Tansey Casey M

Row 1 · 2020-12-08 · Conversion · Acquired 1,779,969 · Balance 1,779,969

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 2 · 2020-12-08 · Conversion · Acquired 289,198 · Balance 2,069,167

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 3 · 2020-12-08 · Conversion · Acquired 90,335 · Balance 90,335

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 4 · 2020-12-08 · Conversion · Acquired 14,677 · Balance 105,012

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 5 · 2020-12-08 · Purchase · Acquired 47,619 · Balance 47,619

F1: The shares were purchased in the Issuer's initial public offering.

Row 6 · 2020-12-08 · Conversion · Disposed 6,609,027 · Balance 0

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 7 · 2020-12-08 · Conversion · Disposed 335,417 · Balance 0

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 8 · 2020-12-08 · Conversion · Disposed 1,073,793 · Balance 0

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 9 · 2020-12-08 · Conversion · Disposed 54,496 · Balance 0

F2: Series B and Series C Preferred Stock automatically converted into shares of the Issuer's Common Stock immediately upon the closing of the Issuer's imitial public offering, for no additional consideration at a rate of 1 share of Common Stock for each 3.713 shares of Preferred Stock, based on the conversion price currently in effect. The Preferred Stock had no expiration date.

F3: Presidio Management Group XII, L.L.C. ("PMG XII"), the general partner of each of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, the "USVP XII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP XII. Casey Tansey is the sole managing partner of PMG XII and may be deemed to have voting and dispositive power over the reported securities held by the USVP XII Funds, and each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 1 · 2017-06-02 · Conversion · Acquired 8,000,000 · Balance 8,000,000

F1: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 2 · 2017-06-02 · Other · Disposed 8,000,000 · Balance 0

F1: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2: Prorata distribution in kind from the partnership without consideration to its limited partners.

F3: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 3 · 2017-06-02 · Conversion · Disposed 8,000,000 · Balance 3,713,775

F1: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 1 · 2018-11-08 · Other · Disposed 4,280,779 · Balance 0

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 2 · 2018-11-08 · Other · Acquired 856,155 · Balance 856,155

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

Row 3 · 2018-11-08 · Other · Disposed 856,155 · Balance 0

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

Row 4 · 2018-11-08 · Other · Acquired 102,093 · Balance 102,093

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 5 · 2018-11-12 · Sale · Disposed 2,100 · Balance 99,993

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $.95 to $.96, inclusive for sales made on November 12, 2018. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 6 · 2018-11-13 · Sale · Disposed 2,400 · Balance 97,593

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 7 · 2018-11-08 · Other · Acquired 69,609 · Balance 69,609

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 8 · 2018-11-08 · Other · Acquired 60,408 · Balance 60,408

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 9 · 2018-11-08 · Other · Acquired 85,851 · Balance 85,851

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 10 · 2018-11-08 · Other · Acquired 60,336 · Balance 60,336

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 11 · 2018-11-08 · Other · Acquired 82,370 · Balance 82,370

F1: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

Row 1 · 2021-03-16 · Other · Disposed 2,619,872 · Balance 2,619,872

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock, and not a purchase or sale, without additional consideration to their respective partners, members and assignees, as applicable.

F2: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates Fund, L.P. ("AFF X" and, together with USVP X, the "USVP X Funds"), and may be deemed to have sole voting and dispositive power over the securities held by the USVP X Funds. Casey Tansey is the sole managing partner of PMG X and may be deemed to have shared voting and sole dispositive power over the reported securities held by the USVP X Funds, and disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 2 · 2021-03-16 · Other · Disposed 83,814 · Balance 83,813

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock, and not a purchase or sale, without additional consideration to their respective partners, members and assignees, as applicable.

F2: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates Fund, L.P. ("AFF X" and, together with USVP X, the "USVP X Funds"), and may be deemed to have sole voting and dispositive power over the securities held by the USVP X Funds. Casey Tansey is the sole managing partner of PMG X and may be deemed to have shared voting and sole dispositive power over the reported securities held by the USVP X Funds, and disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 3 · 2021-03-16 · Other · Acquired 685,827 · Balance 685,827

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock, and not a purchase or sale, without additional consideration to their respective partners, members and assignees, as applicable.

F3: Represents a pro-rata in-kind distribution of the Issuer's common stock to PMG X from each of the USVP Funds, without additional consideration. Casey Tansey is the sole managing partner of PMG X and may be deemed to have shared voting and sole dispositive power over the reported securities held by PMG X, and disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 4 · 2021-03-16 · Other · Disposed 685,827 · Balance 0

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock, and not a purchase or sale, without additional consideration to their respective partners, members and assignees, as applicable.

F4: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by PMG X, without additional consideration, to its members (the "PMG X Distribution"). Casey Tansey is the sole managing partner of PMG X and may be deemed to have shared voting and sole dispositive power over the reported securities held by PMG X, and disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 5 · 2021-03-16 · Other · Acquired 77,296 · Balance 242,988

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock, and not a purchase or sale, without additional consideration to their respective partners, members and assignees, as applicable.

F5: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the PMG X Distribution.

Row 1 · 2021-08-17 · Other · Disposed 1,500,000 · Balance 4,368,405

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by each of U.S. Venture Partners VII, L.P. ("USVP VII") and 2180 Associates Fund VII, L.P. ("2180-VII'), without additional consideration to its partners or members. Presidio Management Group VII, L.L.C. ("PMG VII") received a pro-rata in-kind distribution from 2180-VII.

F2: Presidio Management Group VII, L.L.C. ("PMG VII"), the general partner of each of U.S. Venture Partners VII, L.P. ("USVP VII"), 2180 Associates Fund VII, L.P. ("2180-VII), USVP Entrepreneur Partners VII-A, L.P. ("EP7-A") and USVP Entrepreneur Partners VII-B, L.P. ("EP7-B") (together, the "USVP VII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP VII Funds. Casey Tansey is the sole managing partner of PMG VII and may be deemed to have sole dispositive power over the reported securities held by the USVP VII Funds and may be deemed to have shared voting power over the reported securities held by the USVP VII Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein

Row 2 · 2021-08-17 · Other · Disposed 31,250 · Balance 91,008

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by each of U.S. Venture Partners VII, L.P. ("USVP VII") and 2180 Associates Fund VII, L.P. ("2180-VII'), without additional consideration to its partners or members. Presidio Management Group VII, L.L.C. ("PMG VII") received a pro-rata in-kind distribution from 2180-VII.

F2: Presidio Management Group VII, L.L.C. ("PMG VII"), the general partner of each of U.S. Venture Partners VII, L.P. ("USVP VII"), 2180 Associates Fund VII, L.P. ("2180-VII), USVP Entrepreneur Partners VII-A, L.P. ("EP7-A") and USVP Entrepreneur Partners VII-B, L.P. ("EP7-B") (together, the "USVP VII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP VII Funds. Casey Tansey is the sole managing partner of PMG VII and may be deemed to have sole dispositive power over the reported securities held by the USVP VII Funds and may be deemed to have shared voting power over the reported securities held by the USVP VII Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein

Row 3 · 2021-08-17 · Other · Acquired 312 · Balance 312

F1: Represents a pro-rata in-kind distribution of the Issuer's common stock held directly by each of U.S. Venture Partners VII, L.P. ("USVP VII") and 2180 Associates Fund VII, L.P. ("2180-VII'), without additional consideration to its partners or members. Presidio Management Group VII, L.L.C. ("PMG VII") received a pro-rata in-kind distribution from 2180-VII.

Row 4 · 2021-08-18 · Sale · Disposed 312 · Balance 0

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.45 to $20.50 inclusive for sales on 8/18/2021. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

Row 5 · 2021-08-18 · Sale · Disposed 15,625 · Balance 45,505

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.45 to $20.50 inclusive for sales on 8/18/2021. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group VII, L.L.C. ("PMG VII"), the general partner of each of U.S. Venture Partners VII, L.P. ("USVP VII"), 2180 Associates Fund VII, L.P. ("2180-VII), USVP Entrepreneur Partners VII-A, L.P. ("EP7-A") and USVP Entrepreneur Partners VII-B, L.P. ("EP7-B") (together, the "USVP VII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP VII Funds. Casey Tansey is the sole managing partner of PMG VII and may be deemed to have sole dispositive power over the reported securities held by the USVP VII Funds and may be deemed to have shared voting power over the reported securities held by the USVP VII Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein

Row 6 · 2021-08-18 · Sale · Disposed 15,625 · Balance 45,505

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.45 to $20.50 inclusive for sales on 8/18/2021. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group VII, L.L.C. ("PMG VII"), the general partner of each of U.S. Venture Partners VII, L.P. ("USVP VII"), 2180 Associates Fund VII, L.P. ("2180-VII), USVP Entrepreneur Partners VII-A, L.P. ("EP7-A") and USVP Entrepreneur Partners VII-B, L.P. ("EP7-B") (together, the "USVP VII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP VII Funds. Casey Tansey is the sole managing partner of PMG VII and may be deemed to have sole dispositive power over the reported securities held by the USVP VII Funds and may be deemed to have shared voting power over the reported securities held by the USVP VII Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein

Row 7 · Balance 5,000

F2: Presidio Management Group VII, L.L.C. ("PMG VII"), the general partner of each of U.S. Venture Partners VII, L.P. ("USVP VII"), 2180 Associates Fund VII, L.P. ("2180-VII), USVP Entrepreneur Partners VII-A, L.P. ("EP7-A") and USVP Entrepreneur Partners VII-B, L.P. ("EP7-B") (together, the "USVP VII Funds"), has sole voting and dispositive power with respect to the shares held by the USVP VII Funds. Casey Tansey is the sole managing partner of PMG VII and may be deemed to have sole dispositive power over the reported securities held by the USVP VII Funds and may be deemed to have shared voting power over the reported securities held by the USVP VII Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein

Row 1 · 2022-08-01 · Sale · Disposed 25,896 · Balance 4,066,868

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 3 · 2022-08-02 · Sale · Disposed 27,348 · Balance 4,039,520

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 5 · 2022-08-03 · Sale · Disposed 57,580 · Balance 3,981,940

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 2 · 2022-08-01 · Sale · Disposed 807 · Balance 130,218

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 4 · 2022-08-02 · Sale · Disposed 853 · Balance 129,365

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.

Row 6 · 2022-08-03 · Sale · Disposed 1,796 · Balance 127,569

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.77 to $0.81, inclusive for sales on 8/1/22; prices ranging from $0.78 to $0.83, inclusive for sales on 8/2/22; and prices ranging from $0.79 to $0.83, inclusive for sales on 8/3/22;. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2: Presidio Management Group X, L.L.C. ("PMG X"), the general partner of each of U.S. Venture Partners X, L.P. ("USVP X") and USVP X Affiliates L.P. ("AFF X") (together, the "USVP X Funds"), has sole voting and dispositive power with respect to the shares held by the USVP X Funds. Jonathan Root is a managing member of PMG X with additional rights with respect to the Issuer's securities, and may be deemed to have sole voting and dispositive power with respect to the shares. Casey Tansey is the sole managing partner of PMG X and may be deemed to have sole dispositive power over the reported securities held by the USVP X Funds and may be deemed to have shared voting power over the reported securities held by the USVP X Funds. Each of the foregoing persons disclaims beneficial ownership of such securities, except to the extent of any pecuniary interest therein.