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        | 
                Name 
               |  |  | 
                Class 
               |  |  | 
                Age 
               |  |  | 
                Position 
               |  |  | 
                Director
                 Since |  |  | 
                Current
                 Term Expires |  |  | 
                Expiration
                 of Term For Which Nominated |  | 
| Nominees for Director |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
                Myla Lai-Goldman, 
                 M.D.(1)(2)(4) |  |  | 
                II 
               |  |  | 
                65 
               |  |  | Director |  |  | 
                2021 
               |  |  | 
                2023 
               |  |  | 
                2026 
               |  | 
| 
                Brian McKelligon 
               |  |  | 
                II 
               |  |  | 
                54 
               |  |  | 
                President, Chief Executive Officer and Director 
               |  |  | 
                2017 
               |  |  | 
                2023 
               |  |  | 
                2026 
               |  | 
| 
                Thomas Raffin, M.D. 
               |  |  | 
                II 
               |  |  | 
                76 
               |  |  | Director |  |  | 
                2015 
               |  |  | 
                2023 
               |  |  | 
                2026 
               |  | 
| Directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
                Scott Mendel(1)(2)(3)
               |  |  | 
                III 
               |  |  | 
                56 
               |  |  | Director |  |  | 
                2021 
               |  |  | 
                2024 
               |  |  | 
                —
               |  | 
| 
                Thomas P. Schnettler(3)
               |  |  | 
                III 
               |  |  | 
                66 
               |  |  | Director |  |  | 
                2019 
               |  |  | 
                2024 
               |  |  | 
                —
               |  | 
| 
                Robert Shepler 
               |  |  | 
                III 
               |  |  | 
                66 
               |  |  | Chair of the Board |  |  | 
                2015 
               |  |  | 
                2024 
               |  |  | 
                —
               |  | 
| 
                Garry Nolan, Ph.D.(3)(4)
               |  |  | 
                I 
               |  |  | 
                62 
               |  |  | Director |  |  | 
                2015 
               |  |  | 
                2025 
               |  |  | 
                —
               |  | 
| 
                Matthew Winkler, 
                 Ph.D.(1)(2)(4) |  |  | 
                I 
               |  |  | 
                70 
               |  |  | Director |  |  | 
                2017 
               |  |  | 
                2025 
               |  |  | 
                —
               |  | 
|  |  | 
                Board Diversity Matrix (as of April 17, 2023) 
               |  |  | ||||||||||||||||||||||||||||
|  |  | 
                Total Number of Directors: 
               |  |  |  | 
                8 
               |  |  | ||||||||||||||||||||||||
|  |  |  |  |  |  | 
                Female 
               |  |  |  | 
                Male 
               |  |  |  | 
                Non-Binary 
               |  |  |  | 
                Did Not
                 Disclose Gender |  |  | ||||||||||||
|  |  | Part I: Gender Identity |  |  | ||||||||||||||||||||||||||||
|  |  | Directors |  |  |  |  |  | 1 |  |  |  |  |  |  | 7 |  |  |  |  |  |  | 0 |  |  |  |  |  |  | 0 |  |  |  | 
|  |  | Part II: Demographic Background |  |  | ||||||||||||||||||||||||||||
|  |  | White |  |  |  |  |  | 1 |  |  |  |  |  |  | 7 |  |  |  |  |  |  | 0 |  |  |  |  |  |  | 0 |  |  |  | 
|  |  | LGBTQ+ |  |  |  | 
                2
               |  |  | ||||||||||||||||||||||||
| 
                Position 
               |  |  | 
                Annual Retainer 
               |  | |||
| 
                Board Membership 
               |  |  |  | $ | 40,000 |  |  | 
| 
                Non-Executive Chair of the Board 
               |  |  |  | $ | 40,000 |  |  | 
| 
                Chair of Audit Committee 
               |  |  |  | $ | 20,000 |  |  | 
| 
                Chair of the Compensation Committee 
               |  |  |  | $ | 15,000 |  |  | 
| 
                Chair of the Nominating and Corporate Governance Committee 
               |  |  |  | $ | 10,000 |  |  | 
| 
                Chair of the Innovation and Technology Committee 
               |  |  |  | $ | 10,000 |  |  | 
| 
                Audit Committee Members other than Chair 
               |  |  |  | $ | 10,000 |  |  | 
| 
                Compensation Committee Members other than Chair 
               |  |  |  | $ | 7,500 |  |  | 
| 
                Nominating and Corporate Governance Committee Members other than Chair 
               |  |  |  | $ | 5,000 |  |  | 
| 
                Innovation and Technology Committee Members other than Chair 
               |  |  |  | $ | 5,000 |  |  | 
| 
                Name 
               |  |  | 
                Cash
                 Compensation(1) |  |  | 
                Option
                 Grants(2) |  |  | 
                Total 
               |  | |||||||||
| 
                Myla Lai-Goldman, M.D. 
               |  |  |  | $ | 60,625 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 230,624 |  |  | 
| 
                Scott Mendel 
               |  |  |  | $ | 76,875 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 246,874 |  |  | 
| 
                Garry Nolan, Ph.D. 
               |  |  |  | $ | 48,750 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 218,749 |  |  | 
| 
                Thomas Raffin, M.D. 
               |  |  |  | $ | 43,750 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 213,749 |  |  | 
| 
                Thomas P. Schnettler 
               |  |  |  | $ | 52,500 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 222,499 |  |  | 
| 
                Robert Shepler 
               |  |  |  | $ | 81,250 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 251,249 |  |  | 
| 
                Matthew Winkler, Ph.D. 
               |  |  |  | $ | 61,250 |  |  |  |  | $ | 169,999 |  |  |  |  | $ | 231,249 |  |  | 
|  |  |  | 
                2022 
               |  |  | 
                2021 
               |  | ||||||
| 
                Audit Fees(1)
               |  |  |  | $ | 379,317 |  |  |  |  | $ | 295,897 |  |  | 
| 
                Audit Related Fees(2)
               |  |  |  |  | 82,950 |  |  |  |  |  | 433,125 |  |  | 
| 
                Tax Fees(3)
               |  |  |  |  | 66,999 |  |  |  |  |  | 84,158 |  |  | 
| 
                All Other Fees 
               |  |  |  |  | — |  |  |  |  |  | — |  |  | 
| 
                Total
               |  |  |  | $ | 529,266 |  |  |  |  | $ | 813,180 |  |  | 
| 
                Name and Address of Beneficial Owner 
               |  |  | 
                Number of Shares
                 Beneficially Owned |  |  | 
                Percentage of
                 Shares Beneficially Owned(1) |  | ||||||
| 5% and Greater Stockholders |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
                Entities affiliated with Telegraph Hill Partners(2)
               |  |  |  |  | 15,675,247 |  |  |  |  |  | 40.8% |  |  | 
| 
                Entities affiliated with PSC Capital Partners LLC(3)
               |  |  |  |  | 2,737,161 |  |  |  |  |  | 7.1% |  |  | 
| Named Executive Officers and Directors |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
                Brian McKelligon(4)
               |  |  |  |  | 957,400 |  |  |  |  |  | 2.4% |  |  | 
| 
                Ehab El-Gabry, M.D.(5)
               |  |  |  |  | 40,625 |  |  |  |  |  | * |  |  | 
| 
                Marilee Moy(6)
               |  |  |  |  | 40,000 |  |  |  |  |  | * |  |  | 
| 
                Myla Lai-Goldman, M.D.(7)
               |  |  |  |  | 12,997 |  |  |  |  |  | * |  |  | 
| 
                Scott Mendel(8)
               |  |  |  |  | 20,354 |  |  |  |  |  | * |  |  | 
| 
                Garry Nolan, Ph.D.(9)
               |  |  |  |  | 651,656 |  |  |  |  |  | 1.7% |  |  | 
| 
                Thomas Raffin, M.D.(10)
               |  |  |  |  | 231,452 |  |  |  |  |  | * |  |  | 
| 
                Thomas P. Schnettler(11)
               |  |  |  |  | 16,860 |  |  |  |  |  | * |  |  | 
| 
                Robert Shepler(12)
               |  |  |  |  | 266,452 |  |  |  |  |  | * |  |  | 
| 
                Matthew Winkler, Ph.D.(13)
               |  |  |  |  | 797,985 |  |  |  |  |  | 2.1% |  |  | 
| 
                All executive officers and directors as a group (14 persons)(14)
               |  |  |  |  | 3,388,601 |  |  |  |  |  | 8.5% |  |  | 
| 
                Name 
               |  |  | 
                Age 
               |  |  | 
                Position(s) 
               |  | 
| Brian McKelligon |  |  | 
                54 
               |  |  | President and Chief Executive Officer and Director |  | 
| Johnny Ek |  |  | 
                48 
               |  |  | Chief Financial Officer |  | 
| Ehab El-Gabry |  |  | 
                55 
               |  |  | Chief Medical Officer |  | 
| Jennifer Kamocsay |  |  | 
                52 
               |  |  | General Counsel |  | 
| Marilee Moy |  |  | 
                64 
               |  |  | Chief People Officer |  | 
| Frederic Pla, Ph.D. |  |  | 
                64 
               |  |  | Chief Operating Officer |  | 
| Niro Ramachandran, Ph.D. |  |  | 
                48 
               |  |  | Chief Business Officer |  | 
| 
                Name and principal position 
               |  |  | 
                Year 
               |  |  | 
                Salary
                 ($) |  |  | 
                Bonus
                 ($)(1) |  |  | 
                Stock
                 awards ($)(2) |  |  | 
                Option
                 awards ($)(3) |  |  | 
                Non-Equity
                 Incentive Plan Compensation ($)(4) |  |  | 
                All other
                 compensation ($) |  |  | 
                Total
                 ($) |  | ||||||||||||||||||||||||
| 
                Brian McKelligon
                 Chief Executive Officer |  |  |  |  | 2022 |  |  |  |  |  | 517,500 |  |  |  |  |  | — |  |  |  |  |  | 950,400 |  |  |  |  |  | 951,296 |  |  |  |  |  | 630,000 |  |  |  |  |  | 443(7) |  |  |  |  |  | 3,049,639 |  |  | 
|  |  |  | 2021 |  |  |  |  |  | 393,333 |  |  |  |  |  | — |  |  |  |  |  | — |  |  |  |  |  | 1,700,389 |  |  |  |  |  | 173,599 |  |  |  |  |  | — |  |  |  |  |  | 2,267,321 |  |  | ||
| 
                Ehab El-Gabry, M.D.
                 Chief Medical Officer |  |  |  |  | 2022 |  |  |  |  |  | 327,273(5) |  |  |  |  |  | 25,000 |  |  |  |  |  | — |  |  |  |  |  | 719,142 |  |  |  |  |  | 180,000 |  |  |  |  |  | 5,582(8) |  |  |  |  |  | 1,256,997 |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||||||||
| 
                Marilee Moy
                 Chief People Officer |  |  |  |  | 2022 |  |  |  |  |  | 332,917(6) |  |  |  |  |  | 30,000 |  |  |  |  |  | — |  |  |  |  |  | 638,856 |  |  |  |  |  | 136,000 |  |  |  |  |  | 3,806(8) |  |  |  |  |  | 1,141,579 |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||||||||
|  |  |  |  |  |  |  |  |  | 
                Option Awards(1)
               |  |  | 
                Stock Awards(1)
               |  | ||||||||||||||||||||||||||||||
| 
                Name 
               |  |  | 
                Grant Date 
               |  |  | 
                Number of
                 Securities Underlying Unexercised Options (#) Exercisable |  |  | 
                Number of
                 Securities Underlying Unexercised Options (#) Unexercisable |  |  | 
                Options
                 Exercise Price ($)(2) |  |  | 
                Option
                 Expiration Date |  |  | 
                Number of
                 Shares or Units of Stock That Have Not Vested (#) |  |  | 
                Market
                 Value of Shares or Units of Stock That Have Not Vested ($)(3) |  | |||||||||||||||||||||
| 
                Brian McKelligon 
               |  |  |  |  | 11/09/2017 |  |  |  |  |  | 338,129(4) |  |  |  |  |  | — |  |  |  |  |  | 0.30 |  |  |  |  |  | 11/09/2027 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | 
|  |  |  | 11/09/2017 |  |  |  |  |  | 117,709(5) |  |  |  |  |  | — |  |  |  |  |  | 0.30 |  |  |  |  |  | 11/09/2027 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | ||
|  |  |  | 05/02/2019 |  |  |  |  |  | 248,318(6) |  |  |  |  |  | — |  |  |  |  |  | 0.44 |  |  |  |  |  | 05/02/2029 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | ||
|  |  |  | 05/02/2019 |  |  |  |  |  | 82,772(5) |  |  |  |  |  | — |  |  |  |  |  | 0.44 |  |  |  |  |  | 05/02/2029 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | ||
|  |  |  | 03/24/2021 |  |  |  |  |  | 93,888(7) |  |  |  |  |  | 120,704 |  |  |  |  |  | 16.12 |  |  |  |  |  | 03/24/2031 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | ||
|  |  |  | 03/23/2022 |  |  |  |  |  | — |  |  |  |  |  | 160,000(8) |  |  |  |  |  | 11.88 |  |  |  |  |  | 03/23/2032 |  |  |  |  |  | 80,000(9) |  |  |  |  |  | 765,600 |  |  | ||
| 
                Ehab El-Gabry 
               |  |  |  |  | 05/19/2022 |  |  |  |  |  | — |  |  |  |  |  | 150,000(10) |  |  |  |  |  | 9.47 |  |  |  |  |  | 05/19/2032 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | 
| 
                Marilee Moy 
               |  |  |  |  | 02/24/2022 |  |  |  |  |  | — |  |  |  |  |  | 120,000(11) |  |  |  |  |  | 10.85 |  |  |  |  |  | 02/24/2032 |  |  |  |  |  | — |  |  |  |  |  | — |  |  | 
| 
                Plan category 
               |  |  | 
                Number of
                 securities to be issued upon exercise of outstanding options, warrants and rights |  |  | 
                Weighted-average
                 exercise price of outstanding options, warrants and rights |  |  | 
                Number of
                 securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) |  | |||||||||
|  |  |  | 
                (a) 
               |  |  | 
                (b) 
               |  |  | 
                (c) 
               |  | |||||||||
| 
                Equity compensation plans approved by security holders 
               |  |  |  |  | 6,590,725(1) |  |  |  |  | $ | 8.71(2) |  |  |  |  |  | 1,603,622(3) |  |  | 
| 
                Equity compensation plans not approved by security holders 
               |  |  |  |  | — |  |  |  |  |  | — |  |  |  |  |  | — |  |  | 
| 
                Total 
               |  |  |  |  | 6,590,725 |  |  |  |  |  |  |  |  |  |  |  | 1,603,622 |  |  | 
| 
                Director 
               |  |  | 
                Principal stockholder 
               |  | 
| Thomas Raffin |  |  | Funds affiliated with Telegraph Hill Partners |  | 
| Thomas P. Schnettler |  |  | Piper Sandler Merchant Banking Fund II, L.P. |  | 
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