SEC Filing Document

Company: BIOVENTRIX, INC.
Ticker: 
CIK: 1283259
Filing Type: S-1
Document Type: EX-10.9
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/ex10-9.htm

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13(d)(3) of the Exchange Act), or group of persons, becomes the beneficial owner (as defined in Rules 13d-3 and 13d-5 of the Exchange Act) of a majority of total voting power of the voting stock of the Company. The undersigned also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the undersigned’s Lock-Up Securities except in compliance with this lock-up agreement. The undersigned agrees that, prior to engaging in any transaction or taking any other action that is subject to the terms of this lock-up agreement during the period from the date hereof to and including the expiration of the Lock-Up Period, the undersigned will give notice thereof to the Company and will not consummate any such transaction or take any such action unless it has received written confirmation from the Company that the Lock-Up Period has expired.

the undersigned is an officer or director of the Company, the undersigned hereby acknowledges that (i) the foregoing restrictions shall
be equally applicable to any issuer-directed or “friends and family” Lock-Up Securities that the undersigned may purchase
in the Public Offering; (ii) the Representative agrees that, at least three (3) business days before the effective date of any release
or waiver of the foregoing restrictions in connection with a transfer of Lock-Up Securities, the Representative will notify the Company
of the impending release or waiver; and (iii) the Company has agreed in the Underwriting Agreement to announce the impending release
or waiver by press release through a major news service at least two (2) business days before the effective date of the release or waiver.
Any release or waiver granted by the Representative hereunder to any such officer or director shall only be effective two (2) business
days after the publication date of such press release. The provisions set forth in (ii) and (iii) of this paragraph will not apply if
(a) the release or waiver is effected solely to permit a transfer of Lock-Up Securities not for consideration and (b) the transferee
has agreed in writing to be bound by the same terms described in this lock-up agreement to the extent and for the duration that such
terms remain in effect at the time of such transfer.

The
undersigned understands that the Company and the Representative are relying upon this lock-up agreement in proceeding toward consummation
of the Public Offering. The undersigned further understands that this lock-up agreement is irrevocable and shall be binding upon the
undersigned’s heirs, legal representatives, successors and assigns.

The
undersigned understands that, if the Underwriting Agreement is not executed by [—] [—], 2026, or if the Underwriting Agreement
(other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the
shares of Common Stock to be sold thereunder, then this lock-up agreement shall be void and of no further force or effect.

Whether
or not the Public Offering actually occurs depends on a number of factors, including market conditions. Any Public Offering will only
be made pursuant to an Underwriting Agreement, the terms of which are subject to negotiation between the Company and the Representative.

The
undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this lock-up agreement and
that this lock-up agreement has been duly authorized (if the undersigned is not a natural person), executed and delivered by the undersigned
and is a valid and binding agreement of the undersigned.

Electronic
signatures complying with the New York Electronic Signatures and Records Act (N.Y. State Tech. §§ 301-309), as amended from
time to time, or other applicable law will be deemed original signatures for purposes of this lock-up agreement. Transmission by telecopy,
electronic mail or other transmission method of an executed counterpart of this lock-up agreement will constitute due and sufficient
delivery of such counterpart.

This
lock-up agreement shall be governed by, and construed in accordance with, the laws of the State of New York.

Very
truly yours,

(Name
- Please Print)

(Signature)

(Name
of Signatory, in the case of entities - Please Print)

(Title
of Signatory, in the case of entities - Please Print)

Address:

[SIGNATURE
PAGE TO BIOVENTRIX, INC. LOCK-UP AGREEMENT]