X0306 4 2021-07-19 0 0001531177 Sight Sciences, Inc. SGHT 0001413224 Hicks Mack H. 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 1 0 1 0 0001810192 HEP Partners LLC 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 0001872481 HH Sight LLC 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 0001872472 HH Sight Partners GP, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 0001667542 HH Sight Partners, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 0001667541 HH-IOP Partners, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 0000938201 HICKS THOMAS O 2200 ROSS AVENUE, SUITE 5000 DALLAS TX 75201 0 0 1 0 Common Stock 2021-07-19 4 C 0 2669530 A 2669530 I See Footnotes Common Stock 2021-07-19 4 C 0 1717140 A 1717140 I See Footnotes Common Stock 86206 I See Footnotes Series A Redeemable Convertible Preferred Stock 2021-07-19 4 C 0 3768112 D Common Stock 1884056 0 I See Footnotes Series B Redeemable Convertible Preferred Stock 2021-07-19 4 C 0 513472 D Common Stock 256736 0 I See Footnotes Series B Redeemable Convertible Preferred Stock 2021-07-19 4 C 0 2764860 D Common Stock 1382430 0 I See Footnotes Series C Redeemable Convertible Preferred Stock 2021-07-19 4 C 0 1057476 D Common Stock 528738 0 I See Footnotes Series C Redeemable Convertible Preferred Stock 2021-07-19 4 C 0 669420 D Common Stock 334710 0 I See Footnotes The preferred stock converted into common stock on a 2 for 1 basis automatically upon the closing of the initial public offering of the Issuer's common stock, effective July 19, 2021. The shares had no expiration date. The receipt of such common stock in connection with such automatic conversion of preferred stock, is exempt from Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), pursuant to Rule 16b-6(b) thereunder. Represents common stock received by HH Sight Partners, L.P. ("HH Sight Partners") in connection with the automatic conversion of all of its preferred stock. This statement is jointly filed by and on behalf of each of Mack H. Hicks, Thomas O. Hicks, HH Sight Partners, HH-IOP Partners, L.P. ("HH-IOP"), HH Sight Partners GP, L.P. (the "GP"), HH Sight LLC (the "GP of GP"), and HEP Partners LLC ("HEP"). HH Sight Partners, HH-IOP, and Mack H. Hicks, as Trustee of the MHH 2016 Descendants Trust, are the direct beneficial owners of the securities covered by this statement. The GP is the general partner of, and may be deemed to beneficially own securities owned by, each of HH Sight Partners and HH-IOP. The GP of the GP is the general partner of, and may be deemed to beneficially own securities owned by, the GP. Mack H. Hicks and Thomas O. Hicks are the co-managers of, and may each be deemed to beneficially own securities owned by, the GP of the GP. HEP is the investment manager of, and may be deemed to beneficially own securities owned by, each of HH Sight Partners and HH-IOP. Thomas O. Hicks is the Chairman, President, and Chief Executive Officer of, and may be deemed to beneficially own securities owned by, HEP. Each reporting person states that neither the filing of this statement nor anything herein shall be deemed an admission that such person is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any securities covered by this statement. Each reporting person disclaims beneficial ownership of the securities covered by this statement, except to the extent of the pecuniary interest of such person in such securities. Each reporting person may be deemed to be a member of a group with respect to the Issuer or securities of the Issuer for purposes of Section 13(d) or 13(g) of the Exchange Act. Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) or 13(g) of the Exchange Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer. Represents common stock directly held by HH Sight Partners. Represents common stock received by HH-IOP in connection with the automatic conversion of all of its preferred stock. Represents common stock directly held by HH-IOP. Represents common stock directly held by Mack H. Hicks, as Trustee of the MHH 2016 Descendants Trust. Represents preferred stock directly held by HH Sight Partners. Represents preferred stock directly held by HH-IOP. HEP PARTNERS LLC, By: /s/ Thomas O. Hicks, Name: Thomas O. Hicks, Title: Managing Member 2021-07-19 HH SIGHT LLC, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 2021-07-19 HH SIGHT PARTNERS GP, L.P., By: HH Sight LLC, Its: General Partner, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 2021-07-19 HH SIGHT PARTNERS, L.P., By: HH Sight Partners GP, L.P., Its: General Partner, By: HH Sight LLC, Its: General Partner, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 2021-07-19 HH-IOP PARTNERS, L.P., By: HH Sight Partners GP, L.P., Its: General Partner, By: HH Sight LLC, Its: General Partner, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 2021-07-19 THOMAS O. HICKS, By: /s/ Thomas O. Hicks 2021-07-19 MACK H. HICKS, By: /s/ Mack H. Hicks 2021-07-19