Document:

Amendment and Restated Founding Warrant

 EXHIBIT 4.9 
 THIS WARRANT AND THE SHARES OF CAPITAL STOCK ISSUED UPON ANY EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS AND MAY NOT
BE SOLD OR OTHERWISE TRANSFERRED BY ANY PERSON, INCLUDING A PLEDGEE, UNLESS (1) EITHER (A) A REGISTRATION WITH RESPECT TO THERETO SHALL BE EFFECTIVE UNDER THE SECURITIES ACT, OR (B) THE COMPANY SHALL HAVE RECEIVED AN OPINION OF
COUNSEL SATISFACTORY TO THE COMPANY THAT AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT IS AVAILABLE, AND (2) THERE SHALL HAVE BEEN COMPLIANCE WITH ALL APPLICABLE STATE SECURITIES OR “BLUE SKY” LAWS. 
  

			
	 No. CS - 3
	  	For the Purchase
of 150,000 shares
of Common Stock

 AMENDED AND RESTATED 
 WARRANT TO PURCHASE 
 COMMON STOCK 
 OF  
 OCEANAUT, INC. 
 (A Marshall Islands Corporation) 
 Oceanaut,
Inc., a Marshall Islands corporation (the “Company”), for value received, hereby certifies that Christopher Georgakis (the “Holder”), is entitled, subject to the terms set forth below, to purchase from the Company,
at any time or from time to time at or before the earlier of 5:00 p.m. Eastern Standard Time on May 9, 2012 (the “Expiration Date”), the termination of this Warrant as provided in Section 8 hereof or the redemption of this
Warrant as provided in Section 9 hereof, 150,000 shares of Common Stock, par value $.0001 per share, of the Company (the “Common Stock”), at a purchase price per share equal to Seven Dollars ($7.00) per share (the “Base
Price”), as adjusted upon the occurrence of certain events as set forth in Section 3 of this Warrant. The shares of stock issuable upon exercise of this Warrant, and the purchase price per share, are hereinafter referred to as the
“Warrant Stock” and the “Purchase Price,” respectively. 
 1. Exercise. 
 1.1 Manner of Exercise; Payment in Cash. This Warrant may be exercised by the Holder, in whole or in part: 
 (a) commencing 90 days following the closing of the Company’s first business combination (the “Initial Business
Combination”) if, and only if, the last sales price of the Company’s common stock exceeds $11.00 per share for any 20 trading days within a 30 trading day period beginning after such initial business combination; and 
 (b) by surrendering this Warrant, with the purchase form appended hereto as Exhibit A duly executed by the Holder, at the principal
office of the Company, or at such other place as the Company may designate, accompanied by payment in full of the Purchase Price payable in respect of the number of shares of Warrant Stock purchased upon such 

 
exercise. Payment of the Purchase Price shall be in cash or by certified or official bank check payable to the order of the Company. 
 1.2 Effectiveness. Each exercise of this Warrant shall be deemed to have been effected immediately prior to the close of business
on the day on which this Warrant shall have been surrendered to the Company as provided in Section 1.1 above. At such time, the person or persons in whose name or names any certificates for Warrant Stock shall be issuable upon such exercise as
provided in Section 1.3 below shall be deemed to have become the holder or holders of record of the Warrant Stock represented by such certificates. 
 1.3. Delivery of Certificates. As soon as practicable after the exercise of this Warrant in full or in part, and in any event within ten (10) business days thereafter, the Company at its sole expense will
cause to be issued in the name of, and delivered to, the Holder, or, subject to the terms and conditions hereof, as such Holder (upon payment by such Holder of any applicable transfer taxes) may direct: 
 (a) A certificate or certificates for the number of full shares of Warrant Stock to which such Holder shall be entitled upon such exercise
plus, in lieu of any fractional share to which such Holder would otherwise be entitled, cash in an amount determined pursuant to Section 2 hereof, and 
 (b) In case such exercise is in part only, a new warrant or warrants (dated the date hereof) of like tenor, calling in the aggregate on the face or faces thereof for the number of shares of Warrant Stock (without
giving effect to any adjustment therein) equal to the number of such shares called for on the face of this Warrant minus the number of such shares purchased by the Holder upon such exercise as provided in Section 1.1 above. 
 1.4 Right to Convert Warrant into Stock: Net Issuance. 
 (a) Right to Convert. Subject to Section 8, in addition to and without limiting the rights of the holder under the terms of
this Warrant, the holder shall have the right to convert this Warrant or any portion thereof (the “Conversion Right”) into shares of Common Stock as provided in this Section 1.4 at any time or from time to time during the term
of this Warrant. Upon exercise of the Conversion Right with respect to a particular number of shares subject to this Warrant (the “Converted Warrant Shares”), the Company shall deliver to the holder (without payment by the holder of any
Purchase Price or any cash or other consideration) that number of shares of fully paid and nonassessable Common Stock equal to the quotient obtained by dividing (X) the value of this Warrant (or the specified portion hereof) on the Conversion
Date (as defined in subsection (b) hereof), which value shall be determined by subtracting (A) the aggregate Purchase Price of the Converted Warrant Shares immediately prior to the exercise of the Conversion Right from (B) the
aggregate fair market value of the Converted Warrant Shares issuable upon exercise of this Warrant (or the specified portion hereof) on the Conversion Date (as herein defined) by (Y) the fair market value of one share of Common Stock on the
Conversion Date (as herein defined). 
 Expressed as a formula, such conversion shall be computed as follows: 
  

					
	 X
	  	 =
	  	 B-A

		  		  	   Y

			
	 where:
	  		  	 X = the number of shares of Common Stock that may be issued to holder

  

 -2- 

					
			
		  		  	 Y = the fair market value (FMV) of one share of Common Stock

			
		  		  	 A = the aggregate Warrant Price (Converted Warrant Shares x Purchase Price)

			
		  		  	 B = the aggregate FMV (i.e., FMV x Converted Warrant Shares)

 No fractional shares shall be issuable upon exercise of the Conversion Right, and, if the number of
shares to be issued determined in accordance with the foregoing formula is other than a whole number, the Company shall pay to the holder an amount in cash equal to the fair market value of the resulting fractional share of the Conversation Date (as
herein defined). 
 (b) Method of Exercise. The Conversion Right may be exercised by the holder by the surrender of
this Warrant at the principal office of the Company together with the Subscription Form in the form attached hereto duly completed and executed and indicating the number of shares subject to this Warrant which are being surrendered (referred to in
Section 1.4(a) hereof as the Converted Warrant Shares) in exercise of the Conversion Right. Such conversion shall be effective upon receipt by the Company of this Warrant together with the aforesaid written statement, or on such later date as
is specified therein (the “Conversion Date”), and, at the election of the holder hereof, may be made contingent upon the occurrence of any of the events specified in Section 8. Certificates for the shares issuable upon exercise
of the Conversion Right and, if applicable, a new Warrant evidencing the balance of the shares remaining subject to this Warrant, shall be issued as of the Conversion Date and shall be delivered to the holder within thirty (30) days following
the Conversion Date. 
 (c) Determination of Fair Market Value. For purposes of this Section 1.4(c), “fair
market value” of a share of Common Stock as of a particular date (the “Determination Date”) shall mean: 
 (i) If the Conversion Right is exercised in connection with and contingent upon a public offering, and if the Company’s Registration Statement relating to such public offering (“Registration Statement”) has been
declared effective by the SEC, then the initial “Price to Public” specified in the final prospectus with respect to such offering. 
 (ii) If the Conversion Right is not exercised in connection with and contingent upon a public offering, then as follows: 
  

	 	(1)	If traded on a securities exchange, the fair market value of the Common Stock shall be deemed to be the average of the closing prices of the Common Stock on such exchange over the
five-day period ending one business day prior to the Determination Date or, if less, such number of days as the Common Stock has been traded on such exchange; 

  

	 	(2)	If traded over-the-counter, the fair market value of the Common Stock shall be deemed to be the average of the closing bid prices of the Common Stock over the five-day period ending
one business day prior to the Determination Date or, if less, such number of days as the Common Stock has been traded over-the-counter; and 

  

	 	(3)	If there is no public market for the Common Stock, then fair market value shall be determined in good faith by the Board of Directors of the Company. 

  

 -3- 

 2. Fractional Shares. The Company shall not be required upon the exercise of this Warrant to issue
any fractional shares, but shall make an adjustment therefor in cash on the basis of the fair market value of the Warrant Stock reasonably determined by the Board of Directors of the Company. 
 3. Certain Adjustments. 
 3.1 Changes in Common Stock. If the Company shall (i) combine the outstanding shares of Common Stock into a lesser number of shares, (ii) subdivide the outstanding shares of Common Stock into a greater number of shares, or
(iii) issue additional shares of Common Stock as a dividend or other distribution with respect to the Common Stock, the number of shares of Warrant Stock shall be equal to the number of shares which the Holder would have been entitled to
receive after the happening of any of the events described above if such shares had been issued immediately prior to the happening of such event, such adjustment to become effective concurrently with the effectiveness of such event. The Purchase
Price in effect immediately prior to any such combination of Common Stock shall, upon the effectiveness of such combination, be proportionately increased. The Purchase Price in effect immediately prior to any such subdivision of Common Stock or at
the record date of such dividend shall upon the effectiveness of such subdivision or immediately after the record date of such dividend be proportionately reduced. 
 3.2 Reorganizations and Reclassifications. If there shall occur any capital reorganization or reclassification of the Common Stock
(other than a change in par value or a subdivision or combination as provided for in Section 3.1), then, as part of any such reorganization or reclassification, lawful provision shall be made so that the Holder shall have the right thereafter
to receive upon the exercise hereof the kind and amount of shares of stock or other securities or property which such Holder would have been entitled to receive if, immediately prior to any such reorganization or reclassification, such Holder had
held the number of shares of Common Stock which were then purchasable upon the exercise of this Warrant. In any such case, appropriate adjustment (as reasonably determined by the Board of Directors of the Company) shall be made in the application of
the provisions set forth herein with respect to the rights and interests thereafter of the Holder such that the provisions set forth in this Section 3 (including provisions with respect to adjustment of the Purchase Price) shall thereafter be
applicable, as nearly as is reasonably practicable, in relation to any shares of stock or other securities or property thereafter deliverable upon the exercise of this Warrant. 
 3.3 Merger, Consolidation or Sale of Assets. Subject to the provisions of Section 8, if there shall be a merger or
consolidation of the Company with or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation of the Company or the acquisition by the Company of other businesses where the Company
survives as a going concern), or the sale of all or substantially all of the Company’s capital stock or assets to any other person, then as a part of such transaction, provision shall be made so that the Holder shall thereafter be entitled to
receive the number of shares of stock or other securities or property of the Company, or of the successor corporation resulting from the merger, consolidation or sale, to which the Holder would have been entitled if the Holder had exercised its
rights pursuant to the Warrant immediately prior thereto. In any such case, appropriate adjustment shall be made in the application of the provisions of this Section 3 to the end that the provisions of this Section 3 shall be applicable
after that event in as nearly equivalent a manner as may be practicable. 
 3.4 Certificate of Adjustment. When any
adjustment is required to be made in the Purchase Price, the Company shall promptly mail to the Holder a certificate setting forth the Purchase Price after such adjustment and setting forth a brief statement of the facts requiring such 

  

 -4- 

 
adjustment. Delivery of such certificate shall be deemed to be a final and binding determination with respect to such adjustment unless challenged by the
Holder within ten (10) days of receipt thereof. Such certificate shall also set forth the kind and amount of stock or other securities or property into which this Warrant shall be exercisable following the occurrence of any of the events
specified in this Section 3. 
 4. Compliance with Securities Act. 
 4.1 Unregistered Securities. The Holder acknowledges that this Warrant and the Warrant Stock have not been registered under the
Securities Act of 1933, as amended, and the rules and regulations thereunder, or any successor legislation (the “Securities Act”), and agrees not to sell, pledge, distribute, offer for sale, transfer or otherwise dispose of this
Warrant or any Warrant Stock in the absence of (i) an effective registration statement under the Securities Act covering this Warrant or such Warrant Stock and registration or qualification of this Warrant or such Warrant Stock under any
applicable “blue sky” or state securities law then in effect, or (ii) an opinion of counsel, satisfactory to the Company, that such registration and qualification are not required. The Company may delay issuance of the Warrant Stock
until completion of any action or obtaining of any consent, which the Company deems necessary under any applicable law (including without limitation state securities or “blue sky” laws). 
 4.2 Investment Letter. Without limiting the generality of Section 4.1, unless the offer and sale of any shares of Warrant
Stock shall have been effectively registered under the Securities Act, the Company shall be under no obligation to issue the Warrant Stock unless and until the Holder shall have executed an investment letter in form and substance satisfactory to the
Company, including a warranty at the time of such exercise that the Holder is acquiring such shares for its own account, for investment and not with a view to, or for sale in connection with, the distribution of any such shares. 
 4.3 Legend. Certificates delivered to the Holder pursuant to Section 1.3 shall bear the following legend or a legend in
substantially similar form: 
 “THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN TAKEN FOR INVESTMENT AND THEY MAY NOT BE SOLD OR
OTHERWISE TRANSFERRED BY ANY PERSON, INCLUDING A PLEDGEE, IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT FOR THE SHARES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR AN OPINION OF COUNSEL, SATISFACTORY TO THE COMPANY, THAT AN EXEMPTION
FROM REGISTRATION IS THEN AVAILABLE.” 
 5. Reservation of Stock. The Company will at all times reserve and keep available,
solely for issuance and delivery upon the exercise of this Warrant, such shares of Warrant Stock and other stock, securities and property, as from time to time shall be issuable upon the exercise of this Warrant. The Company covenants that all
shares of Warrant Stock so issuable will, when issued, be duly and validly issued and fully paid and nonassessable. 
 6. RESERVED.

 7. Replacement of Warrants. Upon receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of this Warrant and (in the case of loss, theft or destruction) upon delivery of an indemnity agreement (with surety if reasonably required) in an amount reasonably satisfactory 

  

 -5- 

 
to the Company, or (in the case of mutilation) upon surrender and cancellation of this Warrant, the Company will issue, in lieu thereof, a new Warrant of
like tenor. 
 8. Termination Upon Certain Events. If, subsequent to the Initial Business Combination, there shall be a merger or
consolidation of the Company with or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation of the Company or the acquisition by the Company of other businesses where the Company
survives as a going concern), or the sale of all or substantially all of the Company’s capital stock or assets to any other person, or the liquidation or dissolution of the Company, then as a part of such transaction, at the Company’s
option, either: 
 (a) provision shall be made so that the Holder shall thereafter be entitled to receive the number of shares
of stock or other securities or property of the Company, or of the successor corporation resulting from the merger, consolidation or sale, to which the Holder would have been entitled if the Holder had exercised its rights pursuant to the Warrant
immediately prior thereto (and, in such case, appropriate adjustment shall be made in the application of the provisions of this Section 8(a) to the end that the provisions of this Section 3 shall be applicable after that event in as nearly
equivalent a manner as may be practicable); or 
 (b) this Warrant shall terminate on the effective date of such merger,
consolidation or sale (the “Termination Date”) and become null and void, provided, that if this Warrant shall not have otherwise terminated or expired, (1) the Company shall have given the Holder written notice of such
Termination Date at least twenty (20) business days prior to the occurrence thereof and (2) the Holder shall have the right until 5:00 p.m., Eastern Standard Time, on the day immediately prior to the Termination Date to exercise its rights
hereunder to the extent not previously exercised. 
 9. Transferability. The Warrant shall not be assigned, pledged or hypothecated in
any way and shall not be subject to execution, attachment or similar process until such time as the Company completes its first business combination. The foregoing transfer restriction shall not apply to (a) transfers resulting from the death
of any of the Holder, (b) transfers by operation of law, (c) any transfer for estate planning purposes to persons immediately related to the transferor by blood, marriage or adoption, or (d) any trust solely for the benefit of such
transferor and/or the persons described in the preceding clause; provided, however, that with respect to each of the transfers described in clauses (a), (b), (c) and (d) of this sentence, prior to such transfer, each
permitted transferee or the trustee or legal guardian for each permitted transferee agrees in writing to be bound by the terms of this Warrant. Any attempted transfer, assignment, pledge, hypothecation or other disposition of this Warrant or of any
rights granted hereunder contrary to the provisions of this Section 9, or the levy of any attachment or similar process upon the Warrant or such rights, shall be null and void. 
 10. Redemption. The Warrant shall be non-redeemable so long as the Holder holds such Warrant following its issuance by the Company to such Holder.
In the event the Warrant is transferred by the Holder, then the Warrant may be redeemed in whole, and not in part, at a price of $.01 per Warrant, upon a minimum of 30 days’ prior written notice of redemption; an if, and only if, the last sales
price of the Company’s Common Stock equals or exceeds $11.50 per share for any twenty (20) trading days within a 30 trading day period ending three (3) business days before the Company sends the notice of redemption. 
 11. Registration Rights. This Warrant, together with the shares of Common Stock underlying this Warrant, are and will be entitled to registration
rights under a registration rights agreement to be signed between the Holder and the Company. 
  

 -6- 

 12. No Rights as Shareholder. Until the exercise of this Warrant, the Holder shall not have or
exercise any rights by virtue hereof as a shareholder of the Company. 
 13.
Notices. All notices, requests and other communications hereunder shall be in writing, shall be (i) delivered by hand, (ii) made by telex, telecopy or facsimile transmission, (iii) sent by overnight courier, or (iv) sent
by registered mail, postage prepaid, return receipt requested. In the case of notices from the Company to the Holder, they shall be sent to the address furnished to the Company in writing by the last Holder who shall have furnished an address to the
Company in writing. All notices from the Holder to the Company shall be delivered to the Company at its offices at 17th Km National Road Athens-Lamia & Finikos Street, 145 64 Nea Kifisia, Athens, Greece, or such other address as the Company shall so notify the Holder. All notices, requests and other communications hereunder shall be deemed
to have been given (i) by hand, at the time of the delivery thereof to the receiving party at the address of such party described above, (ii) if made by telex, telecopy or facsimile transmission, at the time that receipt thereof has been
acknowledged by electronic confirmation or otherwise, (iii) if sent by overnight courier, on the next business day following the day such notices is delivered to the courier service, or (iv) if sent by registered mail, on the fifth
business day following the day such mailing is made. 
 14. Waivers and Modifications. Any term or provision of this Warrant may be
waived only by written document executed by the party entitled to the benefits of such terms or provisions. The terms and provisions of this Warrant may be modified or amended only by written agreement executed by the parties hereto. 
 15. Headings. The headings in this Warrant are for convenience of reference only and shall in no way modify or affect the meaning or construction
of any of the terms or provisions of this Warrant. 
 16. Governing Law. This Warrant will be governed by and construed in accordance
with and governed by the laws of the Republic of the Marshall Islands, without giving effect to the conflict of law principles thereof. 
 (Remainder of page intentionally left blank. Signature page to follow.) 
  

 -7- 

 IN WITNESS WHEREOF, the undersigned has executed
this Amended and Restated Warrant to Purchase Common Stock as of the 28th day of February, 2007. 
  

			
	OCEANAUT, INC.
		
	By:	 	/S/    CHRISTOPHER GEORGAKIS
	Name:	 	Christopher Georgakis
	Title:	 	Chief Executive Officer and President

 EXHIBIT A 
 PURCHASE FORM 
  

	To:	OCEANAUT, INC. 

 The undersigned pursuant to the
provisions set forth in the attached Warrant (No. WCS-____), hereby irrevocably elects to (check one): 
  

	 	 ̈	(A) purchase ___ shares of the Common Stock, par value $___ per share, of Oceanaut, Inc. (the “Common Stock”), covered by such Warrant and herewith makes payment of
$_____, representing the full purchase price for such shares at the price per share provided for in such Warrant; or 

  

	 	 ̈	(B) convert ___ Converted Warrant Shares into that number of shares of fully paid and nonassessable shares of Common Stock, determined pursuant to the provisions of Section 1.4 of
the Warrant. 

 The Common Stock for which the Warrant may be exercised or converted shall be known herein as the “Warrant Stock.”

 The undersigned is aware that the Warrant Stock has not been and will not be registered under the Securities Act of 1933, as amended (the
“Securities Act”) or any state securities laws. The undersigned understands that reliance by the Company on exemptions under the Securities Act is predicated in part upon the truth and accuracy of the statements of the undersigned
in this Purchase Form. 
 The undersigned represents and warrants that (1) it has been furnished with all information which it deems
necessary to evaluate the merits and risks of the purchase of the Warrant Stock, (2) it has had the opportunity to ask questions concerning the Warrant Stock and the Company and all questions posed have been answered to its satisfaction,
(3) it has been given the opportunity to obtain any additional information it deems necessary to verify the accuracy of any information obtained concerning the Warrant Stock and the Company and (4) it has such knowledge and experience in
financial and business matters that it is able to evaluate the merits and risks of purchasing the Warrant Stock and to make an informed investment decision relating thereto. 
 The undersigned hereby represents and warrant that it is purchasing the Warrant Stock for its own account for investment and not with a view to the sale
or distribution of all or any part of the Warrant Stock. 
 The undersigned understands that because the Warrant Stock has not been
registered under the Securities Act, it must continue to bear the economic risk of the investment for an indefinite period of time and the Warrant Stock cannot be sold unless it is subsequently registered under applicable federal and state
securities laws or an exemption from such registration is available. 
 The undersigned agrees that it will in no event sell or distribute or
otherwise dispose of all or any part of the Warrant Stock unless (1) there is an effective registration statement under the Securities Act and applicable state securities laws covering any such transaction involving the Warrant Stock, or
(2) the Company receives an opinion satisfactory to the Company of the undersigned’s legal counsel stating that such transaction is exempt from registration. The undersigned consents to the placing of a legend on its certificate for the
Warrant Stock stating that the Warrant Stock has not been registered and setting forth 

  

 -2- 

 
the restriction on transfer contemplated hereby and to the placing of a stop transfer order on the books of the Company and with any transfer agents against
the Warrant Stock until the Warrant Stock may be legally resold or distributed without restriction. 
 The undersigned has considered the
federal and state income tax implications of the exercise of the Warrant and the purchase and subsequent sale of the Warrant Stock. 
  

			
	
	   
		
	Dated:	 	  

  

 10Amendment and Restated Founding Warrant

 EXHIBIT 4.10 
 THIS WARRANT AND THE SHARES OF CAPITAL STOCK ISSUED UPON ANY EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS AND MAY NOT
BE SOLD OR OTHERWISE TRANSFERRED BY ANY PERSON, INCLUDING A PLEDGEE, UNLESS (1) EITHER (A) A REGISTRATION WITH RESPECT TO THERETO SHALL BE EFFECTIVE UNDER THE SECURITIES ACT, OR (B) THE COMPANY SHALL HAVE RECEIVED AN OPINION OF
COUNSEL SATISFACTORY TO THE COMPANY THAT AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT IS AVAILABLE, AND (2) THERE SHALL HAVE BEEN COMPLIANCE WITH ALL APPLICABLE STATE SECURITIES OR “BLUE SKY” LAWS. 
  

			
	 No. CS - 4
	  	For the Purchase
of 150,000 shares
of Common Stock

 AMENDED AND RESTATED 
 WARRANT TO PURCHASE 
 COMMON STOCK 
 OF  
 OCEANAUT, INC. 
 (A Marshall Islands Corporation) 
 Oceanaut,
Inc., a Marshall Islands corporation (the “Company”), for value received, hereby certifies that Eleftherios A. Papatrifon (the “Holder”), is entitled, subject to the terms set forth below, to purchase from the
Company, at any time or from time to time at or before the earlier of 5:00 p.m. Eastern Standard Time on May 9, 2012 (the “Expiration Date”), the termination of this Warrant as provided in Section 8 hereof or the redemption of
this Warrant as provided in Section 9 hereof, 150,000 shares of Common Stock, par value $.0001 per share, of the Company (the “Common Stock”), at a purchase price per share equal to Seven Dollars ($7.00) per share (the
“Base Price”), as adjusted upon the occurrence of certain events as set forth in Section 3 of this Warrant. The shares of stock issuable upon exercise of this Warrant, and the purchase price per share, are hereinafter referred
to as the “Warrant Stock” and the “Purchase Price,” respectively. 
 1. Exercise. 
 1.1 Manner of Exercise; Payment in Cash. This Warrant may be exercised by the Holder, in whole or in part: 
 (a) commencing 90 days following the closing of the Company’s first business combination (the “Initial Business
Combination”) if, and only if, the last sales price of the Company’s common stock exceeds $11.00 per share for any 20 trading days within a 30 trading day period beginning after such initial business combination; and 
 (b) by surrendering this Warrant, with the purchase form appended hereto as Exhibit A duly executed by the Holder, at the principal
office of the Company, or at such other place as the Company may designate, accompanied by payment in full of the Purchase Price payable in respect of the number of shares of Warrant Stock purchased upon such 

 
exercise. Payment of the Purchase Price shall be in cash or by certified or official bank check payable to the order of the Company. 
 1.2 Effectiveness. Each exercise of this Warrant shall be deemed to have been effected immediately prior to the close of business
on the day on which this Warrant shall have been surrendered to the Company as provided in Section 1.1 above. At such time, the person or persons in whose name or names any certificates for Warrant Stock shall be issuable upon such exercise as
provided in Section 1.3 below shall be deemed to have become the holder or holders of record of the Warrant Stock represented by such certificates. 
 1.3. Delivery of Certificates. As soon as practicable after the exercise of this Warrant in full or in part, and in any event within ten (10) business days thereafter, the Company at its sole expense will
cause to be issued in the name of, and delivered to, the Holder, or, subject to the terms and conditions hereof, as such Holder (upon payment by such Holder of any applicable transfer taxes) may direct: 
 (a) A certificate or certificates for the number of full shares of Warrant Stock to which such Holder shall be entitled upon such exercise
plus, in lieu of any fractional share to which such Holder would otherwise be entitled, cash in an amount determined pursuant to Section 2 hereof, and 
 (b) In case such exercise is in part only, a new warrant or warrants (dated the date hereof) of like tenor, calling in the aggregate on the face or faces thereof for the number of shares of Warrant Stock (without
giving effect to any adjustment therein) equal to the number of such shares called for on the face of this Warrant minus the number of such shares purchased by the Holder upon such exercise as provided in Section 1.1 above. 
 1.4 Right to Convert Warrant into Stock: Net Issuance. 
 (a) Right to Convert. Subject to Section 8, in addition to and without limiting the rights of the holder under the terms of
this Warrant, the holder shall have the right to convert this Warrant or any portion thereof (the “Conversion Right”) into shares of Common Stock as provided in this Section 1.4 at any time or from time to time during the term
of this Warrant. Upon exercise of the Conversion Right with respect to a particular number of shares subject to this Warrant (the “Converted Warrant Shares”), the Company shall deliver to the holder (without payment by the holder of any
Purchase Price or any cash or other consideration) that number of shares of fully paid and nonassessable Common Stock equal to the quotient obtained by dividing (X) the value of this Warrant (or the specified portion hereof) on the Conversion
Date (as defined in subsection (b) hereof), which value shall be determined by subtracting (A) the aggregate Purchase Price of the Converted Warrant Shares immediately prior to the exercise of the Conversion Right from (B) the
aggregate fair market value of the Converted Warrant Shares issuable upon exercise of this Warrant (or the specified portion hereof) on the Conversion Date (as herein defined) by (Y) the fair market value of one share of Common Stock on the
Conversion Date (as herein defined). 
 Expressed as a formula, such conversion shall be computed as follows: 
  

					
	 X
	  	 =
	  	 B-A

		  		  	   Y

			
	 where:
	  		  	 X = the number of shares of Common Stock that may be issued to holder

  

 -2- 

					
			
		  		  	 Y = the fair market value (FMV) of one share of Common Stock

			
		  		  	 A = the aggregate Warrant Price (Converted Warrant Shares x Purchase Price)

			
		  		  	 B = the aggregate FMV (i.e., FMV x Converted Warrant Shares)

 No fractional shares shall be issuable upon exercise of the Conversion Right, and, if the number of
shares to be issued determined in accordance with the foregoing formula is other than a whole number, the Company shall pay to the holder an amount in cash equal to the fair market value of the resulting fractional share of the Conversation Date (as
herein defined). 
 (b) Method of Exercise. The Conversion Right may be exercised by the holder by the surrender of
this Warrant at the principal office of the Company together with the Subscription Form in the form attached hereto duly completed and executed and indicating the number of shares subject to this Warrant which are being surrendered (referred to in
Section 1.4(a) hereof as the Converted Warrant Shares) in exercise of the Conversion Right. Such conversion shall be effective upon receipt by the Company of this Warrant together with the aforesaid written statement, or on such later date as
is specified therein (the “Conversion Date”), and, at the election of the holder hereof, may be made contingent upon the occurrence of any of the events specified in Section 8. Certificates for the shares issuable upon exercise
of the Conversion Right and, if applicable, a new Warrant evidencing the balance of the shares remaining subject to this Warrant, shall be issued as of the Conversion Date and shall be delivered to the holder within thirty (30) days following
the Conversion Date. 
 (c) Determination of Fair Market Value. For purposes of this Section 1.4(c), “fair
market value” of a share of Common Stock as of a particular date (the “Determination Date”) shall mean: 
 (i) If the Conversion Right is exercised in connection with and contingent upon a public offering, and if the Company’s Registration Statement relating to such public offering (“Registration Statement”) has been
declared effective by the SEC, then the initial “Price to Public” specified in the final prospectus with respect to such offering. 
 (ii) If the Conversion Right is not exercised in connection with and contingent upon a public offering, then as follows: 
  

	 	(1)	If traded on a securities exchange, the fair market value of the Common Stock shall be deemed to be the average of the closing prices of the Common Stock on such exchange over the
five-day period ending one business day prior to the Determination Date or, if less, such number of days as the Common Stock has been traded on such exchange; 

  

	 	(2)	If traded over-the-counter, the fair market value of the Common Stock shall be deemed to be the average of the closing bid prices of the Common Stock over the five-day period ending
one business day prior to the Determination Date or, if less, such number of days as the Common Stock has been traded over-the-counter; and 

  

	 	(3)	If there is no public market for the Common Stock, then fair market value shall be determined in good faith by the Board of Directors of the Company. 

  

 -3- 

 2. Fractional Shares. The Company shall not be required upon the exercise of this Warrant to issue
any fractional shares, but shall make an adjustment therefor in cash on the basis of the fair market value of the Warrant Stock reasonably determined by the Board of Directors of the Company. 
 3. Certain Adjustments. 
 3.1 Changes in Common Stock. If the Company shall (i) combine the outstanding shares of Common Stock into a lesser number of shares, (ii) subdivide the outstanding shares of Common Stock into a greater number of shares, or
(iii) issue additional shares of Common Stock as a dividend or other distribution with respect to the Common Stock, the number of shares of Warrant Stock shall be equal to the number of shares which the Holder would have been entitled to
receive after the happening of any of the events described above if such shares had been issued immediately prior to the happening of such event, such adjustment to become effective concurrently with the effectiveness of such event. The Purchase
Price in effect immediately prior to any such combination of Common Stock shall, upon the effectiveness of such combination, be proportionately increased. The Purchase Price in effect immediately prior to any such subdivision of Common Stock or at
the record date of such dividend shall upon the effectiveness of such subdivision or immediately after the record date of such dividend be proportionately reduced. 
 3.2 Reorganizations and Reclassifications. If there shall occur any capital reorganization or reclassification of the Common Stock
(other than a change in par value or a subdivision or combination as provided for in Section 3.1), then, as part of any such reorganization or reclassification, lawful provision shall be made so that the Holder shall have the right thereafter
to receive upon the exercise hereof the kind and amount of shares of stock or other securities or property which such Holder would have been entitled to receive if, immediately prior to any such reorganization or reclassification, such Holder had
held the number of shares of Common Stock which were then purchasable upon the exercise of this Warrant. In any such case, appropriate adjustment (as reasonably determined by the Board of Directors of the Company) shall be made in the application of
the provisions set forth herein with respect to the rights and interests thereafter of the Holder such that the provisions set forth in this Section 3 (including provisions with respect to adjustment of the Purchase Price) shall thereafter be
applicable, as nearly as is reasonably practicable, in relation to any shares of stock or other securities or property thereafter deliverable upon the exercise of this Warrant. 
 3.3 Merger, Consolidation or Sale of Assets. Subject to the provisions of Section 8, if there shall be a merger or
consolidation of the Company with or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation of the Company or the acquisition by the Company of other businesses where the Company
survives as a going concern), or the sale of all or substantially all of the Company’s capital stock or assets to any other person, then as a part of such transaction, provision shall be made so that the Holder shall thereafter be entitled to
receive the number of shares of stock or other securities or property of the Company, or of the successor corporation resulting from the merger, consolidation or sale, to which the Holder would have been entitled if the Holder had exercised its
rights pursuant to the Warrant immediately prior thereto. In any such case, appropriate adjustment shall be made in the application of the provisions of this Section 3 to the end that the provisions of this Section 3 shall be applicable
after that event in as nearly equivalent a manner as may be practicable. 
 3.4 Certificate of Adjustment. When any
adjustment is required to be made in the Purchase Price, the Company shall promptly mail to the Holder a certificate setting forth the Purchase Price after such adjustment and setting forth a brief statement of the facts requiring such 

  

 -4- 

 
adjustment. Delivery of such certificate shall be deemed to be a final and binding determination with respect to such adjustment unless challenged by the
Holder within ten (10) days of receipt thereof. Such certificate shall also set forth the kind and amount of stock or other securities or property into which this Warrant shall be exercisable following the occurrence of any of the events
specified in this Section 3. 
 4. Compliance with Securities Act. 
 4.1 Unregistered Securities. The Holder acknowledges that this Warrant and the Warrant Stock have not been registered under the
Securities Act of 1933, as amended, and the rules and regulations thereunder, or any successor legislation (the “Securities Act”), and agrees not to sell, pledge, distribute, offer for sale, transfer or otherwise dispose of this
Warrant or any Warrant Stock in the absence of (i) an effective registration statement under the Securities Act covering this Warrant or such Warrant Stock and registration or qualification of this Warrant or such Warrant Stock under any
applicable “blue sky” or state securities law then in effect, or (ii) an opinion of counsel, satisfactory to the Company, that such registration and qualification are not required. The Company may delay issuance of the Warrant Stock
until completion of any action or obtaining of any consent, which the Company deems necessary under any applicable law (including without limitation state securities or “blue sky” laws). 
 4.2 Investment Letter. Without limiting the generality of Section 4.1, unless the offer and sale of any shares of Warrant
Stock shall have been effectively registered under the Securities Act, the Company shall be under no obligation to issue the Warrant Stock unless and until the Holder shall have executed an investment letter in form and substance satisfactory to the
Company, including a warranty at the time of such exercise that the Holder is acquiring such shares for its own account, for investment and not with a view to, or for sale in connection with, the distribution of any such shares. 
 4.3 Legend. Certificates delivered to the Holder pursuant to Section 1.3 shall bear the following legend or a legend in
substantially similar form: 
 “THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN TAKEN FOR INVESTMENT AND THEY MAY NOT BE SOLD OR
OTHERWISE TRANSFERRED BY ANY PERSON, INCLUDING A PLEDGEE, IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT FOR THE SHARES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR AN OPINION OF COUNSEL, SATISFACTORY TO THE COMPANY, THAT AN EXEMPTION
FROM REGISTRATION IS THEN AVAILABLE.” 
 5. Reservation of Stock. The Company will at all times reserve and keep available,
solely for issuance and delivery upon the exercise of this Warrant, such shares of Warrant Stock and other stock, securities and property, as from time to time shall be issuable upon the exercise of this Warrant. The Company covenants that all
shares of Warrant Stock so issuable will, when issued, be duly and validly issued and fully paid and nonassessable. 
 6. RESERVED.

 7. Replacement of Warrants. Upon receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of this Warrant and (in the case of loss, theft or destruction) upon delivery of an indemnity agreement (with surety if reasonably required) in an amount reasonably satisfactory 

  

 -5- 

 
to the Company, or (in the case of mutilation) upon surrender and cancellation of this Warrant, the Company will issue, in lieu thereof, a new Warrant of
like tenor. 
 8. Termination Upon Certain Events. If, subsequent to the Initial Business Combination, there shall be a merger or
consolidation of the Company with or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation of the Company or the acquisition by the Company of other businesses where the Company
survives as a going concern), or the sale of all or substantially all of the Company’s capital stock or assets to any other person, or the liquidation or dissolution of the Company, then as a part of such transaction, at the Company’s
option, either: 
 (a) provision shall be made so that the Holder shall thereafter be entitled to receive the number of shares
of stock or other securities or property of the Company, or of the successor corporation resulting from the merger, consolidation or sale, to which the Holder would have been entitled if the Holder had exercised its rights pursuant to the Warrant
immediately prior thereto (and, in such case, appropriate adjustment shall be made in the application of the provisions of this Section 8(a) to the end that the provisions of this Section 3 shall be applicable after that event in as nearly
equivalent a manner as may be practicable); or 
 (b) this Warrant shall terminate on the effective date of such merger,
consolidation or sale (the “Termination Date”) and become null and void, provided, that if this Warrant shall not have otherwise terminated or expired, (1) the Company shall have given the Holder written notice of such
Termination Date at least twenty (20) business days prior to the occurrence thereof and (2) the Holder shall have the right until 5:00 p.m., Eastern Standard Time, on the day immediately prior to the Termination Date to exercise its rights
hereunder to the extent not previously exercised. 
 9. Transferability. The Warrant shall not be assigned, pledged or hypothecated in
any way and shall not be subject to execution, attachment or similar process until such time as the Company completes its first business combination. The foregoing transfer restriction shall not apply to (a) transfers resulting from the death
of any of the Holder, (b) transfers by operation of law, (c) any transfer for estate planning purposes to persons immediately related to the transferor by blood, marriage or adoption, or (d) any trust solely for the benefit of such
transferor and/or the persons described in the preceding clause; provided, however, that with respect to each of the transfers described in clauses (a), (b), (c) and (d) of this sentence, prior to such transfer, each
permitted transferee or the trustee or legal guardian for each permitted transferee agrees in writing to be bound by the terms of this Warrant. Any attempted transfer, assignment, pledge, hypothecation or other disposition of this Warrant or of any
rights granted hereunder contrary to the provisions of this Section 9, or the levy of any attachment or similar process upon the Warrant or such rights, shall be null and void. 
 10. Redemption. The Warrant shall be non-redeemable so long as the Holder holds such Warrant following its issuance by the Company to such Holder.
In the event the Warrant is transferred by the Holder, then the Warrant may be redeemed in whole, and not in part, at a price of $.01 per Warrant, upon a minimum of 30 days’ prior written notice of redemption; an if, and only if, the last sales
price of the Company’s Common Stock equals or exceeds $11.50 per share for any twenty (20) trading days within a 30 trading day period ending three (3) business days before the Company sends the notice of redemption. 
 11. Registration Rights. This Warrant, together with the shares of Common Stock underlying this Warrant, are and will be entitled to registration
rights under a registration rights agreement to be signed between the Holder and the Company. 
  

 -6- 

 12. No Rights as Shareholder. Until the exercise of this Warrant, the Holder shall not have or
exercise any rights by virtue hereof as a shareholder of the Company. 
 13.
Notices. All notices, requests and other communications hereunder shall be in writing, shall be (i) delivered by hand, (ii) made by telex, telecopy or facsimile transmission, (iii) sent by overnight courier, or (iv) sent
by registered mail, postage prepaid, return receipt requested. In the case of notices from the Company to the Holder, they shall be sent to the address furnished to the Company in writing by the last Holder who shall have furnished an address to the
Company in writing. All notices from the Holder to the Company shall be delivered to the Company at its offices at 17th Km National Road Athens-Lamia & Finikos Street, 145 64 Nea Kifisia, Athens, Greece, or such other address as the Company shall so notify the Holder. All notices, requests and other communications hereunder shall be deemed
to have been given (i) by hand, at the time of the delivery thereof to the receiving party at the address of such party described above, (ii) if made by telex, telecopy or facsimile transmission, at the time that receipt thereof has been
acknowledged by electronic confirmation or otherwise, (iii) if sent by overnight courier, on the next business day following the day such notices is delivered to the courier service, or (iv) if sent by registered mail, on the fifth
business day following the day such mailing is made. 
 14. Waivers and Modifications. Any term or provision of this Warrant may be
waived only by written document executed by the party entitled to the benefits of such terms or provisions. The terms and provisions of this Warrant may be modified or amended only by written agreement executed by the parties hereto. 
 15. Headings. The headings in this Warrant are for convenience of reference only and shall in no way modify or affect the meaning or construction
of any of the terms or provisions of this Warrant. 
 16. Governing Law. This Warrant will be governed by and construed in accordance
with and governed by the laws of the Republic of the Marshall Islands, without giving effect to the conflict of law principles thereof. 
 (Remainder of page intentionally left blank. Signature page to follow.) 
  

 -7- 

 IN WITNESS WHEREOF, the undersigned has executed
this Amended and Restated Warrant to Purchase Common Stock as of the 28th day of February, 2007. 
  

			
	OCEANAUT, INC.
		
	By:	 	/S/    CHRISTOPHER GEORGAKIS
	Name:	 	Christopher Georgakis
	Title:	 	Chief Executive Officer and President

 EXHIBIT A 
 PURCHASE FORM 
  

	To:	OCEANAUT, INC. 

 The undersigned pursuant to the
provisions set forth in the attached Warrant (No. WCS-____), hereby irrevocably elects to (check one): 
  

	 	 ̈	(A) purchase ___ shares of the Common Stock, par value $___ per share, of Oceanaut, Inc. (the “Common Stock”), covered by such Warrant and herewith makes payment of
$_____, representing the full purchase price for such shares at the price per share provided for in such Warrant; or 

  

	 	 ̈	(B) convert ___ Converted Warrant Shares into that number of shares of fully paid and nonassessable shares of Common Stock, determined pursuant to the provisions of Section 1.4 of
the Warrant. 

 The Common Stock for which the Warrant may be exercised or converted shall be known herein as the “Warrant Stock.”

 The undersigned is aware that the Warrant Stock has not been and will not be registered under the Securities Act of 1933, as amended (the
“Securities Act”) or any state securities laws. The undersigned understands that reliance by the Company on exemptions under the Securities Act is predicated in part upon the truth and accuracy of the statements of the undersigned
in this Purchase Form. 
 The undersigned represents and warrants that (1) it has been furnished with all information which it deems
necessary to evaluate the merits and risks of the purchase of the Warrant Stock, (2) it has had the opportunity to ask questions concerning the Warrant Stock and the Company and all questions posed have been answered to its satisfaction,
(3) it has been given the opportunity to obtain any additional information it deems necessary to verify the accuracy of any information obtained concerning the Warrant Stock and the Company and (4) it has such knowledge and experience in
financial and business matters that it is able to evaluate the merits and risks of purchasing the Warrant Stock and to make an informed investment decision relating thereto. 
 The undersigned hereby represents and warrant that it is purchasing the Warrant Stock for its own account for investment and not with a view to the sale
or distribution of all or any part of the Warrant Stock. 
 The undersigned understands that because the Warrant Stock has not been
registered under the Securities Act, it must continue to bear the economic risk of the investment for an indefinite period of time and the Warrant Stock cannot be sold unless it is subsequently registered under applicable federal and state
securities laws or an exemption from such registration is available. 
 The undersigned agrees that it will in no event sell or distribute or
otherwise dispose of all or any part of the Warrant Stock unless (1) there is an effective registration statement under the Securities Act and applicable state securities laws covering any such transaction involving the Warrant Stock, or
(2) the Company receives an opinion satisfactory to the Company of the undersigned’s legal counsel stating that such transaction is exempt from registration. The undersigned consents to the placing of a legend on its certificate for the
Warrant Stock stating that the Warrant Stock has not been registered and setting forth 

  

 -2- 

 
the restriction on transfer contemplated hereby and to the placing of a stop transfer order on the books of the Company and with any transfer agents against
the Warrant Stock until the Warrant Stock may be legally resold or distributed without restriction. 
 The undersigned has considered the
federal and state income tax implications of the exercise of the Warrant and the purchase and subsequent sale of the Warrant Stock. 
  

			
	
	   
		
	Dated:	 	  

  

 10

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