Sec Form 4 Filing - Blue Harbour Group, L.P. @ BWX Technologies, Inc. - 2017-06-07

Insider filing report for Changes in Beneficial Ownership
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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
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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1. Name and Address of Reporting Person
Blue Harbour Group, L.P.
2. Issuer Name and Ticker or Trading Symbol
BWX Technologies, Inc. [ BWXT]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X __ Director _____ 10% Owner
_____ Officer (give title below) X __ Other (specify below)
See Remarks
(Last) (First) (Middle)
646 STEAMBOAT ROAD
3. Date of Earliest Transaction (MM/DD/YY)
06/07/2017
(Street)
GREENWICH, CT06830
4. If Amendment, Date Original Filed (MM/DD/YY)
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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, par value $0.01 per share ("Common Stock") 06/07/2017 S 3,295,098 D $ 47.425 1,992,829 I See footnotes ( 1 ) ( 2 )
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(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
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Blue Harbour Group, L.P.
646 STEAMBOAT ROAD
GREENWICH, CT06830
X See Remarks
Blue Harbour Holdings, LLC
646 STEAMBOAT ROAD
GREENWICH, CT06830
X See Remarks
ROBBINS CLIFTON S
646 STEAMBOAT ROAD
GREENWICH, CT06830
X See Remarks
Signatures
BLUE HARBOUR GROUP, L.P., By: Blue Harbour Holdings, LLC, its general partner, By:/s/ Clifton S. Robbins, its Managing Member 06/09/2017
Signature of Reporting Person Date
BLUE HARBOUR HOLDINGS, LLC, By: /s/ Clifton S. Robbins, its Managing Member 06/09/2017
Signature of Reporting Person Date
/s/ Clifton S. Robbins 06/09/2017
Signature of Reporting Person Date
Explanation of Responses:
( 1 )This Form 4 is filed by Blue Harbour Group, L.P. (the "Manager"), Blue Harbour Holdings, LLC ("Manager GP") and Clifton S. Robbins. Manager GP is the general partner of Manager. Mr. Robbins is the managing member of Manager GP.
( 2 )Pursuant to Rule 16a-1 under the Securities Exchange Act of 1934, as amended (the "Act"), each of the Reporting Persons may be deemed to be the beneficial owner of the securities reported herein to the extent of his or its pecuniary interest therein, but disclaims beneficial ownership in excess of such amount; and pursuant to Rule 16a-1(a)(4) under the Act, this filing shall not be deemed an admission that any of the Reporting Persons is, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any securities reported herein in excess of such amount.

Remarks:
Because Robb A. LeMasters, an employee of the Manager, serves as a member of the board of directors of the Issuer, each of the Reporting Persons may be deemed to be a director by deputization.

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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