NOVA DANIEL J

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 11

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F7 · ownership.nature: These shares are held of record by Highland Leaders Fund I, L.P. ("HLF I"). The general partner of HLF I is Highland Leaders Fund I GP, L.P. ("HLF I GP LP"), whose general partner is Highland Leaders Fund I GP, LLC ("HLF I GP LLC"). The Reporting Person is a Managing Member of HLF I GP LLC and may be deemed to have voting and dispositive power over the shares held by HLF I. The Reporting Person disclaims beneficial ownership of the securities held by HLF I, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 10

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 847,978

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

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a one-for-one basis for no additional consideration.

F7 · ownership.nature: These shares are held of record by Highland Leaders Fund I, L.P. ("HLF I"). The general partner of HLF I is Highland Leaders Fund I GP, L.P. ("HLF I GP LP"), whose general partner is Highland Leaders Fund I GP, LLC ("HLF I GP LLC"). The Reporting Person is a Managing Member of HLF I GP LLC and may be deemed to have voting and dispositive power over the shares held by HLF I. The Reporting Person disclaims beneficial ownership of the securities held by HLF I, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 9

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,088,560

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 8

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 7

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,088,560

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

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a one-for-one basis for no additional consideration.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 6

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,119,970

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 5

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 4

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,119,970

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

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a one-for-one basis for no additional consideration.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 3

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 47,885

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 2

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F4 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class A Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0000899243-21-042546 · doc4.xml · nonDerivative · entry 1

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 47,885

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

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a one-for-one basis for no additional consideration.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B").

F3 · ownership.nature: Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of each of Highland Capital VIII-B, Highland Capital VIII-C and Highland Capital VIII (collectively, the "Highland VIII Funds"). The Reporting Person is a Director of HMP VIII Ltd and may be deemed to have voting and dispositive power over the shares held by each of the Highland VIII Funds. The Reporting Person disclaims beneficial ownership of the securities held by each of the Highland VIII Funds, except to the extent of the Reporting Person's pecuniary interest therein, and the filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 21

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 64,665

Underlying: Class A Common Stock · 7,185 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F8 · ownership.nature: These shares are held of record by Highland Entrepreneurs' Fund VII Limited Partnership ("HE Fund"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HE Fund. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HE Fund and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HE Fund to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 20

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,640,248

Underlying: Class A Common Stock · 182,249 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F7 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("HC VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 19

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 70,129

Underlying: Class A Common Stock · 7,793 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("HC VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 18

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,523,340

Underlying: Class A Common Stock · 502,594 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("HC VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of HC VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 17

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 728,247

Underlying: Class A Common Stock · 80,916 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VII-C Limited Partnership ("HC VII-C"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-C. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 16

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 500,062

Underlying: Class A Common Stock · 55,562 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VII-B Limited Partnership ("HC VII-B"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-B. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · derivative · entry 15

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,063,647

Underlying: Class A Common Stock · 229,293 shares

Expires not disclosed

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

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VII Limited Partnership ("HC VII"). Highland Management Partners VII, LLC ("HMP VII LLC") is the general partner of Highland Management Partners VII Limited Partnership ("HMP VII LP"), which is the general partner of HC VII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "Managing Members"), are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 14

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F8 · ownership.nature: These shares are held of record by Highland Entrepreneurs' Fund VII Limited Partnership ("HE Fund"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HE Fund. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HE Fund and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HE Fund to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 13

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F7 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("HC VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 12

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("HC VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 11

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("HC VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of HC VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 10

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VII-C Limited Partnership ("HC VII-C"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-C. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 9

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VII-B Limited Partnership ("HC VII-B"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-B. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 8

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021, HC VII sold 229,293 shares of Class A Common Stock, HC VII-B sold 55,562 shares of Class A Common Stock, HC VII-C sold 80,916 shares of Class A Common Stock, HC VIII sold 502,594 shares of Class A Common Stock, HC VIII-B sold 7,793 shares of Class A Common Stock, HC VIII-C sold 182,249 shares of Class A Common Stock and HE Fund sold 7,185 shares of Class A Common Stock, each at a price per share of $23.1588 (after underwriting discounts and commissions). HC VII, HC VII-B, HC VII-C, HC VIII, HC VIII-B, HC VIII-C and HE Fund were selling stockholders in the registered public offering.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VII Limited Partnership ("HC VII"). Highland Management Partners VII, LLC ("HMP VII LLC") is the general partner of Highland Management Partners VII Limited Partnership ("HMP VII LP"), which is the general partner of HC VII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "Managing Members"), are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 7

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,185

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F8 · ownership.nature: These shares are held of record by Highland Entrepreneurs' Fund VII Limited Partnership ("HE Fund"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HE Fund. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HE Fund and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HE Fund to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 6

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 182,249

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F7 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("HC VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 5

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,793

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F6 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("HC VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP, which is the general partner of HC VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 4

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 502,594

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("HC VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP"), which is the general partner of HC VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by HC VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by HC VIII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 3

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 80,916

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VII-C Limited Partnership ("HC VII-C"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-C. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-C to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 2

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 55,562

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VII-B Limited Partnership ("HC VII-B"). HMP VII LLC is the general partner of HMP VII LP, which is the general partner of HC VII-B. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII-B to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001484778-21-000053 · wf-form4_162794851520552.xml · nonDerivative · entry 1

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 229,293

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

F1 · kind: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock at the option of the holder in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated July 28, 2021, which offering was consummated on August 2, 2021.

F2 · ownership.nature: These shares are held of record by Highland Capital Partners VII Limited Partnership ("HC VII"). Highland Management Partners VII, LLC ("HMP VII LLC") is the general partner of Highland Management Partners VII Limited Partnership ("HMP VII LP"), which is the general partner of HC VII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "Managing Members"), are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by HC VII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LP, HMP VII LLC and the Managing Members disclaims beneficial ownership over the shares held by HC VII to the extent of its or their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 31

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 71,850

Underlying: Class A Common Stock · 71,850 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F10 · ownership.nature: These shares are held of record by Highland Entrepreneurs Fund VII Limited Partnership ("Highland Entrepreneurs Fund"). HMP VII LLC is the general partner of HMP VII LP which is the general partner of Highland Entrepreneurs Fund. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by Highland Entrepreneurs Fund and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LLC, HMP VII LP and the Managing Members disclaims beneficial ownership over the shares held by Highland Entrepreneurs Fund to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 30

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 809,163

Underlying: Class A Common Stock · 809,163 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F9 · ownership.nature: These shares are held of record by Highland Capital Partners VII-C Limited Partnership ("Highland Capital VII-C"). HMP VII LLC is the general partner of HMP VII LP which is the general partner of Highland Capital VII-C. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LLC, HMP VII LP and the Managing Members disclaims beneficial ownership over the shares held by Highland Capital VII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 29

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 555,624

Underlying: Class A Common Stock · 555,624 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F8 · ownership.nature: These shares are held of record by Highland Capital Partners VII-B Limited Partnership ("Highland Capital VII-B"). HMP VII LLC is the general partner of HMP VII LP which is the general partner of Highland Capital VII-B. The Managing Members are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LLC, HMP VII LP and the Managing Members disclaims beneficial ownership over the shares held by Highland Capital VII-B to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 28

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,292,940

Underlying: Class A Common Stock · 2,292,940 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F7 · ownership.nature: These shares are held of record by Highland Capital Partners VII Limited Partnership ("Highland Capital VII"). Highland Management Partners VII, LLC ("HMP VII LLC") is the general partner of Highland Management Partners VII Limited Partnership ("HMP VII LP") which is the general partner of Highland Capital VII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "Managing Members"), are the managing members of HMP VII LLC. Each of HMP VII LP, HMP VII LLC and the Managing Members may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VII LLC, HMP VII LP and the Managing Members disclaims beneficial ownership over the shares held by Highland Capital VII to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 27

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,822,497

Underlying: Class A Common Stock · 1,822,497 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 26

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 77,922

Underlying: Class A Common Stock · 77,922 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-B to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 25

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 5,025,934

Underlying: Class A Common Stock · 5,025,934 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and upon the occurrence of other events set forth in the Issuer's Certificate of Incorporation.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP") which is the general partner of Highland Capital VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 24

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 22,360 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 23

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 956 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-B to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 22

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 61,664 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP") which is the general partner of Highland Capital VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 21

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 95,654 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 20

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 4,090 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-B to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 19

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 263,785 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP") which is the general partner of Highland Capital VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 18

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 183,108 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 17

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 7,829 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-B to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 16

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 504,961 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F3 · ownership.nature: These shares are held of record by Highland Capital Partners VIII Limited Partnership ("Highland Capital VIII"). Highland Management Partners VIII Limited ("HMP VIII Ltd") is the general partner of Highland Management Partners VIII Limited Partnership ("HMP VIII LP") which is the general partner of Highland Capital VIII. Robert J. Davis, Paul A. Maeder, Corey M. Mulloy and the Reporting Person, a member of the Issuer's board of directors (collectively, the "HMP VIII Ltd Directors"), are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 15

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 289,674 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F5 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-C Limited Partnership ("Highland Capital VIII-C"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-C. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-C and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-C to the extent of their respective pecuniary interests therein, if any.

SEC source: 0001628280-21-006425 · wf-form4_161731619413745.xml · derivative · entry 14

NOVA DANIEL J · CIK 0001027730 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 12,385 shares

Expires not disclosed

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

F6 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F6 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series E-1 Preferred Stock and Series F Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock, par value $0.0001 per share, on a one-for-one basis. The Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held of record by Highland Capital Partners VIII-B Limited Partnership ("Highland Capital VIII-B"). HMP VIII Ltd is the general partner of HMP VIII LP which is the general partner of Highland Capital VIII-B. The HMP VIII Ltd Directors are the directors of HMP VIII Ltd. Each of HMP VIII LP, HMP VIII Ltd and the HMP VIII Ltd Directors may be deemed to share voting, investment and dispositive power over the shares held by Highland Capital VIII-B and as a result may be deemed to have beneficial ownership over such shares. Each of HMP VIII Ltd, HMP VIII LP and the HMP VIII Ltd Directors disclaims beneficial ownership over the shares held by Highland Capital VIII-B to the extent of their respective pecuniary interests therein, if any.