CG Oncology: RTW Reports 8.3% Stake (6.98M shares)

CG Oncology, Inc. Schedule 13G discloses that RTW Investments, LP and Roderick Wong report shared beneficial ownership of 6,984,808 shares of Common Stock, representing 8.3% of the class based on 84,435,200 shares outstanding as of February 25, 2026.

Rhea-AI Filing Summary

CG Oncology, Inc. Schedule 13G discloses that RTW Investments, LP and Roderick Wong report shared beneficial ownership of 6,984,808 shares of Common Stock, representing 8.3% of the class based on 84,435,200 shares outstanding as of February 25, 2026.

The filing states the RTW Funds have the right to receive dividends or sale proceeds on these shares. The Reporting Persons report no sole voting or dispositive power; all voting and dispositive power is shared.

Insights

Institutional Ownership Analyst

8.3% position by RTW Funds via shared holdings signals a meaningful institutional stake.

The filing shows 6,984,808 shares held with shared voting and dispositive power, based on 84,435,200 shares outstanding as of February 25, 2026. This is a standard passive reporting format under a Schedule 13G when ownership exceeds 5%.

Key dependencies include whether the position remains passive; any later amendment or Form 13D would change the public signal. Subsequent disclosures would state changes in voting or disposition arrangements.

Corporate Governance Expert

Shared voting/dispositive power indicates RTW exerts influence through pooled fund arrangements.

The statement clarifies the RTW Funds "have the right to receive or the power to direct the receipt of dividends" for the reported shares. Reporting also specifies zero sole voting or dispositive power, consistent with collective fund control rather than individual control by Dr. Wong.

Governance implications hinge on whether RTW participates in board engagement or remains a passive holder; any activist or coordinated actions would be disclosed in future filings.

Key Figures

Shares beneficially owned: 6,984,808 shares Percent of class: 8.3% Shares outstanding: 84,435,200 shares +2 more

5 metrics

Shares beneficially owned 6,984,808 shares reported holdings by RTW Investments and Roderick Wong

Percent of class 8.3% ownership percentage based on outstanding shares

Shares outstanding 84,435,200 shares as of <date>February 25, 2026</date>

CUSIP 156944100 CG Oncology Common Stock CUSIP

Filing signature date 05/15/2026 Schedule 13G signature date by Roderick Wong, M.D.

Key Terms

Schedule 13G, Shared Dispositive Power, Beneficially owned

3 terms

Schedule 13G regulatory

"Item 2. | (a) | Name of person filing: This statement is filed by"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Shared Dispositive Power financial

"6 | Shared Dispositive Power 6,984,808.00"

Beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned:"

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does RTW Investments report in CG Oncology (CGON)?

RTW Investments and Roderick Wong report shared beneficial ownership of 6,984,808 shares, equal to 8.3% of the class, based on 84,435,200 shares outstanding as of February 25, 2026.

Does RTW or Dr. Wong have sole voting or dispositive power over CGON shares?

No. The filing states both RTW Investments and Dr. Wong have 0 sole voting and 0 sole dispositive power; they report shared voting and dispositive power for 6,984,808 shares.

What rights to dividends or sale proceeds are reported by RTW Funds for CGON?

The Schedule 13G states the RTW Funds "have the right to receive or the power to direct the receipt of dividends" or proceeds from sale of the reported shares, as disclosed in Item 6 of the filing.

On what basis was the 8.3% ownership percentage calculated?

The percentage is calculated using 84,435,200 shares outstanding as of February 25, 2026, a figure cited from the company's Annual Report on Form 10-K filed February 27, 2026.

When was the Schedule 13G for CGON signed and filed?

The filing is signed by Roderick Wong, M.D. with the signature date of 05/15/2026, as shown on the signature block of the submitted Schedule 13G.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/15/2026 - 08:16 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

CG ONCOLOGY, INC.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

156944100

(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): 156944100

1

Names of Reporting Persons

RTW Investments, LP

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 6,984,808.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,984,808.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,984,808.00

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)

8.3 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): 156944100

1

Names of Reporting Persons

Roderick Wong

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 6,984,808.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,984,808.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,984,808.00

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)

8.3 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: CG ONCOLOGY, INC.
(b)	Address of issuer's principal executive offices: 400 Spectrum Center Drive, Suite 2040, Irvine, CA, 92618.
Item 2.
(a)	Name of person filing: This statement is filed by: (i) RTW Investments, LP ("RTW Investments"), a Delaware limited partnership and the investment adviser to certain funds (the "RTW Funds"), with respect to shares of Common Stock, par value $0.0001 per share (the "Shares") of CG Oncology, Inc. (the "Company") directly held by the RTW Funds; and (ii) Roderick Wong, M.D. ("Dr. Wong"), the Managing Partner and Chief Investment Officer of RTW Investments, with respect to the Shares directly held by the RTW Funds. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons." The filing of this statement should not be construed as an admission that any of the foregoing persons or any Reporting Person is, for the purposes of Section 13 of the Securities Exchange Act of 1934, as amended, the beneficial owner of the Shares reported herein.
(b)	Address or principal business office or, if none, residence: The address of the business office of each of the Reporting Persons is 40 10th Avenue, Floor 7, New York, New York 10014.
(c)	Citizenship: RTW Investments is a Delaware limited partnership. Dr. Wong is a citizen of the United States.
(d)	Title of class of securities: Common Stock, $0.0001 par value
(e)	CUSIP Number(s): 156944100
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: The information required by Item 4(a) is set forth in Rows 5 - 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The percentages set forth in Row 11 of the cover pages are calculated based upon 84,435,200 Shares outstanding as of February 25, 2026 as reported in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 27, 2026.
(b)	Percent of class: RTW Investments: 8.3% Dr. Wong: 8.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: RTW Investments: 0 Dr. Wong: 0
	(ii) Shared power to vote or to direct the vote: RTW Investments: 6,984,808 Shares Dr. Wong: 6,984,808 Shares
	(iii) Sole power to dispose or to direct the disposition of: RTW Investments: 0 Dr. Wong: 0
	(iv) Shared power to dispose or to direct the disposition of: RTW Investments: 6,984,808 Shares Dr. Wong: 6,984,808 Shares
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. See Item 2. The RTW Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Shares reported herein.
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:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

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.

RTW Investments, LP

Signature:	/s/ Roderick Wong, M.D.
Name/Title:	Roderick Wong, M.D., Managing Partner
Date:	05/15/2026

Roderick Wong

Signature:	s/ Roderick Wong, M.D.
Name/Title:	Roderick Wong, M.D.
Date:	05/15/2026

Exhibit Information

Exhibit 99.1 Joint Filing Agreement