Document:

Exhibit 4.3

 

[Form of Rights Certificate]

 

	RIGHTS CERTIFICATE #:	 	NUMBER OF RIGHTS:

 

THE TERMS AND CONDITIONS OF THE RIGHTS
OFFERING ARE SET FORTH IN THE COMPANY’S PROSPECTUS DATED [●], 2021 (THE “PROSPECTUS”) AND ARE INCORPORATED
HEREIN BY REFERENCE. COPIES OF THE PROSPECTUS ARE AVAILABLE UPON REQUEST FROM [●], THE SUBSCRIPTION AGENT

 

ION Geophysical Corporation

Incorporated under the laws of
the State of Delaware

 

NON-TRANSFERABLE
RIGHTS CERTIFICATE

 

Evidencing Non-Transferable Rights
to Purchase (i) 8.00% Senior Secured Second Priority Notes due 2025, (ii) shares of common stock of ION Geophysical Corporation,
or (iii) some combination thereof.

 

Subscription Price: 100% of principal
amount of Notes or $2.57 per whole of common stock

 

THE RIGHTS
WILL EXPIRE IF NOT EXERCISED ON OR BEFORE 5:00 P.M.,

NEW YORK CITY TIME, ON [●], 2021 UNLESS EXTENDED BY THE COMPANY

 

REGISTERED OWNER:

 

THIS CERTIFIES THAT the registered owner whose name
is subscribed herein is the owner of the number of non-transferable rights (“Rights”) set forth above. Each whole Right
entitles the holder thereof to subscribe for and purchase (i) 8.00% Senior Secured Second Priority Notes due 2025 (the “Notes”),
(ii) shares of common stock (the “Common Stock”) of ION Geophysical Corporation, a Delaware corporation (the “Company”),
in minimum denominations and integral multiples of $100 in the case of the Notes or whole shares in the case of Common Stock pursuant
to a rights offering (the “Rights Offering”), on the terms and subject to the conditions set forth in the Prospectus
and the “Instructions for Use of ION Geophysical Corporation Rights Certificates” accompanying this Rights Certificate.
If any of the principal amount of Notes or shares of Common Stock available for purchase in the Rights Offering are not purchased
by other holders of Rights pursuant to the exercise of the basic subscription Right, any rights holder that exercises its basic
subscription Rights in full may purchase additional principal amount of Notes or Common Stock pursuant to the terms and restrictions
of the Rights Offering (the “Over-Subscription Privilege”). The Rights represented by this Rights Certificate may be
exercised by completing Form 1 and any other appropriate forms on the reverse side hereof and by returning the full payment of
the subscription price for the requested principal amount of Notes or shares of Common Stock in accordance with the “Instructions
for Use of ION Geophysical Corporation Rights Certificates” that accompany this Rights Certificate.

 

This Rights Certificate is not valid unless countersigned
by the Subscription Agent and registered by the registrar.

 

ION GEOPHYSICAL CORPORATION

 

Dated [•], 2021

 

	
        /s/ Christopher
        Usher
	 	
        /s/ Mike
        Morrison

	President and Chief Executive Officer	 	Executive Vice President and Chief Financial Officer

 

     

     

    

 

DELIVERY OPTIONS FOR RIGHTS CERTIFICATE

 

Delivery other than in the manner
or to the address listed below will not constitute valid delivery.

 

If delivering by mail,
hand or overnight courier

[●]

Attn: [●]

[Address]

 

PLEASE PRINT
ALL INFORMATION CLEARLY AND LEGIBLY.

 

FORM 1-EXERCISE OF RIGHTS

 

To subscribe for Notes or Common Stock pursuant to your basic
subscription Right, please complete lines (a) and (c) and sign under Form 3 below. To subscribe for the Over-Subscription Privilege,
please complete lines (b) and (c) below. To the extent you subscribe for a greater principal amount of Notes or shares of Common
Stock than you are entitled under the basic subscription Right or Over-Subscription Privilege, you will be deemed to have elected
to purchase the maximum principal amount of Notes or shares of Common Stock for which you are entitled to subscribe under the Right
or Over-Subscription Privilege, if applicable.

 

(a) EXERCISE OF BASIC SUBSCRIPTION RIGHT:

 

I subscribe for ____ principal amount of Notes = $______ (amount
enclosed).

 

I subscribe for ____ shares of Common Stock = $______ (amount
enclosed).

 

(b) EXERCISE OF OVER-SUBSCRIPTION PRIVILEGE

 

If you exercised your basic subscription Right in full and wish
to purchase additional principal amount of Notes or shares of Common Stock pursuant to your Over-Subscription Privilege:

 

I subscribe for ____ additional principal amount of Notes =
$______ (amount enclosed).

 

I subscribe for ____ additional shares of Common Stock = $______
(amount enclosed).

 

(c) Total Amount of Payment Enclosed = $ ______

 

METHOD OF PAYMENT (CHECK ONE)

 

		 ̈	Check or bank draft payable to “[●], as Subscription Agent”

 

		 ̈	Wire transfer of immediately
available funds directly to the account maintained by [●], as Subscription Agent for purposes of accepting subscriptions
in this Rights Offering[●], with reference to the rights holder’s name.

 

 

FORM 2 - DELIVERY TO DIFFERENT ADDRESS

 

If you wish for the Notes or Common Stock underlying your rights
to be delivered to an address different from that shown on the face of this Rights Certificate, please enter the alternate address
below, sign under Form 3 and have your signature guaranteed under Form 4.

 

FORM 3-SIGNATURE

 

TO SUBSCRIBE: I acknowledge that I have received the Prospectus
for this Rights Offering and I hereby irrevocably subscribe for the principal amount of Notes or shares of Common Stock indicated
above on the terms and conditions specified in the Prospectus.

 

Signature(s):

 

IMPORTANT: The signature(s) must correspond with the name(s)
as printed on the reverse of this Rights Certificate in every particular, without alteration or enlargement, or any other change
whatsoever.

 

FORM 4-SIGNATURE GUARANTEE

 

This form must be completed if you have completed any portion
of Form 2 or if you otherwise elect to proceed under the Guaranteed Signature procedures.

 

	Signature
    Guaranteed:	                                      
	 	Name
    of Bank or Firm)

 

	By: 	                                                                                                                     
	 	Signature
    of Officer

 

IMPORTANT: The signature(s) should be guaranteed by an eligible
guarantor institution (bank, stock broker, savings & loan association or credit union) with membership in an approved signature
guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15.

 

 

FOR INSTRUCTIONS ON THE USE OF ION GEOPHYSICAL CORPORATION RIGHTS
CERTIFICATES. CONSULT [●], THE SUBSCRIPTION AGENT, AT [●] (toll-free) or [●] (for banks and brokers).Exhibit 4.4

 

Certificate
of designation,

POWERS, PREFERENCES AND RIGHTS

OF

SERIES A PREFERRED STOCK

OF

ION GEOPHYSICAL CORPORATION

 

(Pursuant to Section 151 of the General
Corporation Law of the State of Delaware)

 

Ion Geophysical Corporation,
a Delaware corporation (the “Corporation”), pursuant to the provisions of Section 151 of the General Corporation
Law of the State of Delaware, hereby certifies that, pursuant to the authority expressly vested in the Corporation’s board
of directors (the “Board of Directors”) by the Corporation’s Restated Certificate of Incorporation, as
amended through February 4, 2016 (as may be further amended from time to time, the “Certificate of Incorporation”),
the Board of Directors, by a unanimous vote of the members of the Board of Directors at a meeting held on the [●] day of
[●], 2021, duly approved and adopted the following resolution creating one series of preferred stock. Capitalized terms used
herein and not defined herein shall have the meanings ascribed to such terms in the Indenture, dated as of [●], 2021, by
and between the Corporation, the Guarantors (as defined therein), and UMB Bank, National Association as Trustee (the “Indenture
Trustee”) and Collateral Agent (the “New Second Lien Indenture”).

 

WHEREAS, the Board
of Directors is authorized within the limitations and restrictions stated in the Certificate of Incorporation to provide by resolution
or resolutions for the issuance of up to five million (5,000,000) shares of Preferred Stock, par value $0.01 per share, of the
Corporation, in such series and with such designations, preferences and relative, participating, optional or other special rights
and qualifications, limitations or restrictions as the Board of Directors shall fix by resolution or resolutions providing for
the issuance thereof duly adopted by the Board of Directors;

 

WHEREAS, the Board
of Directors desires, pursuant to such authority, to authorize and fix the terms of a new series of the Corporation’s Preferred
Stock and the number of shares constituting such series; and

 

RESOLVED, that as of
the Effective Date there shall be and hereby is created and authorized one series of authorized preferred stock, par value $0.01
per share, of the Corporation, with the following powers (including voting powers), designations, preferences, and relative, participating,
optional or other rights, and the following qualifications, limitations and restrictions:

 

Section 1.         Designation
of Name and Amount.

 

Such series of preferred
stock shall be designated the “Series A Preferred Stock” and the authorized number of shares constituting the
Series A Preferred Stock shall be one (1), which shall not be subject to increase.

 

     

     

    

 

Section 2.         Rank.

 

The Series A Preferred
Stock shall, upon liquidation, dissolution or winding up of the affairs of the Corporation, voluntarily or involuntarily (a “Liquidation”),
(i) rank senior to the common stock, par value $0.01 per share, of the Corporation (the “Common Stock”)
and each other class or series of Equity Securities authorized and issued in the future that does not by its terms expressly provide
that it ranks pari passu with, or senior to, the Series A Preferred Stock as to Liquidation (all of such Equity Securities
are collectively referred to herein as the “Junior Securities”), (ii) rank pari passu with each
class or series of Equity Securities issued in the future that by its terms ranks pari passu with the Series A Preferred
Stock as to Liquidation (all of such Equity Securities are collectively referred to herein as the “Parity Securities”)
and (iii) rank junior to each class or series of Equity Securities issued in the future that by its terms ranks senior to
the Series A Preferred Stock as to Liquidation (all of such Equity Securities are collectively referred to herein as the “Senior
Securities”). The respective definitions of Parity Securities, Junior Securities and Senior Securities shall also include
any securities, rights or options exercisable or exchangeable for or convertible into any of the Parity Securities, Junior Securities
or Senior Securities, as the case may be. At the time of the issuance of the Series A Preferred Stock, there will be no Senior
Securities outstanding, no Junior Securities outstanding (other than the Common Stock) and no Parity Securities outstanding.

 

Section 3.         Dividends.

 

The Series A Preferred
Stock shall not be entitled to receive any dividends or other distributions from the Corporation.

 

Section 4.         Conversion.

 

The Series A Preferred
Stock shall not be convertible into any other class of equity or other securities of the Corporation.

 

Section 5.         Liquidation
Preference.

 

In the event of a Liquidation,
the Series A Preferred Stock shall be entitled to receive $1.00 (the “Liquidation Preference”) before any
payment or distribution of the assets of the Corporation (whether capital or surplus) shall be made to or set apart for the holders
of Junior Securities.

 

Section 6.         Redemption.

 

The Series A Preferred
Stock may be redeemed by the Corporation (a “Redemption”) upon the exercise of, in the aggregate, 75% or more
of the Notes issued on the Issue Date in accordance with the terms of the New Second Lien Indenture, in exchange for an aggregate
redemption price equal to the Liquidation Preference.

 

Section 7.         Voting
Rights and Power.

 

(a)            Except
as otherwise provided herein or as otherwise required by the DGCL, the Series A Preferred Stock shall have no voting rights.

 

    -2- 

     

    

 

(b)            Notwithstanding
the foregoing:

 

(i)            at
all times when the Common Stock is entitled to vote thereon, the Series A Preferred Stock shall be entitled to vote with the
Common Stock of the Company, voting together as a single class on an “as-converted” basis, with the Series A Preferred
Stock having a number of votes equal to the number of votes that the shares of Common Stock issuable upon the conversion of all
of the Notes in accordance with the terms of the New Second Lien Indenture would be entitled to on any of the following matters:
(x) modifying, amending, supplementing or waiving any provision of the Organizational Documents; and (y) entering into
any merger, consolidation, sale of all or substantially all of the assets of the Company, or other business combination transaction;
and

 

(ii)            Following
the occurrence of a Default or Event of Default under the New Second Lien Indenture, the Series A Preferred Stock shall be
entitled to vote with the Common Stock of the Company on any matters submitted to the holders of Common Stock, voting together
as a single class on an “as-converted” basis, with the Series A Preferred Stock having a number of votes equal
to the number of votes that the shares of Common Stock issuable upon the conversion of all of the Notes in accordance with the
terms of the New Second Lien Indenture would be entitled to on any such matters.

 

(c)            Series A
Directors

 

(i)            The
Series A Holder shall have the exclusive right to elect two of the members of the Board of Directors (such directors are referred
to as “Series A Directors”). If at the time the Series A Holder exercises their right to elect one
or more Series A Directors there are not sufficient vacancies on the Board of Directors to permit such election, the size
of the Board of Directors shall immediately and automatically be increased in order to permit that election. Failure by the Series A
Holder at any time or from time to time to appoint any or all of the Series A Directors which the Series A Holder is
entitled to elect as set forth above shall not act as a waiver of the Series A Holder’s right to elect the Series A
Directors. Each Series A Director shall qualify as an independent director.

 

(ii)           A
Series A Director may only be removed by the Series A Holder. If for any reason a Series A Director shall resign,
be unable to perform his or her duties or otherwise be removed from Board of Directors, then his or her replacement shall be an
individual selected by the Series A Holder who qualifies as an independent director. If for any reason, all Series A
Directors shall have resigned or all simultaneously be unable to perform their respective duties or otherwise be removed from the
Board of Directors, then Series A Director replacements shall be elected by the Series A Holder.

 

Section 8.        Transfer
Restrictions.

 

(a)            The
Series A Holder may at any time Transfer its Series A Preferred Stock to the extent permitted by this Section 8.
Subject to the restrictions on Transfer set forth in this Section 8 or in any other agreement between the Corporation and
the record holder of the Series A Preferred Stock related to the transferability of the Series A Preferred Stock, Series A
Preferred Stock shall be Transferred only on the books and records of the Corporation by the holder in person or by an attorney
upon surrender to the Corporation or its transfer agent or registrar of the certificate, if any, therefor properly endorsed or,
if sought to be Transferred by attorney, accompanied by a written assignment or power of attorney properly executed, with transfer
stamps (if necessary) affixed, and with such proof of the authenticity of signatures as the Corporation or its transfer agent
or registrar may reasonably require.

 

    -3- 

     

    

 

(b)            The
holder of the Series A Preferred Stock shall not be permitted to Transfer any of the Series A Preferred Stock, except
to any Person who replaces or succeeds to the rights and obligations of the Indenture Trustee in accordance with the terms of the
New Second Lien Indenture. Any purported Transfer that, if effective, would result in a violation of the restriction contained
in the immediately preceding sentence shall be void ab initio as to the Transfer of those Shares that would cause such violation,
and the intended Transferee shall acquire no rights in such shares.

 

Section 9.         Certain
Definitions.

 

The following terms
shall have the following respective meanings herein:

 

“Affiliate”
means, with respect to any Person, any other Person that, directly or indirectly through one or more intermediaries, controls,
or is controlled by, or is under common control with, such Person, and the term “control” (including the terms “controlled
by” and “under common control with”) means the possession, directly or indirectly, of the power to direct or
cause the direction of the management and policies of such Person, whether through ownership of voting securities, by contract
or otherwise: provided, that notwithstanding the foregoing, neither the Series A Holder nor its Affiliates (solely
by reason of the Series A Holder being the record owner of the Series A Preferred Stock) nor the holders of the Notes
or any of their respective Affiliates shall be deemed to be Affiliates of the Corporation.

 

“Applicable
Law” means any federal state, local or foreign law, statute, code, ordinance, rule or regulation (including rules and
regulations of self-regulatory organizations).

 

“Board of
Directors” has the meaning assigned to it in the introductory paragraph.

 

“Business
Day” means any day that is not a Saturday or Sunday or a day on which banking institutions in New York City are authorized
or required by Applicable Law or regulation to be closed.

 

“By-Laws”
means the Bylaws of the Corporation adopted by the Corporation on September 21, 2007, as may be amended, modified or supplemented
from time to time.

 

“Certificate
of Designation” means this certificate of the designations, powers, preferences and rights of the Series A Preferred
Stock.

 

“Certificate
of Incorporation” has the meaning assigned to it in the introductory paragraph.

 

“Common Stock”
has the meaning assigned to it in Section 2 hereof.

 

    -4- 

     

    

 

“Corporation”
has the meaning assigned to it in the introductory paragraph.

 

“DGCL”
means the Delaware General Corporation Law.

 

“Effective
Date” shall mean the date of the New Second Lien Indenture.

 

“Equity Securities”
means all of the Corporation’s capital stock and any other equity interest of the Company except for the Series A Preferred
Stock.

 

“Governmental
Authority” means the government of the United States or any other nation, or of any political subdivision thereof, whether
state or local, and any agency, authority, instrumentality, regulatory body, court or arbitrator, central bank or other entity
exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to government
(including any supra national bodies such as the European Union or the European Central Bank and whether public or private).

 

“Junior Securities”
has the meaning assigned to it in Section 2 hereof.

 

“Liquidation”
has the meaning assigned to it in Section 2 hereof.

 

“Organizational
Documents” means the Certificate of Incorporation, the By-Laws, this Certificate of Designation, the charter for each
committee of the Board of Directors and any other charter, by-laws, limited liability company agreements or other governing documents
or corporate governance documents of the Corporation or any of the Subsidiaries, as applicable.

 

“Parity Securities”
has the meaning assigned to it in Section 2 hereof.

 

“Person”
means any individual, corporation, limited liability company, partnership, firm, joint venture, association, joint-stock company,
trust, unincorporated organization, Governmental Authority or other entity.

 

“Senior Securities”
has the meaning assigned to it in Section 2 hereof.

 

“Series A
Directors” has the meaning assigned to it in Section 7(d)(i) hereof.

 

“Series A
Holder” means the Person in whose name the Series A Preferred Stock is recorded in the Corporation’s stock
books as the owner thereof.

 

“Series A
Preferred Stock” has the meaning assigned to it in the introductory paragraph.

 

“Subsidiary”
means any Person of which a majority of the outstanding voting securities or other voting equity interests are owned, directly
or indirectly, by the Corporation.

 

“Transfer”
(as a noun) means, with respect to any Series A Preferred Stock, a direct or indirect transfer, sale, exchange, assignment,
mortgage, pledge, hypothecation or other encumbrance or other disposition of such Series A Preferred Stock, including the
grant of an option or other right, whether directly or indirectly, whether voluntarily, involuntarily or by operation of law. “Transfer”
(as a verb) shall have the correlative meaning.

 

    -5- 

     

    

 

“Transferee”
has a correlative meaning to the term Transfer.

 

[Execution Page Follows]

 

    -6- 

     

    

 

IN WITNESS WHEREOF, the Corporation has
caused this Certificate of Designation to be signed by [●], its [●], this [●] day of ____________, 2021.

 

	 	By:	 
	 	 	Name:
	 	 	Title:

 

[Signature Page to Series A
Certificate of Designation]

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