Reviva Pharmaceuticals Holdings, Inc. is the subject of a Schedule 13G/A reporting that CVI Investments, Inc. and Heights Capital Management, Inc. collectively hold 672,811 shares of common stock, representing 4.9% of the class. The filing states these shares "consist of Shares issuable upon the exercise of warrants" and that the warrants are restricted so exercises cannot cause ownership to exceed 4.99%. The company reported 12,810,377 Shares outstanding as of March 27, 2026. The filing is signed on 05/13/2026.
Positive
None.
Negative
None.
Insights
Reporting shows a sub-5% position held via warrants and shared voting control.
The filing lists 672,811 shares as beneficially owned, equal to 4.9% of the outstanding common stock (March 27, 2026 outstanding: 12,810,377 shares). The filing explicitly states these holdings "consist of Shares issuable upon the exercise of warrants," and that exercises are limited to prevent exceeding 4.99%.
Heights Capital Management, Inc. is disclosed as an investment manager with shared voting and dispositive power over the reported shares; the text also contains a disclaimer of beneficial ownership except for pecuniary interest. Future filings would show any changes in exercised warrants or voting arrangements.
Position is an issuer-side disclosure of potential overhang but stays below the 5% reporting threshold.
The filing clarifies the shares reported arise from warrants and that the warrants contain an ownership cap tied to 4.99%, limiting immediate dilution risk captured here. The document ties the position scale to the exact outstanding share count as of March 27, 2026.
As a factual matter, cash‑flow treatment or planned exercises are not stated. Subsequent amendments or Form 4/Form 5 filings would record any actual exercises or transfers.
Key Figures
Reported shares beneficially owned:672,811 sharesPercent of class:4.9%Shares outstanding:12,810,377 shares+2 more
5 metrics
Reported shares beneficially owned672,811 sharesReported beneficial ownership by CVI Investments/Heights Capital
Percent of class4.9%Percentage of common stock beneficially owned
Shares outstanding12,810,377 sharesShares outstanding as of <date>March 27, 2026</date>
Signature date05/13/2026Date the Schedule 13G/A was signed
Beneficial ownership cap4.99%Warrants not exercisable to the extent exercises would exceed 4.99%
Key Terms
beneficially owned, warrants, Section 13(d)
3 terms
beneficially ownedregulatory
"The number of Shares reported as beneficially owned consists of Shares issuable upon the exercise of warrants"
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.
warrantsfinancial
"The number of Shares reported as beneficially owned consists of Shares issuable upon the exercise of warrants to purchase Shares"
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
Section 13(d)regulatory
"would be aggregated with such Reporting Person for purposes of Section 13(d) of the Securities Exchange Act"
What stake do CVI Investments and Heights Capital report in Reviva (RVPH)?
They report beneficial ownership of 672,811 shares, representing 4.9% of common stock. The filing states these shares "consist of Shares issuable upon the exercise of warrants," with an exercise cap to prevent exceeding 4.99%.
Are the reported RVPH shares already outstanding or linked to warrants?
The filing specifies the reported 672,811 shares "consist of Shares issuable upon the exercise of warrants." It therefore treats the position as issuable upon exercise rather than solely held common stock.
What is the total RVPH share count used in the filing?
The filing references 12,810,377 Shares outstanding as of March 27, 2026. That outstanding figure is the base used to calculate the reported 4.9% ownership percentage.
Who signs the Schedule 13G/A on behalf of the reporting entities for RVPH?
The filing is signed by Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc., dated 05/13/2026. It also notes Heights Capital serves as authorized agent for CVI Investments under a previously filed Limited Power of Attorney.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
Reviva Pharmaceuticals Holdings, Inc.
(Name of Issuer)
Common Stock, $0.0001 par value per share
(Title of Class of Securities)
76152G209
(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):
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
672,811.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
672,811.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
672,811.00
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)
4.9 %
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
672,811.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
672,811.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
672,811.00
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)
4.9 %
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 No.:
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 number of Shares reported as beneficially owned consists of Shares issuable upon the exercise of warrants to purchase Shares (the "Warrants"). The Warrants are not exercisable to the extent that the total number of Shares then beneficially owned by a Reporting Person and its affiliates and any other persons whose beneficial ownership of Shares would be aggregated with such Reporting Person for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, would exceed 4.99%.
The Company's Annual Report on Form 10-K, filed on March 30, 2026, indicates there were 12,810,377 Shares outstanding as of March 27, 2026
(b)
Percent of class:
4.9 %
(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.
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:
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:
05/13/2026
Heights Capital Management, Inc.
Signature:
/s/ Sarah Travis
Name/Title:
Sarah Travis, Assistant General Counsel and Assistant Secretary
Date:
05/13/2026
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 was previously filed.
Exhibit Information
EXHIBIT INDEX
EXHIBIT DESCRIPTION
24 Limited Power of Attorney*
99 Joint Filing Agreement*
* Previously filed
