Reviva Pharmaceuticals: 5.2% Stake Disclosed by CVI/Heights

Reviva Pharmaceuticals Holdings, Inc. Schedule 13G reports that CVI Investments, Inc. and Heights Capital Management, Inc. together beneficially hold 666,667 shares of common stock, representing 5.2% of the class.

Rhea-AI Filing Summary

Reviva Pharmaceuticals Holdings, Inc. Schedule 13G reports that CVI Investments, Inc. and Heights Capital Management, Inc. together beneficially hold 666,667 shares of common stock, representing 5.2% of the class. The filing states there were 12,727,044 Shares outstanding as of the completion of the offering per the Prospectus Supplement dated March 19, 2026. Heights Capital Management, Inc. is disclosed as investment manager to CVI Investments, Inc. and "may exercise voting and dispositive power" over the shares; the Reporting Persons disclaim beneficial ownership except for their pecuniary interest. The filing is signed by Sarah Travis on March 25, 2026.

Insights

Investment Governance Analyst

Large passive stake disclosed; manager-controlled voting noted.

The filing documents a 5.2% ownership position represented by 666,667 shares with an explicit as of outstanding count of 12,727,044 Shares from the prospectus supplement dated March 19, 2026. That ownership level commonly requires public disclosure but does not itself trigger change-of-control presumptions.

Because Heights Capital Management, Inc. "may exercise voting and dispositive power" as investment manager, governance attention should focus on whether voting aligns with other holders. Subsequent filings would show any voting blocs or Schedule 13D changes.

Securities Compliance Counsel

Filing follows passive investor disclosure norms with manager agency language.

The Schedule 13G identifies the reporting persons, their addresses, and certifies ownership and voting/dispositive splits as shown on the cover rows. It includes a Limited Power of Attorney (Exhibit 24) and a Joint Filing Agreement (Exhibit 99), supporting joint reporting mechanics.

Disclosure that the Reporting Persons "disclaim any beneficial ownership" except pecuniary interest is a standard legal qualification; monitoring future amendments is the practical step to detect any change to active status or increases above passive thresholds.

FAQ

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

What stake does CVI Investments hold in Reviva Pharmaceuticals (RVPH)?

CVI Investments beneficially holds 666,667 shares, representing 5.2% of the class. The filing ties this to the cover page rows and joint reporting by CVI and Heights Capital Management.

How many Reviva shares were outstanding for the ownership calculation?

The Prospectus Supplement dated March 19, 2026 reports 12,727,044 Shares outstanding as of the completion of the offering, which the filing cites for its percentage calculation.

Does Heights Capital Management control the voting of these shares?

Heights Capital Management, Inc. is disclosed as the investment manager to CVI Investments and "may exercise voting and dispositive power" over the reported shares, per the cover-page comments and Item 4 disclosures.

Do the Reporting Persons claim beneficial ownership of the shares?

Each Reporting Person "disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein," a qualification included in Item 4 and the cover-page comments.

Who signed the Schedule 13G for these reporting persons?

The filing is signed by Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc., on March 25, 2026, with a joint filing agreement and a Limited Power of Attorney attached as exhibits.

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

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Accepted by SEC EDGAR 03/25/2026 - 02:28 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Reviva Pharmaceuticals Holdings, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

76152G209

(CUSIP Number)

03/18/2026

(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): 76152G209

1

Names of Reporting Persons

CVI Investments, Inc.

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 666,667.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 666,667.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

666,667.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: With respect to Row 6 and Row 8 above, Heights Capital Management, Inc. is the investment manager to CVI Investments, Inc. and as such may exercise voting and dispositive power over the shares reported as beneficially owned by CVI Investments, Inc. herein.

SCHEDULE 13G

CUSIP Number(s): 76152G209

1

Names of Reporting Persons

Heights Capital Management, Inc.

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 666,667.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 666,667.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

666,667.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: With respect to Row 6 and Row 8 above, Heights Capital Management, Inc. is the investment manager to CVI Investments, Inc. and as such may exercise voting and dispositive power over the shares reported as beneficially owned by CVI Investments, Inc. herein.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Reviva Pharmaceuticals Holdings, Inc.
(b)	Address of issuer's principal executive offices: 10080 N Wolfe Road, Suite SW3-200, Cupertino, CA 95014
Item 2.
(a)	Name of person filing: This statement is filed by the entities listed below, who are collectively referred to herein as "Reporting Persons," with respect to the shares of common stock of Reviva Pharmaceuticals Holdings, Inc. (the "Company"), $0.0001 par value per share (the "Shares"). (i) CVI Investments, Inc. (ii) Heights Capital Management, Inc.
(b)	Address or principal business office or, if none, residence: The address of the principal business office of CVI Investments, Inc. is: P.O. Box 309GT Ugland House South Church Street George Town Grand Cayman KY1-1104 Cayman Islands The address of the principal business office of Heights Capital Management, Inc. is: 101 California Street, Suite 3250 San Francisco, California 94111
(c)	Citizenship: Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
(d)	Title of class of securities: Common Stock, $0.0001 par value per share
(e)	CUSIP Number(s): 76152G209
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 this Item 4(a) is set forth in Row 9 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. The Company's Prospectus Supplement (to Prospectus dated February 13, 2024, Registration No. 333-276848), filed on March 19, 2026, indicates there were 12,727,044 Shares outstanding (excluding Shares underlying warrants issued at the same time) as of the completion of the offering of the Shares referred to therein.
(b)	Percent of class: 5.2 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by this Item 4(c)(i) is set forth in Row 5 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(ii) Shared power to vote or to direct the vote: The information required by this Item 4(c)(ii) is set forth in Row 6 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. Heights Capital Management, Inc., which serves as the investment manager to CVI Investments, Inc., may be deemed to be the beneficial owner of all Shares owned by CVI Investments, Inc. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.
	(iii) Sole power to dispose or to direct the disposition of: The information required by this Item 4(c)(iii) is set forth in Row 7 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: The information required by this Item 4(c)(iv) is set forth in Row 8 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. Heights Capital Management, Inc., which serves as the investment manager to CVI Investments, Inc., may be deemed to be the beneficial owner of all Shares owned by CVI Investments, Inc. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.
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.
	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:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

CVI Investments, Inc.

Signature:	/s/ Sarah Travis
Name/Title:	Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc.
Date:	03/25/2026

Heights Capital Management, Inc.

Signature:	/s/ Sarah Travis
Name/Title:	Sarah Travis, Assistant General Counsel and Assistant Secretary
Date:	03/25/2026

Comments accompanying signature: Heights Capital Management, Inc. serves as authorized agent of CVI Investments, Inc. pursuant to a Limited Power of Attorney, a copy of which is attached as Exhibit 24 hereto.

Exhibit Information

EXHIBIT INDEX EXHIBIT DESCRIPTION ________ ________ 24 Limited Power of Attorney 99 Joint Filing Agreement