XNAS:APFC Insider Activity 3 Filing - 6/4/2012

Effective Date 6/4/2012

FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  CORNWALL CAPITAL MANAGEMENT LP
2. Date of Event Requiring Statement (Month/Day/Year)
06/04/2012
3. Issuer Name and Ticker or Trading Symbol
AMERICAN PACIFIC CORP [APFC]
(Last)
(First)
(Middle)
ONE ROCKEFELLER PLAZA, 24TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed (Month/Day/Year)
(Street)

NEW YORK, NY 10020
6. Individual or Joint/Group Filing (Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $.10 per share ("Common Stock") 872,838
I
See footnote(1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
CORNWALL CAPITAL MANAGEMENT LP
ONE ROCKEFELLER PLAZA
24TH FLOOR
NEW YORK, NY 10020
    X    
Cornwall GP, LLC
ONE ROCKEFELLER PLAZA
24TH FLOOR
NEW YORK, NY 10020
    X    
Cornwall Master LP
ONE ROCKEFELLER PLAZA
24TH FLOOR
NEW YORK, NY 10020
    X    
Mai James
ONE ROCKEFELLER PLAZA
24TH FLOOR
NEW YORK, NY 10020
    X    

Signatures

/s/ Cornwall Master LP, By: Cornwall GP, LLC, its General Partner, By: James Mai, its Managing Member 06/06/2012
** Signature of Reporting Person Date

/s/ Cornwall Capital Management LP, By: CMGP LLC, its General Partner, By: James Mai, its Managing Member 06/06/2012
** Signature of Reporting Person Date

/s/ Cornwall GP, LLC, By: James Mai, its Managing Member 06/06/2012
** Signature of Reporting Person Date

/s/ James Mai 06/06/2012
** Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) (1) The securities reported herein are held directly by Cornwall Master LP, an exempted limited partnership organized under the laws of the Cayman Islands ("Cornwall Master"). Cornwall Capital Management LP, a Delaware limited partnership ("Cornwall Management"), serves as investment manager to Cornwall Master and Cornwall GP, LLC, a Delaware limited liability company (the "General Partner") serves as the general partner of Cornwall Master. James Mai ("Mr. Mai") is the principal and Chief Investment Officer of Cornwall Management and the managing member of the General Partner. Each of the reporting persons disclaims beneficial ownership of the securities to which this Form 3 relates for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except as to such extent of the reporting person's pecuniary interest in the securities.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.

XNAS:APFC Insider Activity 3 Filling

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XNAS:APFC Insider Activity 3 Filing - 6/4/2012
Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol |  Title Star Rating |  Category |  Total Assets |  Top Holdings |  Top Sectors |  Symbol |  Name Title |  Date |  Author |  Collection |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol / Ticker |  Title Star Rating |  Category |  Total Assets |  Symbol / Ticker |  Name Title |  Date |  Author |  Collection |  Popularity |  Interest Title |  Date |  Company |  Symbol |  Interest |  Popularity Title |  Date |  Company |  Symbol |  Interest |  Popularity

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