SEC Filing Document

Company: BIOVENTRIX, INC.
Ticker: 
CIK: 1283259
Filing Type: S-1
Document Type: EX-3.9
Date Filed: 2026-02-12
Accession Number: 0001493152-26-006407
Exchange: 
SIC Code: 3841
SIC Description: Surgical & Medical Instruments & Apparatus
URL: https://www.sec.gov/Archives/edgar/data/1283259/000149315226006407/ex3-9.htm

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Exhibit

CERTIFICATE
OF SECOND AMENDMENT OF

CERTIFICATE
OF DESIGNATIONS OF

THE
RIGHTS, PREFERENCES AND PRIVILEGES OF THE

SERIES
A-1 PREFERRED STOCK OF BIOVENTRIX, INC.

Pursuant
to Sections 103 and 151 of

The
General Corporation Law of the State of Delaware

Bioventrix,
Inc. (the “Corporation”), a corporation organized and existing under the laws of the State of Delaware,
DOES HEREBY CERTIFY:

FIRST:
The Corporation’s Third Amended and Restated Certificate of Incorporation (the “Restated Certificate”)
was filed with the Secretary of State of Delaware on March 29, 2023 which was amended by (i) the First Amendment to the Third Amended
and Restated Certificate of Incorporation that was filed with the Secretary of State of Delaware on January 16, 2024, (ii) the Second
Amendment to the Third Amended and Restated Certificate of Incorporation that was filed with the Secretary of State of Delaware on August
14, 2024, and (iii) ) the Third Amendment to the Third Amended and Restated Certificate of Incorporation that was filed with the Secretary
of State of Delaware on August 1, 2025. A Certificate of Designations of the Rights, Preferences and Privileges of the Series A-1 Preferred
Stock of the Corporation (the “Certificate of Designations of Series A-1 Preferred Stock”) was filed
with the Secretary of State of Delaware on October 3, 2024 which was amended by the Certificate of First Amendment of Certificate of
Designations of the Rights, Preferences and Privileges of the Series A-1 Preferred Stock. No shares of Series A-1 Preferred Stock have
been issued by the Corporation under the Restated Certificate, as amended, or under the Certificate of Designations of Series A-1 Preferred
Stock.

SECOND:
The Board of Directors of the Corporation (the “Board”) unanimously approved at a Board meeting on September
24, 2025 a resolution adopting this Certificate of Second Amendment of the Certificate of Designations of the Series A-1 Preferred
Stock (this “Second Amendment of the Certificate of Designations of the Series A-1 Preferred Stock”)
as follows:

RESOLVED,
that the Certificate of Designations of the Series A-1 Preferred Stock of the Corporation be amended by increasing the amount of authorized
shares designated as Series A-1 Preferred Stock from 3,500,000 shares to 5,500,000 shares from the Corporation’s authorized
Blank Check Preferred Stock, with all the same powers, preferences, privileges and rights and the qualifications, limitations and restrictions
as filed in the Certificate of Designations of the Series A-1 Preferred Stock.

THIRD:
In accordance with, and pursuant to, Section 103 and 151 of the DGCL, the Board has deemed it in the best interests of the Corporation
and has authorized and directed the officers of the Corporation to file with the Delaware Secretary of State this Second Amendment of
the Certificate of Designations of the Series A-1 Preferred Stock.

WITNESS WHEREOF, the Corporation has caused this Second Amendment of the Certificate of Designations of the Series A-1 Preferred
Stock to be signed by David Richmond, its Co-CEO, a duly authorized officer of the Corporation,
on September 25, 2025.

/s/ David Richmond

David
Richmond, Co-CEO

Certificate of Second Amendment of Certificate of Designations of the Rights, Preferences and Privileges of the Series A- 1 Preferred Stock