X0306 4 2018-07-02 0 0001595585 Tricida, Inc. TCDA 0001744981 Isern Brian M. 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001744971 Sibling Capital Ventures LLC 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001744973 Sibling Capital Ventures II LLC 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001744974 Sibling Capital Ventures III LLC 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001744972 Sibling Capital Ventures IV LLC 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001593693 Sibling Capital Fund II-A L.P. 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001629421 Sibling Capital Fund II-B L.P. 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001680279 Sibling Capital Fund II-C L.P. 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001708981 Sibling Capital Fund II-D L.P. 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group 0001744976 Sibling Co-Investment LLC 702 SAN ANTONIO STREET AUSTIN TX 78701 0 0 1 1 possible member of 10% group Common Stock 2018-07-02 4 C 0 169936 A 245312 I By Sibling Co-Investment LLC Common Stock 2018-07-02 4 C 0 893292 A 893292 I By Sibling Capital Fund II-A L.P. Common Stock 2018-07-02 4 C 0 3139600 A 3139600 I By Sibling Capital Fund II-B L.P. Common Stock 2018-07-02 4 C 0 1810195 A 1810195 I By Sibling Capital Fund II-C L.P. Common Stock 2018-07-02 4 C 0 599379 A 599379 I By Sibling Capital Fund II-D L.P. Common Stock 2018-07-02 4 P 0 463158 19 A 463158 I By Sibling Insiders Fund II L.P. Series A Convertible Preferred Stock 2018-07-02 4 C 0 676349 D Common Stock 169936 0 I By Sibling Co-Investment LLC Series A Convertible Preferred Stock 2018-07-02 4 C 0 3555304 D Common Stock 893292 0 I By Sibling Capital Fund II-A L.P. Series B Convertible Preferred Stock 2018-07-02 4 C 0 12495612 D Common Stock 3139600 0 I By Sibling Capital Fund II-B L.P. Series C Convertible Preferred Stock 2018-07-02 4 C 0 7204578 D Common Stock 1810195 0 I By Sibling Capital Fund II-C L.P. Series D Convertible Preferred Stock 2018-07-02 4 C 0 2385532 D Common Stock 599379 0 I By Sibling Capital Fund II-D L.P. The Issuer's (i) Series A Convertible Preferred Stock, (ii) Series B Convertible Preferred Stock, (iii) Series C Convertible Preferred Stock and (iv) Series D Convertible Preferred Stock were each converted upon the closing of the Issuer's initial public offering of its Common Stock into the Issuer's Common Stock at a rate of 1/3.98 (or on an approximately 1-for-0.251256 basis) for no additional consideration and had no expiration date. Sibling Co-Investment LLC converted 676,349 shares of Series A Convertible Preferred Stock of the Issuer into 169,936 shares of Common Stock of the Issuer. Sibling Co-Investment LLC is also a direct beneficial owner of 75,376 shares of Common Stock of the Issuer. Sibling Capital Ventures LLC is the sole manager of Sibling Co-Investment LLC. As co-manager of Sibling Capital Ventures LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. Sibling Capital Fund II-A L.P. converted 3,555,304 shares of Series A Convertible Preferred Stock of the Issuer into 893,292 shares of Common Stock of the Issuer. Sibling Capital Ventures LLC is the sole general partner of Sibling Capital Fund II-A L.P. As co-manager of Sibling Capital Ventures LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. Sibling Capital Fund II-B L.P. converted 12,495,612 shares of Series B Convertible Preferred Stock of the Issuer into 3,139,600 shares of Common Stock of the Issuer. Sibling Capital Ventures II LLC is the sole general partner of Sibling Capital Fund II-B L.P. As co-manager of Sibling Capital Ventures II LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. Sibling Capital Fund II-C L.P. converted 7,204,578 shares of Series C Convertible Preferred Stock of the Issuer into 1,810,195 shares of Common Stock of the Issuer. Sibling Capital Ventures III LLC is the sole general partner of Sibling Capital Fund II-C L.P. As co-manager of Sibling Capital Ventures III LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. Sibling Capital Fund II-D L.P. converted 2,385,532 shares of Series D Convertible Preferred Stock of the Issuer into 599,379 shares of Common Stock of the Issuer. Sibling Capital Ventures IV LLC is the sole general partner of Sibling Capital Fund II-D L.P. As co-manager of Sibling Capital Ventures IV LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. Sibling Insiders Fund II L.P. purchased 463,158 shares of Common Stock of the Issuer. Sibling Insiders II LLC is the sole general partner of Sibling Insiders Fund II L.P. As co-manager of Sibling Insiders II LLC, Brian M. Isern may be deemed to be an indirect beneficial owner of such shares. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise. /s/ Brian M. Isern 2018-07-02 Sibling Capital Ventures LLC, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Ventures II LLC, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Ventures III LLC, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Ventures IV LLC, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Fund II-A L.P., By: Sibling Capital Ventures LLC, its General Partner, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Fund II-B L.P., By: Sibling Capital Ventures II LLC, its General Partner, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Fund II-C L.P., By: Sibling Capital Ventures III LLC, its General Partner, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Capital Fund II-D L.P., By: Sibling Capital Ventures IV LLC, its General Partner, By: /s/ Brian M. Isern, President 2018-07-02 Sibling Co-Investment LLC, By: Sibling Capital Ventures LLC, its Manager, By: /s/ Brian M. Isern, President 2018-07-02