Sec Form 4 Filing - Hicks Mack H. @ Sight Sciences, Inc. - 2021-07-19

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Hicks Mack H. 2. Issuer Name and Ticker or Trading Symbol Sight Sciences, Inc. [ SGHT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2200 ROSS AVENUE, SUITE 5000 3. Date of Earliest Transaction (MM/DD/YY) 07/19/2021 (Street) DALLAS, TX75201 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 07/19/2021 C 2,669,530 ( 1 ) A 2,669,530 ( 2 ) I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 ) Common Stock 07/19/2021 C 1,717,140 ( 1 ) A 1,717,140 ( 8 ) I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 9 ) Common Stock 86,206 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 10 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Series A Redeemable Convertible Preferred Stock ( 1 ) 07/19/2021 C 3,768,112 ( 1 ) ( 1 ) ( 1 ) Common Stock 1,884,056 ( 1 ) 0 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 11 ) Series B Redeemable Convertible Preferred Stock ( 1 ) 07/19/2021 C 513,472 ( 1 ) ( 1 ) ( 1 ) Common Stock 256,736 ( 1 ) 0 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 11 ) Series B Redeemable Convertible Preferred Stock ( 1 ) 07/19/2021 C 2,764,860 ( 1 ) ( 1 ) ( 1 ) Common Stock 1,382,430 ( 1 ) 0 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 12 ) Series C Redeemable Convertible Preferred Stock ( 1 ) 07/19/2021 C 1,057,476 ( 1 ) ( 1 ) ( 1 ) Common Stock 528,738 ( 1 ) 0 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 11 ) Series C Redeemable Convertible Preferred Stock ( 1 ) 07/19/2021 C 669,420 ( 1 ) ( 1 ) Common Stock 334,710 ( 1 ) 0 I See Footnotes ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 12 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hicks Mack H. 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X X HEP Partners LLC 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X HH Sight LLC 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X HH Sight Partners GP, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X HH Sight Partners, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X HH-IOP Partners, L.P. 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X HICKS THOMAS O 2200 ROSS AVENUE, SUITE 5000 DALLAS, TX75201 X Signatures HEP PARTNERS LLC, By: /s/ Thomas O. Hicks, Name: Thomas O. Hicks, Title: Managing Member 07/19/2021 Signature of Reporting Person Date HH SIGHT LLC, By: /s/ Mack H. Hicks, Name: Mack H. Hicks, Title: Co-Manager 07/19/2021 Signature of Reporting Person Date 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 07/19/2021 Signature of Reporting Person Date 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 07/19/2021 Signature of Reporting Person Date 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 07/19/2021 Signature of Reporting Person Date THOMAS O. HICKS, By: /s/ Thomas O. Hicks 07/19/2021 Signature of Reporting Person Date MACK H. HICKS, By: /s/ Mack H. Hicks 07/19/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )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. ( 2 )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. ( 3 )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. ( 4 )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. ( 5 )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. ( 6 )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. ( 7 )Represents common stock directly held by HH Sight Partners. ( 8 )Represents common stock received by HH-IOP in connection with the automatic conversion of all of its preferred stock. ( 9 )Represents common stock directly held by HH-IOP. ( 10 )Represents common stock directly held by Mack H. Hicks, as Trustee of the MHH 2016 Descendants Trust. ( 11 )Represents preferred stock directly held by HH Sight Partners. ( 12 )Represents preferred stock directly held by HH-IOP.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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