Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * HEO RICHARD W.	2. Issuer Name and Ticker or Trading Symbol CHICAGO BRIDGE & IRON CO N V [ CBI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) Executive Vice President
(Last)          (First)          (Middle) 2103 RESEARCH FOREST DRIVE	3. Date of Earliest Transaction (MM/DD/YYYY) 5/10/2018
(Street) THE WOODLANDS, TX 77380 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	5/10/2018		D (1)		13402	D	(2)	37920	D
Common Stock	5/10/2018		D (1)		37920	D	(3)	0	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Share Award	$0.0	5/10/2018		D   (1)			8880	(4)	(4)	Common Stock	8880.0	(4)	0	D

Explanation of Responses:
(1)	Chicago Bridge and Iron Company N.V. (the Company), McDermott International, Inc. (McDermott) and certain other parties entered into the Business Combination Agreement, dated December 18, 2017, as amended on January 24, 2018 (the BCA), pursuant to which the Company and McDermott combined their businesses through a series of transactions completed on May 10, 2018 (the Combination).
(2)	If shares of Company common stock were disposed of pursuant to the offer (the Exchange Offer) by McDermott Technology, B.V., a wholly owned subsidiary of McDermott, to exchange each share of CB&I common stock that was validly tendered and not properly withdrawn in the Exchange Offer for the right to receive 0.82407 shares of McDermott common stock, then upon the closing of the Combination, each such tendered share was exchanged into the right to receive 0.82407 shares of McDermott common stock.If shares of Company common stock were not validly tendered in the Exchange Offer, shares of Company common stock were disposed of pursuant to a series of transactions involving a merger, share sale and liquidation, as a result of which former Company shareholders who did not validly tender in the Exchange Offer became entitled to receive, in respect of each former share of Company common stock, 0.82407 shares of McDermott common stock.
(3)	The restricted stock unit award vests in three equal installments on February 14, 2019, February 14, 2020 and February 14, 2021. Pursuant to the BCA, upon the closing of the Combination, the restricted stock unit award was assumed by McDermott and converted into a restricted stock unit award relating to a number of shares of McDermott common stock equal to the number of shares of Company common stock subject to the restricted stock unit award multiplied by 0.82407, rounded to the nearest whole number of shares.
(4)	Pursuant to the BCA, upon the closing of the Combination, each performance share award, whether vested or unvested, was cancelled in exchange for the right to receive an amount in cash equal to (a) the product of (i) the number of shares of the Companys common stock issuable upon vesting of such performance share award at 100% of target multiplied by (ii) 2.47221 multiplied by (iii) $6.64 and (b) a cash amount equal to the amount of accrued dividend equivalents.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HEO RICHARD W. 2103 RESEARCH FOREST DRIVE THE WOODLANDS, TX 77380			Executive Vice President

Signatures
Cindy A. McMinn as attorney in fact		5/14/2018
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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