UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549

SCHEDULE 13G
Under the Securities Exchange Act of 1934 
(Amendment No. ___________)*


Aercap Holdings, N.V.
(Name of Issuer)

 Common
(Title of Class of Securities)

N00985106
(CUSIP Number)

December 31, 2018
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to 
which this Schedule is filed: 
[X ]	Rule 13d-1(b)
[  ]	Rule 13d-1(c)
[  ]	Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a 
reporting person's initial filing on this form with respect to 
the subject class of securities, and for any subsequent 
amendment containing information which would alter the 
disclosures provided in a prior cover page. 

The information required in the remainder of this cover page 
shall not be deemed to be "filed" for the purpose of Section 18 
of the Securities Exchange Act of 1934 ("Act") or otherwise 
subject to the liabilities of that section of the Act but shall 
be subject to all other provisions of the Act (however, see the 
Notes). 

CUSIP No.  N00985106



				
				
1.	Names of Reporting Persons. 
I.R.S. Identification Nos. of above persons (entities 
only). 
     Donald Smith & Co., Inc.
	        13-2807845		
	 
2. 	Check the Appropriate Box if a Member of a Group (See 
Instructions)		
	 
	(a)		 
	(b)  [X]		
				
 
	3.	SEC Use Only  
.........................................................		
		 
	4.	Citizenship or Place of Organization 
		A Delaware Corporation	
				
Number of           5.	Sole Voting Power    2,304,750 shares 
Shares 
Beneficially		6.	Shared Voting Power       0 
Owned by 
Each Reporting		7.	Sole Dispositive Power 6,858,138 shares
Person With				
				8.	Shared Dispositive Power   0
	
 
9.Aggregate Amount Beneficially Owned by Each Reporting Person
                  6,858,138 shares		
				
 
10.	Check if the Aggregate Amount in Row (9) Excludes Certain 
Shares (See Instructions)	
				
11.	Percent of Class Represented by Amount in Row (9) 4.74%  		 
12.	Type of Reporting Person (See Instructions)       IA		


				

1.	Names of Reporting Persons. 
I.R.S. Identification Nos. of above persons (entities 
only). 
     Donald Smith Long/Short Equities Fund, L.P.
	        27-1481102		
	 
2. 	Check the Appropriate Box if a Member of a Group (See 
Instructions)		
	 
	(a)		 
	(b)  [X]		
				
 
	3.	SEC Use Only  
.........................................................		
		 
	4.	Citizenship or Place of Organization 
		A Delaware Corporation	
				
Number of           5.	Sole Voting Power    21,700 shares 
Shares 
Beneficially		6.	Shared Voting Power       0 
Owned by 
Each Reporting		7.	Sole Dispositive Power 6,858,138 shares
Person With				
				8.	Shared Dispositive Power   0
	
 
9.Aggregate Amount Beneficially Owned by Each Reporting Person
                  6,858,138 shares		
				
 
10.	Check if the Aggregate Amount in Row (9) Excludes Certain 
Shares (See Instructions)	
				
11.	Percent of Class Represented by Amount in Row (9) 4.74%  		 
12.	Type of Reporting Person (See Instructions)       PN














Item 1.			

(a)	Name of Issuer: Aercap Holdings, N.V.
(b)	Address of Issuer's Principal Executive Offices
			AerCap House
			65 St. Stephen?s Green
			Dublin 2, Ireland
Item 2.			
 
	(a)	Name of Person Filing: Donald Smith & Co.,Inc.	
 
	(b)	Address of Principal Business Office:
		152 West 57th Street
		New York, NY 10019	
 
	(c)	Citizenship:    A Delaware Corporation	
 
	(d)	Title of Class of Securities: Common

      (e)	CUSIP Number: N00985106
      


	
Item 3.	This statement is filed pursuant to Section 240.13d-1(b), 
and the person filing is an investment advisor registered 
in accordance with Section 240.13d-1(b)(1)(ii)(E);
 
Item 4.	Ownership.		
Provide the following information regarding the aggregate number and 
percentage of the class of securities of the issuer identified in Item 1. 	
 
	(a)	Amount beneficially owned:   	6,858,138
 
	(b)	Percent of class:   		4.74%	
 
	(c)	Number of shares as to which the person has:	
	(i)	SOLE POWER TO VOTE: 		2,326,450
	(ii)	SHARED POWER TO VOTE:		SEE ITEM 6 OF COVER PAGE 
	(iii)	SOLE POWER TO DISPOSE:	6,858,138
	(iv)	SHARED POWER TO DISPOSE:	SEE ITEM 8 OF COVER PAGE	 
		
Item 5.	Ownership of Five Percent or Less is 
If this statement is being filed to report the fact that as of 
the date hereof the reporting person has ceased to be the 
beneficial owner of more than five percent of the class of 
securities, check the following [XX].			
			
Item 6.	Ownership of More than Five Percent on Behalf of Another Person:		
NOT APPLICABLE	

			
Item 7.	Identification and Classification of the Subsidiary Which Acquired 
the Security Being Reported on By the Parent Holding Company		
 		NOT APPLICABLE		
			
Item 8.	Identification and Classification of Members of the Group		
 		See EXHIBIT A			
			
Item 9.	Notice of Dissolution of Group		
	NOT APPLICABLE			
			
Item 10.	Certification		
 
	(a)	 
By signing below I certify that, to the best of my knowledge and 
belief, the securities referred to above were acquired and are held 
in the ordinary course of business and were not acquired and are not 
held for the purpose of or with the effect of changing or 
influencing the control of the issuer of the securities and were not 
acquired and are not held in connection with or as a participant in 
any transaction having that purpose or effect.	
 

SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I 
certify that the information set forth in this statement is true, complete 
and correct. 

January 29, 2019 
Date 

Donald G. Smith___________ 
Signature
 
President_________________ 
Title 



SCHEDULE 13G - TO BE INCLUDED IN
STATEMENTS
	FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
	RULE 13d-1(f)(1)  EXHIBIT A:  

Donald Smith & Co., Inc.	IA
Donald Smith Long/Short Equities Fund, L.P. PN





SCHEDULE 13G - TO BE INCLUDED IN
STATEMENTS
	FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
	RULE 13d-1(f)(1)  AGREEMENT

	The undersigned persons, on January 29, 2019,
agree and consent to the joint filing on their behalf of this
Schedule 13G in connection with their beneficial ownership 
of the Common Stock of Aercap Holdings, N.V. at 
December 31, 2018.  


	Donald Smith & Co., Inc.

	By /s/ Donald G. Smith
	Donald G. Smith
	President
	Duly authorized by and on behalf of Donald Smith & Co., Inc. 


	Donald Smith Long/Short Equities Fund, L.P.

	By /s/ Donald G. Smith
	Donald G. Smith
	President
	Duly authorized by and on behalf of 
		Donald Smith Long/Short Equities Fund, L.P