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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Exhibit 10.9

Form
of Lock-Up Agreement

The
Benchmark Company, LLC

E. 58th Street, 17th Floor

New
York, NY 10155

Representative of the several underwriters named on Schedule 1 to the Underwriting Agreement referenced below (the “Underwriters”).

Ladies
and Gentlemen:

The
undersigned understands that The Benchmark Company, LLC (the “Representative”), proposes to enter into an Underwriting
Agreement (the “Underwriting Agreement”) with BioVentrix, Inc., a Delaware corporation (collectively with its subsidiaries
and affiliates the “Company”), providing for the initial public offering (the “Public Offering”)
of shares of the Company’s common stock, $0.0001 par value per share (the “Common Stock”).

induce the Representative to continue its efforts in connection with the Public Offering, the undersigned hereby agrees that, without
the prior written consent of the Representative, the undersigned will not, during the period commencing on the date hereof and ending
on the date which is 180 days after the closing date of the Public Offering (the “Lock-Up Period”), (1) offer, pledge,
sell, contract to sell, grant, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock or any securities
convertible into or exercisable or exchangeable for shares of Common Stock, whether now owned or hereafter acquired by the undersigned
or with respect to which the undersigned has or hereafter acquires the power of disposition (collectively, the “Lock-Up Securities”);
(2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership
of the Lock-Up Securities, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Lock-Up
Securities, in cash or otherwise; (3) make any demand for or exercise any right with respect to the registration of any Lock-Up Securities;
or (4) publicly disclose the intention to make any offer, sale, pledge or disposition, or to enter into any transaction, swap, hedge
or other arrangement relating to any Lock-Up Securities.

Notwithstanding
the foregoing, and subject to the conditions below, the undersigned may transfer Lock-Up Securities without the prior written consent
of the Representative in connection with (a) transactions relating to Lock-Up Securities acquired in open market transactions after the
completion of the Public Offering; provided that no filing under Section 13 or Section 16(a) of the Securities Exchange Act of
1934, as amended (the “Exchange Act”), or other public announcement shall be required or shall be voluntarily made
during the Lock-Up Period in connection with subsequent sales of Lock-Up Securities acquired in such open market transactions; (b) transfers
of Lock-Up Securities as a bona fide gift, by will or intestacy or to a family member or trust for the benefit of the undersigned
or a family member (for purposes of this lock-up agreement, “family member” means any relationship by blood, marriage or
adoption, not more remote than first cousin); (c) transfers of Lock-Up Securities to a charity or educational institution; (d) if the
undersigned is a corporation, partnership, limited liability company or other business entity, (i) any transfers of Lock-Up Securities
to another corporation, partnership or other business entity that controls, is controlled by or is under common control with the undersigned
or (ii) distributions of Lock-Up Securities to members, partners, stockholders, subsidiaries or affiliates (as defined in Rule 405 promulgated
under the Securities Act of 1933, as amended) of the undersigned; (e) if the undersigned is a trust, to a trustee or beneficiary of the
trust; provided that in the case of any transfer pursuant to the foregoing clauses (b), (c) (d) or (e), (i) any such transfer
shall not involve a disposition for value, (ii) each transferee shall sign and deliver to the Representative a lock-up agreement substantially
in the form of this lock-up agreement and (iii) no filing under Section 13 or Section 16(a) of the Exchange Act or other public announcement
shall be required or shall be voluntarily made; (f) the receipt by the undersigned from the Company of shares of Common Stock upon the
vesting of restricted stock awards or stock units or upon the exercise of options to purchase shares of Common Stock issued under an
equity compensation or incentive plan of the Company or an employment or consulting arrangement (the “Plan Shares”);
provided, that the Plan Shares shall be subject to the terms of this lock-up agreement; (g) the transfer of shares of Common Stock
or any securities convertible into shares of Common Stock to the Company upon a vesting event of the Company’s securities or upon
the exercise of options to purchase the Company’s securities, in each case on a “cashless” or “net exercise”
basis or to cover tax obligations of the undersigned in connection with such vesting or exercise, but only to the extent such right expires
during the Lock-Up Period; provided that no filing under Section 13 or Section 16(a) of the Exchange Act or other public announcement
shall be required or shall be voluntarily made during the Lock-Up Period; (h) the transfer of Lock-Up Securities pursuant to agreements
described in the Pricing Prospectus under which the Company has the option to repurchase such securities or a right of first refusal
with respect to the transfer of such securities, provided that if the undersigned is required to file a report under Section 13
or Section 16(a) of the Exchange Act reporting a reduction in beneficial ownership of Common Stock during the Lock-Up Period, the undersigned
shall include a statement in such schedule or report describing the purpose of the transaction; (i) the establishment of a trading plan
pursuant to Rule 10b5-1 under the Exchange Act for the transfer of Lock-Up Securities; provided that (1) such plan does not provide
for the transfer of Lock-Up Securities during the Lock-Up Period and (2) to the extent a public announcement or filing under the Exchange
Act, if any, is required of or voluntarily made by or on behalf of the undersigned or the Company regarding the establishment of such
plan, such public announcement or filing shall include a statement to the effect that no transfer of Lock-Up Securities may be made under
such plan during the Lock-Up Period; (j) the conversion of the outstanding preferred stock and convertible notes of the Company into
shares of Common Stock as described in the Pricing Prospectus; provided that such shares of Common Stock shall be subject to the
terms of this agreement; (k) the transfer of Lock-Up Securities that occurs by operation of law, such as pursuant to a qualified domestic
order or in connection with a divorce settlement, provided that the transferee agrees to sign and deliver a lock-up agreement
substantially in the form of this lock-up agreement for the balance of the Lock-Up Period, and provided further, that any filing
under Section 13 or Section 16(a) of the Exchange Act that is required to be made during the Lock-Up Period as a result of such transfer
shall include a statement that such transfer has occurred by operation of law; and (l) the transfer of Lock-Up Securities pursuant to
a bona fide third party tender offer, merger, consolidation or other similar transaction made to all holders of the Common Stock involving
a change of control (as defined below) of the Company after the closing of the Public Offering and approved by the Company’s board
of directors; provided that in the event that the tender offer, merger, consolidation or other such transaction is not completed,
the Lock-Up Securities owned by the undersigned shall remain subject to the restrictions contained in this lock-up agreement. For purposes
of clause (l) above, “change of control” shall mean the consummation of any bona fide third party tender offer, merger, amalgamation,
consolidation or other similar transaction the result of which is that any “person” (as defined in Section 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.