KCK Ltd. reports 1.44M shares in Sight Sciences (SGHT) — 2.7% stake

Rhea-AI Filing Summary

Sight Sciences, Inc. Schedule 13G/A amendment shows KCK Ltd. and Nael Karim Kassar beneficially own 1,438,094 shares of Common Stock, representing 2.7% of the class based on 54,005,984 shares outstanding as of February 26, 2026. The filing reports shared voting and dispositive power over these shares and is signed by the filer and Sight Sciences' CEO.

Insights

Institutional Ownership Analyst

Passive holder reports a sub-5% stake with shared control.

The filing lists 1,438,094 shares held by KCK Ltd./Nael Karim Kassar, equal to 2.7% of the outstanding common stock as of February 26, 2026. This position falls below the 5% reporting threshold that typically indicates passive investment intent under Schedule 13G/A.

Because the filing records shared voting and dispositive power, subsequent changes in voting arrangements or holdings would be the primary items to watch in future amendments.

Corporate Governance Specialist

Shared control implies coordinated ownership, not activist intent.

The cover data shows zero sole voting/dispositive power and 1,438,094 in shared power, which signals a non‑controlling stake. Schedule 13G/A classification generally reflects a passive investor rather than an intent to influence management.

Future filings may disclose whether the holder moves above reporting thresholds or shifts to a Schedule 13D, which would change governance implications.

Key Figures

Shares beneficially owned: 1,438,094 shares Percent of class: 2.7% Shares outstanding: 54,005,984 shares +2 more

5 metrics

Shares beneficially owned 1,438,094 shares Beneficial ownership reported by KCK Ltd./Nael Karim Kassar

Percent of class 2.7% Based on 54,005,984 shares outstanding as of February 26, 2026

Shares outstanding 54,005,984 shares Outstanding common stock as of February 26, 2026 (Form 10-K reference)

Shared voting power 1,438,094 shares Reported shared voting power on the cover page

Shared dispositive power 1,438,094 shares Reported shared dispositive power on the cover page

Key Terms

Schedule 13G/A, beneficially owned, shared dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 4; SCHEDULE 13G/A appears as the form type"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"Amount beneficially owned: 1,438,094 shares of Common Stock"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared dispositive power regulatory

"Shared Dispositive Power 1,438,094.00 listed on the cover page"

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

Sight Sciences, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

82657M105

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 82657M105

1

Names of Reporting Persons

KCK LTD.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

BERMUDA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,438,094.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,438,094.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,438,094.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.7 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 82657M105

1

Names of Reporting Persons

Nael Karim Kassar

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

FRANCE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,438,094.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,438,094.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,438,094.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.7 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Sight Sciences, Inc.
(b)	Address of issuer's principal executive offices: 4040 CAMPBELL AVE,, SUITE 100, MENLO PARK, CALIFORNIA, 94025.
Item 2.
(a)	Name of person filing: KCK Ltd. Nael Karim Kassar
(b)	Address or principal business office or, if none, residence: KCK Ltd. Corner House 20 Parliament Street Hamilton, Bermuda HM12
(c)	Citizenship: Bermuda
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.:
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,438,094 shares of Common Stock*
(b)	Percent of class: The ownership percentage reported is based on 54,005,984 shares of Common Stock outstanding as of February 26, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the SEC on March 4, 2026.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Item 5 on the cover page(s) hereto.
	(ii) Shared power to vote or to direct the vote: See Item 6 on the cover page(s) hereto.
	(iii) Sole power to dispose or to direct the disposition of: See Item 7 on the cover page(s) hereto.
	(iv) Shared power to dispose or to direct the disposition of: See Item 8 on the cover page(s) hereto.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

KCK LTD.

Signature:	/s/ Raphael Metz
Name/Title:	Secretary
Date:	04/08/2026

Nael Karim Kassar

Signature:	/s/ Nael Karim Kassar
Name/Title:	Founder and Chief Executive Officer
Date:	04/08/2026

FAQ

What stake does KCK Ltd. hold in Sight Sciences (SGHT)?

KCK Ltd. beneficially owns 1,438,094 shares (2.7%). This percentage uses 54,005,984 shares outstanding as of February 26, 2026 reported in the issuer's Form 10-K.

Does the Schedule 13G/A filing indicate voting control by KCK Ltd.?

The filing reports shared voting and dispositive power, not sole control. It shows zero sole voting/dispositive power and shared power of 1,438,094 shares, per the cover page entries.

Is this a passive or active disclosure for SGHT?

This Schedule 13G/A amendment reflects a passive investor disclosure. Holdings are below 5% and the filing is an amendment to a 13G, typically used by passive holders.

What outstanding share count was used to calculate the 2.7%?

The percentage is based on 54,005,984 shares outstanding as of February 26, 2026. That figure comes from Sight Sciences' Annual Report on Form 10-K filed March 4, 2026.

Who signed the Schedule 13G/A amendment for SGHT?

The amendment is signed by Raphael Metz (Secretary) and Nael Karim Kassar (Founder and CEO). Signatures are dated April 8, 2026 on the filing excerpt.