X0306 4 2022-07-06 0 0001531177 Sight Sciences, Inc. SGHT 0001413224 Hicks Mack H. 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 1 0 1 0 0001810192 HEP Partners LLC 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 0001872481 HH Sight LLC 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 0001872472 HH Sight Partners GP, L.P. 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 0001667542 HH Sight Partners, L.P. 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 0001667541 HH-IOP Partners, L.P. 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 0000938201 HICKS THOMAS O 2200 ROSS AVENUE, SUITE 4600 W DALLAS TX 75201 0 0 1 0 Common Stock 2022-07-06 4 J 0 2669530 0.00 D 0 I See Footnotes Common Stock 2022-07-06 4 J 0 1717140 0.00 D 0 I See Footnotes Common Stock 89780 D Common Stock 444588 I See Footnotes Common Stock 86206 I See Footnotes Represents a pro rata distribution in-kind of all the shares formerly held by HH Sight Partners, L.P. ("HH Sight Partners") to its partners (the "HH Sight Distribution"). As a result of the HH Sight Distribution, HH Sight Partners will no longer be a reporting person. 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 (individually, as Trustee of the MHH 2016 Descendants Trust, and as the ultimate owner and control person of MHH Ventures Ltd.) 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 Securities Exchange Act of 1934, as amended (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 a pro rata distribution in-kind of all the shares formerly held by HH-IOP to its partners (the "HH-IOP Distribution"). As a result of both the HH Sight Distribution and the HH-IOP Distribution, in addition to HH Sight Partners, each of HH-IOP, the GP, the GP of the GP, HEP and Thomas O. Hicks will no longer be a reporting person. Represents common stock directly held by HH-IOP. Represents shares ultimately received by Mack H. Hicks from HH Sight Partners as a result of the HH Sight Distribution. The acquisition of shares by Mack H. Hicks in the HH Sight Distribution constituted a change in the form of beneficial ownership without a change in pecuniary interest that is exempt from Section 16 of the Exchange Act pursuant to Rule 16a-13 thereunder. Rule 16a-9(a) under the Exchange Act may also exempt the acquisition of shares by Mack H. Hicks in the HH Sight Distribution from Section 16 of the Exchange Act. Represents the aggregate shares ultimately received by MHH Ventures Ltd. from both HH Sight Partners and HH-IOP as a result of the HH Sight Distribution and the HH-IOP Distribution. MHH Ventures Ltd. is ultimately owned and controlled by Mack H. Hicks and therefore Mack H. Hicks may be deemed to beneficially own securities owned by MHH Ventures Ltd. The acquisition of shares by MHH Ventures Ltd. in each of the HH Sight Distribution and the HH-IOP Distribution constituted a change in the form of beneficial ownership without a change in pecuniary interest that is exempt from Section 16 of the Exchange Act pursuant to Rule 16a-13 thereunder. Rule 16a-9(a) under the Exchange Act may also exempt the acquisition of shares by MHH Ventures Ltd. in each of the HH Sight Distribution and the HH-IOP Distribution from Section 16 of the Exchange Act. Represents common stock held by Mack H. Hicks, as Trustee of the MHH 2016 Descendants Trust. HEP PARTNERS LLC, By: /s/ Thomas O. Hicks, Name: Thomas O. Hicks, Title: Managing Member 2022-07-08 HH SIGHT LLC, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 2022-07-08 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 2022-07-08 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 2022-07-08 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 2022-07-08 THOMAS O. HICKS, By: /s/ Thomas O. Hicks 2022-07-08 MACK H. HICKS, By: /s/ Mack H. Hicks 2022-07-08