FORM 4
[ X ] 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
                                                                                  
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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 *

GIBSON JOHN R 		2. Issuer Name and Ticker or Trading Symbol

AMERICAN PACIFIC CORP [ APFC ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O 3883 HOWARD HUGHES PARKWAY, SUITE 700 		3. Date of Earliest Transaction (MM/DD/YYYY)

2/27/2014
(Street)

LAS VEGAS, NV 89169
(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   2/27/2014     U    167838   D   (1) 0   D    
Common Stock   2/27/2014     U    3956   D   (1) 0   D   (2)  
Common Stock   2/27/2014     U    3113   D   (1) 0   I   Plan   (3)

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
Stock Option (Right to Buy)   $6.34   2/27/2014     U         50000      (4) 9/13/2015   Common Stock   50000     (5) 0   D    
Stock Option (Right to Buy)   $11.25   2/27/2014     U         20000      (6) 11/3/2018   Common Stock   20000     (7) 0   D    
Stock Option (Right to Buy)   $7.15   2/27/2014     U         15000      (8) 11/10/2019   Common Stock   15000     (9) 0   D    

Explanation of Responses:
( 1)  Pursuant to the Agreement and Plan of Merger, dated January 9, 2014, among Flamingo Parent Corp., Flamingo Merger Sub Corp. and the Issuer (the "Merger Agreement"), each share of Common Stock was converted into the right to receive a cash amount equal to $46.50.
( 2)  These shares represent unvested restricted shares of Common Stock, that, in accordance with the terms of the Merger Agreement, were each converted into the right to receive a cash amount equal to $46.50.
( 3)  The Reporting Person holds these shares in a qualified retirement plan.
( 4)  The options are fully exercisable, and vested in two equal annual installments beginning on 9/13/2005.
( 5)  Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $2,008,000.00, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.
( 6)  The options are fully exercisable, and vested in three equal annual installments beginning on 11/3/2009.
( 7)  Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $705,000.00, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.
( 8)  The options are fully exercisable, and vested in three equal annual installments beginning on 11/10/2010.
( 9)  Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $590,250.00, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
GIBSON JOHN R
C/O 3883 HOWARD HUGHES PARKWAY
SUITE 700
LAS VEGAS, NV 89169 		X



Signatures
John R. Gibson 2/27/2014
** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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