtu Americas LLC for the purpose of establishing a trading plan to effect sales of Shares in compliance with all applicable laws, including, without limitation, Section 10(b) of the Exchange Act, and the rules and regulations promulgated thereunder, including, but not limited to, Rule 10b5-1. All of the Shares contemplated to be sold thereunder have been sold and the 2020 Sales Plan Agreement has now terminated.

F7 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $10.5100 to $10.8600 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 7.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

F8 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-20-010808 · marketforms-50783.xml · nonDerivative · entry 4

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 523,546

F5 · shares: The sales reported herein by the Reporting Persons were made pursuant to the previously disclosed Securities Sales Plan Agreement (the "2020 Sales Plan Agreement") entered into with Virtu Americas LLC for the purpose of establishing a trading plan to effect sales of Shares in compliance with all applicable laws, including, without limitation, Section 10(b) of the Exchange Act, and the rules and regulations promulgated thereunder, including, but not limited to, Rule 10b5-1. All of the Shares contemplated to be sold thereunder have been sold and the 2020 Sales Plan Agreement has now terminated.

F6 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $9.5000 to $10.3000 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 6.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F8 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001214659-20-010808 · marketforms-50783.xml · nonDerivative · entry 2

Singer Eric · CIK 0001443284 · Director

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Responses

VIEX GP, LLC · CIK 0001654852 · See Explanation of Responses

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Responses

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Responses

VIEX Capital Advisors, LLC · CIK 0001619125 · See Explanation of Responses

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Special Opportunities Fund II, LP

Disclosed balance after: 963,540

F5 · shares: The sales reported herein by the Reporting Persons were made pursuant to the previously disclosed Securities Sales Plan Agreement (the "2020 Sales Plan Agreement") entered into with Virtu Americas LLC for the purpose of establishing a trading plan to effect sales of Shares in compliance with all applicable laws, including, without limitation, Section 10(b) of the Exchange Act, and the rules and regulations promulgated thereunder, including, but not limited to, Rule 10b5-1. All of the Shares contemplated to be sold thereunder have been sold and the 2020 Sales Plan Agreement has now terminated.

F6 · price: The price reported is a weighted average price. These Shares were sold in multiple transactions at prices ranging from $9.5000 to $10.3000 per Share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price within the range set forth in this footnote 6.

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F3 · ownership.nature: Securities of the Issuer beneficially owned directly by VSO II. VSO GP II, as the general partner of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. VIEX Capital, as the investment manager of VSO II, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II. Mr. Singer, as the managing member of each of VSO GP II and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by VSO II.

F8 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193805-20-001120 · e619918_4-immr.xml · nonDerivative · entry 9

Singer Eric · CIK 0001443284 · Director · 10% owner

VIEX Opportunities Fund, LP Series One · CIK 0001606750 · See Explanation of Resposnes

VIEX GP, LLC · CIK 0001654852 · See Explanation of Resposnes

VIEX Special Opportunities Fund II, LP · CIK 0001619127 · See Explanation of Resposnes

VIEX Special Opportunities GP II, LLC · CIK 0001658891 · See Explanation of Resposnes

VIEX Capital Advisors, LLC · CIK 0001619125 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By VIEX Opportunities Fund, LP - Series One

Disclosed balance after: 1,031,997

F2 · ownership.nature: This Form 4 is filed jointly by VIEX Opportunities Fund, LP - Series One ("Series One"), a series of VIEX Opportunities Fund, LP, VIEX Special Opportunities Fund II, LP ("VSO II"), VIEX GP, LLC ("VIEX GP"), VIEX Special Opportunities GP II, LLC ("VSO GP II"), VIEX Capital Advisors, LLC ("VIEX Capital"), and Eric Singer (collectively, the "Reporting Persons").

F4 · ownership.nature: Securities of the Issuer beneficially owned directly by Series One. VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One. Mr. Singer, as the managing member of each of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the securities of the Issuer beneficially owned by Series One.

F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.